1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
30 ------------------------------------------------------------------------------
32 -- This package defines the structure of the abstract syntax tree. The Tree
33 -- package provides a basic tree structure. Sinfo describes how this structure
34 -- is used to represent the syntax of an Ada program.
36 -- The grammar in the RM is followed very closely in the tree design, and is
37 -- repeated as part of this source file.
39 -- The tree contains not only the full syntactic representation of the
40 -- program, but also the results of semantic analysis. In particular, the
41 -- nodes for defining identifiers, defining character literals and defining
42 -- operator symbols, collectively referred to as entities, represent what
43 -- would normally be regarded as the symbol table information. In addition a
44 -- number of the tree nodes contain semantic information.
46 -- WARNING: Several files are automatically generated from this package.
47 -- See below for details.
49 with Namet; use Namet;
50 with Types; use Types;
51 with Uintp; use Uintp;
52 with Urealp; use Urealp;
56 ---------------------------------
57 -- Making Changes to This File --
58 ---------------------------------
60 -- If changes are made to this file, a number of related steps must be
61 -- carried out to ensure consistency. First, if a field access function is
62 -- added, it appears in seven places:
64 -- The documentation associated with the node
65 -- The spec of the access function in sinfo.ads
66 -- The body of the access function in sinfo.adb
67 -- The pragma Inline at the end of sinfo.ads for the access function
68 -- The spec of the set procedure in sinfo.ads
69 -- The body of the set procedure in sinfo.adb
70 -- The pragma Inline at the end of sinfo.ads for the set procedure
72 -- The field chosen must be consistent in all places, and, for a node that
73 -- is a subexpression, must not overlap any of the standard expression
76 -- In addition, if any of the standard expression fields is changed, then
77 -- the utility program which creates the Treeprs spec (in file treeprs.ads)
78 -- must be updated appropriately, since it special cases expression fields.
80 -- If a new tree node is added, then the following changes are made
82 -- Add it to the documentation in the appropriate place
83 -- Add its fields to this documentation section
84 -- Define it in the appropriate classification in Node_Kind
85 -- In the body (sinfo), add entries to the access functions for all
86 -- its fields (except standard expression fields) to include the new
87 -- node in the checks.
88 -- Add an appropriate section to the case statement in sprint.adb
89 -- Add an appropriate section to the case statement in sem.adb
90 -- Add an appropriate section to the case statement in exp_util.adb
91 -- (Insert_Actions procedure)
92 -- For a subexpression, add an appropriate section to the case
93 -- statement in sem_eval.adb
94 -- For a subexpression, add an appropriate section to the case
95 -- statement in sem_res.adb
97 -- Finally, four utility programs must be run:
99 -- Run CSinfo to check that you have made the changes consistently. It
100 -- checks most of the rules given above, with clear error messages. This
101 -- utility reads sinfo.ads and sinfo.adb and generates a report to
104 -- Run XSinfo to create sinfo.h, the corresponding C header. This
105 -- utility reads sinfo.ads and generates sinfo.h. Note that it does
106 -- not need to read sinfo.adb, since the contents of the body are
107 -- algorithmically determinable from the spec.
109 -- Run XTreeprs to create treeprs.ads, an updated version of the module
110 -- that is used to drive the tree print routine. This utility reads (but
111 -- does not modify) treeprs.adt, the template that provides the basic
112 -- structure of the file, and then fills in the data from the comments
115 -- Run XNmake to create nmake.ads and nmake.adb, the package body and
116 -- spec of the Nmake package which contains functions for constructing
119 -- All of the above steps except CSinfo are done automatically by the
120 -- build scripts when you do a full bootstrap.
122 -- Note: sometime we could write a utility that actually generated the body
123 -- of sinfo from the spec instead of simply checking it, since, as noted
124 -- above, the contents of the body can be determined from the spec.
126 --------------------------------
127 -- Implicit Nodes in the Tree --
128 --------------------------------
130 -- Generally the structure of the tree very closely follows the grammar as
131 -- defined in the RM. However, certain nodes are omitted to save space and
132 -- simplify semantic processing. Two general classes of such omitted nodes
135 -- If the only possibilities for a non-terminal are one or more other
136 -- non-terminals (i.e. the rule is a "skinny" rule), then usually the
137 -- corresponding node is omitted from the tree, and the target construct
138 -- appears directly. For example, a real type definition is either
139 -- floating point definition or a fixed point definition. No explicit node
140 -- appears for real type definition. Instead either the floating point
141 -- definition or fixed point definition appears directly.
143 -- If a non-terminal corresponds to a list of some other non-terminal
144 -- (possibly with separating punctuation), then usually it is omitted from
145 -- the tree, and a list of components appears instead. For example,
146 -- sequence of statements does not appear explicitly in the tree. Instead
147 -- a list of statements appears directly.
149 -- Some additional cases of omitted nodes occur and are documented
150 -- individually. In particular, many nodes are omitted in the tree
151 -- generated for an expression.
153 -------------------------------------------
154 -- Handling of Defining Identifier Lists --
155 -------------------------------------------
157 -- In several declarative forms in the syntax, lists of defining
158 -- identifiers appear (object declarations, component declarations, number
159 -- declarations etc.)
161 -- The semantics of such statements are equivalent to a series of identical
162 -- declarations of single defining identifiers (except that conformance
163 -- checks require the same grouping of identifiers in the parameter case).
165 -- To simplify semantic processing, the parser breaks down such multiple
166 -- declaration cases into sequences of single declarations, duplicating
167 -- type and initialization information as required. The flags More_Ids and
168 -- Prev_Ids are used to record the original form of the source in the case
169 -- where the original source used a list of names, More_Ids being set on
170 -- all but the last name and Prev_Ids being set on all but the first name.
171 -- These flags are used to reconstruct the original source (e.g. in the
172 -- Sprint package), and also are included in the conformance checks, but
173 -- otherwise have no semantic significance.
175 -- Note: the reason that we use More_Ids and Prev_Ids rather than
176 -- First_Name and Last_Name flags is so that the flags are off in the
177 -- normal one identifier case, which minimizes tree print output.
179 -----------------------
180 -- Use of Node Lists --
181 -----------------------
183 -- With a few exceptions, if a construction of the form {non-terminal}
184 -- appears in the tree, lists are used in the corresponding tree node (see
185 -- package Nlists for handling of node lists). In this case a field of the
186 -- parent node points to a list of nodes for the non-terminal. The field
187 -- name for such fields has a plural name which always ends in "s". For
188 -- example, a case statement has a field Alternatives pointing to list of
189 -- case statement alternative nodes.
191 -- Only fields pointing to lists have names ending in "s", so generally the
192 -- structure is strongly typed, fields not ending in s point to single
193 -- nodes, and fields ending in s point to lists.
195 -- The following example shows how a traversal of a list is written. We
196 -- suppose here that Stmt points to a N_Case_Statement node which has a
197 -- list field called Alternatives:
199 -- Alt := First (Alternatives (Stmt));
200 -- while Present (Alt) loop
202 -- -- processing for case statement alternative Alt
204 -- Alt := Next (Alt);
207 -- The Present function tests for Empty, which in this case signals the end
208 -- of the list. First returns Empty immediately if the list is empty.
209 -- Present is defined in Atree, First and Next are defined in Nlists.
211 -- The exceptions to this rule occur with {DEFINING_IDENTIFIERS} in all
212 -- contexts, which is handled as described in the previous section, and
213 -- with {,library_unit_NAME} in the N_With_Clause mode, which is handled
214 -- using the First_Name and Last_Name flags, as further detailed in the
215 -- description of the N_With_Clause node.
221 -- Pragmas can appear in many different context, but are not included in
222 -- the grammar. Still they must appear in the tree, so they can be properly
225 -- Two approaches are used. In some cases, an extra field is defined in an
226 -- appropriate node that contains a list of pragmas appearing in the
227 -- expected context. For example pragmas can appear before an
228 -- Accept_Alternative in a Selective_Accept_Statement, and these pragmas
229 -- appear in the Pragmas_Before field of the N_Accept_Alternative node.
231 -- The other approach is to simply allow pragmas to appear in syntactic
232 -- lists where the grammar (of course) does not include the possibility.
233 -- For example, the Variants field of an N_Variant_Part node points to a
234 -- list that can contain both N_Pragma and N_Variant nodes.
236 -- To make processing easier in the latter case, the Nlists package
237 -- provides a set of routines (First_Non_Pragma, Last_Non_Pragma,
238 -- Next_Non_Pragma, Prev_Non_Pragma) that allow such lists to be handled
239 -- ignoring all pragmas.
241 -- In the case of the variants list, we can either write:
243 -- Variant := First (Variants (N));
244 -- while Present (Variant) loop
246 -- Variant := Next (Variant);
251 -- Variant := First_Non_Pragma (Variants (N));
252 -- while Present (Variant) loop
254 -- Variant := Next_Non_Pragma (Variant);
257 -- In the first form of the loop, Variant can either be an N_Pragma or an
258 -- N_Variant node. In the second form, Variant can only be N_Variant since
259 -- all pragmas are skipped.
261 ---------------------
262 -- Optional Fields --
263 ---------------------
265 -- Fields which correspond to a section of the syntax enclosed in square
266 -- brackets are generally omitted (and the corresponding field set to Empty
267 -- for a node, or No_List for a list). The documentation of such fields
268 -- notes these cases. One exception to this rule occurs in the case of
269 -- possibly empty statement sequences (such as the sequence of statements
270 -- in an entry call alternative). Such cases appear in the syntax rules as
271 -- [SEQUENCE_OF_STATEMENTS] and the fields corresponding to such optional
272 -- statement sequences always contain an empty list (not No_List) if no
273 -- statements are present.
275 -- Note: the utility program that constructs the body and spec of the Nmake
276 -- package relies on the format of the comments to determine if a field
277 -- should have a default value in the corresponding make routine. The rule
278 -- is that if the first line of the description of the field contains the
279 -- string "(set to xxx if", then a default value of xxx is provided for
280 -- this field in the corresponding Make_yyy routine.
282 -----------------------------------
283 -- Note on Body/Spec Terminology --
284 -----------------------------------
286 -- In informal discussions about Ada, it is customary to refer to package
287 -- and subprogram specs and bodies. However, this is not technically
288 -- correct, what is normally referred to as a spec or specification is in
289 -- fact a package declaration or subprogram declaration. We are careful in
290 -- GNAT to use the correct terminology and in particular, the full word
291 -- specification is never used as an incorrect substitute for declaration.
292 -- The structure and terminology used in the tree also reflects the grammar
293 -- and thus uses declaration and specification in the technically correct
296 -- However, there are contexts in which the informal terminology is useful.
297 -- We have the word "body" to refer to the Interp_Etype declared by the
298 -- declaration of a unit body, and in some contexts we need similar term to
299 -- refer to the entity declared by the package or subprogram declaration,
300 -- and simply using declaration can be confusing since the body also has a
303 -- An example of such a context is the link between the package body and
304 -- its declaration. With_Declaration is confusing, since the package body
305 -- itself is a declaration.
307 -- To deal with this problem, we reserve the informal term Spec, i.e. the
308 -- popular abbreviation used in this context, to refer to the entity
309 -- declared by the package or subprogram declaration. So in the above
310 -- example case, the field in the body is called With_Spec.
312 -- Another important context for the use of the word Spec is in error
313 -- messages, where a hyper-correct use of declaration would be confusing to
314 -- a typical Ada programmer, and even for an expert programmer can cause
315 -- confusion since the body has a declaration as well.
319 -- Declaration always refers to the syntactic entity that is called
320 -- a declaration. In particular, subprogram declaration
321 -- and package declaration are used to describe the
322 -- syntactic entity that includes the semicolon.
324 -- Specification always refers to the syntactic entity that is called
325 -- a specification. In particular, the terms procedure
326 -- specification, function specification, package
327 -- specification, subprogram specification always refer
328 -- to the syntactic entity that has no semicolon.
330 -- Spec is an informal term, used to refer to the entity
331 -- that is declared by a task declaration, protected
332 -- declaration, generic declaration, subprogram
333 -- declaration or package declaration.
335 -- This convention is followed throughout the GNAT documentation
336 -- both internal and external, and in all error message text.
338 ------------------------
339 -- Internal Use Nodes --
340 ------------------------
342 -- These are Node_Kind settings used in the internal implementation which
343 -- are not logically part of the specification.
346 -- Completely unused entry at the start of the enumeration type. This
347 -- is inserted so that no legitimate value is zero, which helps to get
348 -- better debugging behavior, since zero is a likely uninitialized value).
351 -- Completely unused entry at the end of the enumeration type. This is
352 -- handy so that arrays with Node_Kind as the index type have an extra
353 -- entry at the end (see for example the use of the Pchar_Pos_Array in
354 -- Treepr, where the extra entry provides the limit value when dealing with
355 -- the last used entry in the array).
357 -----------------------------------------
358 -- Note on the settings of Sloc fields --
359 -----------------------------------------
361 -- The Sloc field of nodes that come from the source is set by the parser.
362 -- For internal nodes, and nodes generated during expansion the Sloc is
363 -- usually set in the call to the constructor for the node. In general the
364 -- Sloc value chosen for an internal node is the Sloc of the source node
365 -- whose processing is responsible for the expansion. For example, the Sloc
366 -- of an inherited primitive operation is the Sloc of the corresponding
367 -- derived type declaration.
369 -- For the nodes of a generic instantiation, the Sloc value is encoded to
370 -- represent both the original Sloc in the generic unit, and the Sloc of
371 -- the instantiation itself. See Sinput.ads for details.
373 -- Subprogram instances create two callable entities: one is the visible
374 -- subprogram instance, and the other is an anonymous subprogram nested
375 -- within a wrapper package that contains the renamings for the actuals.
376 -- Both of these entities have the Sloc of the defining entity in the
377 -- instantiation node. This simplifies some ASIS queries.
379 -----------------------
380 -- Field Definitions --
381 -----------------------
383 -- In the following node definitions, all fields, both syntactic and
384 -- semantic, are documented. The one exception is in the case of entities
385 -- (defining identifiers, character literals and operator symbols), where
386 -- the usage of the fields depends on the entity kind. Entity fields are
387 -- fully documented in the separate package Einfo.
389 -- In the node definitions, three common sets of fields are abbreviated to
390 -- save both space in the documentation, and also space in the string
391 -- (defined in Tree_Print_Strings) used to print trees. The following
392 -- abbreviations are used:
394 -- Note: the utility program that creates the Treeprs spec (in the file
395 -- xtreeprs.adb) knows about the special fields here, so it must be
396 -- modified if any change is made to these fields.
398 -- "plus fields for binary operator"
399 -- Chars (Name1) Name_Id for the operator
400 -- Left_Opnd (Node2) left operand expression
401 -- Right_Opnd (Node3) right operand expression
402 -- Entity (Node4-Sem) defining entity for operator
403 -- Associated_Node (Node4-Sem) for generic processing
404 -- Do_Overflow_Check (Flag17-Sem) set if overflow check needed
405 -- Has_Private_View (Flag11-Sem) set in generic units.
407 -- "plus fields for unary operator"
408 -- Chars (Name1) Name_Id for the operator
409 -- Right_Opnd (Node3) right operand expression
410 -- Entity (Node4-Sem) defining entity for operator
411 -- Associated_Node (Node4-Sem) for generic processing
412 -- Do_Overflow_Check (Flag17-Sem) set if overflow check needed
413 -- Has_Private_View (Flag11-Sem) set in generic units.
415 -- "plus fields for expression"
416 -- Paren_Count number of parentheses levels
417 -- Etype (Node5-Sem) type of the expression
418 -- Is_Overloaded (Flag5-Sem) >1 type interpretation exists
419 -- Is_Static_Expression (Flag6-Sem) set for static expression
420 -- Raises_Constraint_Error (Flag7-Sem) evaluation raises CE
421 -- Must_Not_Freeze (Flag8-Sem) set if must not freeze
422 -- Do_Range_Check (Flag9-Sem) set if a range check needed
423 -- Assignment_OK (Flag15-Sem) set if modification is OK
424 -- Is_Controlling_Actual (Flag16-Sem) set for controlling argument
426 -- Note: see under (EXPRESSION) for further details on the use of
427 -- the Paren_Count field to record the number of parentheses levels.
429 -- Node_Kind is the type used in the Nkind field to indicate the node kind.
430 -- The actual definition of this type is given later (the reason for this
431 -- is that we want the descriptions ordered by logical chapter in the RM,
432 -- but the type definition is reordered to facilitate the definition of
433 -- some subtype ranges. The individual descriptions of the nodes show how
434 -- the various fields are used in each node kind, as well as providing
435 -- logical names for the fields. Functions and procedures are provided for
436 -- accessing and setting these fields using these logical names.
438 -----------------------
439 -- Gigi Restrictions --
440 -----------------------
442 -- The tree passed to Gigi is more restricted than the general tree form.
443 -- For example, as a result of expansion, most of the tasking nodes can
444 -- never appear. For each node to which either a complete or partial
445 -- restriction applies, a note entitled "Gigi restriction" appears which
446 -- documents the restriction.
448 -- Note that most of these restrictions apply only to trees generated when
449 -- code is being generated, since they involved expander actions that
452 ------------------------
453 -- Common Flag Fields --
454 ------------------------
456 -- The following flag fields appear in all nodes
459 -- This flag is used to indicate that a node (and all its children have
460 -- been analyzed. It is used to avoid reanalysis of a node that has
461 -- already been analyzed, both for efficiency and functional correctness
464 -- Comes_From_Source (Flag2)
465 -- This flag is on for any nodes built by the scanner or parser from the
466 -- source program, and off for any nodes built by the analyzer or
467 -- expander. It indicates that a node comes from the original source.
468 -- This flag is defined in Atree.
470 -- Error_Posted (Flag3)
471 -- This flag is used to avoid multiple error messages being posted on or
472 -- referring to the same node. This flag is set if an error message
473 -- refers to a node or is posted on its source location, and has the
474 -- effect of inhibiting further messages involving this same node.
476 -- Has_Dynamic_Length_Check (Flag10-Sem)
477 -- This flag is present on all nodes. It is set to indicate that one of
478 -- the routines in unit Checks has generated a length check action which
479 -- has been inserted at the flagged node. This is used to avoid the
480 -- generation of duplicate checks.
482 -- Has_Dynamic_Range_Check (Flag12-Sem)
483 -- This flag is present on all nodes. It is set to indicate that one of
484 -- the routines in unit Checks has generated a range check action which
485 -- has been inserted at the flagged node. This is used to avoid the
486 -- generation of duplicate checks.
488 -- Has_Local_Raise (Flag8-Sem)
489 -- Present in exception handler nodes. Set if the handler can be entered
490 -- via a local raise that gets transformed to a goto statement. This will
491 -- always be set if Local_Raise_Statements is non-empty, but can also be
492 -- set as a result of generation of N_Raise_xxx nodes, or flags set in
493 -- nodes requiring generation of back end checks.
495 ------------------------------------
496 -- Description of Semantic Fields --
497 ------------------------------------
499 -- The meaning of the syntactic fields is generally clear from their names
500 -- without any further description, since the names are chosen to
501 -- correspond very closely to the syntax in the reference manual. This
502 -- section describes the usage of the semantic fields, which are used to
503 -- contain additional information determined during semantic analysis.
505 -- ABE_Is_Certain (Flag18-Sem)
506 -- This flag is set in an instantiation node or a call node is determined
507 -- to be sure to raise an ABE. This is used to trigger special handling
508 -- of such cases, particularly in the instantiation case where we avoid
509 -- instantiating the body if this flag is set. This flag is also present
510 -- in an N_Formal_Package_Declaration_Node since formal package
511 -- declarations are treated like instantiations, but it is always set to
512 -- False in this context.
514 -- Accept_Handler_Records (List5-Sem)
515 -- This field is present only in an N_Accept_Alternative node. It is used
516 -- to temporarily hold the exception handler records from an accept
517 -- statement in a selective accept. These exception handlers will
518 -- eventually be placed in the Handler_Records list of the procedure
519 -- built for this accept (see Expand_N_Selective_Accept procedure in
520 -- Exp_Ch9 for further details).
522 -- Access_Types_To_Process (Elist2-Sem)
523 -- Present in N_Freeze_Entity nodes for Incomplete or private types.
524 -- Contains the list of access types which may require specific treatment
525 -- when the nature of the type completion is completely known. An example
526 -- of such treatment is the generation of the associated_final_chain.
528 -- Actions (List1-Sem)
529 -- This field contains a sequence of actions that are associated with the
530 -- node holding the field. See the individual node types for details of
531 -- how this field is used, as well as the description of the specific use
532 -- for a particular node type.
534 -- Activation_Chain_Entity (Node3-Sem)
535 -- This is used in tree nodes representing task activators (blocks,
536 -- subprogram bodies, package declarations, and task bodies). It is
537 -- initially Empty, and then gets set to point to the entity for the
538 -- declared Activation_Chain variable when the first task is declared.
539 -- When tasks are declared in the corresponding declarative region this
540 -- entity is located by name (its name is always _Chain) and the declared
541 -- tasks are added to the chain. Note that N_Extended_Return_Statement
542 -- does not have this attribute, although it does have an activation
543 -- chain. This chain is used to store the tasks temporarily, and is not
544 -- used for activating them. On successful completion of the return
545 -- statement, the tasks are moved to the caller's chain, and the caller
548 -- Acts_As_Spec (Flag4-Sem)
549 -- A flag set in the N_Subprogram_Body node for a subprogram body which
550 -- is acting as its own spec, except in the case of a library level
551 -- subprogram, in which case the flag is set on the parent compilation
552 -- unit node instead (see further description in spec of Lib package).
553 -- ??? Above note about Lib is dubious since lib.ads does not mention
554 -- Acts_As_Spec at all.
556 -- Actual_Designated_Subtype (Node4-Sem)
557 -- Present in N_Free_Statement and N_Explicit_Dereference nodes. If gigi
558 -- needs to known the dynamic constrained subtype of the designated
559 -- object, this attribute is set to that type. This is done for
560 -- N_Free_Statements for access-to-classwide types and access to
561 -- unconstrained packed array types, and for N_Explicit_Dereference when
562 -- the designated type is an unconstrained packed array and the
563 -- dereference is the prefix of a 'Size attribute reference.
565 -- Address_Warning_Posted (Flag18-Sem)
566 -- Present in N_Attribute_Definition nodes. Set to indicate that we have
567 -- posted a warning for the address clause regarding size or alignment
568 -- issues. Used to inhibit multiple redundant messages.
570 -- Aggregate_Bounds (Node3-Sem)
571 -- Present in array N_Aggregate nodes. If the aggregate contains
572 -- component associations this field points to an N_Range node whose
573 -- bounds give the lowest and highest discrete choice values. If the
574 -- named aggregate contains a dynamic or null choice this field is empty.
575 -- If the aggregate contains positional elements this field points to an
576 -- N_Integer_Literal node giving the number of positional elements. Note
577 -- that if the aggregate contains positional elements and an other choice
578 -- the N_Integer_Literal only accounts for the number of positional
581 -- All_Others (Flag11-Sem)
582 -- Present in an N_Others_Choice node. This flag is set for an others
583 -- exception where all exceptions are to be caught, even those that are
584 -- not normally handled (in particular the tasking abort signal). This
585 -- is used for translation of the at end handler into a normal exception
588 -- Assignment_OK (Flag15-Sem)
589 -- This flag is set in a subexpression node for an object, indicating
590 -- that the associated object can be modified, even if this would not
591 -- normally be permissible (either by direct assignment, or by being
592 -- passed as an out or in-out parameter). This is used by the expander
593 -- for a number of purposes, including initialization of constants and
594 -- limited type objects (such as tasks), setting discriminant fields,
595 -- setting tag values, etc. N_Object_Declaration nodes also have this
596 -- flag defined. Here it is used to indicate that an initialization
597 -- expression is valid, even where it would normally not be allowed
598 -- (e.g. where the type involved is limited).
600 -- Associated_Node (Node4-Sem)
601 -- Present in nodes that can denote an entity: identifiers, character
602 -- literals, operator symbols, expanded names, operator nodes, and
603 -- attribute reference nodes (all these nodes have an Entity field).
604 -- This field is also present in N_Aggregate, N_Selected_Component, and
605 -- N_Extension_Aggregate nodes. This field is used in generic processing
606 -- to create links between the generic template and the generic copy.
607 -- See Sem_Ch12.Get_Associated_Node for full details. Note that this
608 -- field overlaps Entity, which is fine, since, as explained in Sem_Ch12,
609 -- the normal function of Entity is not required at the point where the
610 -- Associated_Node is set. Note also, that in generic templates, this
611 -- means that the Entity field does not necessarily point to an Entity.
612 -- Since the back end is expected to ignore generic templates, this is
615 -- At_End_Proc (Node1)
616 -- This field is present in an N_Handled_Sequence_Of_Statements node.
617 -- It contains an identifier reference for the cleanup procedure to be
618 -- called. See description of this node for further details.
620 -- Backwards_OK (Flag6-Sem)
621 -- A flag present in the N_Assignment_Statement node. It is used only
622 -- if the type being assigned is an array type, and is set if analysis
623 -- determines that it is definitely safe to do the copy backwards, i.e.
624 -- starting at the highest addressed element. This is the case if either
625 -- the operands do not overlap, or they may overlap, but if they do,
626 -- then the left operand is at a higher address than the right operand.
628 -- Note: If neither of the flags Forwards_OK or Backwards_OK is set, it
629 -- means that the front end could not determine that either direction is
630 -- definitely safe, and a runtime check may be required if the backend
631 -- cannot figure it out. If both flags Forwards_OK and Backwards_OK are
632 -- set, it means that the front end can assure no overlap of operands.
634 -- Body_To_Inline (Node3-Sem)
635 -- present in subprogram declarations. Denotes analyzed but unexpanded
636 -- body of subprogram, to be used when inlining calls. Present when the
637 -- subprogram has an Inline pragma and inlining is enabled. If the
638 -- declaration is completed by a renaming_as_body, and the renamed en-
639 -- tity is a subprogram, the Body_To_Inline is the name of that entity,
640 -- which is used directly in later calls to the original subprogram.
642 -- Body_Required (Flag13-Sem)
643 -- A flag that appears in the N_Compilation_Unit node indicating that
644 -- the corresponding unit requires a body. For the package case, this
645 -- indicates that a completion is required. In Ada 95, if the flag is not
646 -- set for the package case, then a body may not be present. In Ada 83,
647 -- if the flag is not set for the package case, then body is optional.
648 -- For a subprogram declaration, the flag is set except in the case where
649 -- a pragma Import or Interface applies, in which case no body is
650 -- permitted (in Ada 83 or Ada 95).
652 -- By_Ref (Flag5-Sem)
653 -- Present in N_Simple_Return_Statement and N_Extended_Return_Statement,
654 -- this flag is set when the returned expression is already allocated on
655 -- the secondary stack and thus the result is passed by reference rather
656 -- than copied another time.
658 -- Check_Address_Alignment (Flag11-Sem)
659 -- A flag present in N_Attribute_Definition clause for a 'Address
660 -- attribute definition. This flag is set if a dynamic check should be
661 -- generated at the freeze point for the entity to which this address
662 -- clause applies. The reason that we need this flag is that we want to
663 -- check for range checks being suppressed at the point where the
664 -- attribute definition clause is given, rather than testing this at the
667 -- Coextensions (Elist4-Sem)
668 -- Present in allocators nodes. Points to list of allocators for the
669 -- access discriminants of the allocated object.
671 -- Comes_From_Extended_Return_Statement (Flag18-Sem)
672 -- Present in N_Simple_Return_Statement nodes. True if this node was
673 -- constructed as part of the N_Extended_Return_Statement expansion.
675 -- Compile_Time_Known_Aggregate (Flag18-Sem)
676 -- Present in N_Aggregate nodes. Set for aggregates which can be fully
677 -- evaluated at compile time without raising constraint error. Such
678 -- aggregates can be passed as is to Gigi without any expansion. See
679 -- Sem_Aggr for the specific conditions under which an aggregate has this
680 -- flag set. See also the flag Static_Processing_OK.
682 -- Componentwise_Assignment (Flag14-Sem)
683 -- Present in N_Assignment_Statement nodes. Set for a record assignment
684 -- where all that needs doing is to expand it into component-by-component
685 -- assignments. This is used internally for the case of tagged types with
686 -- rep clauses, where we need to avoid recursion (we don't want to try to
687 -- generate a call to the primitive operation, because this is the case
688 -- where we are compiling the primitive operation). Note that when we are
689 -- expanding component assignments in this case, we never assign the _tag
690 -- field, but we recursively assign components of the parent type.
692 -- Condition_Actions (List3-Sem)
693 -- This field appears in else-if nodes and in the iteration scheme node
694 -- for while loops. This field is only used during semantic processing to
695 -- temporarily hold actions inserted into the tree. In the tree passed
696 -- to gigi, the condition actions field is always set to No_List. For
697 -- details on how this field is used, see the routine Insert_Actions in
698 -- package Exp_Util, and also the expansion routines for the relevant
701 -- Context_Pending (Flag16-Sem)
702 -- This field appears in Compilation_Unit nodes, to indicate that the
703 -- context of the unit is being compiled. Used to detect circularities
704 -- that are not otherwise detected by the loading mechanism. Such
705 -- circularities can occur in the presence of limited and non-limited
706 -- with_clauses that mention the same units.
708 -- Controlling_Argument (Node1-Sem)
709 -- This field is set in procedure and function call nodes if the call
710 -- is a dispatching call (it is Empty for a non-dispatching call). It
711 -- indicates the source of the call's controlling tag. For procedure
712 -- calls, the Controlling_Argument is one of the actuals. For function
713 -- that has a dispatching result, it is an entity in the context of the
714 -- call that can provide a tag, or else it is the tag of the root type
715 -- of the class. It can also specify a tag directly rather than being a
716 -- tagged object. The latter is needed by the implementations of AI-239
719 -- Conversion_OK (Flag14-Sem)
720 -- A flag set on type conversion nodes to indicate that the conversion
721 -- is to be considered as being valid, even though it is the case that
722 -- the conversion is not valid Ada. This is used for attributes Enum_Rep,
723 -- Fixed_Value and Integer_Value, for internal conversions done for
724 -- fixed-point operations, and for certain conversions for calls to
725 -- initialization procedures. If Conversion_OK is set, then Etype must be
726 -- set (the analyzer assumes that Etype has been set). For the case of
727 -- fixed-point operands, it also indicates that the conversion is to be
728 -- direct conversion of the underlying integer result, with no regard to
729 -- the small operand.
731 -- Corresponding_Body (Node5-Sem)
732 -- This field is set in subprogram declarations, package declarations,
733 -- entry declarations of protected types, and in generic units. It
734 -- points to the defining entity for the corresponding body (NOT the
735 -- node for the body itself).
737 -- Corresponding_Formal_Spec (Node3-Sem)
738 -- This field is set in subprogram renaming declarations, where it points
739 -- to the defining entity for a formal subprogram in the case where the
740 -- renaming corresponds to a generic formal subprogram association in an
741 -- instantiation. The field is Empty if the renaming does not correspond
742 -- to such a formal association.
744 -- Corresponding_Generic_Association (Node5-Sem)
745 -- This field is defined for object declarations and object renaming
746 -- declarations. It is set for the declarations within an instance that
747 -- map generic formals to their actuals. If set, the field points to
748 -- a generic_association which is the original parent of the expression
749 -- or name appearing in the declaration. This simplifies ASIS queries.
751 -- Corresponding_Integer_Value (Uint4-Sem)
752 -- This field is set in real literals of fixed-point types (it is not
753 -- used for floating-point types). It contains the integer value used
754 -- to represent the fixed-point value. It is also set on the universal
755 -- real literals used to represent bounds of fixed-point base types
756 -- and their first named subtypes.
758 -- Corresponding_Spec (Node5-Sem)
759 -- This field is set in subprogram, package, task, and protected body
760 -- nodes, where it points to the defining entity in the corresponding
761 -- spec. The attribute is also set in N_With_Clause nodes where it points
762 -- to the defining entity for the with'ed spec, and in a subprogram
763 -- renaming declaration when it is a Renaming_As_Body. The field is Empty
764 -- if there is no corresponding spec, as in the case of a subprogram body
765 -- that serves as its own spec.
767 -- Corresponding_Stub (Node3-Sem)
768 -- This field is present in an N_Subunit node. It holds the node in
769 -- the parent unit that is the stub declaration for the subunit. It is
770 -- set when analysis of the stub forces loading of the proper body. If
771 -- expansion of the proper body creates new declarative nodes, they are
772 -- inserted at the point of the corresponding_stub.
774 -- Dcheck_Function (Node5-Sem)
775 -- This field is present in an N_Variant node, It references the entity
776 -- for the discriminant checking function for the variant.
778 -- Debug_Statement (Node3)
779 -- This field is present in an N_Pragma node. It is used only for a Debug
780 -- pragma. The parameter is of the form of an expression, as required by
781 -- the pragma syntax, but is actually a procedure call. To simplify
782 -- semantic processing, the parser creates a copy of the argument
783 -- rearranged into a procedure call statement and places it in the
784 -- Debug_Statement field. Note that this field is considered syntactic
785 -- field, since it is created by the parser.
787 -- Default_Expression (Node5-Sem)
788 -- This field is Empty if there is no default expression. If there is a
789 -- simple default expression (one with no side effects), then this field
790 -- simply contains a copy of the Expression field (both point to the tree
791 -- for the default expression). Default_Expression is used for
792 -- conformance checking.
794 -- Discr_Check_Funcs_Built (Flag11-Sem)
795 -- This flag is present in N_Full_Type_Declaration nodes. It is set when
796 -- discriminant checking functions are constructed. The purpose is to
797 -- avoid attempting to set these functions more than once.
799 -- Do_Accessibility_Check (Flag13-Sem)
800 -- This flag is set on N_Parameter_Specification nodes to indicate
801 -- that an accessibility check is required for the parameter. It is
802 -- not yet decided who takes care of this check (TBD ???).
804 -- Do_Discriminant_Check (Flag13-Sem)
805 -- This flag is set on N_Selected_Component nodes to indicate that a
806 -- discriminant check is required using the discriminant check routine
807 -- associated with the selector. The actual check is generated by the
808 -- expander when processing selected components.
810 -- Do_Division_Check (Flag13-Sem)
811 -- This flag is set on a division operator (/ mod rem) to indicate
812 -- that a zero divide check is required. The actual check is dealt
813 -- with by the backend (all the front end does is to set the flag).
815 -- Do_Length_Check (Flag4-Sem)
816 -- This flag is set in an N_Assignment_Statement, N_Op_And, N_Op_Or,
817 -- N_Op_Xor, or N_Type_Conversion node to indicate that a length check
818 -- is required. It is not determined who deals with this flag (???).
820 -- Do_Overflow_Check (Flag17-Sem)
821 -- This flag is set on an operator where an overflow check is required on
822 -- the operation. The actual check is dealt with by the backend (all the
823 -- front end does is to set the flag). The other cases where this flag is
824 -- used is on a Type_Conversion node and for attribute reference nodes.
825 -- For a type conversion, it means that the conversion is from one base
826 -- type to another, and the value may not fit in the target base type.
827 -- See also the description of Do_Range_Check for this case. The only
828 -- attribute references which use this flag are Pred and Succ, where it
829 -- means that the result should be checked for going outside the base
830 -- range. Note that this flag is not set for modular types.
832 -- Do_Range_Check (Flag9-Sem)
833 -- This flag is set on an expression which appears in a context where a
834 -- range check is required. The target type is clear from the context.
835 -- The contexts in which this flag can appear are the following:
837 -- Right side of an assignment. In this case the target type is
838 -- taken from the left side of the assignment, which is referenced
839 -- by the Name of the N_Assignment_Statement node.
841 -- Subscript expressions in an indexed component. In this case the
842 -- target type is determined from the type of the array, which is
843 -- referenced by the Prefix of the N_Indexed_Component node.
845 -- Argument expression for a parameter, appearing either directly in
846 -- the Parameter_Associations list of a call or as the Expression of an
847 -- N_Parameter_Association node that appears in this list. In either
848 -- case, the check is against the type of the formal. Note that the
849 -- flag is relevant only in IN and IN OUT parameters, and will be
850 -- ignored for OUT parameters, where no check is required in the call,
851 -- and if a check is required on the return, it is generated explicitly
852 -- with a type conversion.
854 -- Initialization expression for the initial value in an object
855 -- declaration. In this case the Do_Range_Check flag is set on
856 -- the initialization expression, and the check is against the
857 -- range of the type of the object being declared.
859 -- The expression of a type conversion. In this case the range check is
860 -- against the target type of the conversion. See also the use of
861 -- Do_Overflow_Check on a type conversion. The distinction is that the
862 -- overflow check protects against a value that is outside the range of
863 -- the target base type, whereas a range check checks that the
864 -- resulting value (which is a value of the base type of the target
865 -- type), satisfies the range constraint of the target type.
867 -- Note: when a range check is required in contexts other than those
868 -- listed above (e.g. in a return statement), an additional type
869 -- conversion node is introduced to represent the required check.
871 -- Do_Storage_Check (Flag17-Sem)
872 -- This flag is set in an N_Allocator node to indicate that a storage
873 -- check is required for the allocation, or in an N_Subprogram_Body node
874 -- to indicate that a stack check is required in the subprogram prolog.
875 -- The N_Allocator case is handled by the routine that expands the call
876 -- to the runtime routine. The N_Subprogram_Body case is handled by the
877 -- backend, and all the semantics does is set the flag.
879 -- Do_Tag_Check (Flag13-Sem)
880 -- This flag is set on an N_Assignment_Statement, N_Function_Call,
881 -- N_Procedure_Call_Statement, N_Type_Conversion,
882 -- N_Simple_Return_Statement, or N_Extended_Return_Statement
883 -- node to indicate that the tag check can be suppressed. It is not
884 -- yet decided how this flag is used (TBD ???).
886 -- Elaborate_Present (Flag4-Sem)
887 -- This flag is set in the N_With_Clause node to indicate that pragma
888 -- Elaborate pragma appears for the with'ed units.
890 -- Elaborate_All_Desirable (Flag9-Sem)
891 -- This flag is set in the N_With_Clause mode to indicate that the static
892 -- elaboration processing has determined that an Elaborate_All pragma is
893 -- desirable for correct elaboration for this unit.
895 -- Elaborate_All_Present (Flag14-Sem)
896 -- This flag is set in the N_With_Clause node to indicate that a
897 -- pragma Elaborate_All pragma appears for the with'ed units.
899 -- Elaborate_Desirable (Flag11-Sem)
900 -- This flag is set in the N_With_Clause mode to indicate that the static
901 -- elaboration processing has determined that an Elaborate pragma is
902 -- desirable for correct elaboration for this unit.
904 -- Elaboration_Boolean (Node2-Sem)
905 -- This field is present in function and procedure specification nodes.
906 -- If set, it points to the entity for a Boolean flag that must be tested
907 -- for certain calls to check for access before elaboration. See body of
908 -- Sem_Elab for further details. This field is Empty if no elaboration
909 -- boolean is required.
911 -- Else_Actions (List3-Sem)
912 -- This field is present in conditional expression nodes. During code
913 -- expansion we use the Insert_Actions procedure (in Exp_Util) to insert
914 -- actions at an appropriate place in the tree to get elaborated at the
915 -- right time. For conditional expressions, we have to be sure that the
916 -- actions for the Else branch are only elaborated if the condition is
917 -- False. The Else_Actions field is used as a temporary parking place for
918 -- these actions. The final tree is always rewritten to eliminate the
919 -- need for this field, so in the tree passed to Gigi, this field is
920 -- always set to No_List.
922 -- Enclosing_Variant (Node2-Sem)
923 -- This field is present in the N_Variant node and identifies the Node_Id
924 -- corresponding to the immediately enclosing variant when the variant is
925 -- nested, and N_Empty otherwise. Set during semantic processing of the
926 -- variant part of a record type.
928 -- Entity (Node4-Sem)
929 -- Appears in all direct names (identifiers, character literals, and
930 -- operator symbols), as well as expanded names, and attributes that
931 -- denote entities, such as 'Class. Points to entity for corresponding
932 -- defining occurrence. Set after name resolution. For identifiers in a
933 -- WITH list, the corresponding defining occurrence is in a separately
934 -- compiled file, and Entity must be set by the library Load procedure.
936 -- Note: During name resolution, the value in Entity may be temporarily
937 -- incorrect (e.g. during overload resolution, Entity is initially set to
938 -- the first possible correct interpretation, and then later modified if
939 -- necessary to contain the correct value after resolution).
941 -- Note: This field overlaps Associated_Node, which is used during
942 -- generic processing (see Sem_Ch12 for details). Note also that in
943 -- generic templates, this means that the Entity field does not always
944 -- point to an Entity. Since the back end is expected to ignore generic
945 -- templates, this is harmless.
947 -- Note: This field also appears in N_Attribute_Definition_Clause nodes.
948 -- It is used only for stream attributes definition clauses. In this
949 -- case, it denotes a (possibly dummy) subprogram entity that is declared
950 -- conceptually at the point of the clause. Thus the visibility of the
951 -- attribute definition clause (in the sense of 8.3(23) as amended by
952 -- AI-195) can be checked by testing the visibility of that subprogram.
954 -- Note: Normally the Entity field of an identifier points to the entity
955 -- for the corresponding defining identifier, and hence the Chars field
956 -- of an identifier will match the Chars field of the entity. However,
957 -- there is no requirement that these match, and there are obscure cases
958 -- of generated code where they do not match.
960 -- Entity_Or_Associated_Node (Node4-Sem)
961 -- A synonym for both Entity and Associated_Node. Used by convention in
962 -- the code when referencing this field in cases where it is not known
963 -- whether the field contains an Entity or an Associated_Node.
966 -- Appears in all expression nodes, all direct names, and all entities.
967 -- Points to the entity for the related type. Set after type resolution.
968 -- Normally this is the actual subtype of the expression. However, in
969 -- certain contexts such as the right side of an assignment, subscripts,
970 -- arguments to calls, returned value in a function, initial value etc.
971 -- it is the desired target type. In the event that this is different
972 -- from the actual type, the Do_Range_Check flag will be set if a range
973 -- check is required. Note: if the Is_Overloaded flag is set, then Etype
974 -- points to an essentially arbitrary choice from the possible set of
977 -- Exception_Junk (Flag8-Sem)
978 -- This flag is set in a various nodes appearing in a statement sequence
979 -- to indicate that the corresponding node is an artifact of the
980 -- generated code for exception handling, and should be ignored when
981 -- analyzing the control flow of the relevant sequence of statements
982 -- (e.g. to check that it does not end with a bad return statement).
984 -- Exception_Label (Node5-Sem)
985 -- Appears in N_Push_xxx_Label nodes. Points to the entity of the label
986 -- to be used for transforming the corresponding exception into a goto,
987 -- or contains Empty, if this exception is not to be transformed. Also
988 -- appears in N_Exception_Handler nodes, where, if set, it indicates
989 -- that there may be a local raise for the handler, so that expansion
990 -- to allow a goto is required (and this field contains the label for
991 -- this goto). See Exp_Ch11.Expand_Local_Exception_Handlers for details.
993 -- Expansion_Delayed (Flag11-Sem)
994 -- Set on aggregates and extension aggregates that need a top-down rather
995 -- than bottom-up expansion. Typically aggregate expansion happens bottom
996 -- up. For nested aggregates the expansion is delayed until the enclosing
997 -- aggregate itself is expanded, e.g. in the context of a declaration. To
998 -- delay it we set this flag. This is done to avoid creating a temporary
999 -- for each level of a nested aggregates, and also to prevent the
1000 -- premature generation of constraint checks. This is also a requirement
1001 -- if we want to generate the proper attachment to the internal
1002 -- finalization lists (for record with controlled components). Top down
1003 -- expansion of aggregates is also used for in-place array aggregate
1004 -- assignment or initialization. When the full context is known, the
1005 -- target of the assignment or initialization is used to generate the
1006 -- left-hand side of individual assignment to each sub-component.
1008 -- First_Inlined_Subprogram (Node3-Sem)
1009 -- Present in the N_Compilation_Unit node for the main program. Points
1010 -- to a chain of entities for subprograms that are to be inlined. The
1011 -- Next_Inlined_Subprogram field of these entities is used as a link
1012 -- pointer with Empty marking the end of the list. This field is Empty
1013 -- if there are no inlined subprograms or inlining is not active.
1015 -- First_Named_Actual (Node4-Sem)
1016 -- Present in procedure call statement and function call nodes, and also
1017 -- in Intrinsic nodes. Set during semantic analysis to point to the first
1018 -- named parameter where parameters are ordered by declaration order (as
1019 -- opposed to the actual order in the call which may be different due to
1020 -- named associations). Note: this field points to the explicit actual
1021 -- parameter itself, not the N_Parameter_Association node (its parent).
1023 -- First_Real_Statement (Node2-Sem)
1024 -- Present in N_Handled_Sequence_Of_Statements node. Normally set to
1025 -- Empty. Used only when declarations are moved into the statement part
1026 -- of a construct as a result of wrapping an AT END handler that is
1027 -- required to cover the declarations. In this case, this field is used
1028 -- to remember the location in the statements list of the first real
1029 -- statement, i.e. the statement that used to be first in the statement
1030 -- list before the declarations were prepended.
1032 -- First_Subtype_Link (Node5-Sem)
1033 -- Present in N_Freeze_Entity node for an anonymous base type that is
1034 -- implicitly created by the declaration of a first subtype. It points
1035 -- to the entity for the first subtype.
1037 -- Float_Truncate (Flag11-Sem)
1038 -- A flag present in type conversion nodes. This is used for float to
1039 -- integer conversions where truncation is required rather than rounding.
1040 -- Note that Gigi does not handle type conversions from real to integer
1041 -- with rounding (see Expand_N_Type_Conversion).
1043 -- Forwards_OK (Flag5-Sem)
1044 -- A flag present in the N_Assignment_Statement node. It is used only
1045 -- if the type being assigned is an array type, and is set if analysis
1046 -- determines that it is definitely safe to do the copy forwards, i.e.
1047 -- starting at the lowest addressed element. This is the case if either
1048 -- the operands do not overlap, or they may overlap, but if they do,
1049 -- then the left operand is at a lower address than the right operand.
1051 -- Note: If neither of the flags Forwards_OK or Backwards_OK is set, it
1052 -- means that the front end could not determine that either direction is
1053 -- definitely safe, and a runtime check may be required if the backend
1054 -- cannot figure it out. If both flags Forwards_OK and Backwards_OK are
1055 -- set, it means that the front end can assure no overlap of operands.
1057 -- From_At_End (Flag4-Sem)
1058 -- This flag is set on an N_Raise_Statement node if it corresponds to
1059 -- the reraise statement generated as the last statement of an AT END
1060 -- handler when SJLJ exception handling is active. It is used to stop
1061 -- a bogus violation of restriction (No_Exception_Propagation), bogus
1062 -- because if the restriction is set, the reraise is not generated.
1064 -- From_At_Mod (Flag4-Sem)
1065 -- This flag is set on the attribute definition clause node that is
1066 -- generated by a transformation of an at mod phrase in a record
1067 -- representation clause. This is used to give slightly different (Ada 83
1068 -- compatible) semantics to such a clause, namely it is used to specify a
1069 -- minimum acceptable alignment for the base type and all subtypes. In
1070 -- Ada 95 terms, the actual alignment of the base type and all subtypes
1071 -- must be a multiple of the given value, and the representation clause
1072 -- is considered to be type specific instead of subtype specific.
1074 -- From_Default (Flag6-Sem)
1075 -- This flag is set on the subprogram renaming declaration created in an
1076 -- instance for a formal subprogram, when the formal is declared with a
1077 -- box, and there is no explicit actual. If the flag is present, the
1078 -- declaration is treated as an implicit reference to the formal in the
1081 -- Generic_Parent (Node5-Sem)
1082 -- Generic_Parent is defined on declaration nodes that are instances. The
1083 -- value of Generic_Parent is the generic entity from which the instance
1084 -- is obtained. Generic_Parent is also defined for the renaming
1085 -- declarations and object declarations created for the actuals in an
1086 -- instantiation. The generic parent of such a declaration is the
1087 -- corresponding generic association in the Instantiation node.
1089 -- Generic_Parent_Type (Node4-Sem)
1090 -- Generic_Parent_Type is defined on Subtype_Declaration nodes for the
1091 -- actuals of formal private and derived types. Within the instance, the
1092 -- operations on the actual are those inherited from the parent. For a
1093 -- formal private type, the parent type is the generic type itself. The
1094 -- Generic_Parent_Type is also used in an instance to determine whether a
1095 -- private operation overrides an inherited one.
1097 -- Handler_List_Entry (Node2-Sem)
1098 -- This field is present in N_Object_Declaration nodes. It is set only
1099 -- for the Handler_Record entry generated for an exception in zero cost
1100 -- exception handling mode. It references the corresponding item in the
1101 -- handler list, and is used to delete this entry if the corresponding
1102 -- handler is deleted during optimization. For further details on why
1103 -- this is required, see Exp_Ch11.Remove_Handler_Entries.
1105 -- Has_No_Elaboration_Code (Flag17-Sem)
1106 -- A flag that appears in the N_Compilation_Unit node to indicate whether
1107 -- or not elaboration code is present for this unit. It is initially set
1108 -- true for subprogram specs and bodies and for all generic units and
1109 -- false for non-generic package specs and bodies. Gigi may set the flag
1110 -- in the non-generic package case if it determines that no elaboration
1111 -- code is generated. Note that this flag is not related to the
1112 -- Is_Preelaborated status, there can be preelaborated packages that
1113 -- generate elaboration code, and non-preelaborated packages which do
1114 -- not generate elaboration code.
1116 -- Has_Priority_Pragma (Flag6-Sem)
1117 -- A flag present in N_Subprogram_Body, N_Task_Definition and
1118 -- N_Protected_Definition nodes to flag the presence of either a Priority
1119 -- or Interrupt_Priority pragma in the declaration sequence (public or
1120 -- private in the task and protected cases)
1122 -- Has_Private_View (Flag11-Sem)
1123 -- A flag present in generic nodes that have an entity, to indicate that
1124 -- the node has a private type. Used to exchange private and full
1125 -- declarations if the visibility at instantiation is different from the
1126 -- visibility at generic definition.
1128 -- Has_Relative_Deadline_Pragma (Flag9-Sem)
1129 -- A flag present in N_Subprogram_Body and N_Task_Definition nodes to
1130 -- flag the presence of a pragma Relative_Deadline.
1132 -- Has_Self_Reference (Flag13-Sem)
1133 -- Present in N_Aggregate and N_Extension_Aggregate. Indicates that one
1134 -- of the expressions contains an access attribute reference to the
1135 -- enclosing type. Such a self-reference can only appear in default-
1136 -- initialized aggregate for a record type.
1138 -- Has_Storage_Size_Pragma (Flag5-Sem)
1139 -- A flag present in an N_Task_Definition node to flag the presence of a
1140 -- Storage_Size pragma.
1142 -- Has_Task_Info_Pragma (Flag7-Sem)
1143 -- A flag present in an N_Task_Definition node to flag the presence of a
1144 -- Task_Info pragma. Used to detect duplicate pragmas.
1146 -- Has_Task_Name_Pragma (Flag8-Sem)
1147 -- A flag present in N_Task_Definition nodes to flag the presence of a
1148 -- Task_Name pragma in the declaration sequence for the task.
1150 -- Has_Wide_Character (Flag11-Sem)
1151 -- Present in string literals, set if any wide character (i.e. character
1152 -- code outside the Character range but within Wide_Character range)
1153 -- appears in the string. Used to implement pragma preference rules.
1155 -- Has_Wide_Wide_Character (Flag13-Sem)
1156 -- Present in string literals, set if any wide character (i.e. character
1157 -- code outside the Wide_Character range) appears in the string. Used to
1158 -- implement pragma preference rules.
1160 -- Hidden_By_Use_Clause (Elist4-Sem)
1161 -- An entity list present in use clauses that appear within
1162 -- instantiations. For the resolution of local entities, entities
1163 -- introduced by these use clauses have priority over global ones, and
1164 -- outer entities must be explicitly hidden/restored on exit.
1166 -- Implicit_With (Flag16-Sem)
1167 -- This flag is set in the N_With_Clause node that is implicitly
1168 -- generated for runtime units that are loaded by the expander, and also
1169 -- for package System, if it is loaded implicitly by a use of the
1170 -- 'Address or 'Tag attribute. ???There are other implicit with clauses
1173 -- Includes_Infinities (Flag11-Sem)
1174 -- This flag is present in N_Range nodes. It is set for the range of
1175 -- unconstrained float types defined in Standard, which include not only
1176 -- the given range of values, but also legitimately can include infinite
1177 -- values. This flag is false for any float type for which an explicit
1178 -- range is given by the programmer, even if that range is identical to
1179 -- the range for Float.
1181 -- Instance_Spec (Node5-Sem)
1182 -- This field is present in generic instantiation nodes, and also in
1183 -- formal package declaration nodes (formal package declarations are
1184 -- treated in a manner very similar to package instantiations). It points
1185 -- to the node for the spec of the instance, inserted as part of the
1186 -- semantic processing for instantiations in Sem_Ch12.
1188 -- Is_Accessibility_Actual (Flag12-Sem)
1189 -- Present in N_Parameter_Association nodes. True if the parameter is
1190 -- an extra actual that carries the accessibility level of the actual
1191 -- for an access parameter, in a function that dispatches on result and
1192 -- is called in a dispatching context. Used to prevent a formal/actual
1193 -- mismatch when the call is rewritten as a dispatching call.
1195 -- Is_Asynchronous_Call_Block (Flag7-Sem)
1196 -- A flag set in a Block_Statement node to indicate that it is the
1197 -- expansion of an asynchronous entry call. Such a block needs cleanup
1198 -- handler to assure that the call is cancelled.
1200 -- Is_Component_Left_Opnd (Flag13-Sem)
1201 -- Is_Component_Right_Opnd (Flag14-Sem)
1202 -- Present in concatenation nodes, to indicate that the corresponding
1203 -- operand is of the component type of the result. Used in resolving
1204 -- concatenation nodes in instances.
1206 -- Is_Controlling_Actual (Flag16-Sem)
1207 -- This flag is set on in an expression that is a controlling argument in
1208 -- a dispatching call. It is off in all other cases. See Sem_Disp for
1209 -- details of its use.
1211 -- Is_Dynamic_Coextension (Flag18-Sem)
1212 -- Present in allocator nodes, to indicate that this is an allocator
1213 -- for an access discriminant of a dynamically allocated object. The
1214 -- coextension must be deallocated and finalized at the same time as
1215 -- the enclosing object.
1217 -- Is_Entry_Barrier_Function (Flag8-Sem)
1218 -- This flag is set in an N_Subprogram_Body node which is the expansion
1219 -- of an entry barrier from a protected entry body. It is used for the
1220 -- circuitry checking for incorrect use of Current_Task.
1222 -- Is_Expanded_Build_In_Place_Call (Flag11-Sem)
1223 -- This flag is set in an N_Function_Call node to indicate that the extra
1224 -- actuals to support a build-in-place style of call have been added to
1227 -- Is_In_Discriminant_Check (Flag11-Sem)
1228 -- This flag is present in a selected component, and is used to indicate
1229 -- that the reference occurs within a discriminant check. The
1230 -- significance is that optimizations based on assuming that the
1231 -- discriminant check has a correct value cannot be performed in this
1232 -- case (or the discriminant check may be optimized away!)
1234 -- Is_Machine_Number (Flag11-Sem)
1235 -- This flag is set in an N_Real_Literal node to indicate that the value
1236 -- is a machine number. This avoids some unnecessary cases of converting
1237 -- real literals to machine numbers.
1239 -- Is_Null_Loop (Flag16-Sem)
1240 -- This flag is set in an N_Loop_Statement node if the corresponding loop
1241 -- can be determined to be null at compile time. This is used to remove
1242 -- the loop entirely at expansion time.
1244 -- Is_Overloaded (Flag5-Sem)
1245 -- A flag present in all expression nodes. Used temporarily during
1246 -- overloading determination. The setting of this flag is not relevant
1247 -- once overloading analysis is complete.
1249 -- Is_Power_Of_2_For_Shift (Flag13-Sem)
1250 -- A flag present only in N_Op_Expon nodes. It is set when the
1251 -- exponentiation is of the form 2 ** N, where the type of N is an
1252 -- unsigned integral subtype whose size does not exceed the size of
1253 -- Standard_Integer (i.e. a type that can be safely converted to
1254 -- Natural), and the exponentiation appears as the right operand of an
1255 -- integer multiplication or an integer division where the dividend is
1256 -- unsigned. It is also required that overflow checking is off for both
1257 -- the exponentiation and the multiply/divide node. If this set of
1258 -- conditions holds, and the flag is set, then the division or
1259 -- multiplication can be (and is) converted to a shift.
1261 -- Is_Protected_Subprogram_Body (Flag7-Sem)
1262 -- A flag set in a Subprogram_Body block to indicate that it is the
1263 -- implementation of a protected subprogram. Such a body needs cleanup
1264 -- handler to make sure that the associated protected object is unlocked
1265 -- when the subprogram completes.
1267 -- Is_Static_Coextension (Flag14-Sem)
1268 -- Present in N_Allocator nodes. Set if the allocator is a coextension
1269 -- of an object allocated on the stack rather than the heap.
1271 -- Is_Static_Expression (Flag6-Sem)
1272 -- Indicates that an expression is a static expression (RM 4.9). See spec
1273 -- of package Sem_Eval for full details on the use of this flag.
1275 -- Is_Subprogram_Descriptor (Flag16-Sem)
1276 -- Present in N_Object_Declaration, and set only for the object
1277 -- declaration generated for a subprogram descriptor in fast exception
1278 -- mode. See Exp_Ch11 for details of use.
1280 -- Is_Task_Allocation_Block (Flag6-Sem)
1281 -- A flag set in a Block_Statement node to indicate that it is the
1282 -- expansion of a task allocator, or the allocator of an object
1283 -- containing tasks. Such a block requires a cleanup handler to call
1284 -- Expunge_Unactivated_Tasks to complete any tasks that have been
1285 -- allocated but not activated when the allocator completes abnormally.
1287 -- Is_Task_Master (Flag5-Sem)
1288 -- A flag set in a Subprogram_Body, Block_Statement or Task_Body node to
1289 -- indicate that the construct is a task master (i.e. has declared tasks
1290 -- or declares an access to a task type).
1292 -- Itype (Node1-Sem)
1293 -- Used in N_Itype_Reference node to reference an itype for which it is
1294 -- important to ensure that it is defined. See description of this node
1295 -- for further details.
1297 -- Kill_Range_Check (Flag11-Sem)
1298 -- Used in an N_Unchecked_Type_Conversion node to indicate that the
1299 -- result should not be subjected to range checks. This is used for the
1300 -- implementation of Normalize_Scalars.
1302 -- Label_Construct (Node2-Sem)
1303 -- Used in an N_Implicit_Label_Declaration node. Refers to an N_Label,
1304 -- N_Block_Statement or N_Loop_Statement node to which the label
1305 -- declaration applies. This is not currently used in the compiler
1306 -- itself, but it is useful in the implementation of ASIS queries.
1307 -- This field is left empty for the special labels generated as part
1308 -- of expanding raise statements with a local exception handler.
1310 -- Library_Unit (Node4-Sem)
1311 -- In a stub node, Library_Unit points to the compilation unit node of
1312 -- the corresponding subunit.
1314 -- In a with clause node, Library_Unit points to the spec of the with'ed
1317 -- In a compilation unit node, the usage depends on the unit type:
1319 -- For a library unit body, Library_Unit points to the compilation unit
1320 -- node of the corresponding spec, unless it's a subprogram body with
1321 -- Acts_As_Spec set, in which case it points to itself.
1323 -- For a spec, Library_Unit points to the compilation unit node of the
1324 -- corresponding body, if present. The body will be present if the spec
1325 -- is or contains generics that we needed to instantiate. Similarly, the
1326 -- body will be present if we needed it for inlining purposes. Thus, if
1327 -- we have a spec/body pair, both of which are present, they point to
1328 -- each other via Library_Unit.
1330 -- For a subunit, Library_Unit points to the compilation unit node of
1333 -- Note that this field is not used to hold the parent pointer for child
1334 -- unit (which might in any case need to use it for some other purpose as
1335 -- described above). Instead for a child unit, implicit with's are
1336 -- generated for all parents.
1338 -- Local_Raise_Statements (Elist1)
1339 -- This field is present in exception handler nodes. It is set to
1340 -- No_Elist in the normal case. If there is at least one raise statement
1341 -- which can potentially be handled as a local raise, then this field
1342 -- points to a list of raise nodes, which are calls to a routine to raise
1343 -- an exception. These are raise nodes which can be optimized into gotos
1344 -- if the handler turns out to meet the conditions which permit this
1345 -- transformation. Note that this does NOT include instances of the
1346 -- N_Raise_xxx_Error nodes since the transformation of these nodes is
1347 -- handled by the back end (using the N_Push/N_Pop mechanism).
1349 -- Loop_Actions (List2-Sem)
1350 -- A list present in Component_Association nodes in array aggregates.
1351 -- Used to collect actions that must be executed within the loop because
1352 -- they may need to be evaluated anew each time through.
1354 -- Limited_View_Installed (Flag18-Sem)
1355 -- Present in With_Clauses and in package specifications. If set on
1356 -- with_clause, it indicates that this clause has created the current
1357 -- limited view of the designated package. On a package specification, it
1358 -- indicates that the limited view has already been created because the
1359 -- package is mentioned in a limited_with_clause in the closure of the
1360 -- unit being compiled.
1362 -- Local_Raise_Not_OK (Flag7-Sem)
1363 -- Present in N_Exception_Handler nodes. Set if the handler contains
1364 -- a construct (reraise statement, or call to subprogram in package
1365 -- GNAT.Current_Exception) that makes the handler unsuitable as a target
1366 -- for a local raise (one that could otherwise be converted to a goto).
1368 -- Must_Be_Byte_Aligned (Flag14-Sem)
1369 -- This flag is present in N_Attribute_Reference nodes. It can be set
1370 -- only for the Address and Unrestricted_Access attributes. If set it
1371 -- means that the object for which the address/access is given must be on
1372 -- a byte (more accurately a storage unit) boundary. If necessary, a copy
1373 -- of the object is to be made before taking the address (this copy is in
1374 -- the current scope on the stack frame). This is used for certain cases
1375 -- of code generated by the expander that passes parameters by address.
1377 -- The reason the copy is not made by the front end is that the back end
1378 -- has more information about type layout and may be able to (but is not
1379 -- guaranteed to) prevent making unnecessary copies.
1381 -- Must_Not_Freeze (Flag8-Sem)
1382 -- A flag present in all expression nodes. Normally expressions cause
1383 -- freezing as described in the RM. If this flag is set, then this is
1384 -- inhibited. This is used by the analyzer and expander to label nodes
1385 -- that are created by semantic analysis or expansion and which must not
1386 -- cause freezing even though they normally would. This flag is also
1387 -- present in an N_Subtype_Indication node, since we also use these in
1388 -- calls to Freeze_Expression.
1390 -- Next_Entity (Node2-Sem)
1391 -- Present in defining identifiers, defining character literals and
1392 -- defining operator symbols (i.e. in all entities). The entities of a
1393 -- scope are chained, and this field is used as the forward pointer for
1394 -- this list. See Einfo for further details.
1396 -- Next_Implicit_With (Node3-Sem)
1397 -- Present in N_With_Clause. Part of a chain of with_clauses generated
1398 -- in rtsfind to indicate implicit dependencies on predefined units. Used
1399 -- to prevent multiple with_clauses for the same unit in a given context.
1400 -- A postorder traversal of the tree whose nodes are units and whose
1401 -- links are with_clauses defines the order in which Inspector must
1402 -- examine a compiled unit and its full context. This ordering ensures
1403 -- that any subprogram call is examined after the subprogram declartion
1406 -- Next_Named_Actual (Node4-Sem)
1407 -- Present in parameter association node. Set during semantic analysis to
1408 -- point to the next named parameter, where parameters are ordered by
1409 -- declaration order (as opposed to the actual order in the call, which
1410 -- may be different due to named associations). Not that this field
1411 -- points to the explicit actual parameter itself, not to the
1412 -- N_Parameter_Association node (its parent).
1414 -- Next_Pragma (Node1-Sem)
1415 -- Present in N_Pragma nodes. Used to create a linked list of pragma
1416 -- nodes. Currently used for two purposes:
1418 -- Create a list of linked Check_Policy pragmas. The head of this list
1419 -- is stored in Opt.Check_Policy_List (which has further details).
1421 -- Used by processing for Pre/Postcondition pragmas to store a list of
1422 -- pragmas associated with the spec of a subprogram (see Sem_Prag for
1425 -- Next_Rep_Item (Node5-Sem)
1426 -- Present in pragma nodes and attribute definition nodes. Used to link
1427 -- representation items that apply to an entity. See description of
1428 -- First_Rep_Item field in Einfo for full details.
1430 -- Next_Use_Clause (Node3-Sem)
1431 -- While use clauses are active during semantic processing, they are
1432 -- chained from the scope stack entry, using Next_Use_Clause as a link
1433 -- pointer, with Empty marking the end of the list. The head pointer is
1434 -- in the scope stack entry (First_Use_Clause). At the end of semantic
1435 -- processing (i.e. when Gigi sees the tree, the contents of this field
1436 -- is undefined and should not be read).
1438 -- No_Ctrl_Actions (Flag7-Sem)
1439 -- Present in N_Assignment_Statement to indicate that no finalize nor
1440 -- adjust should take place on this assignment even though the rhs is
1441 -- controlled. This is used in init procs and aggregate expansions where
1442 -- the generated assignments are more initialisations than real
1445 -- No_Elaboration_Check (Flag14-Sem)
1446 -- Present in N_Function_Call and N_Procedure_Call_Statement. Indicates
1447 -- that no elaboration check is needed on the call, because it appears in
1448 -- the context of a local Suppress pragma. This is used on calls within
1449 -- task bodies, where the actual elaboration checks are applied after
1450 -- analysis, when the local scope stack is not present.
1452 -- No_Entities_Ref_In_Spec (Flag8-Sem)
1453 -- Present in N_With_Clause nodes. Set if the with clause is on the
1454 -- package or subprogram spec where the main unit is the corresponding
1455 -- body, and no entities of the with'ed unit are referenced by the spec
1456 -- (an entity may still be referenced in the body, so this flag is used
1457 -- to generate the proper message (see Sem_Util.Check_Unused_Withs for
1460 -- No_Initialization (Flag13-Sem)
1461 -- Present in N_Object_Declaration and N_Allocator to indicate that the
1462 -- object must not be initialized (by Initialize or call to an init
1463 -- proc). This is needed for controlled aggregates. When the Object
1464 -- declaration has an expression, this flag means that this expression
1465 -- should not be taken into account (needed for in place initialization
1466 -- with aggregates).
1468 -- No_Truncation (Flag17-Sem)
1469 -- Present in N_Unchecked_Type_Conversion node. This flag has an effect
1470 -- only if the RM_Size of the source is greater than the RM_Size of the
1471 -- target for scalar operands. Normally in such a case we truncate some
1472 -- higher order bits of the source, and then sign/zero extend the result
1473 -- to form the output value. But if this flag is set, then we do not do
1474 -- any truncation, so for example, if an 8 bit input is converted to 5
1475 -- bit result which is in fact stored in 8 bits, then the high order
1476 -- three bits of the target result will be copied from the source. This
1477 -- is used for properly setting out of range values for use by pragmas
1478 -- Initialize_Scalars and Normalize_Scalars.
1480 -- Original_Discriminant (Node2-Sem)
1481 -- Present in identifiers. Used in references to discriminants that
1482 -- appear in generic units. Because the names of the discriminants may be
1483 -- different in an instance, we use this field to recover the position of
1484 -- the discriminant in the original type, and replace it with the
1485 -- discriminant at the same position in the instantiated type.
1487 -- Original_Entity (Node2-Sem)
1488 -- Present in numeric literals. Used to denote the named number that has
1489 -- been constant-folded into the given literal. If literal is from
1490 -- source, or the result of some other constant-folding operation, then
1491 -- Original_Entity is empty. This field is needed to handle properly
1492 -- named numbers in generic units, where the Associated_Node field
1493 -- interferes with the Entity field, making it impossible to preserve the
1494 -- original entity at the point of instantiation (ASIS problem).
1496 -- Others_Discrete_Choices (List1-Sem)
1497 -- When a case statement or variant is analyzed, the semantic checks
1498 -- determine the actual list of choices that correspond to an others
1499 -- choice. This list is materialized for later use by the expander and
1500 -- the Others_Discrete_Choices field of an N_Others_Choice node points to
1501 -- this materialized list of choices, which is in standard format for a
1502 -- list of discrete choices, except that of course it cannot contain an
1503 -- N_Others_Choice entry.
1505 -- Parameter_List_Truncated (Flag17-Sem)
1506 -- Present in N_Function_Call and N_Procedure_Call_Statement nodes. Set
1507 -- (for OpenVMS ports of GNAT only) if the parameter list is truncated as
1508 -- a result of a First_Optional_Parameter specification in an
1509 -- Import_Function, Import_Procedure, or Import_Valued_Procedure pragma.
1510 -- The truncation is done by the expander by removing trailing parameters
1511 -- from the argument list, in accordance with the set of rules allowing
1512 -- such parameter removal. In particular, parameters can be removed
1513 -- working from the end of the parameter list backwards up to and
1514 -- including the entry designated by First_Optional_Parameter in the
1515 -- Import pragma. Parameters can be removed if they are implicit and the
1516 -- default value is a known-at-compile-time value, including the use of
1517 -- the Null_Parameter attribute, or if explicit parameter values are
1518 -- present that match the corresponding defaults.
1520 -- Parent_Spec (Node4-Sem)
1521 -- For a library unit that is a child unit spec (package or subprogram
1522 -- declaration, generic declaration or instantiation, or library level
1523 -- rename, this field points to the compilation unit node for the parent
1524 -- package specification. This field is Empty for library bodies (the
1525 -- parent spec in this case can be found from the corresponding spec).
1527 -- PPC_Enabled (Flag5-Sem)
1528 -- Present in N_Pragma nodes. This flag is relevant only for precondition
1529 -- and postcondition nodes. It is true if the check corresponding to the
1530 -- pragma type is enabled at the point where the pragma appears.
1532 -- Present_Expr (Uint3-Sem)
1533 -- Present in an N_Variant node. This has a meaningful value only after
1534 -- Gigi has back annotated the tree with representation information. At
1535 -- this point, it contains a reference to a gcc expression that depends
1536 -- on the values of one or more discriminants. Give a set of discriminant
1537 -- values, this expression evaluates to False (zero) if variant is not
1538 -- present, and True (non-zero) if it is present. See unit Repinfo for
1539 -- further details on gigi back annotation. This field is used during
1540 -- ASIS processing (data decomposition annex) to determine if a field is
1543 -- Print_In_Hex (Flag13-Sem)
1544 -- Set on an N_Integer_Literal node to indicate that the value should be
1545 -- printed in hexadecimal in the sprint listing. Has no effect on
1546 -- legality or semantics of program, only on the displayed output. This
1547 -- is used to clarify output from the packed array cases.
1549 -- Procedure_To_Call (Node2-Sem)
1550 -- Present in N_Allocator, N_Free_Statement, N_Simple_Return_Statement,
1551 -- and N_Extended_Return_Statement nodes. References the entity for the
1552 -- declaration of the procedure to be called to accomplish the required
1553 -- operation (i.e. for the Allocate procedure in the case of N_Allocator
1554 -- and N_Simple_Return_Statement and N_Extended_Return_Statement (for
1555 -- allocating the return value), and for the Deallocate procedure in the
1556 -- case of N_Free_Statement.
1558 -- Raises_Constraint_Error (Flag7-Sem)
1559 -- Set on an expression whose evaluation will definitely fail constraint
1560 -- error check. In the case of static expressions, this flag must be set
1561 -- accurately (and if it is set, the expression is typically illegal
1562 -- unless it appears as a non-elaborated branch of a short-circuit form).
1563 -- For a non-static expression, this flag may be set whenever an
1564 -- expression (e.g. an aggregate) is known to raise constraint error. If
1565 -- set, the expression definitely will raise CE if elaborated at runtime.
1566 -- If not set, the expression may or may not raise CE. In other words, on
1567 -- static expressions, the flag is set accurately, on non-static
1568 -- expressions it is set conservatively.
1570 -- Redundant_Use (Flag13-Sem)
1571 -- Present in nodes that can appear as an operand in a use clause or use
1572 -- type clause (identifiers, expanded names, attribute references). Set
1573 -- to indicate that a use is redundant (and therefore need not be undone
1576 -- Renaming_Exception (Node2-Sem)
1577 -- Present in N_Exception_Declaration node. Used to point back to the
1578 -- exception renaming for an exception declared within a subprogram.
1579 -- What happens is that an exception declared in a subprogram is moved
1580 -- to the library level with a unique name, and the original exception
1581 -- becomes a renaming. This link from the library level exception to the
1582 -- renaming declaration allows registering of the proper exception name.
1584 -- Return_Statement_Entity (Node5-Sem)
1585 -- Present in N_Simple_Return_Statement and N_Extended_Return_Statement.
1586 -- Points to an E_Return_Statement representing the return statement.
1588 -- Return_Object_Declarations (List3)
1589 -- Present in N_Extended_Return_Statement.
1590 -- Points to a list initially containing a single
1591 -- N_Object_Declaration representing the return object.
1592 -- We use a list (instead of just a pointer to the object decl)
1593 -- because Analyze wants to insert extra actions on this list.
1595 -- Rounded_Result (Flag18-Sem)
1596 -- Present in N_Type_Conversion, N_Op_Divide and N_Op_Multiply nodes.
1597 -- Used in the fixed-point cases to indicate that the result must be
1598 -- rounded as a result of the use of the 'Round attribute. Also used for
1599 -- integer N_Op_Divide nodes to indicate that the result should be
1600 -- rounded to the nearest integer (breaking ties away from zero), rather
1601 -- than truncated towards zero as usual. These rounded integer operations
1602 -- are the result of expansion of rounded fixed-point divide, conversion
1603 -- and multiplication operations.
1605 -- SCIL_Entity (Node4-Sem)
1606 -- Present in SCIL nodes. Used to reference the tagged type associated
1607 -- with the SCIL node.
1609 -- SCIL_Related_Node (Node1-Sem)
1610 -- Present in SCIL nodes. Used to reference a tree node that requires
1611 -- special processing in the CodePeer backend.
1613 -- SCIL_Controlling_Tag (Node5-Sem)
1614 -- Present in N_SCIL_Dispatching_Call nodes. Used to reference the
1615 -- controlling tag of a dispatching call.
1617 -- SCIL_Tag_Value (Node5-Sem)
1618 -- Present in N_SCIL_Membership_Test nodes. Used to reference the tag
1619 -- value that is being tested.
1621 -- SCIL_Target_Prim (Node2-Sem)
1622 -- Present in N_SCIL_Dispatching_Call nodes. Used to reference the tagged
1623 -- type primitive associated with the SCIL node.
1625 -- Scope (Node3-Sem)
1626 -- Present in defining identifiers, defining character literals and
1627 -- defining operator symbols (i.e. in all entities). The entities of a
1628 -- scope all use this field to reference the corresponding scope entity.
1629 -- See Einfo for further details.
1631 -- Shift_Count_OK (Flag4-Sem)
1632 -- A flag present in shift nodes to indicate that the shift count is
1633 -- known to be in range, i.e. is in the range from zero to word length
1634 -- minus one. If this flag is not set, then the shift count may be
1635 -- outside this range, i.e. larger than the word length, and the code
1636 -- must ensure that such shift counts give the appropriate result.
1638 -- Source_Type (Node1-Sem)
1639 -- Used in an N_Validate_Unchecked_Conversion node to point to the
1640 -- source type entity for the unchecked conversion instantiation
1641 -- which gigi must do size validation for.
1643 -- Static_Processing_OK (Flag4-Sem)
1644 -- Present in N_Aggregate nodes. When the Compile_Time_Known_Aggregate
1645 -- flag is set, the full value of the aggregate can be determined at
1646 -- compile time and the aggregate can be passed as is to the back-end.
1647 -- In this event it is irrelevant whether this flag is set or not.
1648 -- However, if the flag Compile_Time_Known_Aggregate is not set but
1649 -- Static_Processing_OK is set, the aggregate can (but need not) be
1650 -- converted into a compile time known aggregate by the expander. See
1651 -- Sem_Aggr for the specific conditions under which an aggregate has its
1652 -- Static_Processing_OK flag set.
1654 -- Storage_Pool (Node1-Sem)
1655 -- Present in N_Allocator, N_Free_Statement, N_Simple_Return_Statement,
1656 -- and N_Extended_Return_Statement nodes. References the entity for the
1657 -- storage pool to be used for the allocate or free call or for the
1658 -- allocation of the returned value from function. Empty indicates that
1659 -- the global default pool is to be used. Note that in the case
1660 -- of a return statement, this field is set only if the function returns
1661 -- value of a type whose size is not known at compile time on the
1664 -- Suppress_Loop_Warnings (Flag17-Sem)
1665 -- Used in N_Loop_Statement node to indicate that warnings within the
1666 -- body of the loop should be suppressed. This is set when the range
1667 -- of a FOR loop is known to be null, or is probably null (loop would
1668 -- only execute if invalid values are present).
1670 -- Target_Type (Node2-Sem)
1671 -- Used in an N_Validate_Unchecked_Conversion node to point to the target
1672 -- type entity for the unchecked conversion instantiation which gigi must
1673 -- do size validation for.
1675 -- Then_Actions (List3-Sem)
1676 -- This field is present in conditional expression nodes. During code
1677 -- expansion we use the Insert_Actions procedure (in Exp_Util) to insert
1678 -- actions at an appropriate place in the tree to get elaborated at the
1679 -- right time. For conditional expressions, we have to be sure that the
1680 -- actions for the Then branch are only elaborated if the condition is
1681 -- True. The Then_Actions field is used as a temporary parking place for
1682 -- these actions. The final tree is always rewritten to eliminate the
1683 -- need for this field, so in the tree passed to Gigi, this field is
1684 -- always set to No_List.
1686 -- Treat_Fixed_As_Integer (Flag14-Sem)
1687 -- This flag appears in operator nodes for divide, multiply, mod and rem
1688 -- on fixed-point operands. It indicates that the operands are to be
1689 -- treated as integer values, ignoring small values. This flag is only
1690 -- set as a result of expansion of fixed-point operations. Typically a
1691 -- fixed-point multiplication in the source generates subsidiary
1692 -- multiplication and division operations that work with the underlying
1693 -- integer values and have this flag set. Note that this flag is not
1694 -- needed on other arithmetic operations (add, neg, subtract etc.) since
1695 -- in these cases it is always the case that fixed is treated as integer.
1696 -- The Etype field MUST be set if this flag is set. The analyzer knows to
1697 -- leave such nodes alone, and whoever makes them must set the correct
1700 -- TSS_Elist (Elist3-Sem)
1701 -- Present in N_Freeze_Entity nodes. Holds an element list containing
1702 -- entries for each TSS (type support subprogram) associated with the
1703 -- frozen type. The elements of the list are the entities for the
1704 -- subprograms (see package Exp_TSS for further details). Set to No_Elist
1705 -- if there are no type support subprograms for the type or if the freeze
1706 -- node is not for a type.
1708 -- Unreferenced_In_Spec (Flag7-Sem)
1709 -- Present in N_With_Clause nodes. Set if the with clause is on the
1710 -- package or subprogram spec where the main unit is the corresponding
1711 -- body, and is not referenced by the spec (it may still be referenced by
1712 -- the body, so this flag is used to generate the proper message (see
1713 -- Sem_Util.Check_Unused_Withs for details)
1715 -- Was_Originally_Stub (Flag13-Sem)
1716 -- This flag is set in the node for a proper body that replaces stub.
1717 -- During the analysis procedure, stubs in some situations get rewritten
1718 -- by the corresponding bodies, and we set this flag to remember that
1719 -- this happened. Note that it is not good enough to rely on the use of
1720 -- Original_Node here because of the case of nested instantiations where
1721 -- the substituted node can be copied.
1723 -- Zero_Cost_Handling (Flag5-Sem)
1724 -- This flag is set in all handled sequence of statement and exception
1725 -- handler nodes if exceptions are to be handled using the zero-cost
1726 -- mechanism (see Ada.Exceptions and System.Exceptions in files
1727 -- a-except.ads/adb and s-except.ads for full details). What gigi needs
1728 -- to do for such a handler is simply to put the code in the handler
1729 -- somewhere. The front end has generated all necessary labels.
1731 --------------------------------------------------
1732 -- Note on Use of End_Label and End_Span Fields --
1733 --------------------------------------------------
1735 -- Several constructs have end lines:
1737 -- Loop Statement end loop [loop_IDENTIFIER];
1738 -- Package Specification end [[PARENT_UNIT_NAME .] IDENTIFIER]
1739 -- Task Definition end [task_IDENTIFIER]
1740 -- Protected Definition end [protected_IDENTIFIER]
1741 -- Protected Body end [protected_IDENTIFIER]
1743 -- Block Statement end [block_IDENTIFIER];
1744 -- Subprogram Body end [DESIGNATOR];
1745 -- Package Body end [[PARENT_UNIT_NAME .] IDENTIFIER];
1746 -- Task Body end [task_IDENTIFIER];
1747 -- Accept Statement end [entry_IDENTIFIER]];
1748 -- Entry Body end [entry_IDENTIFIER];
1750 -- If Statement end if;
1751 -- Case Statement end case;
1753 -- Record Definition end record;
1754 -- Enumeration Definition );
1756 -- The End_Label and End_Span fields are used to mark the locations of
1757 -- these lines, and also keep track of the label in the case where a label
1760 -- For the first group above, the End_Label field of the corresponding node
1761 -- is used to point to the label identifier. In the case where there is no
1762 -- label in the source, the parser supplies a dummy identifier (with
1763 -- Comes_From_Source set to False), and the Sloc of this dummy identifier
1764 -- marks the location of the token following the END token.
1766 -- For the second group, the use of End_Label is similar, but the End_Label
1767 -- is found in the N_Handled_Sequence_Of_Statements node. This is done
1768 -- simply because in some cases there is no room in the parent node.
1770 -- For the third group, there is never any label, and instead of using
1771 -- End_Label, we use the End_Span field which gives the location of the
1772 -- token following END, relative to the starting Sloc of the construct,
1773 -- i.e. add Sloc (Node) + End_Span (Node) to get the Sloc of the IF or CASE
1774 -- following the End_Label.
1776 -- The record definition case is handled specially, we treat it as though
1777 -- it required an optional label which is never present, and so the parser
1778 -- always builds a dummy identifier with Comes From Source set False. The
1779 -- reason we do this, rather than using End_Span in this case, is that we
1780 -- want to generate a cross-ref entry for the end of a record, since it
1781 -- represents a scope for name declaration purposes.
1783 -- The enumeration definition case is handled in an exactly similar manner,
1784 -- building a dummy identifier to get a cross-reference.
1786 -- Note: the reason we store the difference as a Uint, instead of storing
1787 -- the Source_Ptr value directly, is that Source_Ptr values cannot be
1788 -- distinguished from other types of values, and we count on all general
1789 -- use fields being self describing. To make things easier for clients,
1790 -- note that we provide function End_Location, and procedure
1791 -- Set_End_Location to allow access to the logical value (which is the
1792 -- Source_Ptr value for the end token).
1794 ---------------------
1795 -- Syntactic Nodes --
1796 ---------------------
1798 ---------------------
1799 -- 2.3 Identifier --
1800 ---------------------
1802 -- IDENTIFIER ::= IDENTIFIER_LETTER {[UNDERLINE] LETTER_OR_DIGIT}
1803 -- LETTER_OR_DIGIT ::= IDENTIFIER_LETTER | DIGIT
1805 -- An IDENTIFIER shall not be a reserved word
1807 -- In the Ada grammar identifiers are the bottom level tokens which have
1808 -- very few semantics. Actual program identifiers are direct names. If
1809 -- we were being 100% honest with the grammar, then we would have a node
1810 -- called N_Direct_Name which would point to an identifier. However,
1811 -- that's too many extra nodes, so we just use the N_Identifier node
1812 -- directly as a direct name, and it contains the expression fields and
1813 -- Entity field that correspond to its use as a direct name. In those
1814 -- few cases where identifiers appear in contexts where they are not
1815 -- direct names (pragmas, pragma argument associations, attribute
1816 -- references and attribute definition clauses), the Chars field of the
1817 -- node contains the Name_Id for the identifier name.
1819 -- Note: in GNAT, a reserved word can be treated as an identifier in two
1820 -- cases. First, an incorrect use of a reserved word as an identifier is
1821 -- diagnosed and then treated as a normal identifier. Second, an
1822 -- attribute designator of the form of a reserved word (access, delta,
1823 -- digits, range) is treated as an identifier.
1825 -- Note: The set of letters that is permitted in an identifier depends
1826 -- on the character set in use. See package Csets for full details.
1829 -- Sloc points to identifier
1830 -- Chars (Name1) contains the Name_Id for the identifier
1831 -- Entity (Node4-Sem)
1832 -- Associated_Node (Node4-Sem)
1833 -- Original_Discriminant (Node2-Sem)
1834 -- Redundant_Use (Flag13-Sem)
1835 -- Has_Private_View (Flag11-Sem) (set in generic units)
1836 -- plus fields for expression
1838 --------------------------
1839 -- 2.4 Numeric Literal --
1840 --------------------------
1842 -- NUMERIC_LITERAL ::= DECIMAL_LITERAL | BASED_LITERAL
1844 ----------------------------
1845 -- 2.4.1 Decimal Literal --
1846 ----------------------------
1848 -- DECIMAL_LITERAL ::= NUMERAL [.NUMERAL] [EXPONENT]
1850 -- NUMERAL ::= DIGIT {[UNDERLINE] DIGIT}
1852 -- EXPONENT ::= E [+] NUMERAL | E - NUMERAL
1854 -- Decimal literals appear in the tree as either integer literal nodes
1855 -- or real literal nodes, depending on whether a period is present.
1857 -- Note: literal nodes appear as a result of direct use of literals
1858 -- in the source program, and also as the result of evaluating
1859 -- expressions at compile time. In the latter case, it is possible
1860 -- to construct real literals that have no syntactic representation
1861 -- using the standard literal format. Such literals are listed by
1862 -- Sprint using the notation [numerator / denominator].
1864 -- Note: the value of an integer literal node created by the front end
1865 -- is never outside the range of values of the base type. However, it
1866 -- can be the case that the value is outside the range of the
1867 -- particular subtype. This happens in the case of integer overflows
1868 -- with checks suppressed.
1870 -- N_Integer_Literal
1871 -- Sloc points to literal
1872 -- Original_Entity (Node2-Sem) If not Empty, holds Named_Number that
1873 -- has been constant-folded into its literal value.
1874 -- Intval (Uint3) contains integer value of literal
1875 -- plus fields for expression
1876 -- Print_In_Hex (Flag13-Sem)
1879 -- Sloc points to literal
1880 -- Original_Entity (Node2-Sem) If not Empty, holds Named_Number that
1881 -- has been constant-folded into its literal value.
1882 -- Realval (Ureal3) contains real value of literal
1883 -- Corresponding_Integer_Value (Uint4-Sem)
1884 -- Is_Machine_Number (Flag11-Sem)
1885 -- plus fields for expression
1887 --------------------------
1888 -- 2.4.2 Based Literal --
1889 --------------------------
1891 -- BASED_LITERAL ::=
1892 -- BASE # BASED_NUMERAL [.BASED_NUMERAL] # [EXPONENT]
1896 -- BASED_NUMERAL ::=
1897 -- EXTENDED_DIGIT {[UNDERLINE] EXTENDED_DIGIT}
1899 -- EXTENDED_DIGIT ::= DIGIT | A | B | C | D | E | F
1901 -- Based literals appear in the tree as either integer literal nodes
1902 -- or real literal nodes, depending on whether a period is present.
1904 ----------------------------
1905 -- 2.5 Character Literal --
1906 ----------------------------
1908 -- CHARACTER_LITERAL ::= ' GRAPHIC_CHARACTER '
1910 -- N_Character_Literal
1911 -- Sloc points to literal
1912 -- Chars (Name1) contains the Name_Id for the identifier
1913 -- Char_Literal_Value (Uint2) contains the literal value
1914 -- Entity (Node4-Sem)
1915 -- Associated_Node (Node4-Sem)
1916 -- Has_Private_View (Flag11-Sem) set in generic units.
1917 -- plus fields for expression
1919 -- Note: the Entity field will be missing (set to Empty) for character
1920 -- literals whose type is Standard.Wide_Character or Standard.Character
1921 -- or a type derived from one of these two. In this case the character
1922 -- literal stands for its own coding. The reason we take this irregular
1923 -- short cut is to avoid the need to build lots of junk defining
1924 -- character literal nodes.
1926 -------------------------
1927 -- 2.6 String Literal --
1928 -------------------------
1930 -- STRING LITERAL ::= "{STRING_ELEMENT}"
1932 -- A STRING_ELEMENT is either a pair of quotation marks ("), or a
1933 -- single GRAPHIC_CHARACTER other than a quotation mark.
1935 -- Is_Folded_In_Parser is True if the parser created this literal by
1936 -- folding a sequence of "&" operators. For example, if the source code
1937 -- says "aaa" & "bbb" & "ccc", and this produces "aaabbbccc", the flag
1938 -- is set. This flag is needed because the parser doesn't know about
1939 -- visibility, so the folded result might be wrong, and semantic
1940 -- analysis needs to check for that.
1943 -- Sloc points to literal
1944 -- Strval (Str3) contains Id of string value
1945 -- Has_Wide_Character (Flag11-Sem)
1946 -- Has_Wide_Wide_Character (Flag13-Sem)
1947 -- Is_Folded_In_Parser (Flag4)
1948 -- plus fields for expression
1954 -- A COMMENT starts with two adjacent hyphens and extends up to the
1955 -- end of the line. A COMMENT may appear on any line of a program.
1957 -- Comments are skipped by the scanner and do not appear in the tree.
1958 -- It is possible to reconstruct the position of comments with respect
1959 -- to the elements of the tree by using the source position (Sloc)
1960 -- pointers that appear in every tree node.
1966 -- PRAGMA ::= pragma IDENTIFIER
1967 -- [(PRAGMA_ARGUMENT_ASSOCIATION {, PRAGMA_ARGUMENT_ASSOCIATION})];
1969 -- Note that a pragma may appear in the tree anywhere a declaration
1970 -- or a statement may appear, as well as in some other situations
1971 -- which are explicitly documented.
1974 -- Sloc points to pragma identifier
1975 -- Next_Pragma (Node1-Sem)
1976 -- Pragma_Argument_Associations (List2) (set to No_List if none)
1977 -- Debug_Statement (Node3) (set to Empty if not Debug, Assert)
1978 -- Pragma_Identifier (Node4)
1979 -- Next_Rep_Item (Node5-Sem)
1980 -- PPC_Enabled (Flag5-Sem)
1982 -- Note: we should have a section on what pragmas are passed on to
1983 -- the back end to be processed. This section should note that pragma
1984 -- Psect_Object is always converted to Common_Object, but there are
1985 -- undoubtedly many other similar notes required ???
1987 -- Note: a utility function Pragma_Name may be applied to pragma nodes
1988 -- to conveniently obtain the Chars field of the Pragma_Identifier.
1990 --------------------------------------
1991 -- 2.8 Pragma Argument Association --
1992 --------------------------------------
1994 -- PRAGMA_ARGUMENT_ASSOCIATION ::=
1995 -- [pragma_argument_IDENTIFIER =>] NAME
1996 -- | [pragma_argument_IDENTIFIER =>] EXPRESSION
1998 -- N_Pragma_Argument_Association
1999 -- Sloc points to first token in association
2000 -- Chars (Name1) (set to No_Name if no pragma argument identifier)
2001 -- Expression (Node3)
2003 ------------------------
2004 -- 2.9 Reserved Word --
2005 ------------------------
2007 -- Reserved words are parsed by the scanner, and returned as the
2008 -- corresponding token types (e.g. PACKAGE is returned as Tok_Package)
2010 ----------------------------
2011 -- 3.1 Basic Declaration --
2012 ----------------------------
2014 -- BASIC_DECLARATION ::=
2015 -- TYPE_DECLARATION | SUBTYPE_DECLARATION
2016 -- | OBJECT_DECLARATION | NUMBER_DECLARATION
2017 -- | SUBPROGRAM_DECLARATION | ABSTRACT_SUBPROGRAM_DECLARATION
2018 -- | PACKAGE_DECLARATION | RENAMING_DECLARATION
2019 -- | EXCEPTION_DECLARATION | GENERIC_DECLARATION
2020 -- | GENERIC_INSTANTIATION
2022 -- Basic declaration also includes IMPLICIT_LABEL_DECLARATION
2023 -- see further description in section on semantic nodes.
2025 -- Also, in the tree that is constructed, a pragma may appear
2026 -- anywhere that a declaration may appear.
2028 ------------------------------
2029 -- 3.1 Defining Identifier --
2030 ------------------------------
2032 -- DEFINING_IDENTIFIER ::= IDENTIFIER
2034 -- A defining identifier is an entity, which has additional fields
2035 -- depending on the setting of the Ekind field. These additional
2036 -- fields are defined (and access subprograms declared) in package
2039 -- Note: N_Defining_Identifier is an extended node whose fields are
2040 -- deliberate layed out to match the layout of fields in an ordinary
2041 -- N_Identifier node allowing for easy alteration of an identifier
2042 -- node into a defining identifier node. For details, see procedure
2043 -- Sinfo.CN.Change_Identifier_To_Defining_Identifier.
2045 -- N_Defining_Identifier
2046 -- Sloc points to identifier
2047 -- Chars (Name1) contains the Name_Id for the identifier
2048 -- Next_Entity (Node2-Sem)
2049 -- Scope (Node3-Sem)
2050 -- Etype (Node5-Sem)
2052 -----------------------------
2053 -- 3.2.1 Type Declaration --
2054 -----------------------------
2056 -- TYPE_DECLARATION ::=
2057 -- FULL_TYPE_DECLARATION
2058 -- | INCOMPLETE_TYPE_DECLARATION
2059 -- | PRIVATE_TYPE_DECLARATION
2060 -- | PRIVATE_EXTENSION_DECLARATION
2062 ----------------------------------
2063 -- 3.2.1 Full Type Declaration --
2064 ----------------------------------
2066 -- FULL_TYPE_DECLARATION ::=
2067 -- type DEFINING_IDENTIFIER [KNOWN_DISCRIMINANT_PART]
2068 -- is TYPE_DEFINITION;
2069 -- | TASK_TYPE_DECLARATION
2070 -- | PROTECTED_TYPE_DECLARATION
2072 -- The full type declaration node is used only for the first case. The
2073 -- second case (concurrent type declaration), is represented directly
2074 -- by a task type declaration or a protected type declaration.
2076 -- N_Full_Type_Declaration
2077 -- Sloc points to TYPE
2078 -- Defining_Identifier (Node1)
2079 -- Discriminant_Specifications (List4) (set to No_List if none)
2080 -- Type_Definition (Node3)
2081 -- Discr_Check_Funcs_Built (Flag11-Sem)
2083 ----------------------------
2084 -- 3.2.1 Type Definition --
2085 ----------------------------
2087 -- TYPE_DEFINITION ::=
2088 -- ENUMERATION_TYPE_DEFINITION | INTEGER_TYPE_DEFINITION
2089 -- | REAL_TYPE_DEFINITION | ARRAY_TYPE_DEFINITION
2090 -- | RECORD_TYPE_DEFINITION | ACCESS_TYPE_DEFINITION
2091 -- | DERIVED_TYPE_DEFINITION | INTERFACE_TYPE_DEFINITION
2093 --------------------------------
2094 -- 3.2.2 Subtype Declaration --
2095 --------------------------------
2097 -- SUBTYPE_DECLARATION ::=
2098 -- subtype DEFINING_IDENTIFIER is [NULL_EXCLUSION] SUBTYPE_INDICATION;
2100 -- The subtype indication field is set to Empty for subtypes
2101 -- declared in package Standard (Positive, Natural).
2103 -- N_Subtype_Declaration
2104 -- Sloc points to SUBTYPE
2105 -- Defining_Identifier (Node1)
2106 -- Null_Exclusion_Present (Flag11)
2107 -- Subtype_Indication (Node5)
2108 -- Generic_Parent_Type (Node4-Sem) (set for an actual derived type).
2109 -- Exception_Junk (Flag8-Sem)
2111 -------------------------------
2112 -- 3.2.2 Subtype Indication --
2113 -------------------------------
2115 -- SUBTYPE_INDICATION ::= SUBTYPE_MARK [CONSTRAINT]
2117 -- Note: if no constraint is present, the subtype indication appears
2118 -- directly in the tree as a subtype mark. The N_Subtype_Indication
2119 -- node is used only if a constraint is present.
2121 -- Note: [For Ada 2005 (AI-231)]: Because Ada 2005 extends this rule
2122 -- with the null-exclusion part (see AI-231), we had to introduce a new
2123 -- attribute in all the parents of subtype_indication nodes to indicate
2124 -- if the null-exclusion is present.
2126 -- Note: the reason that this node has expression fields is that a
2127 -- subtype indication can appear as an operand of a membership test.
2129 -- N_Subtype_Indication
2130 -- Sloc points to first token of subtype mark
2131 -- Subtype_Mark (Node4)
2132 -- Constraint (Node3)
2133 -- Etype (Node5-Sem)
2134 -- Must_Not_Freeze (Flag8-Sem)
2136 -- Note: Etype is a copy of the Etype field of the Subtype_Mark. The
2137 -- reason for this redundancy is so that in a list of array index types,
2138 -- the Etype can be uniformly accessed to determine the subscript type.
2139 -- This means that no Itype is constructed for the actual subtype that
2140 -- is created by the subtype indication. If such an Itype is required,
2141 -- it is constructed in the context in which the indication appears.
2143 -------------------------
2144 -- 3.2.2 Subtype Mark --
2145 -------------------------
2147 -- SUBTYPE_MARK ::= subtype_NAME
2149 -----------------------
2150 -- 3.2.2 Constraint --
2151 -----------------------
2153 -- CONSTRAINT ::= SCALAR_CONSTRAINT | COMPOSITE_CONSTRAINT
2155 ------------------------------
2156 -- 3.2.2 Scalar Constraint --
2157 ------------------------------
2159 -- SCALAR_CONSTRAINT ::=
2160 -- RANGE_CONSTRAINT | DIGITS_CONSTRAINT | DELTA_CONSTRAINT
2162 ---------------------------------
2163 -- 3.2.2 Composite Constraint --
2164 ---------------------------------
2166 -- COMPOSITE_CONSTRAINT ::=
2167 -- INDEX_CONSTRAINT | DISCRIMINANT_CONSTRAINT
2169 -------------------------------
2170 -- 3.3.1 Object Declaration --
2171 -------------------------------
2173 -- OBJECT_DECLARATION ::=
2174 -- DEFINING_IDENTIFIER_LIST : [aliased] [constant]
2175 -- [NULL_EXCLUSION] SUBTYPE_INDICATION [:= EXPRESSION];
2176 -- | DEFINING_IDENTIFIER_LIST : [aliased] [constant]
2177 -- ACCESS_DEFINITION [:= EXPRESSION];
2178 -- | DEFINING_IDENTIFIER_LIST : [aliased] [constant]
2179 -- ARRAY_TYPE_DEFINITION [:= EXPRESSION];
2180 -- | SINGLE_TASK_DECLARATION
2181 -- | SINGLE_PROTECTED_DECLARATION
2183 -- Note: aliased is not permitted in Ada 83 mode
2185 -- The N_Object_Declaration node is only for the first two cases.
2186 -- Single task declaration is handled by P_Task (9.1)
2187 -- Single protected declaration is handled by P_protected (9.5)
2189 -- Although the syntax allows multiple identifiers in the list, the
2190 -- semantics is as though successive declarations were given with
2191 -- identical type definition and expression components. To simplify
2192 -- semantic processing, the parser represents a multiple declaration
2193 -- case as a sequence of single declarations, using the More_Ids and
2194 -- Prev_Ids flags to preserve the original source form as described
2195 -- in the section on "Handling of Defining Identifier Lists".
2197 -- The flag Has_Init_Expression is set if an initializing expression
2198 -- is present. Normally it is set if and only if Expression contains
2199 -- a non-empty value, but there is an exception to this. When the
2200 -- initializing expression is an aggregate which requires explicit
2201 -- assignments, the Expression field gets set to Empty, but this flag
2202 -- is still set, so we don't forget we had an initializing expression.
2204 -- Note: if a range check is required for the initialization
2205 -- expression then the Do_Range_Check flag is set in the Expression,
2206 -- with the check being done against the type given by the object
2207 -- definition, which is also the Etype of the defining identifier.
2209 -- Note: the contents of the Expression field must be ignored (i.e.
2210 -- treated as though it were Empty) if No_Initialization is set True.
2212 -- Note: the back end places some restrictions on the form of the
2213 -- Expression field. If the object being declared is Atomic, then
2214 -- the Expression may not have the form of an aggregate (since this
2215 -- might cause the back end to generate separate assignments). In this
2216 -- case the front end must generate an extra temporary and initialize
2217 -- this temporary as required (the temporary itself is not atomic).
2219 -- Note: there is not node kind for object definition. Instead, the
2220 -- corresponding field holds a subtype indication, an array type
2221 -- definition, or (Ada 2005, AI-406) an access definition.
2223 -- N_Object_Declaration
2224 -- Sloc points to first identifier
2225 -- Defining_Identifier (Node1)
2226 -- Aliased_Present (Flag4) set if ALIASED appears
2227 -- Constant_Present (Flag17) set if CONSTANT appears
2228 -- Null_Exclusion_Present (Flag11)
2229 -- Object_Definition (Node4) subtype indic./array type def./access def.
2230 -- Expression (Node3) (set to Empty if not present)
2231 -- Handler_List_Entry (Node2-Sem)
2232 -- Corresponding_Generic_Association (Node5-Sem)
2233 -- More_Ids (Flag5) (set to False if no more identifiers in list)
2234 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
2235 -- No_Initialization (Flag13-Sem)
2236 -- Assignment_OK (Flag15-Sem)
2237 -- Exception_Junk (Flag8-Sem)
2238 -- Is_Subprogram_Descriptor (Flag16-Sem)
2239 -- Has_Init_Expression (Flag14)
2241 -------------------------------------
2242 -- 3.3.1 Defining Identifier List --
2243 -------------------------------------
2245 -- DEFINING_IDENTIFIER_LIST ::=
2246 -- DEFINING_IDENTIFIER {, DEFINING_IDENTIFIER}
2248 -------------------------------
2249 -- 3.3.2 Number Declaration --
2250 -------------------------------
2252 -- NUMBER_DECLARATION ::=
2253 -- DEFINING_IDENTIFIER_LIST : constant := static_EXPRESSION;
2255 -- Although the syntax allows multiple identifiers in the list, the
2256 -- semantics is as though successive declarations were given with
2257 -- identical expressions. To simplify semantic processing, the parser
2258 -- represents a multiple declaration case as a sequence of single
2259 -- declarations, using the More_Ids and Prev_Ids flags to preserve
2260 -- the original source form as described in the section on "Handling
2261 -- of Defining Identifier Lists".
2263 -- N_Number_Declaration
2264 -- Sloc points to first identifier
2265 -- Defining_Identifier (Node1)
2266 -- Expression (Node3)
2267 -- More_Ids (Flag5) (set to False if no more identifiers in list)
2268 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
2270 ----------------------------------
2271 -- 3.4 Derived Type Definition --
2272 ----------------------------------
2274 -- DERIVED_TYPE_DEFINITION ::=
2275 -- [abstract] [limited] new [NULL_EXCLUSION] parent_SUBTYPE_INDICATION
2276 -- [[and INTERFACE_LIST] RECORD_EXTENSION_PART]
2278 -- Note: ABSTRACT, LIMITED and record extension part are not permitted
2281 -- Note: a record extension part is required if ABSTRACT is present
2283 -- N_Derived_Type_Definition
2284 -- Sloc points to NEW
2285 -- Abstract_Present (Flag4)
2286 -- Null_Exclusion_Present (Flag11) (set to False if not present)
2287 -- Subtype_Indication (Node5)
2288 -- Record_Extension_Part (Node3) (set to Empty if not present)
2289 -- Limited_Present (Flag17)
2290 -- Task_Present (Flag5) set in task interfaces
2291 -- Protected_Present (Flag6) set in protected interfaces
2292 -- Synchronized_Present (Flag7) set in interfaces
2293 -- Interface_List (List2) (set to No_List if none)
2294 -- Interface_Present (Flag16) set in abstract interfaces
2296 -- Note: Task_Present, Protected_Present, Synchronized_Present,
2297 -- Interface_List, and Interface_Present are used for abstract
2298 -- interfaces (see comments for INTERFACE_TYPE_DEFINITION).
2300 ---------------------------
2301 -- 3.5 Range Constraint --
2302 ---------------------------
2304 -- RANGE_CONSTRAINT ::= range RANGE
2306 -- N_Range_Constraint
2307 -- Sloc points to RANGE
2308 -- Range_Expression (Node4)
2315 -- RANGE_ATTRIBUTE_REFERENCE
2316 -- | SIMPLE_EXPRESSION .. SIMPLE_EXPRESSION
2318 -- Note: the case of a range given as a range attribute reference
2319 -- appears directly in the tree as an attribute reference.
2321 -- Note: the field name for a reference to a range is Range_Expression
2322 -- rather than Range, because range is a reserved keyword in Ada!
2324 -- Note: the reason that this node has expression fields is that a
2325 -- range can appear as an operand of a membership test. The Etype
2326 -- field is the type of the range (we do NOT construct an implicit
2327 -- subtype to represent the range exactly).
2330 -- Sloc points to ..
2331 -- Low_Bound (Node1)
2332 -- High_Bound (Node2)
2333 -- Includes_Infinities (Flag11)
2334 -- plus fields for expression
2336 -- Note: if the range appears in a context, such as a subtype
2337 -- declaration, where range checks are required on one or both of
2338 -- the expression fields, then type conversion nodes are inserted
2339 -- to represent the required checks.
2341 ----------------------------------------
2342 -- 3.5.1 Enumeration Type Definition --
2343 ----------------------------------------
2345 -- ENUMERATION_TYPE_DEFINITION ::=
2346 -- (ENUMERATION_LITERAL_SPECIFICATION
2347 -- {, ENUMERATION_LITERAL_SPECIFICATION})
2349 -- Note: the Literals field in the node described below is null for
2350 -- the case of the standard types CHARACTER and WIDE_CHARACTER, for
2351 -- which special processing handles these types as special cases.
2353 -- N_Enumeration_Type_Definition
2354 -- Sloc points to left parenthesis
2355 -- Literals (List1) (Empty for CHARACTER or WIDE_CHARACTER)
2356 -- End_Label (Node4) (set to Empty if internally generated record)
2358 ----------------------------------------------
2359 -- 3.5.1 Enumeration Literal Specification --
2360 ----------------------------------------------
2362 -- ENUMERATION_LITERAL_SPECIFICATION ::=
2363 -- DEFINING_IDENTIFIER | DEFINING_CHARACTER_LITERAL
2365 ---------------------------------------
2366 -- 3.5.1 Defining Character Literal --
2367 ---------------------------------------
2369 -- DEFINING_CHARACTER_LITERAL ::= CHARACTER_LITERAL
2371 -- A defining character literal is an entity, which has additional
2372 -- fields depending on the setting of the Ekind field. These
2373 -- additional fields are defined (and access subprograms declared)
2374 -- in package Einfo.
2376 -- Note: N_Defining_Character_Literal is an extended node whose fields
2377 -- are deliberate layed out to match the layout of fields in an ordinary
2378 -- N_Character_Literal node allowing for easy alteration of a character
2379 -- literal node into a defining character literal node. For details, see
2380 -- Sinfo.CN.Change_Character_Literal_To_Defining_Character_Literal.
2382 -- N_Defining_Character_Literal
2383 -- Sloc points to literal
2384 -- Chars (Name1) contains the Name_Id for the identifier
2385 -- Next_Entity (Node2-Sem)
2386 -- Scope (Node3-Sem)
2387 -- Etype (Node5-Sem)
2389 ------------------------------------
2390 -- 3.5.4 Integer Type Definition --
2391 ------------------------------------
2393 -- Note: there is an error in this rule in the latest version of the
2394 -- grammar, so we have retained the old rule pending clarification.
2396 -- INTEGER_TYPE_DEFINITION ::=
2397 -- SIGNED_INTEGER_TYPE_DEFINITION
2398 -- | MODULAR_TYPE_DEFINITION
2400 -------------------------------------------
2401 -- 3.5.4 Signed Integer Type Definition --
2402 -------------------------------------------
2404 -- SIGNED_INTEGER_TYPE_DEFINITION ::=
2405 -- range static_SIMPLE_EXPRESSION .. static_SIMPLE_EXPRESSION
2407 -- Note: the Low_Bound and High_Bound fields are set to Empty
2408 -- for integer types defined in package Standard.
2410 -- N_Signed_Integer_Type_Definition
2411 -- Sloc points to RANGE
2412 -- Low_Bound (Node1)
2413 -- High_Bound (Node2)
2415 ------------------------------------
2416 -- 3.5.4 Modular Type Definition --
2417 ------------------------------------
2419 -- MODULAR_TYPE_DEFINITION ::= mod static_EXPRESSION
2421 -- N_Modular_Type_Definition
2422 -- Sloc points to MOD
2423 -- Expression (Node3)
2425 ---------------------------------
2426 -- 3.5.6 Real Type Definition --
2427 ---------------------------------
2429 -- REAL_TYPE_DEFINITION ::=
2430 -- FLOATING_POINT_DEFINITION | FIXED_POINT_DEFINITION
2432 --------------------------------------
2433 -- 3.5.7 Floating Point Definition --
2434 --------------------------------------
2436 -- FLOATING_POINT_DEFINITION ::=
2437 -- digits static_SIMPLE_EXPRESSION [REAL_RANGE_SPECIFICATION]
2439 -- Note: The Digits_Expression and Real_Range_Specifications fields
2440 -- are set to Empty for floating-point types declared in Standard.
2442 -- N_Floating_Point_Definition
2443 -- Sloc points to DIGITS
2444 -- Digits_Expression (Node2)
2445 -- Real_Range_Specification (Node4) (set to Empty if not present)
2447 -------------------------------------
2448 -- 3.5.7 Real Range Specification --
2449 -------------------------------------
2451 -- REAL_RANGE_SPECIFICATION ::=
2452 -- range static_SIMPLE_EXPRESSION .. static_SIMPLE_EXPRESSION
2454 -- N_Real_Range_Specification
2455 -- Sloc points to RANGE
2456 -- Low_Bound (Node1)
2457 -- High_Bound (Node2)
2459 -----------------------------------
2460 -- 3.5.9 Fixed Point Definition --
2461 -----------------------------------
2463 -- FIXED_POINT_DEFINITION ::=
2464 -- ORDINARY_FIXED_POINT_DEFINITION | DECIMAL_FIXED_POINT_DEFINITION
2466 --------------------------------------------
2467 -- 3.5.9 Ordinary Fixed Point Definition --
2468 --------------------------------------------
2470 -- ORDINARY_FIXED_POINT_DEFINITION ::=
2471 -- delta static_EXPRESSION REAL_RANGE_SPECIFICATION
2473 -- Note: In Ada 83, the EXPRESSION must be a SIMPLE_EXPRESSION
2475 -- N_Ordinary_Fixed_Point_Definition
2476 -- Sloc points to DELTA
2477 -- Delta_Expression (Node3)
2478 -- Real_Range_Specification (Node4)
2480 -------------------------------------------
2481 -- 3.5.9 Decimal Fixed Point Definition --
2482 -------------------------------------------
2484 -- DECIMAL_FIXED_POINT_DEFINITION ::=
2485 -- delta static_EXPRESSION
2486 -- digits static_EXPRESSION [REAL_RANGE_SPECIFICATION]
2488 -- Note: decimal types are not permitted in Ada 83 mode
2490 -- N_Decimal_Fixed_Point_Definition
2491 -- Sloc points to DELTA
2492 -- Delta_Expression (Node3)
2493 -- Digits_Expression (Node2)
2494 -- Real_Range_Specification (Node4) (set to Empty if not present)
2496 ------------------------------
2497 -- 3.5.9 Digits Constraint --
2498 ------------------------------
2500 -- DIGITS_CONSTRAINT ::=
2501 -- digits static_EXPRESSION [RANGE_CONSTRAINT]
2503 -- Note: in Ada 83, the EXPRESSION must be a SIMPLE_EXPRESSION
2504 -- Note: in Ada 95, reduced accuracy subtypes are obsolescent
2506 -- N_Digits_Constraint
2507 -- Sloc points to DIGITS
2508 -- Digits_Expression (Node2)
2509 -- Range_Constraint (Node4) (set to Empty if not present)
2511 --------------------------------
2512 -- 3.6 Array Type Definition --
2513 --------------------------------
2515 -- ARRAY_TYPE_DEFINITION ::=
2516 -- UNCONSTRAINED_ARRAY_DEFINITION | CONSTRAINED_ARRAY_DEFINITION
2518 -----------------------------------------
2519 -- 3.6 Unconstrained Array Definition --
2520 -----------------------------------------
2522 -- UNCONSTRAINED_ARRAY_DEFINITION ::=
2523 -- array (INDEX_SUBTYPE_DEFINITION {, INDEX_SUBTYPE_DEFINITION}) of
2524 -- COMPONENT_DEFINITION
2526 -- Note: dimensionality of array is indicated by number of entries in
2527 -- the Subtype_Marks list, which has one entry for each dimension.
2529 -- N_Unconstrained_Array_Definition
2530 -- Sloc points to ARRAY
2531 -- Subtype_Marks (List2)
2532 -- Component_Definition (Node4)
2534 -----------------------------------
2535 -- 3.6 Index Subtype Definition --
2536 -----------------------------------
2538 -- INDEX_SUBTYPE_DEFINITION ::= SUBTYPE_MARK range <>
2540 -- There is no explicit node in the tree for an index subtype
2541 -- definition since the N_Unconstrained_Array_Definition node
2542 -- incorporates the type marks which appear in this context.
2544 ---------------------------------------
2545 -- 3.6 Constrained Array Definition --
2546 ---------------------------------------
2548 -- CONSTRAINED_ARRAY_DEFINITION ::=
2549 -- array (DISCRETE_SUBTYPE_DEFINITION
2550 -- {, DISCRETE_SUBTYPE_DEFINITION})
2551 -- of COMPONENT_DEFINITION
2553 -- Note: dimensionality of array is indicated by number of entries
2554 -- in the Discrete_Subtype_Definitions list, which has one entry
2555 -- for each dimension.
2557 -- N_Constrained_Array_Definition
2558 -- Sloc points to ARRAY
2559 -- Discrete_Subtype_Definitions (List2)
2560 -- Component_Definition (Node4)
2562 --------------------------------------
2563 -- 3.6 Discrete Subtype Definition --
2564 --------------------------------------
2566 -- DISCRETE_SUBTYPE_DEFINITION ::=
2567 -- discrete_SUBTYPE_INDICATION | RANGE
2569 -------------------------------
2570 -- 3.6 Component Definition --
2571 -------------------------------
2573 -- COMPONENT_DEFINITION ::=
2574 -- [aliased] [NULL_EXCLUSION] SUBTYPE_INDICATION | ACCESS_DEFINITION
2576 -- Note: although the syntax does not permit a component definition to
2577 -- be an anonymous array (and the parser will diagnose such an attempt
2578 -- with an appropriate message), it is possible for anonymous arrays
2579 -- to appear as component definitions. The semantics and back end handle
2580 -- this case properly, and the expander in fact generates such cases.
2581 -- Access_Definition is an optional field that gives support to
2582 -- Ada 2005 (AI-230). The parser generates nodes that have either the
2583 -- Subtype_Indication field or else the Access_Definition field.
2585 -- N_Component_Definition
2586 -- Sloc points to ALIASED, ACCESS or to first token of subtype mark
2587 -- Aliased_Present (Flag4)
2588 -- Null_Exclusion_Present (Flag11)
2589 -- Subtype_Indication (Node5) (set to Empty if not present)
2590 -- Access_Definition (Node3) (set to Empty if not present)
2592 -----------------------------
2593 -- 3.6.1 Index Constraint --
2594 -----------------------------
2596 -- INDEX_CONSTRAINT ::= (DISCRETE_RANGE {, DISCRETE_RANGE})
2598 -- It is not in general possible to distinguish between discriminant
2599 -- constraints and index constraints at parse time, since a simple
2600 -- name could be either the subtype mark of a discrete range, or an
2601 -- expression in a discriminant association with no name. Either
2602 -- entry appears simply as the name, and the semantic parse must
2603 -- distinguish between the two cases. Thus we use a common tree
2604 -- node format for both of these constraint types.
2606 -- See Discriminant_Constraint for format of node
2608 ---------------------------
2609 -- 3.6.1 Discrete Range --
2610 ---------------------------
2612 -- DISCRETE_RANGE ::= discrete_SUBTYPE_INDICATION | RANGE
2614 ----------------------------
2615 -- 3.7 Discriminant Part --
2616 ----------------------------
2618 -- DISCRIMINANT_PART ::=
2619 -- UNKNOWN_DISCRIMINANT_PART | KNOWN_DISCRIMINANT_PART
2621 ------------------------------------
2622 -- 3.7 Unknown Discriminant Part --
2623 ------------------------------------
2625 -- UNKNOWN_DISCRIMINANT_PART ::= (<>)
2627 -- Note: unknown discriminant parts are not permitted in Ada 83 mode
2629 -- There is no explicit node in the tree for an unknown discriminant
2630 -- part. Instead the Unknown_Discriminants_Present flag is set in the
2633 ----------------------------------
2634 -- 3.7 Known Discriminant Part --
2635 ----------------------------------
2637 -- KNOWN_DISCRIMINANT_PART ::=
2638 -- (DISCRIMINANT_SPECIFICATION {; DISCRIMINANT_SPECIFICATION})
2640 -------------------------------------
2641 -- 3.7 Discriminant Specification --
2642 -------------------------------------
2644 -- DISCRIMINANT_SPECIFICATION ::=
2645 -- DEFINING_IDENTIFIER_LIST : [NULL_EXCLUSION] SUBTYPE_MARK
2646 -- [:= DEFAULT_EXPRESSION]
2647 -- | DEFINING_IDENTIFIER_LIST : ACCESS_DEFINITION
2648 -- [:= DEFAULT_EXPRESSION]
2650 -- Although the syntax allows multiple identifiers in the list, the
2651 -- semantics is as though successive specifications were given with
2652 -- identical type definition and expression components. To simplify
2653 -- semantic processing, the parser represents a multiple declaration
2654 -- case as a sequence of single specifications, using the More_Ids and
2655 -- Prev_Ids flags to preserve the original source form as described
2656 -- in the section on "Handling of Defining Identifier Lists".
2658 -- N_Discriminant_Specification
2659 -- Sloc points to first identifier
2660 -- Defining_Identifier (Node1)
2661 -- Null_Exclusion_Present (Flag11)
2662 -- Discriminant_Type (Node5) subtype mark or access parameter definition
2663 -- Expression (Node3) (set to Empty if no default expression)
2664 -- More_Ids (Flag5) (set to False if no more identifiers in list)
2665 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
2667 -----------------------------
2668 -- 3.7 Default Expression --
2669 -----------------------------
2671 -- DEFAULT_EXPRESSION ::= EXPRESSION
2673 ------------------------------------
2674 -- 3.7.1 Discriminant Constraint --
2675 ------------------------------------
2677 -- DISCRIMINANT_CONSTRAINT ::=
2678 -- (DISCRIMINANT_ASSOCIATION {, DISCRIMINANT_ASSOCIATION})
2680 -- It is not in general possible to distinguish between discriminant
2681 -- constraints and index constraints at parse time, since a simple
2682 -- name could be either the subtype mark of a discrete range, or an
2683 -- expression in a discriminant association with no name. Either
2684 -- entry appears simply as the name, and the semantic parse must
2685 -- distinguish between the two cases. Thus we use a common tree
2686 -- node format for both of these constraint types.
2688 -- N_Index_Or_Discriminant_Constraint
2689 -- Sloc points to left paren
2690 -- Constraints (List1) points to list of discrete ranges or
2691 -- discriminant associations
2693 -------------------------------------
2694 -- 3.7.1 Discriminant Association --
2695 -------------------------------------
2697 -- DISCRIMINANT_ASSOCIATION ::=
2698 -- [discriminant_SELECTOR_NAME
2699 -- {| discriminant_SELECTOR_NAME} =>] EXPRESSION
2701 -- Note: a discriminant association that has no selector name list
2702 -- appears directly as an expression in the tree.
2704 -- N_Discriminant_Association
2705 -- Sloc points to first token of discriminant association
2706 -- Selector_Names (List1) (always non-empty, since if no selector
2707 -- names are present, this node is not used, see comment above)
2708 -- Expression (Node3)
2710 ---------------------------------
2711 -- 3.8 Record Type Definition --
2712 ---------------------------------
2714 -- RECORD_TYPE_DEFINITION ::=
2715 -- [[abstract] tagged] [limited] RECORD_DEFINITION
2717 -- Note: ABSTRACT, TAGGED, LIMITED are not permitted in Ada 83 mode
2719 -- There is no explicit node in the tree for a record type definition.
2720 -- Instead the flags for Tagged_Present and Limited_Present appear in
2721 -- the N_Record_Definition node for a record definition appearing in
2722 -- the context of a record type definition.
2724 ----------------------------
2725 -- 3.8 Record Definition --
2726 ----------------------------
2728 -- RECORD_DEFINITION ::=
2734 -- Note: the Abstract_Present, Tagged_Present and Limited_Present
2735 -- flags appear only for a record definition appearing in a record
2738 -- Note: the NULL RECORD case is not permitted in Ada 83
2740 -- N_Record_Definition
2741 -- Sloc points to RECORD or NULL
2742 -- End_Label (Node4) (set to Empty if internally generated record)
2743 -- Abstract_Present (Flag4)
2744 -- Tagged_Present (Flag15)
2745 -- Limited_Present (Flag17)
2746 -- Component_List (Node1) empty in null record case
2747 -- Null_Present (Flag13) set in null record case
2748 -- Task_Present (Flag5) set in task interfaces
2749 -- Protected_Present (Flag6) set in protected interfaces
2750 -- Synchronized_Present (Flag7) set in interfaces
2751 -- Interface_Present (Flag16) set in abstract interfaces
2752 -- Interface_List (List2) (set to No_List if none)
2754 -- Note: Task_Present, Protected_Present, Synchronized _Present,
2755 -- Interface_List and Interface_Present are used for abstract
2756 -- interfaces (see comments for INTERFACE_TYPE_DEFINITION).
2758 -------------------------
2759 -- 3.8 Component List --
2760 -------------------------
2762 -- COMPONENT_LIST ::=
2763 -- COMPONENT_ITEM {COMPONENT_ITEM}
2764 -- | {COMPONENT_ITEM} VARIANT_PART
2768 -- Sloc points to first token of component list
2769 -- Component_Items (List3)
2770 -- Variant_Part (Node4) (set to Empty if no variant part)
2771 -- Null_Present (Flag13)
2773 -------------------------
2774 -- 3.8 Component Item --
2775 -------------------------
2777 -- COMPONENT_ITEM ::= COMPONENT_DECLARATION | REPRESENTATION_CLAUSE
2779 -- Note: A component item can also be a pragma, and in the tree
2780 -- that is obtained after semantic processing, a component item
2781 -- can be an N_Null node resulting from a non-recognized pragma.
2783 --------------------------------
2784 -- 3.8 Component Declaration --
2785 --------------------------------
2787 -- COMPONENT_DECLARATION ::=
2788 -- DEFINING_IDENTIFIER_LIST : COMPONENT_DEFINITION
2789 -- [:= DEFAULT_EXPRESSION]
2791 -- Note: although the syntax does not permit a component definition to
2792 -- be an anonymous array (and the parser will diagnose such an attempt
2793 -- with an appropriate message), it is possible for anonymous arrays
2794 -- to appear as component definitions. The semantics and back end handle
2795 -- this case properly, and the expander in fact generates such cases.
2797 -- Although the syntax allows multiple identifiers in the list, the
2798 -- semantics is as though successive declarations were given with the
2799 -- same component definition and expression components. To simplify
2800 -- semantic processing, the parser represents a multiple declaration
2801 -- case as a sequence of single declarations, using the More_Ids and
2802 -- Prev_Ids flags to preserve the original source form as described
2803 -- in the section on "Handling of Defining Identifier Lists".
2805 -- N_Component_Declaration
2806 -- Sloc points to first identifier
2807 -- Defining_Identifier (Node1)
2808 -- Component_Definition (Node4)
2809 -- Expression (Node3) (set to Empty if no default expression)
2810 -- More_Ids (Flag5) (set to False if no more identifiers in list)
2811 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
2813 -------------------------
2814 -- 3.8.1 Variant Part --
2815 -------------------------
2818 -- case discriminant_DIRECT_NAME is
2823 -- Note: the variants list can contain pragmas as well as variants.
2824 -- In a properly formed program there is at least one variant.
2827 -- Sloc points to CASE
2831 --------------------
2833 --------------------
2836 -- when DISCRETE_CHOICE_LIST =>
2840 -- Sloc points to WHEN
2841 -- Discrete_Choices (List4)
2842 -- Component_List (Node1)
2843 -- Enclosing_Variant (Node2-Sem)
2844 -- Present_Expr (Uint3-Sem)
2845 -- Dcheck_Function (Node5-Sem)
2847 ---------------------------------
2848 -- 3.8.1 Discrete Choice List --
2849 ---------------------------------
2851 -- DISCRETE_CHOICE_LIST ::= DISCRETE_CHOICE {| DISCRETE_CHOICE}
2853 ----------------------------
2854 -- 3.8.1 Discrete Choice --
2855 ----------------------------
2857 -- DISCRETE_CHOICE ::= EXPRESSION | DISCRETE_RANGE | others
2859 -- Note: in Ada 83 mode, the expression must be a simple expression
2861 -- The only choice that appears explicitly is the OTHERS choice, as
2862 -- defined here. Other cases of discrete choice (expression and
2863 -- discrete range) appear directly. This production is also used
2864 -- for the OTHERS possibility of an exception choice.
2866 -- Note: in accordance with the syntax, the parser does not check that
2867 -- OTHERS appears at the end on its own in a choice list context. This
2868 -- is a semantic check.
2871 -- Sloc points to OTHERS
2872 -- Others_Discrete_Choices (List1-Sem)
2873 -- All_Others (Flag11-Sem)
2875 ----------------------------------
2876 -- 3.9.1 Record Extension Part --
2877 ----------------------------------
2879 -- RECORD_EXTENSION_PART ::= with RECORD_DEFINITION
2881 -- Note: record extension parts are not permitted in Ada 83 mode
2883 --------------------------------------
2884 -- 3.9.4 Interface Type Definition --
2885 --------------------------------------
2887 -- INTERFACE_TYPE_DEFINITION ::=
2888 -- [limited | task | protected | synchronized]
2889 -- interface [interface_list]
2891 -- Note: Interfaces are implemented with N_Record_Definition and
2892 -- N_Derived_Type_Definition nodes because most of the support
2893 -- for the analysis of abstract types has been reused to
2894 -- analyze abstract interfaces.
2896 ----------------------------------
2897 -- 3.10 Access Type Definition --
2898 ----------------------------------
2900 -- ACCESS_TYPE_DEFINITION ::=
2901 -- ACCESS_TO_OBJECT_DEFINITION
2902 -- | ACCESS_TO_SUBPROGRAM_DEFINITION
2904 --------------------------
2905 -- 3.10 Null Exclusion --
2906 --------------------------
2908 -- NULL_EXCLUSION ::= not null
2910 ---------------------------------------
2911 -- 3.10 Access To Object Definition --
2912 ---------------------------------------
2914 -- ACCESS_TO_OBJECT_DEFINITION ::=
2915 -- [NULL_EXCLUSION] access [GENERAL_ACCESS_MODIFIER]
2916 -- SUBTYPE_INDICATION
2918 -- N_Access_To_Object_Definition
2919 -- Sloc points to ACCESS
2920 -- All_Present (Flag15)
2921 -- Null_Exclusion_Present (Flag11)
2922 -- Subtype_Indication (Node5)
2923 -- Constant_Present (Flag17)
2925 -----------------------------------
2926 -- 3.10 General Access Modifier --
2927 -----------------------------------
2929 -- GENERAL_ACCESS_MODIFIER ::= all | constant
2931 -- Note: general access modifiers are not permitted in Ada 83 mode
2933 -- There is no explicit node in the tree for general access modifier.
2934 -- Instead the All_Present or Constant_Present flags are set in the
2937 -------------------------------------------
2938 -- 3.10 Access To Subprogram Definition --
2939 -------------------------------------------
2941 -- ACCESS_TO_SUBPROGRAM_DEFINITION
2942 -- [NULL_EXCLUSION] access [protected] procedure PARAMETER_PROFILE
2943 -- | [NULL_EXCLUSION] access [protected] function
2944 -- PARAMETER_AND_RESULT_PROFILE
2946 -- Note: access to subprograms are not permitted in Ada 83 mode
2948 -- N_Access_Function_Definition
2949 -- Sloc points to ACCESS
2950 -- Null_Exclusion_Present (Flag11)
2951 -- Null_Exclusion_In_Return_Present (Flag14)
2952 -- Protected_Present (Flag6)
2953 -- Parameter_Specifications (List3) (set to No_List if no formal part)
2954 -- Result_Definition (Node4) result subtype (subtype mark or access def)
2956 -- N_Access_Procedure_Definition
2957 -- Sloc points to ACCESS
2958 -- Null_Exclusion_Present (Flag11)
2959 -- Protected_Present (Flag6)
2960 -- Parameter_Specifications (List3) (set to No_List if no formal part)
2962 -----------------------------
2963 -- 3.10 Access Definition --
2964 -----------------------------
2966 -- ACCESS_DEFINITION ::=
2967 -- [NULL_EXCLUSION] access [GENERAL_ACCESS_MODIFIER] SUBTYPE_MARK
2968 -- | ACCESS_TO_SUBPROGRAM_DEFINITION
2970 -- Note: access to subprograms are an Ada 2005 (AI-254) extension
2972 -- N_Access_Definition
2973 -- Sloc points to ACCESS
2974 -- Null_Exclusion_Present (Flag11)
2975 -- All_Present (Flag15)
2976 -- Constant_Present (Flag17)
2977 -- Subtype_Mark (Node4)
2978 -- Access_To_Subprogram_Definition (Node3) (set to Empty if not present)
2980 -----------------------------------------
2981 -- 3.10.1 Incomplete Type Declaration --
2982 -----------------------------------------
2984 -- INCOMPLETE_TYPE_DECLARATION ::=
2985 -- type DEFINING_IDENTIFIER [DISCRIMINANT_PART] [IS TAGGED];
2987 -- N_Incomplete_Type_Declaration
2988 -- Sloc points to TYPE
2989 -- Defining_Identifier (Node1)
2990 -- Discriminant_Specifications (List4) (set to No_List if no
2991 -- discriminant part, or if the discriminant part is an
2992 -- unknown discriminant part)
2993 -- Unknown_Discriminants_Present (Flag13) set if (<>) discriminant
2994 -- Tagged_Present (Flag15)
2996 ----------------------------
2997 -- 3.11 Declarative Part --
2998 ----------------------------
3000 -- DECLARATIVE_PART ::= {DECLARATIVE_ITEM}
3002 -- Note: although the parser enforces the syntactic requirement that
3003 -- a declarative part can contain only declarations, the semantic
3004 -- processing may add statements to the list of actions in a
3005 -- declarative part, so the code generator should be prepared
3006 -- to accept a statement in this position.
3008 ----------------------------
3009 -- 3.11 Declarative Item --
3010 ----------------------------
3012 -- DECLARATIVE_ITEM ::= BASIC_DECLARATIVE_ITEM | BODY
3014 ----------------------------------
3015 -- 3.11 Basic Declarative Item --
3016 ----------------------------------
3018 -- BASIC_DECLARATIVE_ITEM ::=
3019 -- BASIC_DECLARATION | REPRESENTATION_CLAUSE | USE_CLAUSE
3025 -- BODY ::= PROPER_BODY | BODY_STUB
3027 -----------------------
3028 -- 3.11 Proper Body --
3029 -----------------------
3032 -- SUBPROGRAM_BODY | PACKAGE_BODY | TASK_BODY | PROTECTED_BODY
3039 -- DIRECT_NAME | EXPLICIT_DEREFERENCE
3040 -- | INDEXED_COMPONENT | SLICE
3041 -- | SELECTED_COMPONENT | ATTRIBUTE_REFERENCE
3042 -- | TYPE_CONVERSION | FUNCTION_CALL
3043 -- | CHARACTER_LITERAL
3045 ----------------------
3046 -- 4.1 Direct Name --
3047 ----------------------
3049 -- DIRECT_NAME ::= IDENTIFIER | OPERATOR_SYMBOL
3055 -- PREFIX ::= NAME | IMPLICIT_DEREFERENCE
3057 -------------------------------
3058 -- 4.1 Explicit Dereference --
3059 -------------------------------
3061 -- EXPLICIT_DEREFERENCE ::= NAME . all
3063 -- N_Explicit_Dereference
3064 -- Sloc points to ALL
3066 -- Actual_Designated_Subtype (Node4-Sem)
3067 -- plus fields for expression
3069 -------------------------------
3070 -- 4.1 Implicit Dereference --
3071 -------------------------------
3073 -- IMPLICIT_DEREFERENCE ::= NAME
3075 ------------------------------
3076 -- 4.1.1 Indexed Component --
3077 ------------------------------
3079 -- INDEXED_COMPONENT ::= PREFIX (EXPRESSION {, EXPRESSION})
3081 -- Note: the parser may generate this node in some situations where it
3082 -- should be a function call. The semantic pass must correct this
3083 -- misidentification (which is inevitable at the parser level).
3085 -- N_Indexed_Component
3086 -- Sloc contains a copy of the Sloc value of the Prefix
3088 -- Expressions (List1)
3089 -- plus fields for expression
3091 -- Note: if any of the subscripts requires a range check, then the
3092 -- Do_Range_Check flag is set on the corresponding expression, with
3093 -- the index type being determined from the type of the Prefix, which
3094 -- references the array being indexed.
3096 -- Note: in a fully analyzed and expanded indexed component node, and
3097 -- hence in any such node that gigi sees, if the prefix is an access
3098 -- type, then an explicit dereference operation has been inserted.
3104 -- SLICE ::= PREFIX (DISCRETE_RANGE)
3106 -- Note: an implicit subtype is created to describe the resulting
3107 -- type, so that the bounds of this type are the bounds of the slice.
3110 -- Sloc points to first token of prefix
3112 -- Discrete_Range (Node4)
3113 -- plus fields for expression
3115 -------------------------------
3116 -- 4.1.3 Selected Component --
3117 -------------------------------
3119 -- SELECTED_COMPONENT ::= PREFIX . SELECTOR_NAME
3121 -- Note: selected components that are semantically expanded names get
3122 -- changed during semantic processing into the separate N_Expanded_Name
3123 -- node. See description of this node in the section on semantic nodes.
3125 -- N_Selected_Component
3126 -- Sloc points to period
3128 -- Selector_Name (Node2)
3129 -- Associated_Node (Node4-Sem)
3130 -- Do_Discriminant_Check (Flag13-Sem)
3131 -- Is_In_Discriminant_Check (Flag11-Sem)
3132 -- plus fields for expression
3134 --------------------------
3135 -- 4.1.3 Selector Name --
3136 --------------------------
3138 -- SELECTOR_NAME ::= IDENTIFIER | CHARACTER_LITERAL | OPERATOR_SYMBOL
3140 --------------------------------
3141 -- 4.1.4 Attribute Reference --
3142 --------------------------------
3144 -- ATTRIBUTE_REFERENCE ::= PREFIX ' ATTRIBUTE_DESIGNATOR
3146 -- Note: the syntax is quite ambiguous at this point. Consider:
3148 -- A'Length (X) X is part of the attribute designator
3149 -- A'Pos (X) X is an explicit actual parameter of function A'Pos
3150 -- A'Class (X) X is the expression of a type conversion
3152 -- It would be possible for the parser to distinguish these cases
3153 -- by looking at the attribute identifier. However, that would mean
3154 -- more work in introducing new implementation defined attributes,
3155 -- and also it would mean that special processing for attributes
3156 -- would be scattered around, instead of being centralized in the
3157 -- semantic routine that handles an N_Attribute_Reference node.
3158 -- Consequently, the parser in all the above cases stores the
3159 -- expression (X in these examples) as a single element list in
3160 -- in the Expressions field of the N_Attribute_Reference node.
3162 -- Similarly, for attributes like Max which take two arguments,
3163 -- we store the two arguments as a two element list in the
3164 -- Expressions field. Of course it is clear at parse time that
3165 -- this case is really a function call with an attribute as the
3166 -- prefix, but it turns out to be convenient to handle the two
3167 -- argument case in a similar manner to the one argument case,
3168 -- and indeed in general the parser will accept any number of
3169 -- expressions in this position and store them as a list in the
3170 -- attribute reference node. This allows for future addition of
3171 -- attributes that take more than two arguments.
3173 -- Note: named associates are not permitted in function calls where
3174 -- the function is an attribute (see RM 6.4(3)) so it is legitimate
3175 -- to skip the normal subprogram argument processing.
3177 -- Note: for the attributes whose designators are technically keywords,
3178 -- i.e. digits, access, delta, range, the Attribute_Name field contains
3179 -- the corresponding name, even though no identifier is involved.
3181 -- Note: the generated code may contain stream attributes applied to
3182 -- limited types for which no stream routines exist officially. In such
3183 -- case, the result is to use the stream attribute for the underlying
3184 -- full type, or in the case of a protected type, the components
3185 -- (including any discriminants) are merely streamed in order.
3187 -- See Exp_Attr for a complete description of which attributes are
3188 -- passed onto Gigi, and which are handled entirely by the front end.
3190 -- Gigi restriction: For the Pos attribute, the prefix cannot be
3191 -- a non-standard enumeration type or a nonzero/zero semantics
3192 -- boolean type, so the value is simply the stored representation.
3194 -- Gigi requirement: For the Mechanism_Code attribute, if the prefix
3195 -- references a subprogram that is a renaming, then the front end must
3196 -- rewrite the attribute to refer directly to the renamed entity.
3198 -- Note: In generated code, the Address and Unrestricted_Access
3199 -- attributes can be applied to any expression, and the meaning is
3200 -- to create an object containing the value (the object is in the
3201 -- current stack frame), and pass the address of this value. If the
3202 -- Must_Be_Byte_Aligned flag is set, then the object whose address
3203 -- is taken must be on a byte (storage unit) boundary, and if it is
3204 -- not (or may not be), then the generated code must create a copy
3205 -- that is byte aligned, and pass the address of this copy.
3207 -- N_Attribute_Reference
3208 -- Sloc points to apostrophe
3210 -- Attribute_Name (Name2) identifier name from attribute designator
3211 -- Expressions (List1) (set to No_List if no associated expressions)
3212 -- Entity (Node4-Sem) used if the attribute yields a type
3213 -- Associated_Node (Node4-Sem)
3214 -- Do_Overflow_Check (Flag17-Sem)
3215 -- Redundant_Use (Flag13-Sem)
3216 -- Must_Be_Byte_Aligned (Flag14)
3217 -- plus fields for expression
3219 ---------------------------------
3220 -- 4.1.4 Attribute Designator --
3221 ---------------------------------
3223 -- ATTRIBUTE_DESIGNATOR ::=
3224 -- IDENTIFIER [(static_EXPRESSION)]
3225 -- | access | delta | digits
3227 -- There is no explicit node in the tree for an attribute designator.
3228 -- Instead the Attribute_Name and Expressions fields of the parent
3229 -- node (N_Attribute_Reference node) hold the information.
3231 -- Note: if ACCESS, DELTA or DIGITS appears in an attribute
3232 -- designator, then they are treated as identifiers internally
3233 -- rather than the keywords of the same name.
3235 --------------------------------------
3236 -- 4.1.4 Range Attribute Reference --
3237 --------------------------------------
3239 -- RANGE_ATTRIBUTE_REFERENCE ::= PREFIX ' RANGE_ATTRIBUTE_DESIGNATOR
3241 -- A range attribute reference is represented in the tree using the
3242 -- normal N_Attribute_Reference node.
3244 ---------------------------------------
3245 -- 4.1.4 Range Attribute Designator --
3246 ---------------------------------------
3248 -- RANGE_ATTRIBUTE_DESIGNATOR ::= Range [(static_EXPRESSION)]
3250 -- A range attribute designator is represented in the tree using the
3251 -- normal N_Attribute_Reference node.
3253 --------------------
3255 --------------------
3258 -- RECORD_AGGREGATE | EXTENSION_AGGREGATE | ARRAY_AGGREGATE
3260 -----------------------------
3261 -- 4.3.1 Record Aggregate --
3262 -----------------------------
3264 -- RECORD_AGGREGATE ::= (RECORD_COMPONENT_ASSOCIATION_LIST)
3267 -- Sloc points to left parenthesis
3268 -- Expressions (List1) (set to No_List if none or null record case)
3269 -- Component_Associations (List2) (set to No_List if none)
3270 -- Null_Record_Present (Flag17)
3271 -- Aggregate_Bounds (Node3-Sem)
3272 -- Associated_Node (Node4-Sem)
3273 -- Static_Processing_OK (Flag4-Sem)
3274 -- Compile_Time_Known_Aggregate (Flag18-Sem)
3275 -- Expansion_Delayed (Flag11-Sem)
3276 -- Has_Self_Reference (Flag13-Sem)
3277 -- plus fields for expression
3279 -- Note: this structure is used for both record and array aggregates
3280 -- since the two cases are not separable by the parser. The parser
3281 -- makes no attempt to enforce consistency here, so it is up to the
3282 -- semantic phase to make sure that the aggregate is consistent (i.e.
3283 -- that it is not a "half-and-half" case that mixes record and array
3284 -- syntax. In particular, for a record aggregate, the expressions
3285 -- field will be set if there are positional associations.
3287 -- Note: N_Aggregate is not used for all aggregates; in particular,
3288 -- there is a separate node kind for extension aggregates.
3290 -- Note: gigi/gcc can handle array aggregates correctly providing that
3291 -- they are entirely positional, and the array subtype involved has a
3292 -- known at compile time length and is not bit packed, or a convention
3293 -- Fortran array with more than one dimension. If these conditions
3294 -- are not met, then the front end must translate the aggregate into
3295 -- an appropriate set of assignments into a temporary.
3297 -- Note: for the record aggregate case, gigi/gcc can handle all cases
3298 -- of record aggregates, including those for packed, and rep-claused
3299 -- records, and also variant records, providing that there are no
3300 -- variable length fields whose size is not known at runtime, and
3301 -- providing that the aggregate is presented in fully named form.
3303 ----------------------------------------------
3304 -- 4.3.1 Record Component Association List --
3305 ----------------------------------------------
3307 -- RECORD_COMPONENT_ASSOCIATION_LIST ::=
3308 -- RECORD_COMPONENT_ASSOCIATION {, RECORD_COMPONENT_ASSOCIATION}
3311 -- There is no explicit node in the tree for a record component
3312 -- association list. Instead the Null_Record_Present flag is set in
3313 -- the parent node for the NULL RECORD case.
3315 ------------------------------------------------------
3316 -- 4.3.1 Record Component Association (also 4.3.3) --
3317 ------------------------------------------------------
3319 -- RECORD_COMPONENT_ASSOCIATION ::=
3320 -- [COMPONENT_CHOICE_LIST =>] EXPRESSION
3322 -- N_Component_Association
3323 -- Sloc points to first selector name
3325 -- Loop_Actions (List2-Sem)
3326 -- Expression (Node3)
3327 -- Box_Present (Flag15)
3329 -- Note: this structure is used for both record component associations
3330 -- and array component associations, since the two cases aren't always
3331 -- separable by the parser. The choices list may represent either a
3332 -- list of selector names in the record aggregate case, or a list of
3333 -- discrete choices in the array aggregate case or an N_Others_Choice
3334 -- node (which appears as a singleton list). Box_Present gives support
3335 -- to Ada 2005 (AI-287).
3337 ----------------------------------
3338 -- 4.3.1 Component Choice List --
3339 ----------------------------------
3341 -- COMPONENT_CHOICE_LIST ::=
3342 -- component_SELECTOR_NAME {| component_SELECTOR_NAME}
3345 -- The entries of a component choice list appear in the Choices list of
3346 -- the associated N_Component_Association, as either selector names, or
3347 -- as an N_Others_Choice node.
3349 --------------------------------
3350 -- 4.3.2 Extension Aggregate --
3351 --------------------------------
3353 -- EXTENSION_AGGREGATE ::=
3354 -- (ANCESTOR_PART with RECORD_COMPONENT_ASSOCIATION_LIST)
3356 -- Note: extension aggregates are not permitted in Ada 83 mode
3358 -- N_Extension_Aggregate
3359 -- Sloc points to left parenthesis
3360 -- Ancestor_Part (Node3)
3361 -- Associated_Node (Node4-Sem)
3362 -- Expressions (List1) (set to No_List if none or null record case)
3363 -- Component_Associations (List2) (set to No_List if none)
3364 -- Null_Record_Present (Flag17)
3365 -- Expansion_Delayed (Flag11-Sem)
3366 -- Has_Self_Reference (Flag13-Sem)
3367 -- plus fields for expression
3369 --------------------------
3370 -- 4.3.2 Ancestor Part --
3371 --------------------------
3373 -- ANCESTOR_PART ::= EXPRESSION | SUBTYPE_MARK
3375 ----------------------------
3376 -- 4.3.3 Array Aggregate --
3377 ----------------------------
3379 -- ARRAY_AGGREGATE ::=
3380 -- POSITIONAL_ARRAY_AGGREGATE | NAMED_ARRAY_AGGREGATE
3382 ---------------------------------------
3383 -- 4.3.3 Positional Array Aggregate --
3384 ---------------------------------------
3386 -- POSITIONAL_ARRAY_AGGREGATE ::=
3387 -- (EXPRESSION, EXPRESSION {, EXPRESSION})
3388 -- | (EXPRESSION {, EXPRESSION}, others => EXPRESSION)
3390 -- See Record_Aggregate (4.3.1) for node structure
3392 ----------------------------------
3393 -- 4.3.3 Named Array Aggregate --
3394 ----------------------------------
3396 -- NAMED_ARRAY_AGGREGATE ::=
3397 -- | (ARRAY_COMPONENT_ASSOCIATION {, ARRAY_COMPONENT_ASSOCIATION})
3399 -- See Record_Aggregate (4.3.1) for node structure
3401 ----------------------------------------
3402 -- 4.3.3 Array Component Association --
3403 ----------------------------------------
3405 -- ARRAY_COMPONENT_ASSOCIATION ::=
3406 -- DISCRETE_CHOICE_LIST => EXPRESSION
3408 -- See Record_Component_Association (4.3.1) for node structure
3410 --------------------------------------------------
3411 -- 4.4 Expression/Relation/Term/Factor/Primary --
3412 --------------------------------------------------
3415 -- RELATION {and RELATION} | RELATION {and then RELATION}
3416 -- | RELATION {or RELATION} | RELATION {or else RELATION}
3417 -- | RELATION {xor RELATION}
3420 -- SIMPLE_EXPRESSION [RELATIONAL_OPERATOR SIMPLE_EXPRESSION]
3421 -- | SIMPLE_EXPRESSION [not] in RANGE
3422 -- | SIMPLE_EXPRESSION [not] in SUBTYPE_MARK
3424 -- SIMPLE_EXPRESSION ::=
3425 -- [UNARY_ADDING_OPERATOR] TERM {BINARY_ADDING_OPERATOR TERM}
3427 -- TERM ::= FACTOR {MULTIPLYING_OPERATOR FACTOR}
3429 -- FACTOR ::= PRIMARY [** PRIMARY] | abs PRIMARY | not PRIMARY
3431 -- No nodes are generated for any of these constructs. Instead, the
3432 -- node for the operator appears directly. When we refer to an
3433 -- expression in this description, we mean any of the possible
3434 -- constituent components of an expression (e.g. identifier is
3435 -- an example of an expression).
3442 -- NUMERIC_LITERAL | null
3443 -- | STRING_LITERAL | AGGREGATE
3444 -- | NAME | QUALIFIED_EXPRESSION
3445 -- | ALLOCATOR | (EXPRESSION)
3447 -- Usually there is no explicit node in the tree for primary. Instead
3448 -- the constituent (e.g. AGGREGATE) appears directly. There are two
3449 -- exceptions. First, there is an explicit node for a null primary.
3452 -- Sloc points to NULL
3453 -- plus fields for expression
3455 -- Second, the case of (EXPRESSION) is handled specially. Ada requires
3456 -- that the parser keep track of which subexpressions are enclosed
3457 -- in parentheses, and how many levels of parentheses are used. This
3458 -- information is required for optimization purposes, and also for
3459 -- some semantic checks (e.g. (((1))) in a procedure spec does not
3460 -- conform with ((((1)))) in the body).
3462 -- The parentheses are recorded by keeping a Paren_Count field in every
3463 -- subexpression node (it is actually present in all nodes, but only
3464 -- used in subexpression nodes). This count records the number of
3465 -- levels of parentheses. If the number of levels in the source exceeds
3466 -- the maximum accommodated by this count, then the count is simply left
3467 -- at the maximum value. This means that there are some pathological
3468 -- cases of failure to detect conformance failures (e.g. an expression
3469 -- with 500 levels of parens will conform with one with 501 levels),
3470 -- but we do not need to lose sleep over this.
3472 -- Historical note: in versions of GNAT prior to 1.75, there was a node
3473 -- type N_Parenthesized_Expression used to accurately record unlimited
3474 -- numbers of levels of parentheses. However, it turned out to be a
3475 -- real nuisance to have to take into account the possible presence of
3476 -- this node during semantic analysis, since basically parentheses have
3477 -- zero relevance to semantic analysis.
3479 -- Note: the level of parentheses always present in things like
3480 -- aggregates does not count, only the parentheses in the primary
3481 -- (EXPRESSION) affect the setting of the Paren_Count field.
3483 -- 2nd Note: the contents of the Expression field must be ignored (i.e.
3484 -- treated as though it were Empty) if No_Initialization is set True.
3486 --------------------------------------
3487 -- 4.5 Short Circuit Control Forms --
3488 --------------------------------------
3491 -- RELATION {and then RELATION} | RELATION {or else RELATION}
3493 -- Gigi restriction: For both these control forms, the operand and
3494 -- result types are always Standard.Boolean. The expander inserts the
3495 -- required conversion operations where needed to ensure this is the
3499 -- Sloc points to AND of AND THEN
3500 -- Left_Opnd (Node2)
3501 -- Right_Opnd (Node3)
3502 -- Actions (List1-Sem)
3503 -- plus fields for expression
3506 -- Sloc points to OR of OR ELSE
3507 -- Left_Opnd (Node2)
3508 -- Right_Opnd (Node3)
3509 -- Actions (List1-Sem)
3510 -- plus fields for expression
3512 -- Note: The Actions field is used to hold actions associated with
3513 -- the right hand operand. These have to be treated specially since
3514 -- they are not unconditionally executed. See Insert_Actions for a
3515 -- more detailed description of how these actions are handled.
3517 ---------------------------
3518 -- 4.5 Membership Tests --
3519 ---------------------------
3522 -- SIMPLE_EXPRESSION [not] in RANGE
3523 -- | SIMPLE_EXPRESSION [not] in SUBTYPE_MARK
3525 -- Note: although the grammar above allows only a range or a subtype
3526 -- mark, the parser in fact will accept any simple expression in place
3527 -- of a subtype mark. This means that the semantic analyzer must be able
3528 -- to deal with, and diagnose a simple expression other than a name for
3529 -- the right operand. This simplifies error recovery in the parser.
3531 -- If extensions are enabled, the grammar is as follows:
3534 -- SIMPLE_EXPRESSION [not] in SET_ALTERNATIVE {| SET_ALTERNATIVE}
3536 -- SET_ALTERNATIVE ::= RANGE | SUBTYPE_MARK
3538 -- The Alternatives field below is present only if there is more than
3539 -- one Set_Alternative present, in which case Right_Opnd is set to
3540 -- Empty, and Alternatives contains the list of alternatives. In the
3541 -- tree passed to the back end, Alternatives is always No_List, and
3542 -- Right_Opnd is set (i.e. the expansion circuitry expands out the
3543 -- complex set membership case using simple membership operations).
3546 -- Sloc points to IN
3547 -- Left_Opnd (Node2)
3548 -- Right_Opnd (Node3)
3549 -- Alternatives (List4) (set to No_List if only one set alternative)
3550 -- plus fields for expression
3553 -- Sloc points to NOT of NOT IN
3554 -- Left_Opnd (Node2)
3555 -- Right_Opnd (Node3)
3556 -- Alternatives (List4) (set to No_List if only one set alternative)
3557 -- plus fields for expression
3559 --------------------
3561 --------------------
3563 -- LOGICAL_OPERATOR ::= and | or | xor
3565 -- RELATIONAL_OPERATOR ::= = | /= | < | <= | > | >=
3567 -- BINARY_ADDING_OPERATOR ::= + | - | &
3569 -- UNARY_ADDING_OPERATOR ::= + | -
3571 -- MULTIPLYING_OPERATOR ::= * | / | mod | rem
3573 -- HIGHEST_PRECEDENCE_OPERATOR ::= ** | abs | not
3575 -- Sprint syntax if Treat_Fixed_As_Integer is set:
3582 -- Gigi restriction: For * / mod rem with fixed-point operands, Gigi
3583 -- will only be given nodes with the Treat_Fixed_As_Integer flag set.
3584 -- All handling of smalls for multiplication and division is handled
3585 -- by the front end (mod and rem result only from expansion). Gigi
3586 -- thus never needs to worry about small values (for other operators
3587 -- operating on fixed-point, e.g. addition, the small value does not
3588 -- have any semantic effect anyway, these are always integer operations.
3590 -- Gigi restriction: For all operators taking Boolean operands, the
3591 -- type is always Standard.Boolean. The expander inserts the required
3592 -- conversion operations where needed to ensure this is the case.
3595 -- Sloc points to AND
3596 -- Do_Length_Check (Flag4-Sem)
3597 -- plus fields for binary operator
3598 -- plus fields for expression
3601 -- Sloc points to OR
3602 -- Do_Length_Check (Flag4-Sem)
3603 -- plus fields for binary operator
3604 -- plus fields for expression
3607 -- Sloc points to XOR
3608 -- Do_Length_Check (Flag4-Sem)
3609 -- plus fields for binary operator
3610 -- plus fields for expression
3614 -- plus fields for binary operator
3615 -- plus fields for expression
3618 -- Sloc points to /=
3619 -- plus fields for binary operator
3620 -- plus fields for expression
3624 -- plus fields for binary operator
3625 -- plus fields for expression
3628 -- Sloc points to <=
3629 -- plus fields for binary operator
3630 -- plus fields for expression
3634 -- plus fields for binary operator
3635 -- plus fields for expression
3638 -- Sloc points to >=
3639 -- plus fields for binary operator
3640 -- plus fields for expression
3643 -- Sloc points to + (binary)
3644 -- plus fields for binary operator
3645 -- plus fields for expression
3648 -- Sloc points to - (binary)
3649 -- plus fields for binary operator
3650 -- plus fields for expression
3654 -- Is_Component_Left_Opnd (Flag13-Sem)
3655 -- Is_Component_Right_Opnd (Flag14-Sem)
3656 -- plus fields for binary operator
3657 -- plus fields for expression
3661 -- Treat_Fixed_As_Integer (Flag14-Sem)
3662 -- Rounded_Result (Flag18-Sem)
3663 -- plus fields for binary operator
3664 -- plus fields for expression
3668 -- Treat_Fixed_As_Integer (Flag14-Sem)
3669 -- Do_Division_Check (Flag13-Sem)
3670 -- Rounded_Result (Flag18-Sem)
3671 -- plus fields for binary operator
3672 -- plus fields for expression
3675 -- Sloc points to MOD
3676 -- Treat_Fixed_As_Integer (Flag14-Sem)
3677 -- Do_Division_Check (Flag13-Sem)
3678 -- plus fields for binary operator
3679 -- plus fields for expression
3682 -- Sloc points to REM
3683 -- Treat_Fixed_As_Integer (Flag14-Sem)
3684 -- Do_Division_Check (Flag13-Sem)
3685 -- plus fields for binary operator
3686 -- plus fields for expression
3689 -- Is_Power_Of_2_For_Shift (Flag13-Sem)
3690 -- Sloc points to **
3691 -- plus fields for binary operator
3692 -- plus fields for expression
3695 -- Sloc points to + (unary)
3696 -- plus fields for unary operator
3697 -- plus fields for expression
3700 -- Sloc points to - (unary)
3701 -- plus fields for unary operator
3702 -- plus fields for expression
3705 -- Sloc points to ABS
3706 -- plus fields for unary operator
3707 -- plus fields for expression
3710 -- Sloc points to NOT
3711 -- plus fields for unary operator
3712 -- plus fields for expression
3714 -- See also shift operators in section B.2
3716 -- Note on fixed-point operations passed to Gigi: For adding operators,
3717 -- the semantics is to treat these simply as integer operations, with
3718 -- the small values being ignored (the bounds are already stored in
3719 -- units of small, so that constraint checking works as usual). For the
3720 -- case of multiply/divide/rem/mod operations, Gigi will only see fixed
3721 -- point operands if the Treat_Fixed_As_Integer flag is set and will
3722 -- thus treat these nodes in identical manner, ignoring small values.
3724 --------------------------
3725 -- 4.6 Type Conversion --
3726 --------------------------
3728 -- TYPE_CONVERSION ::=
3729 -- SUBTYPE_MARK (EXPRESSION) | SUBTYPE_MARK (NAME)
3731 -- In the (NAME) case, the name is stored as the expression
3733 -- Note: the parser never generates a type conversion node, since it
3734 -- looks like an indexed component which is generated by preference.
3735 -- The semantic pass must correct this misidentification.
3737 -- Gigi handles conversions that involve no change in the root type,
3738 -- and also all conversions from integer to floating-point types.
3739 -- Conversions from floating-point to integer are only handled in
3740 -- the case where Float_Truncate flag set. Other conversions from
3741 -- floating-point to integer (involving rounding) and all conversions
3742 -- involving fixed-point types are handled by the expander.
3744 -- Sprint syntax if Float_Truncate set: X^(Y)
3745 -- Sprint syntax if Conversion_OK set X?(Y)
3746 -- Sprint syntax if both flags set X?^(Y)
3748 -- Note: If either the operand or result type is fixed-point, Gigi will
3749 -- only see a type conversion node with Conversion_OK set. The front end
3750 -- takes care of all handling of small's for fixed-point conversions.
3752 -- N_Type_Conversion
3753 -- Sloc points to first token of subtype mark
3754 -- Subtype_Mark (Node4)
3755 -- Expression (Node3)
3756 -- Do_Tag_Check (Flag13-Sem)
3757 -- Do_Length_Check (Flag4-Sem)
3758 -- Do_Overflow_Check (Flag17-Sem)
3759 -- Float_Truncate (Flag11-Sem)
3760 -- Rounded_Result (Flag18-Sem)
3761 -- Conversion_OK (Flag14-Sem)
3762 -- plus fields for expression
3764 -- Note: if a range check is required, then the Do_Range_Check flag
3765 -- is set in the Expression with the check being done against the
3766 -- target type range (after the base type conversion, if any).
3768 -------------------------------
3769 -- 4.7 Qualified Expression --
3770 -------------------------------
3772 -- QUALIFIED_EXPRESSION ::=
3773 -- SUBTYPE_MARK ' (EXPRESSION) | SUBTYPE_MARK ' AGGREGATE
3775 -- Note: the parentheses in the (EXPRESSION) case are deemed to enclose
3776 -- the expression, so the Expression field of this node always points
3777 -- to a parenthesized expression in this case (i.e. Paren_Count will
3778 -- always be non-zero for the referenced expression if it is not an
3781 -- N_Qualified_Expression
3782 -- Sloc points to apostrophe
3783 -- Subtype_Mark (Node4)
3784 -- Expression (Node3) expression or aggregate
3785 -- plus fields for expression
3787 --------------------
3789 --------------------
3792 -- new [NULL_EXCLUSION] SUBTYPE_INDICATION | new QUALIFIED_EXPRESSION
3794 -- Sprint syntax (when storage pool present)
3795 -- new xxx (storage_pool = pool)
3798 -- Sloc points to NEW
3799 -- Expression (Node3) subtype indication or qualified expression
3800 -- Storage_Pool (Node1-Sem)
3801 -- Procedure_To_Call (Node2-Sem)
3802 -- Coextensions (Elist4-Sem)
3803 -- Null_Exclusion_Present (Flag11)
3804 -- No_Initialization (Flag13-Sem)
3805 -- Is_Static_Coextension (Flag14-Sem)
3806 -- Do_Storage_Check (Flag17-Sem)
3807 -- Is_Dynamic_Coextension (Flag18-Sem)
3808 -- plus fields for expression
3810 -- Note: like all nodes, the N_Allocator has the Comes_From_Source flag.
3811 -- This flag has a special function in conjunction with the restriction
3812 -- No_Implicit_Heap_Allocations, which will be triggered if this flag
3813 -- is not set. This means that if a source allocator is replaced with
3814 -- a constructed allocator, the Comes_From_Source flag should be copied
3815 -- to the newly created allocator.
3817 ---------------------------------
3818 -- 5.1 Sequence Of Statements --
3819 ---------------------------------
3821 -- SEQUENCE_OF_STATEMENTS ::= STATEMENT {STATEMENT}
3823 -- Note: Although the parser will not accept a declaration as a
3824 -- statement, the semantic analyzer may insert declarations (e.g.
3825 -- declarations of implicit types needed for execution of other
3826 -- statements) into a sequence of statements, so the code generator
3827 -- should be prepared to accept a declaration where a statement is
3828 -- expected. Note also that pragmas can appear as statements.
3830 --------------------
3832 --------------------
3835 -- {LABEL} SIMPLE_STATEMENT | {LABEL} COMPOUND_STATEMENT
3837 -- There is no explicit node in the tree for a statement. Instead, the
3838 -- individual statement appears directly. Labels are treated as a
3839 -- kind of statement, i.e. they are linked into a statement list at
3840 -- the point they appear, so the labeled statement appears following
3841 -- the label or labels in the statement list.
3843 ---------------------------
3844 -- 5.1 Simple Statement --
3845 ---------------------------
3847 -- SIMPLE_STATEMENT ::= NULL_STATEMENT
3848 -- | ASSIGNMENT_STATEMENT | EXIT_STATEMENT
3849 -- | GOTO_STATEMENT | PROCEDURE_CALL_STATEMENT
3850 -- | SIMPLE_RETURN_STATEMENT | ENTRY_CALL_STATEMENT
3851 -- | REQUEUE_STATEMENT | DELAY_STATEMENT
3852 -- | ABORT_STATEMENT | RAISE_STATEMENT
3855 -----------------------------
3856 -- 5.1 Compound Statement --
3857 -----------------------------
3859 -- COMPOUND_STATEMENT ::=
3860 -- IF_STATEMENT | CASE_STATEMENT
3861 -- | LOOP_STATEMENT | BLOCK_STATEMENT
3862 -- | EXTENDED_RETURN_STATEMENT
3863 -- | ACCEPT_STATEMENT | SELECT_STATEMENT
3865 -------------------------
3866 -- 5.1 Null Statement --
3867 -------------------------
3869 -- NULL_STATEMENT ::= null;
3872 -- Sloc points to NULL
3878 -- LABEL ::= <<label_STATEMENT_IDENTIFIER>>
3880 -- Note that the occurrence of a label is not a defining identifier,
3881 -- but rather a referencing occurrence. The defining occurrence is
3882 -- in the implicit label declaration which occurs in the innermost
3886 -- Sloc points to <<
3887 -- Identifier (Node1) direct name of statement identifier
3888 -- Exception_Junk (Flag8-Sem)
3890 -------------------------------
3891 -- 5.1 Statement Identifier --
3892 -------------------------------
3894 -- STATEMENT_IDENTIFIER ::= DIRECT_NAME
3896 -- The IDENTIFIER of a STATEMENT_IDENTIFIER shall be an identifier
3897 -- (not an OPERATOR_SYMBOL)
3899 -------------------------------
3900 -- 5.2 Assignment Statement --
3901 -------------------------------
3903 -- ASSIGNMENT_STATEMENT ::=
3904 -- variable_NAME := EXPRESSION;
3906 -- N_Assignment_Statement
3907 -- Sloc points to :=
3909 -- Expression (Node3)
3910 -- Do_Tag_Check (Flag13-Sem)
3911 -- Do_Length_Check (Flag4-Sem)
3912 -- Forwards_OK (Flag5-Sem)
3913 -- Backwards_OK (Flag6-Sem)
3914 -- No_Ctrl_Actions (Flag7-Sem)
3915 -- Componentwise_Assignment (Flag14-Sem)
3917 -- Note: if a range check is required, then the Do_Range_Check flag
3918 -- is set in the Expression (right hand side), with the check being
3919 -- done against the type of the Name (left hand side).
3921 -- Note: the back end places some restrictions on the form of the
3922 -- Expression field. If the object being assigned to is Atomic, then
3923 -- the Expression may not have the form of an aggregate (since this
3924 -- might cause the back end to generate separate assignments). In this
3925 -- case the front end must generate an extra temporary and initialize
3926 -- this temporary as required (the temporary itself is not atomic).
3928 -----------------------
3929 -- 5.3 If Statement --
3930 -----------------------
3933 -- if CONDITION then
3934 -- SEQUENCE_OF_STATEMENTS
3935 -- {elsif CONDITION then
3936 -- SEQUENCE_OF_STATEMENTS}
3938 -- SEQUENCE_OF_STATEMENTS]
3941 -- Gigi restriction: This expander ensures that the type of the
3942 -- Condition fields is always Standard.Boolean, even if the type
3943 -- in the source is some non-standard boolean type.
3946 -- Sloc points to IF
3947 -- Condition (Node1)
3948 -- Then_Statements (List2)
3949 -- Elsif_Parts (List3) (set to No_List if none present)
3950 -- Else_Statements (List4) (set to No_List if no else part present)
3951 -- End_Span (Uint5) (set to No_Uint if expander generated)
3954 -- Sloc points to ELSIF
3955 -- Condition (Node1)
3956 -- Then_Statements (List2)
3957 -- Condition_Actions (List3-Sem)
3959 --------------------
3961 --------------------
3963 -- CONDITION ::= boolean_EXPRESSION
3965 -------------------------
3966 -- 5.4 Case Statement --
3967 -------------------------
3969 -- CASE_STATEMENT ::=
3970 -- case EXPRESSION is
3971 -- CASE_STATEMENT_ALTERNATIVE
3972 -- {CASE_STATEMENT_ALTERNATIVE}
3975 -- Note: the Alternatives can contain pragmas. These only occur at
3976 -- the start of the list, since any pragmas occurring after the first
3977 -- alternative are absorbed into the corresponding statement sequence.
3980 -- Sloc points to CASE
3981 -- Expression (Node3)
3982 -- Alternatives (List4)
3983 -- End_Span (Uint5) (set to No_Uint if expander generated)
3985 -------------------------------------
3986 -- 5.4 Case Statement Alternative --
3987 -------------------------------------
3989 -- CASE_STATEMENT_ALTERNATIVE ::=
3990 -- when DISCRETE_CHOICE_LIST =>
3991 -- SEQUENCE_OF_STATEMENTS
3993 -- N_Case_Statement_Alternative
3994 -- Sloc points to WHEN
3995 -- Discrete_Choices (List4)
3996 -- Statements (List3)
3998 -------------------------
3999 -- 5.5 Loop Statement --
4000 -------------------------
4002 -- LOOP_STATEMENT ::=
4003 -- [loop_STATEMENT_IDENTIFIER :]
4004 -- [ITERATION_SCHEME] loop
4005 -- SEQUENCE_OF_STATEMENTS
4006 -- end loop [loop_IDENTIFIER];
4008 -- Note: The occurrence of a loop label is not a defining identifier
4009 -- but rather a referencing occurrence. The defining occurrence is in
4010 -- the implicit label declaration which occurs in the innermost
4013 -- Note: there is always a loop statement identifier present in
4014 -- the tree, even if none was given in the source. In the case where
4015 -- no loop identifier is given in the source, the parser creates
4016 -- a name of the form _Loop_n, where n is a decimal integer (the
4017 -- two underlines ensure that the loop names created in this manner
4018 -- do not conflict with any user defined identifiers), and the flag
4019 -- Has_Created_Identifier is set to True. The only exception to the
4020 -- rule that all loop statement nodes have identifiers occurs for
4021 -- loops constructed by the expander, and the semantic analyzer will
4022 -- create and supply dummy loop identifiers in these cases.
4025 -- Sloc points to LOOP
4026 -- Identifier (Node1) loop identifier (set to Empty if no identifier)
4027 -- Iteration_Scheme (Node2) (set to Empty if no iteration scheme)
4028 -- Statements (List3)
4029 -- End_Label (Node4)
4030 -- Has_Created_Identifier (Flag15)
4031 -- Is_Null_Loop (Flag16)
4032 -- Suppress_Loop_Warnings (Flag17)
4034 --------------------------
4035 -- 5.5 Iteration Scheme --
4036 --------------------------
4038 -- ITERATION_SCHEME ::=
4039 -- while CONDITION | for LOOP_PARAMETER_SPECIFICATION
4041 -- Gigi restriction: This expander ensures that the type of the
4042 -- Condition field is always Standard.Boolean, even if the type
4043 -- in the source is some non-standard boolean type.
4045 -- N_Iteration_Scheme
4046 -- Sloc points to WHILE or FOR
4047 -- Condition (Node1) (set to Empty if FOR case)
4048 -- Condition_Actions (List3-Sem)
4049 -- Loop_Parameter_Specification (Node4) (set to Empty if WHILE case)
4051 ---------------------------------------
4052 -- 5.5 Loop parameter specification --
4053 ---------------------------------------
4055 -- LOOP_PARAMETER_SPECIFICATION ::=
4056 -- DEFINING_IDENTIFIER in [reverse] DISCRETE_SUBTYPE_DEFINITION
4058 -- N_Loop_Parameter_Specification
4059 -- Sloc points to first identifier
4060 -- Defining_Identifier (Node1)
4061 -- Reverse_Present (Flag15)
4062 -- Discrete_Subtype_Definition (Node4)
4064 --------------------------
4065 -- 5.6 Block Statement --
4066 --------------------------
4068 -- BLOCK_STATEMENT ::=
4069 -- [block_STATEMENT_IDENTIFIER:]
4071 -- DECLARATIVE_PART]
4073 -- HANDLED_SEQUENCE_OF_STATEMENTS
4074 -- end [block_IDENTIFIER];
4076 -- Note that the occurrence of a block identifier is not a defining
4077 -- identifier, but rather a referencing occurrence. The defining
4078 -- occurrence is an E_Block entity declared by the implicit label
4079 -- declaration which occurs in the innermost enclosing block statement
4080 -- or body; the block identifier denotes that E_Block.
4082 -- For block statements that come from source code, there is always a
4083 -- block statement identifier present in the tree, denoting an
4084 -- E_Block. In the case where no block identifier is given in the
4085 -- source, the parser creates a name of the form B_n, where n is a
4086 -- decimal integer, and the flag Has_Created_Identifier is set to
4087 -- True. Blocks constructed by the expander usually have no identifier,
4088 -- and no corresponding entity.
4090 -- Note: the block statement created for an extended return statement
4091 -- has an entity, and this entity is an E_Return_Statement, rather than
4092 -- the usual E_Block.
4094 -- Note: Exception_Junk is set for the wrapping blocks created during
4095 -- local raise optimization (Exp_Ch11.Expand_Local_Exception_Handlers).
4097 -- N_Block_Statement
4098 -- Sloc points to DECLARE or BEGIN
4099 -- Identifier (Node1) block direct name (set to Empty if not present)
4100 -- Declarations (List2) (set to No_List if no DECLARE part)
4101 -- Handled_Statement_Sequence (Node4)
4102 -- Is_Task_Master (Flag5-Sem)
4103 -- Activation_Chain_Entity (Node3-Sem)
4104 -- Has_Created_Identifier (Flag15)
4105 -- Is_Task_Allocation_Block (Flag6)
4106 -- Is_Asynchronous_Call_Block (Flag7)
4107 -- Exception_Junk (Flag8-Sem)
4109 -------------------------
4110 -- 5.7 Exit Statement --
4111 -------------------------
4113 -- EXIT_STATEMENT ::= exit [loop_NAME] [when CONDITION];
4115 -- Gigi restriction: This expander ensures that the type of the
4116 -- Condition field is always Standard.Boolean, even if the type
4117 -- in the source is some non-standard boolean type.
4120 -- Sloc points to EXIT
4121 -- Name (Node2) (set to Empty if no loop name present)
4122 -- Condition (Node1) (set to Empty if no when part present)
4124 -------------------------
4125 -- 5.9 Goto Statement --
4126 -------------------------
4128 -- GOTO_STATEMENT ::= goto label_NAME;
4131 -- Sloc points to GOTO
4133 -- Exception_Junk (Flag8-Sem)
4135 ---------------------------------
4136 -- 6.1 Subprogram Declaration --
4137 ---------------------------------
4139 -- SUBPROGRAM_DECLARATION ::= SUBPROGRAM_SPECIFICATION;
4141 -- N_Subprogram_Declaration
4142 -- Sloc points to FUNCTION or PROCEDURE
4143 -- Specification (Node1)
4144 -- Body_To_Inline (Node3-Sem)
4145 -- Corresponding_Body (Node5-Sem)
4146 -- Parent_Spec (Node4-Sem)
4148 ------------------------------------------
4149 -- 6.1 Abstract Subprogram Declaration --
4150 ------------------------------------------
4152 -- ABSTRACT_SUBPROGRAM_DECLARATION ::=
4153 -- SUBPROGRAM_SPECIFICATION is abstract;
4155 -- N_Abstract_Subprogram_Declaration
4156 -- Sloc points to ABSTRACT
4157 -- Specification (Node1)
4159 -----------------------------------
4160 -- 6.1 Subprogram Specification --
4161 -----------------------------------
4163 -- SUBPROGRAM_SPECIFICATION ::=
4164 -- [[not] overriding]
4165 -- procedure DEFINING_PROGRAM_UNIT_NAME PARAMETER_PROFILE
4166 -- | [[not] overriding]
4167 -- function DEFINING_DESIGNATOR PARAMETER_AND_RESULT_PROFILE
4169 -- Note: there are no separate nodes for the profiles, instead the
4170 -- information appears directly in the following nodes.
4172 -- N_Function_Specification
4173 -- Sloc points to FUNCTION
4174 -- Defining_Unit_Name (Node1) (the designator)
4175 -- Elaboration_Boolean (Node2-Sem)
4176 -- Parameter_Specifications (List3) (set to No_List if no formal part)
4177 -- Null_Exclusion_Present (Flag11)
4178 -- Result_Definition (Node4) for result subtype
4179 -- Generic_Parent (Node5-Sem)
4180 -- Must_Override (Flag14) set if overriding indicator present
4181 -- Must_Not_Override (Flag15) set if not_overriding indicator present
4183 -- N_Procedure_Specification
4184 -- Sloc points to PROCEDURE
4185 -- Defining_Unit_Name (Node1)
4186 -- Elaboration_Boolean (Node2-Sem)
4187 -- Parameter_Specifications (List3) (set to No_List if no formal part)
4188 -- Generic_Parent (Node5-Sem)
4189 -- Null_Present (Flag13) set for null procedure case (Ada 2005 feature)
4190 -- Must_Override (Flag14) set if overriding indicator present
4191 -- Must_Not_Override (Flag15) set if not_overriding indicator present
4193 -- Note: overriding indicator is an Ada 2005 feature
4195 ---------------------
4196 -- 6.1 Designator --
4197 ---------------------
4200 -- [PARENT_UNIT_NAME .] IDENTIFIER | OPERATOR_SYMBOL
4202 -- Designators that are simply identifiers or operator symbols appear
4203 -- directly in the tree in this form. The following node is used only
4204 -- in the case where the designator has a parent unit name component.
4207 -- Sloc points to period
4208 -- Name (Node2) holds the parent unit name. Note that this is always
4209 -- non-Empty, since this node is only used for the case where a
4210 -- parent library unit package name is present.
4211 -- Identifier (Node1)
4213 -- Note that the identifier can also be an operator symbol here
4215 ------------------------------
4216 -- 6.1 Defining Designator --
4217 ------------------------------
4219 -- DEFINING_DESIGNATOR ::=
4220 -- DEFINING_PROGRAM_UNIT_NAME | DEFINING_OPERATOR_SYMBOL
4222 -------------------------------------
4223 -- 6.1 Defining Program Unit Name --
4224 -------------------------------------
4226 -- DEFINING_PROGRAM_UNIT_NAME ::=
4227 -- [PARENT_UNIT_NAME .] DEFINING_IDENTIFIER
4229 -- The parent unit name is present only in the case of a child unit
4230 -- name (permissible only for Ada 95 for a library level unit, i.e.
4231 -- a unit at scope level one). If no such name is present, the defining
4232 -- program unit name is represented simply as the defining identifier.
4233 -- In the child unit case, the following node is used to represent the
4236 -- N_Defining_Program_Unit_Name
4237 -- Sloc points to period
4238 -- Name (Node2) holds the parent unit name. Note that this is always
4239 -- non-Empty, since this node is only used for the case where a
4240 -- parent unit name is present.
4241 -- Defining_Identifier (Node1)
4243 --------------------------
4244 -- 6.1 Operator Symbol --
4245 --------------------------
4247 -- OPERATOR_SYMBOL ::= STRING_LITERAL
4249 -- Note: the fields of the N_Operator_Symbol node are laid out to
4250 -- match the corresponding fields of an N_Character_Literal node. This
4251 -- allows easy conversion of the operator symbol node into a character
4252 -- literal node in the case where a string constant of the form of an
4253 -- operator symbol is scanned out as such, but turns out semantically
4254 -- to be a string literal that is not an operator. For details see
4255 -- Sinfo.CN.Change_Operator_Symbol_To_String_Literal.
4257 -- N_Operator_Symbol
4258 -- Sloc points to literal
4259 -- Chars (Name1) contains the Name_Id for the operator symbol
4260 -- Strval (Str3) Id of string value. This is used if the operator
4261 -- symbol turns out to be a normal string after all.
4262 -- Entity (Node4-Sem)
4263 -- Associated_Node (Node4-Sem)
4264 -- Has_Private_View (Flag11-Sem) set in generic units.
4265 -- Etype (Node5-Sem)
4267 -- Note: the Strval field may be set to No_String for generated
4268 -- operator symbols that are known not to be string literals
4271 -----------------------------------
4272 -- 6.1 Defining Operator Symbol --
4273 -----------------------------------
4275 -- DEFINING_OPERATOR_SYMBOL ::= OPERATOR_SYMBOL
4277 -- A defining operator symbol is an entity, which has additional
4278 -- fields depending on the setting of the Ekind field. These
4279 -- additional fields are defined (and access subprograms declared)
4280 -- in package Einfo.
4282 -- Note: N_Defining_Operator_Symbol is an extended node whose fields
4283 -- are deliberately layed out to match the layout of fields in an
4284 -- ordinary N_Operator_Symbol node allowing for easy alteration of
4285 -- an operator symbol node into a defining operator symbol node.
4286 -- See Sinfo.CN.Change_Operator_Symbol_To_Defining_Operator_Symbol
4287 -- for further details.
4289 -- N_Defining_Operator_Symbol
4290 -- Sloc points to literal
4291 -- Chars (Name1) contains the Name_Id for the operator symbol
4292 -- Next_Entity (Node2-Sem)
4293 -- Scope (Node3-Sem)
4294 -- Etype (Node5-Sem)
4296 ----------------------------
4297 -- 6.1 Parameter Profile --
4298 ----------------------------
4300 -- PARAMETER_PROFILE ::= [FORMAL_PART]
4302 ---------------------------------------
4303 -- 6.1 Parameter and Result Profile --
4304 ---------------------------------------
4306 -- PARAMETER_AND_RESULT_PROFILE ::=
4307 -- [FORMAL_PART] return [NULL_EXCLUSION] SUBTYPE_MARK
4308 -- | [FORMAL_PART] return ACCESS_DEFINITION
4310 -- There is no explicit node in the tree for a parameter and result
4311 -- profile. Instead the information appears directly in the parent.
4313 ----------------------
4314 -- 6.1 Formal part --
4315 ----------------------
4318 -- (PARAMETER_SPECIFICATION {; PARAMETER_SPECIFICATION})
4320 ----------------------------------
4321 -- 6.1 Parameter specification --
4322 ----------------------------------
4324 -- PARAMETER_SPECIFICATION ::=
4325 -- DEFINING_IDENTIFIER_LIST : MODE [NULL_EXCLUSION] SUBTYPE_MARK
4326 -- [:= DEFAULT_EXPRESSION]
4327 -- | DEFINING_IDENTIFIER_LIST : ACCESS_DEFINITION
4328 -- [:= DEFAULT_EXPRESSION]
4330 -- Although the syntax allows multiple identifiers in the list, the
4331 -- semantics is as though successive specifications were given with
4332 -- identical type definition and expression components. To simplify
4333 -- semantic processing, the parser represents a multiple declaration
4334 -- case as a sequence of single Specifications, using the More_Ids and
4335 -- Prev_Ids flags to preserve the original source form as described
4336 -- in the section on "Handling of Defining Identifier Lists".
4338 -- N_Parameter_Specification
4339 -- Sloc points to first identifier
4340 -- Defining_Identifier (Node1)
4341 -- In_Present (Flag15)
4342 -- Out_Present (Flag17)
4343 -- Null_Exclusion_Present (Flag11)
4344 -- Parameter_Type (Node2) subtype mark or access definition
4345 -- Expression (Node3) (set to Empty if no default expression present)
4346 -- Do_Accessibility_Check (Flag13-Sem)
4347 -- More_Ids (Flag5) (set to False if no more identifiers in list)
4348 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
4349 -- Default_Expression (Node5-Sem)
4355 -- MODE ::= [in] | in out | out
4357 -- There is no explicit node in the tree for the Mode. Instead the
4358 -- In_Present and Out_Present flags are set in the parent node to
4359 -- record the presence of keywords specifying the mode.
4361 --------------------------
4362 -- 6.3 Subprogram Body --
4363 --------------------------
4365 -- SUBPROGRAM_BODY ::=
4366 -- SUBPROGRAM_SPECIFICATION is
4369 -- HANDLED_SEQUENCE_OF_STATEMENTS
4370 -- end [DESIGNATOR];
4372 -- N_Subprogram_Body
4373 -- Sloc points to FUNCTION or PROCEDURE
4374 -- Specification (Node1)
4375 -- Declarations (List2)
4376 -- Handled_Statement_Sequence (Node4)
4377 -- Activation_Chain_Entity (Node3-Sem)
4378 -- Corresponding_Spec (Node5-Sem)
4379 -- Acts_As_Spec (Flag4-Sem)
4380 -- Bad_Is_Detected (Flag15) used only by parser
4381 -- Do_Storage_Check (Flag17-Sem)
4382 -- Has_Priority_Pragma (Flag6-Sem)
4383 -- Is_Protected_Subprogram_Body (Flag7-Sem)
4384 -- Is_Entry_Barrier_Function (Flag8-Sem)
4385 -- Is_Task_Master (Flag5-Sem)
4386 -- Was_Originally_Stub (Flag13-Sem)
4387 -- Has_Relative_Deadline_Pragma (Flag9-Sem)
4389 -----------------------------------
4390 -- 6.4 Procedure Call Statement --
4391 -----------------------------------
4393 -- PROCEDURE_CALL_STATEMENT ::=
4394 -- procedure_NAME; | procedure_PREFIX ACTUAL_PARAMETER_PART;
4396 -- Note: the reason that a procedure call has expression fields is
4397 -- that it semantically resembles an expression, e.g. overloading is
4398 -- allowed and a type is concocted for semantic processing purposes.
4399 -- Certain of these fields, such as Parens are not relevant, but it
4400 -- is easier to just supply all of them together!
4402 -- N_Procedure_Call_Statement
4403 -- Sloc points to first token of name or prefix
4404 -- Name (Node2) stores name or prefix
4405 -- Parameter_Associations (List3) (set to No_List if no
4406 -- actual parameter part)
4407 -- First_Named_Actual (Node4-Sem)
4408 -- Controlling_Argument (Node1-Sem) (set to Empty if not dispatching)
4409 -- Do_Tag_Check (Flag13-Sem)
4410 -- No_Elaboration_Check (Flag14-Sem)
4411 -- Parameter_List_Truncated (Flag17-Sem)
4412 -- ABE_Is_Certain (Flag18-Sem)
4413 -- plus fields for expression
4415 -- If any IN parameter requires a range check, then the corresponding
4416 -- argument expression has the Do_Range_Check flag set, and the range
4417 -- check is done against the formal type. Note that this argument
4418 -- expression may appear directly in the Parameter_Associations list,
4419 -- or may be a descendent of an N_Parameter_Association node that
4420 -- appears in this list.
4422 ------------------------
4423 -- 6.4 Function Call --
4424 ------------------------
4426 -- FUNCTION_CALL ::=
4427 -- function_NAME | function_PREFIX ACTUAL_PARAMETER_PART
4429 -- Note: the parser may generate an indexed component node or simply
4430 -- a name node instead of a function call node. The semantic pass must
4431 -- correct this misidentification.
4434 -- Sloc points to first token of name or prefix
4435 -- Name (Node2) stores name or prefix
4436 -- Parameter_Associations (List3) (set to No_List if no
4437 -- actual parameter part)
4438 -- First_Named_Actual (Node4-Sem)
4439 -- Controlling_Argument (Node1-Sem) (set to Empty if not dispatching)
4440 -- Is_Expanded_Build_In_Place_Call (Flag11-Sem)
4441 -- Do_Tag_Check (Flag13-Sem)
4442 -- No_Elaboration_Check (Flag14-Sem)
4443 -- Parameter_List_Truncated (Flag17-Sem)
4444 -- ABE_Is_Certain (Flag18-Sem)
4445 -- plus fields for expression
4447 --------------------------------
4448 -- 6.4 Actual Parameter Part --
4449 --------------------------------
4451 -- ACTUAL_PARAMETER_PART ::=
4452 -- (PARAMETER_ASSOCIATION {,PARAMETER_ASSOCIATION})
4454 --------------------------------
4455 -- 6.4 Parameter Association --
4456 --------------------------------
4458 -- PARAMETER_ASSOCIATION ::=
4459 -- [formal_parameter_SELECTOR_NAME =>] EXPLICIT_ACTUAL_PARAMETER
4461 -- Note: the N_Parameter_Association node is built only if a formal
4462 -- parameter selector name is present, otherwise the parameter
4463 -- association appears in the tree simply as the node for the
4464 -- explicit actual parameter.
4466 -- N_Parameter_Association
4467 -- Sloc points to formal parameter
4468 -- Selector_Name (Node2) (always non-Empty)
4469 -- Explicit_Actual_Parameter (Node3)
4470 -- Next_Named_Actual (Node4-Sem)
4471 -- Is_Accessibility_Actual (Flag13-Sem)
4473 ---------------------------
4474 -- 6.4 Actual Parameter --
4475 ---------------------------
4477 -- EXPLICIT_ACTUAL_PARAMETER ::= EXPRESSION | variable_NAME
4479 ---------------------------
4480 -- 6.5 Return Statement --
4481 ---------------------------
4483 -- RETURN_STATEMENT ::= return [EXPRESSION]; -- Ada 95
4485 -- In Ada 2005, we have:
4487 -- SIMPLE_RETURN_STATEMENT ::= return [EXPRESSION];
4489 -- EXTENDED_RETURN_STATEMENT ::=
4490 -- return DEFINING_IDENTIFIER : [aliased] RETURN_SUBTYPE_INDICATION
4491 -- [:= EXPRESSION] [do
4492 -- HANDLED_SEQUENCE_OF_STATEMENTS
4495 -- RETURN_SUBTYPE_INDICATION ::= SUBTYPE_INDICATION | ACCESS_DEFINITION
4497 -- So in Ada 2005, RETURN_STATEMENT is no longer a nonterminal, but
4498 -- "return statement" is defined in 6.5 to mean a
4499 -- SIMPLE_RETURN_STATEMENT or an EXTENDED_RETURN_STATEMENT.
4501 -- N_Return_Statement
4502 -- Sloc points to RETURN
4503 -- Return_Statement_Entity (Node5-Sem)
4504 -- Expression (Node3) (set to Empty if no expression present)
4505 -- Storage_Pool (Node1-Sem)
4506 -- Procedure_To_Call (Node2-Sem)
4507 -- Do_Tag_Check (Flag13-Sem)
4508 -- By_Ref (Flag5-Sem)
4509 -- Comes_From_Extended_Return_Statement (Flag18-Sem)
4511 -- N_Return_Statement represents a simple_return_statement, and is
4512 -- renamed to be N_Simple_Return_Statement below. Clients should refer
4513 -- to N_Simple_Return_Statement. We retain N_Return_Statement because
4514 -- that's how gigi knows it. See also renaming of Make_Return_Statement
4515 -- as Make_Simple_Return_Statement in Sem_Util.
4517 -- Note: Return_Statement_Entity points to an E_Return_Statement
4519 -- If a range check is required, then Do_Range_Check is set on the
4520 -- Expression. The check is against the return subtype of the function.
4522 -- N_Extended_Return_Statement
4523 -- Sloc points to RETURN
4524 -- Return_Statement_Entity (Node5-Sem)
4525 -- Return_Object_Declarations (List3)
4526 -- Handled_Statement_Sequence (Node4) (set to Empty if not present)
4527 -- Storage_Pool (Node1-Sem)
4528 -- Procedure_To_Call (Node2-Sem)
4529 -- Do_Tag_Check (Flag13-Sem)
4530 -- By_Ref (Flag5-Sem)
4532 -- Note: Return_Statement_Entity points to an E_Return_Statement.
4533 -- Note that Return_Object_Declarations is a list containing the
4534 -- N_Object_Declaration -- see comment on this field above.
4535 -- The declared object will have Is_Return_Object = True.
4536 -- There is no such syntactic category as return_object_declaration
4537 -- in the RM. Return_Object_Declarations represents this portion of
4538 -- the syntax for EXTENDED_RETURN_STATEMENT:
4539 -- DEFINING_IDENTIFIER : [aliased] RETURN_SUBTYPE_INDICATION
4542 -- There are two entities associated with an extended_return_statement:
4543 -- the Return_Statement_Entity represents the statement itself, and the
4544 -- Defining_Identifier of the Object_Declaration in
4545 -- Return_Object_Declarations represents the object being
4546 -- returned. N_Simple_Return_Statement has only the former.
4548 ------------------------------
4549 -- 7.1 Package Declaration --
4550 ------------------------------
4552 -- PACKAGE_DECLARATION ::= PACKAGE_SPECIFICATION;
4554 -- Note: the activation chain entity for a package spec is used for
4555 -- all tasks declared in the package spec, or in the package body.
4557 -- N_Package_Declaration
4558 -- Sloc points to PACKAGE
4559 -- Specification (Node1)
4560 -- Corresponding_Body (Node5-Sem)
4561 -- Parent_Spec (Node4-Sem)
4562 -- Activation_Chain_Entity (Node3-Sem)
4564 --------------------------------
4565 -- 7.1 Package Specification --
4566 --------------------------------
4568 -- PACKAGE_SPECIFICATION ::=
4569 -- package DEFINING_PROGRAM_UNIT_NAME is
4570 -- {BASIC_DECLARATIVE_ITEM}
4572 -- {BASIC_DECLARATIVE_ITEM}]
4573 -- end [[PARENT_UNIT_NAME .] IDENTIFIER]
4575 -- N_Package_Specification
4576 -- Sloc points to PACKAGE
4577 -- Defining_Unit_Name (Node1)
4578 -- Visible_Declarations (List2)
4579 -- Private_Declarations (List3) (set to No_List if no private
4581 -- End_Label (Node4)
4582 -- Generic_Parent (Node5-Sem)
4583 -- Limited_View_Installed (Flag18-Sem)
4585 -----------------------
4586 -- 7.1 Package Body --
4587 -----------------------
4590 -- package body DEFINING_PROGRAM_UNIT_NAME is
4593 -- HANDLED_SEQUENCE_OF_STATEMENTS]
4594 -- end [[PARENT_UNIT_NAME .] IDENTIFIER];
4597 -- Sloc points to PACKAGE
4598 -- Defining_Unit_Name (Node1)
4599 -- Declarations (List2)
4600 -- Handled_Statement_Sequence (Node4) (set to Empty if no HSS present)
4601 -- Corresponding_Spec (Node5-Sem)
4602 -- Was_Originally_Stub (Flag13-Sem)
4604 -- Note: if a source level package does not contain a handled sequence
4605 -- of statements, then the parser supplies a dummy one with a null
4606 -- sequence of statements. Comes_From_Source will be False in this
4607 -- constructed sequence. The reason we need this is for the End_Label
4608 -- field in the HSS.
4610 -----------------------------------
4611 -- 7.4 Private Type Declaration --
4612 -----------------------------------
4614 -- PRIVATE_TYPE_DECLARATION ::=
4615 -- type DEFINING_IDENTIFIER [DISCRIMINANT_PART]
4616 -- is [[abstract] tagged] [limited] private;
4618 -- Note: TAGGED is not permitted in Ada 83 mode
4620 -- N_Private_Type_Declaration
4621 -- Sloc points to TYPE
4622 -- Defining_Identifier (Node1)
4623 -- Discriminant_Specifications (List4) (set to No_List if no
4624 -- discriminant part)
4625 -- Unknown_Discriminants_Present (Flag13) set if (<>) discriminant
4626 -- Abstract_Present (Flag4)
4627 -- Tagged_Present (Flag15)
4628 -- Limited_Present (Flag17)
4630 ----------------------------------------
4631 -- 7.4 Private Extension Declaration --
4632 ----------------------------------------
4634 -- PRIVATE_EXTENSION_DECLARATION ::=
4635 -- type DEFINING_IDENTIFIER [DISCRIMINANT_PART] is
4636 -- [abstract] [limited | synchronized]
4637 -- new ancestor_SUBTYPE_INDICATION [and INTERFACE_LIST]
4640 -- Note: LIMITED, and private extension declarations are not allowed
4643 -- N_Private_Extension_Declaration
4644 -- Sloc points to TYPE
4645 -- Defining_Identifier (Node1)
4646 -- Discriminant_Specifications (List4) (set to No_List if no
4647 -- discriminant part)
4648 -- Unknown_Discriminants_Present (Flag13) set if (<>) discriminant
4649 -- Abstract_Present (Flag4)
4650 -- Limited_Present (Flag17)
4651 -- Synchronized_Present (Flag7)
4652 -- Subtype_Indication (Node5)
4653 -- Interface_List (List2) (set to No_List if none)
4655 ---------------------
4656 -- 8.4 Use Clause --
4657 ---------------------
4659 -- USE_CLAUSE ::= USE_PACKAGE_CLAUSE | USE_TYPE_CLAUSE
4661 -----------------------------
4662 -- 8.4 Use Package Clause --
4663 -----------------------------
4665 -- USE_PACKAGE_CLAUSE ::= use package_NAME {, package_NAME};
4667 -- N_Use_Package_Clause
4668 -- Sloc points to USE
4670 -- Next_Use_Clause (Node3-Sem)
4671 -- Hidden_By_Use_Clause (Elist4-Sem)
4673 --------------------------
4674 -- 8.4 Use Type Clause --
4675 --------------------------
4677 -- USE_TYPE_CLAUSE ::= use type SUBTYPE_MARK {, SUBTYPE_MARK};
4679 -- Note: use type clause is not permitted in Ada 83 mode
4681 -- N_Use_Type_Clause
4682 -- Sloc points to USE
4683 -- Subtype_Marks (List2)
4684 -- Next_Use_Clause (Node3-Sem)
4685 -- Hidden_By_Use_Clause (Elist4-Sem)
4687 -------------------------------
4688 -- 8.5 Renaming Declaration --
4689 -------------------------------
4691 -- RENAMING_DECLARATION ::=
4692 -- OBJECT_RENAMING_DECLARATION
4693 -- | EXCEPTION_RENAMING_DECLARATION
4694 -- | PACKAGE_RENAMING_DECLARATION
4695 -- | SUBPROGRAM_RENAMING_DECLARATION
4696 -- | GENERIC_RENAMING_DECLARATION
4698 --------------------------------------
4699 -- 8.5 Object Renaming Declaration --
4700 --------------------------------------
4702 -- OBJECT_RENAMING_DECLARATION ::=
4703 -- DEFINING_IDENTIFIER :
4704 -- [NULL_EXCLUSION] SUBTYPE_MARK renames object_NAME;
4705 -- | DEFINING_IDENTIFIER :
4706 -- ACCESS_DEFINITION renames object_NAME;
4708 -- Note: Access_Definition is an optional field that gives support to
4709 -- Ada 2005 (AI-230). The parser generates nodes that have either the
4710 -- Subtype_Indication field or else the Access_Definition field.
4712 -- N_Object_Renaming_Declaration
4713 -- Sloc points to first identifier
4714 -- Defining_Identifier (Node1)
4715 -- Null_Exclusion_Present (Flag11) (set to False if not present)
4716 -- Subtype_Mark (Node4) (set to Empty if not present)
4717 -- Access_Definition (Node3) (set to Empty if not present)
4719 -- Corresponding_Generic_Association (Node5-Sem)
4721 -----------------------------------------
4722 -- 8.5 Exception Renaming Declaration --
4723 -----------------------------------------
4725 -- EXCEPTION_RENAMING_DECLARATION ::=
4726 -- DEFINING_IDENTIFIER : exception renames exception_NAME;
4728 -- N_Exception_Renaming_Declaration
4729 -- Sloc points to first identifier
4730 -- Defining_Identifier (Node1)
4733 ---------------------------------------
4734 -- 8.5 Package Renaming Declaration --
4735 ---------------------------------------
4737 -- PACKAGE_RENAMING_DECLARATION ::=
4738 -- package DEFINING_PROGRAM_UNIT_NAME renames package_NAME;
4740 -- N_Package_Renaming_Declaration
4741 -- Sloc points to PACKAGE
4742 -- Defining_Unit_Name (Node1)
4744 -- Parent_Spec (Node4-Sem)
4746 ------------------------------------------
4747 -- 8.5 Subprogram Renaming Declaration --
4748 ------------------------------------------
4750 -- SUBPROGRAM_RENAMING_DECLARATION ::=
4751 -- SUBPROGRAM_SPECIFICATION renames callable_entity_NAME;
4753 -- N_Subprogram_Renaming_Declaration
4754 -- Sloc points to RENAMES
4755 -- Specification (Node1)
4757 -- Parent_Spec (Node4-Sem)
4758 -- Corresponding_Spec (Node5-Sem)
4759 -- Corresponding_Formal_Spec (Node3-Sem)
4760 -- From_Default (Flag6-Sem)
4762 -----------------------------------------
4763 -- 8.5.5 Generic Renaming Declaration --
4764 -----------------------------------------
4766 -- GENERIC_RENAMING_DECLARATION ::=
4767 -- generic package DEFINING_PROGRAM_UNIT_NAME
4768 -- renames generic_package_NAME
4769 -- | generic procedure DEFINING_PROGRAM_UNIT_NAME
4770 -- renames generic_procedure_NAME
4771 -- | generic function DEFINING_PROGRAM_UNIT_NAME
4772 -- renames generic_function_NAME
4774 -- N_Generic_Package_Renaming_Declaration
4775 -- Sloc points to GENERIC
4776 -- Defining_Unit_Name (Node1)
4778 -- Parent_Spec (Node4-Sem)
4780 -- N_Generic_Procedure_Renaming_Declaration
4781 -- Sloc points to GENERIC
4782 -- Defining_Unit_Name (Node1)
4784 -- Parent_Spec (Node4-Sem)
4786 -- N_Generic_Function_Renaming_Declaration
4787 -- Sloc points to GENERIC
4788 -- Defining_Unit_Name (Node1)
4790 -- Parent_Spec (Node4-Sem)
4792 --------------------------------
4793 -- 9.1 Task Type Declaration --
4794 --------------------------------
4796 -- TASK_TYPE_DECLARATION ::=
4797 -- task type DEFINING_IDENTIFIER [KNOWN_DISCRIMINANT_PART]
4798 -- [is [new INTERFACE_LIST with] TASK_DEFINITION];
4800 -- N_Task_Type_Declaration
4801 -- Sloc points to TASK
4802 -- Defining_Identifier (Node1)
4803 -- Discriminant_Specifications (List4) (set to No_List if no
4804 -- discriminant part)
4805 -- Interface_List (List2) (set to No_List if none)
4806 -- Task_Definition (Node3) (set to Empty if not present)
4807 -- Corresponding_Body (Node5-Sem)
4809 ----------------------------------
4810 -- 9.1 Single Task Declaration --
4811 ----------------------------------
4813 -- SINGLE_TASK_DECLARATION ::=
4814 -- task DEFINING_IDENTIFIER
4815 -- [is [new INTERFACE_LIST with] TASK_DEFINITION];
4817 -- N_Single_Task_Declaration
4818 -- Sloc points to TASK
4819 -- Defining_Identifier (Node1)
4820 -- Interface_List (List2) (set to No_List if none)
4821 -- Task_Definition (Node3) (set to Empty if not present)
4823 --------------------------
4824 -- 9.1 Task Definition --
4825 --------------------------
4827 -- TASK_DEFINITION ::=
4831 -- end [task_IDENTIFIER]
4833 -- Note: as a result of semantic analysis, the list of task items can
4834 -- include implicit type declarations resulting from entry families.
4836 -- N_Task_Definition
4837 -- Sloc points to first token of task definition
4838 -- Visible_Declarations (List2)
4839 -- Private_Declarations (List3) (set to No_List if no private part)
4840 -- End_Label (Node4)
4841 -- Has_Priority_Pragma (Flag6-Sem)
4842 -- Has_Storage_Size_Pragma (Flag5-Sem)
4843 -- Has_Task_Info_Pragma (Flag7-Sem)
4844 -- Has_Task_Name_Pragma (Flag8-Sem)
4845 -- Has_Relative_Deadline_Pragma (Flag9-Sem)
4847 --------------------
4849 --------------------
4851 -- TASK_ITEM ::= ENTRY_DECLARATION | REPRESENTATION_CLAUSE
4853 --------------------
4855 --------------------
4858 -- task body task_DEFINING_IDENTIFIER is
4861 -- HANDLED_SEQUENCE_OF_STATEMENTS
4862 -- end [task_IDENTIFIER];
4864 -- Gigi restriction: This node never appears
4867 -- Sloc points to TASK
4868 -- Defining_Identifier (Node1)
4869 -- Declarations (List2)
4870 -- Handled_Statement_Sequence (Node4)
4871 -- Is_Task_Master (Flag5-Sem)
4872 -- Activation_Chain_Entity (Node3-Sem)
4873 -- Corresponding_Spec (Node5-Sem)
4874 -- Was_Originally_Stub (Flag13-Sem)
4876 -------------------------------------
4877 -- 9.4 Protected Type Declaration --
4878 -------------------------------------
4880 -- PROTECTED_TYPE_DECLARATION ::=
4881 -- protected type DEFINING_IDENTIFIER [KNOWN_DISCRIMINANT_PART]
4882 -- is [new INTERFACE_LIST with] PROTECTED_DEFINITION;
4884 -- Note: protected type declarations are not permitted in Ada 83 mode
4886 -- N_Protected_Type_Declaration
4887 -- Sloc points to PROTECTED
4888 -- Defining_Identifier (Node1)
4889 -- Discriminant_Specifications (List4) (set to No_List if no
4890 -- discriminant part)
4891 -- Interface_List (List2) (set to No_List if none)
4892 -- Protected_Definition (Node3)
4893 -- Corresponding_Body (Node5-Sem)
4895 ---------------------------------------
4896 -- 9.4 Single Protected Declaration --
4897 ---------------------------------------
4899 -- SINGLE_PROTECTED_DECLARATION ::=
4900 -- protected DEFINING_IDENTIFIER
4901 -- is [new INTERFACE_LIST with] PROTECTED_DEFINITION;
4903 -- Note: single protected declarations are not allowed in Ada 83 mode
4905 -- N_Single_Protected_Declaration
4906 -- Sloc points to PROTECTED
4907 -- Defining_Identifier (Node1)
4908 -- Interface_List (List2) (set to No_List if none)
4909 -- Protected_Definition (Node3)
4911 -------------------------------
4912 -- 9.4 Protected Definition --
4913 -------------------------------
4915 -- PROTECTED_DEFINITION ::=
4916 -- {PROTECTED_OPERATION_DECLARATION}
4918 -- {PROTECTED_ELEMENT_DECLARATION}]
4919 -- end [protected_IDENTIFIER]
4921 -- N_Protected_Definition
4922 -- Sloc points to first token of protected definition
4923 -- Visible_Declarations (List2)
4924 -- Private_Declarations (List3) (set to No_List if no private part)
4925 -- End_Label (Node4)
4926 -- Has_Priority_Pragma (Flag6-Sem)
4928 ------------------------------------------
4929 -- 9.4 Protected Operation Declaration --
4930 ------------------------------------------
4932 -- PROTECTED_OPERATION_DECLARATION ::=
4933 -- SUBPROGRAM_DECLARATION
4934 -- | ENTRY_DECLARATION
4935 -- | REPRESENTATION_CLAUSE
4937 ----------------------------------------
4938 -- 9.4 Protected Element Declaration --
4939 ----------------------------------------
4941 -- PROTECTED_ELEMENT_DECLARATION ::=
4942 -- PROTECTED_OPERATION_DECLARATION | COMPONENT_DECLARATION
4944 -------------------------
4945 -- 9.4 Protected Body --
4946 -------------------------
4948 -- PROTECTED_BODY ::=
4949 -- protected body DEFINING_IDENTIFIER is
4950 -- {PROTECTED_OPERATION_ITEM}
4951 -- end [protected_IDENTIFIER];
4953 -- Note: protected bodies are not allowed in Ada 83 mode
4955 -- Gigi restriction: This node never appears
4958 -- Sloc points to PROTECTED
4959 -- Defining_Identifier (Node1)
4960 -- Declarations (List2) protected operation items (and pragmas)
4961 -- End_Label (Node4)
4962 -- Corresponding_Spec (Node5-Sem)
4963 -- Was_Originally_Stub (Flag13-Sem)
4965 -----------------------------------
4966 -- 9.4 Protected Operation Item --
4967 -----------------------------------
4969 -- PROTECTED_OPERATION_ITEM ::=
4970 -- SUBPROGRAM_DECLARATION
4971 -- | SUBPROGRAM_BODY
4973 -- | REPRESENTATION_CLAUSE
4975 ------------------------------
4976 -- 9.5.2 Entry Declaration --
4977 ------------------------------
4979 -- ENTRY_DECLARATION ::=
4980 -- [[not] overriding]
4981 -- entry DEFINING_IDENTIFIER
4982 -- [(DISCRETE_SUBTYPE_DEFINITION)] PARAMETER_PROFILE;
4984 -- N_Entry_Declaration
4985 -- Sloc points to ENTRY
4986 -- Defining_Identifier (Node1)
4987 -- Discrete_Subtype_Definition (Node4) (set to Empty if not present)
4988 -- Parameter_Specifications (List3) (set to No_List if no formal part)
4989 -- Corresponding_Body (Node5-Sem)
4990 -- Must_Override (Flag14) set if overriding indicator present
4991 -- Must_Not_Override (Flag15) set if not_overriding indicator present
4993 -- Note: overriding indicator is an Ada 2005 feature
4995 -----------------------------
4996 -- 9.5.2 Accept statement --
4997 -----------------------------
4999 -- ACCEPT_STATEMENT ::=
5000 -- accept entry_DIRECT_NAME
5001 -- [(ENTRY_INDEX)] PARAMETER_PROFILE [do
5002 -- HANDLED_SEQUENCE_OF_STATEMENTS
5003 -- end [entry_IDENTIFIER]];
5005 -- Gigi restriction: This node never appears
5007 -- Note: there are no explicit declarations allowed in an accept
5008 -- statement. However, the implicit declarations for any statement
5009 -- identifiers (labels and block/loop identifiers) are declarations
5010 -- that belong logically to the accept statement, and that is why
5011 -- there is a Declarations field in this node.
5013 -- N_Accept_Statement
5014 -- Sloc points to ACCEPT
5015 -- Entry_Direct_Name (Node1)
5016 -- Entry_Index (Node5) (set to Empty if not present)
5017 -- Parameter_Specifications (List3) (set to No_List if no formal part)
5018 -- Handled_Statement_Sequence (Node4)
5019 -- Declarations (List2) (set to No_List if no declarations)
5021 ------------------------
5022 -- 9.5.2 Entry Index --
5023 ------------------------
5025 -- ENTRY_INDEX ::= EXPRESSION
5027 -----------------------
5028 -- 9.5.2 Entry Body --
5029 -----------------------
5032 -- entry DEFINING_IDENTIFIER ENTRY_BODY_FORMAL_PART ENTRY_BARRIER is
5035 -- HANDLED_SEQUENCE_OF_STATEMENTS
5036 -- end [entry_IDENTIFIER];
5038 -- ENTRY_BARRIER ::= when CONDITION
5040 -- Note: we store the CONDITION of the ENTRY_BARRIER in the node for
5041 -- the ENTRY_BODY_FORMAL_PART to avoid the N_Entry_Body node getting
5042 -- too full (it would otherwise have too many fields)
5044 -- Gigi restriction: This node never appears
5047 -- Sloc points to ENTRY
5048 -- Defining_Identifier (Node1)
5049 -- Entry_Body_Formal_Part (Node5)
5050 -- Declarations (List2)
5051 -- Handled_Statement_Sequence (Node4)
5052 -- Activation_Chain_Entity (Node3-Sem)
5054 -----------------------------------
5055 -- 9.5.2 Entry Body Formal Part --
5056 -----------------------------------
5058 -- ENTRY_BODY_FORMAL_PART ::=
5059 -- [(ENTRY_INDEX_SPECIFICATION)] PARAMETER_PROFILE
5061 -- Note that an entry body formal part node is present even if it is
5062 -- empty. This reflects the grammar, in which it is the components of
5063 -- the entry body formal part that are optional, not the entry body
5064 -- formal part itself. Also this means that the barrier condition
5065 -- always has somewhere to be stored.
5067 -- Gigi restriction: This node never appears
5069 -- N_Entry_Body_Formal_Part
5070 -- Sloc points to first token
5071 -- Entry_Index_Specification (Node4) (set to Empty if not present)
5072 -- Parameter_Specifications (List3) (set to No_List if no formal part)
5073 -- Condition (Node1) from entry barrier of entry body
5075 --------------------------
5076 -- 9.5.2 Entry Barrier --
5077 --------------------------
5079 -- ENTRY_BARRIER ::= when CONDITION
5081 --------------------------------------
5082 -- 9.5.2 Entry Index Specification --
5083 --------------------------------------
5085 -- ENTRY_INDEX_SPECIFICATION ::=
5086 -- for DEFINING_IDENTIFIER in DISCRETE_SUBTYPE_DEFINITION
5088 -- Gigi restriction: This node never appears
5090 -- N_Entry_Index_Specification
5091 -- Sloc points to FOR
5092 -- Defining_Identifier (Node1)
5093 -- Discrete_Subtype_Definition (Node4)
5095 ---------------------------------
5096 -- 9.5.3 Entry Call Statement --
5097 ---------------------------------
5099 -- ENTRY_CALL_STATEMENT ::= entry_NAME [ACTUAL_PARAMETER_PART];
5101 -- The parser may generate a procedure call for this construct. The
5102 -- semantic pass must correct this misidentification where needed.
5104 -- Gigi restriction: This node never appears
5106 -- N_Entry_Call_Statement
5107 -- Sloc points to first token of name
5109 -- Parameter_Associations (List3) (set to No_List if no
5110 -- actual parameter part)
5111 -- First_Named_Actual (Node4-Sem)
5113 ------------------------------
5114 -- 9.5.4 Requeue Statement --
5115 ------------------------------
5117 -- REQUEUE_STATEMENT ::= requeue entry_NAME [with abort];
5119 -- Note: requeue statements are not permitted in Ada 83 mode
5121 -- Gigi restriction: This node never appears
5123 -- N_Requeue_Statement
5124 -- Sloc points to REQUEUE
5126 -- Abort_Present (Flag15)
5128 --------------------------
5129 -- 9.6 Delay Statement --
5130 --------------------------
5132 -- DELAY_STATEMENT ::=
5133 -- DELAY_UNTIL_STATEMENT
5134 -- | DELAY_RELATIVE_STATEMENT
5136 --------------------------------
5137 -- 9.6 Delay Until Statement --
5138 --------------------------------
5140 -- DELAY_UNTIL_STATEMENT ::= delay until delay_EXPRESSION;
5142 -- Note: delay until statements are not permitted in Ada 83 mode
5144 -- Gigi restriction: This node never appears
5146 -- N_Delay_Until_Statement
5147 -- Sloc points to DELAY
5148 -- Expression (Node3)
5150 -----------------------------------
5151 -- 9.6 Delay Relative Statement --
5152 -----------------------------------
5154 -- DELAY_RELATIVE_STATEMENT ::= delay delay_EXPRESSION;
5156 -- Gigi restriction: This node never appears
5158 -- N_Delay_Relative_Statement
5159 -- Sloc points to DELAY
5160 -- Expression (Node3)
5162 ---------------------------
5163 -- 9.7 Select Statement --
5164 ---------------------------
5166 -- SELECT_STATEMENT ::=
5168 -- | TIMED_ENTRY_CALL
5169 -- | CONDITIONAL_ENTRY_CALL
5170 -- | ASYNCHRONOUS_SELECT
5172 -----------------------------
5173 -- 9.7.1 Selective Accept --
5174 -----------------------------
5176 -- SELECTIVE_ACCEPT ::=
5179 -- SELECT_ALTERNATIVE
5182 -- SELECT_ALTERNATIVE}
5184 -- SEQUENCE_OF_STATEMENTS]
5187 -- Gigi restriction: This node never appears
5189 -- Note: the guard expression, if present, appears in the node for
5190 -- the select alternative.
5192 -- N_Selective_Accept
5193 -- Sloc points to SELECT
5194 -- Select_Alternatives (List1)
5195 -- Else_Statements (List4) (set to No_List if no else part)
5201 -- GUARD ::= when CONDITION =>
5203 -- As noted above, the CONDITION that is part of a GUARD is included
5204 -- in the node for the select alternative for convenience.
5206 -------------------------------
5207 -- 9.7.1 Select Alternative --
5208 -------------------------------
5210 -- SELECT_ALTERNATIVE ::=
5211 -- ACCEPT_ALTERNATIVE
5212 -- | DELAY_ALTERNATIVE
5213 -- | TERMINATE_ALTERNATIVE
5215 -------------------------------
5216 -- 9.7.1 Accept Alternative --
5217 -------------------------------
5219 -- ACCEPT_ALTERNATIVE ::=
5220 -- ACCEPT_STATEMENT [SEQUENCE_OF_STATEMENTS]
5222 -- Gigi restriction: This node never appears
5224 -- N_Accept_Alternative
5225 -- Sloc points to ACCEPT
5226 -- Accept_Statement (Node2)
5227 -- Condition (Node1) from the guard (set to Empty if no guard present)
5228 -- Statements (List3) (set to Empty_List if no statements)
5229 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5230 -- Accept_Handler_Records (List5-Sem)
5232 ------------------------------
5233 -- 9.7.1 Delay Alternative --
5234 ------------------------------
5236 -- DELAY_ALTERNATIVE ::=
5237 -- DELAY_STATEMENT [SEQUENCE_OF_STATEMENTS]
5239 -- Gigi restriction: This node never appears
5241 -- N_Delay_Alternative
5242 -- Sloc points to DELAY
5243 -- Delay_Statement (Node2)
5244 -- Condition (Node1) from the guard (set to Empty if no guard present)
5245 -- Statements (List3) (set to Empty_List if no statements)
5246 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5248 ----------------------------------
5249 -- 9.7.1 Terminate Alternative --
5250 ----------------------------------
5252 -- TERMINATE_ALTERNATIVE ::= terminate;
5254 -- Gigi restriction: This node never appears
5256 -- N_Terminate_Alternative
5257 -- Sloc points to TERMINATE
5258 -- Condition (Node1) from the guard (set to Empty if no guard present)
5259 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5260 -- Pragmas_After (List5) pragmas after alt (set to No_List if none)
5262 -----------------------------
5263 -- 9.7.2 Timed Entry Call --
5264 -----------------------------
5266 -- TIMED_ENTRY_CALL ::=
5268 -- ENTRY_CALL_ALTERNATIVE
5270 -- DELAY_ALTERNATIVE
5273 -- Gigi restriction: This node never appears
5275 -- N_Timed_Entry_Call
5276 -- Sloc points to SELECT
5277 -- Entry_Call_Alternative (Node1)
5278 -- Delay_Alternative (Node4)
5280 -----------------------------------
5281 -- 9.7.2 Entry Call Alternative --
5282 -----------------------------------
5284 -- ENTRY_CALL_ALTERNATIVE ::=
5285 -- PROCEDURE_OR_ENTRY_CALL [SEQUENCE_OF_STATEMENTS]
5287 -- PROCEDURE_OR_ENTRY_CALL ::=
5288 -- PROCEDURE_CALL_STATEMENT | ENTRY_CALL_STATEMENT
5290 -- Gigi restriction: This node never appears
5292 -- N_Entry_Call_Alternative
5293 -- Sloc points to first token of entry call statement
5294 -- Entry_Call_Statement (Node1)
5295 -- Statements (List3) (set to Empty_List if no statements)
5296 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5298 -----------------------------------
5299 -- 9.7.3 Conditional Entry Call --
5300 -----------------------------------
5302 -- CONDITIONAL_ENTRY_CALL ::=
5304 -- ENTRY_CALL_ALTERNATIVE
5306 -- SEQUENCE_OF_STATEMENTS
5309 -- Gigi restriction: This node never appears
5311 -- N_Conditional_Entry_Call
5312 -- Sloc points to SELECT
5313 -- Entry_Call_Alternative (Node1)
5314 -- Else_Statements (List4)
5316 --------------------------------
5317 -- 9.7.4 Asynchronous Select --
5318 --------------------------------
5320 -- ASYNCHRONOUS_SELECT ::=
5322 -- TRIGGERING_ALTERNATIVE
5327 -- Note: asynchronous select is not permitted in Ada 83 mode
5329 -- Gigi restriction: This node never appears
5331 -- N_Asynchronous_Select
5332 -- Sloc points to SELECT
5333 -- Triggering_Alternative (Node1)
5334 -- Abortable_Part (Node2)
5336 -----------------------------------
5337 -- 9.7.4 Triggering Alternative --
5338 -----------------------------------
5340 -- TRIGGERING_ALTERNATIVE ::=
5341 -- TRIGGERING_STATEMENT [SEQUENCE_OF_STATEMENTS]
5343 -- Gigi restriction: This node never appears
5345 -- N_Triggering_Alternative
5346 -- Sloc points to first token of triggering statement
5347 -- Triggering_Statement (Node1)
5348 -- Statements (List3) (set to Empty_List if no statements)
5349 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5351 ---------------------------------
5352 -- 9.7.4 Triggering Statement --
5353 ---------------------------------
5355 -- TRIGGERING_STATEMENT ::= PROCEDURE_OR_ENTRY_CALL | DELAY_STATEMENT
5357 ---------------------------
5358 -- 9.7.4 Abortable Part --
5359 ---------------------------
5361 -- ABORTABLE_PART ::= SEQUENCE_OF_STATEMENTS
5363 -- Gigi restriction: This node never appears
5366 -- Sloc points to ABORT
5367 -- Statements (List3)
5369 --------------------------
5370 -- 9.8 Abort Statement --
5371 --------------------------
5373 -- ABORT_STATEMENT ::= abort task_NAME {, task_NAME};
5375 -- Gigi restriction: This node never appears
5377 -- N_Abort_Statement
5378 -- Sloc points to ABORT
5381 -------------------------
5382 -- 10.1.1 Compilation --
5383 -------------------------
5385 -- COMPILATION ::= {COMPILATION_UNIT}
5387 -- There is no explicit node in the tree for a compilation, since in
5388 -- general the compiler is processing only a single compilation unit
5389 -- at a time. It is possible to parse multiple units in syntax check
5390 -- only mode, but the trees are discarded in that case.
5392 ------------------------------
5393 -- 10.1.1 Compilation Unit --
5394 ------------------------------
5396 -- COMPILATION_UNIT ::=
5397 -- CONTEXT_CLAUSE LIBRARY_ITEM
5398 -- | CONTEXT_CLAUSE SUBUNIT
5400 -- The N_Compilation_Unit node itself represents the above syntax.
5401 -- However, there are two additional items not reflected in the above
5402 -- syntax. First we have the global declarations that are added by the
5403 -- code generator. These are outer level declarations (so they cannot
5404 -- be represented as being inside the units). An example is the wrapper
5405 -- subprograms that are created to do ABE checking. As always a list of
5406 -- declarations can contain actions as well (i.e. statements), and such
5407 -- statements are executed as part of the elaboration of the unit. Note
5408 -- that all such declarations are elaborated before the library unit.
5410 -- Similarly, certain actions need to be elaborated at the completion
5411 -- of elaboration of the library unit (notably the statement that sets
5412 -- the Boolean flag indicating that elaboration is complete).
5414 -- The third item not reflected in the syntax is pragmas that appear
5415 -- after the compilation unit. As always pragmas are a problem since
5416 -- they are not part of the formal syntax, but can be stuck into the
5417 -- source following a set of ad hoc rules, and we have to find an ad
5418 -- hoc way of sticking them into the tree. For pragmas that appear
5419 -- before the library unit, we just consider them to be part of the
5420 -- context clause, and pragmas can appear in the Context_Items list
5421 -- of the compilation unit. However, pragmas can also appear after
5422 -- the library item.
5424 -- To deal with all these problems, we create an auxiliary node for
5425 -- a compilation unit, referenced from the N_Compilation_Unit node
5426 -- that contains these three items.
5428 -- N_Compilation_Unit
5429 -- Sloc points to first token of defining unit name
5430 -- Library_Unit (Node4-Sem) corresponding/parent spec/body
5431 -- Context_Items (List1) context items and pragmas preceding unit
5432 -- Private_Present (Flag15) set if library unit has private keyword
5433 -- Unit (Node2) library item or subunit
5434 -- Aux_Decls_Node (Node5) points to the N_Compilation_Unit_Aux node
5435 -- Has_No_Elaboration_Code (Flag17-Sem)
5436 -- Body_Required (Flag13-Sem) set for spec if body is required
5437 -- Acts_As_Spec (Flag4-Sem) flag for subprogram body with no spec
5438 -- Context_Pending (Flag16-Sem)
5439 -- First_Inlined_Subprogram (Node3-Sem)
5441 -- N_Compilation_Unit_Aux
5442 -- Sloc is a copy of the Sloc from the N_Compilation_Unit node
5443 -- Declarations (List2) (set to No_List if no global declarations)
5444 -- Actions (List1) (set to No_List if no actions)
5445 -- Pragmas_After (List5) pragmas after unit (set to No_List if none)
5446 -- Config_Pragmas (List4) config pragmas (set to Empty_List if none)
5448 --------------------------
5449 -- 10.1.1 Library Item --
5450 --------------------------
5453 -- [private] LIBRARY_UNIT_DECLARATION
5454 -- | LIBRARY_UNIT_BODY
5455 -- | [private] LIBRARY_UNIT_RENAMING_DECLARATION
5457 -- Note: PRIVATE is not allowed in Ada 83 mode
5459 -- There is no explicit node in the tree for library item, instead
5460 -- the declaration or body, and the flag for private if present,
5461 -- appear in the N_Compilation_Unit node.
5463 --------------------------------------
5464 -- 10.1.1 Library Unit Declaration --
5465 --------------------------------------
5467 -- LIBRARY_UNIT_DECLARATION ::=
5468 -- SUBPROGRAM_DECLARATION | PACKAGE_DECLARATION
5469 -- | GENERIC_DECLARATION | GENERIC_INSTANTIATION
5471 -----------------------------------------------
5472 -- 10.1.1 Library Unit Renaming Declaration --
5473 -----------------------------------------------
5475 -- LIBRARY_UNIT_RENAMING_DECLARATION ::=
5476 -- PACKAGE_RENAMING_DECLARATION
5477 -- | GENERIC_RENAMING_DECLARATION
5478 -- | SUBPROGRAM_RENAMING_DECLARATION
5480 -------------------------------
5481 -- 10.1.1 Library unit body --
5482 -------------------------------
5484 -- LIBRARY_UNIT_BODY ::= SUBPROGRAM_BODY | PACKAGE_BODY
5486 ------------------------------
5487 -- 10.1.1 Parent Unit Name --
5488 ------------------------------
5490 -- PARENT_UNIT_NAME ::= NAME
5492 ----------------------------
5493 -- 10.1.2 Context clause --
5494 ----------------------------
5496 -- CONTEXT_CLAUSE ::= {CONTEXT_ITEM}
5498 -- The context clause can include pragmas, and any pragmas that appear
5499 -- before the context clause proper (i.e. all configuration pragmas,
5500 -- also appear at the front of this list).
5502 --------------------------
5503 -- 10.1.2 Context_Item --
5504 --------------------------
5506 -- CONTEXT_ITEM ::= WITH_CLAUSE | USE_CLAUSE | WITH_TYPE_CLAUSE
5508 -------------------------
5509 -- 10.1.2 With clause --
5510 -------------------------
5513 -- with library_unit_NAME {,library_unit_NAME};
5515 -- A separate With clause is built for each name, so that we have
5516 -- a Corresponding_Spec field for each with'ed spec. The flags
5517 -- First_Name and Last_Name are used to reconstruct the exact
5518 -- source form. When a list of names appears in one with clause,
5519 -- the first name in the list has First_Name set, and the last
5520 -- has Last_Name set. If the with clause has only one name, then
5521 -- both of the flags First_Name and Last_Name are set in this name.
5523 -- Note: in the case of implicit with's that are installed by the
5524 -- Rtsfind routine, Implicit_With is set, and the Sloc is typically
5525 -- set to Standard_Location, but it is incorrect to test the Sloc
5526 -- to find out if a with clause is implicit, test the flag instead.
5529 -- Sloc points to first token of library unit name
5531 -- Next_Implicit_With (Node3-Sem)
5532 -- Library_Unit (Node4-Sem)
5533 -- Corresponding_Spec (Node5-Sem)
5534 -- First_Name (Flag5) (set to True if first name or only one name)
5535 -- Last_Name (Flag6) (set to True if last name or only one name)
5536 -- Context_Installed (Flag13-Sem)
5537 -- Elaborate_Present (Flag4-Sem)
5538 -- Elaborate_All_Present (Flag14-Sem)
5539 -- Elaborate_All_Desirable (Flag9-Sem)
5540 -- Elaborate_Desirable (Flag11-Sem)
5541 -- Private_Present (Flag15) set if with_clause has private keyword
5542 -- Implicit_With (Flag16-Sem)
5543 -- Limited_Present (Flag17) set if LIMITED is present
5544 -- Limited_View_Installed (Flag18-Sem)
5545 -- Unreferenced_In_Spec (Flag7-Sem)
5546 -- No_Entities_Ref_In_Spec (Flag8-Sem)
5548 -- Note: Limited_Present and Limited_View_Installed give support to
5549 -- Ada 2005 (AI-50217).
5550 -- Similarly, Private_Present gives support to AI-50262.
5552 ----------------------
5553 -- With_Type clause --
5554 ----------------------
5556 -- This is a GNAT extension, used to implement mutually recursive
5557 -- types declared in different packages.
5558 -- Note: this is now obsolete. The functionality of this construct
5559 -- is now implemented by the Ada 2005 Limited_with_Clause.
5561 ---------------------
5562 -- 10.2 Body stub --
5563 ---------------------
5566 -- SUBPROGRAM_BODY_STUB
5567 -- | PACKAGE_BODY_STUB
5569 -- | PROTECTED_BODY_STUB
5571 ----------------------------------
5572 -- 10.1.3 Subprogram Body Stub --
5573 ----------------------------------
5575 -- SUBPROGRAM_BODY_STUB ::=
5576 -- SUBPROGRAM_SPECIFICATION is separate;
5578 -- N_Subprogram_Body_Stub
5579 -- Sloc points to FUNCTION or PROCEDURE
5580 -- Specification (Node1)
5581 -- Library_Unit (Node4-Sem) points to the subunit
5582 -- Corresponding_Body (Node5-Sem)
5584 -------------------------------
5585 -- 10.1.3 Package Body Stub --
5586 -------------------------------
5588 -- PACKAGE_BODY_STUB ::=
5589 -- package body DEFINING_IDENTIFIER is separate;
5591 -- N_Package_Body_Stub
5592 -- Sloc points to PACKAGE
5593 -- Defining_Identifier (Node1)
5594 -- Library_Unit (Node4-Sem) points to the subunit
5595 -- Corresponding_Body (Node5-Sem)
5597 ----------------------------
5598 -- 10.1.3 Task Body Stub --
5599 ----------------------------
5601 -- TASK_BODY_STUB ::=
5602 -- task body DEFINING_IDENTIFIER is separate;
5605 -- Sloc points to TASK
5606 -- Defining_Identifier (Node1)
5607 -- Library_Unit (Node4-Sem) points to the subunit
5608 -- Corresponding_Body (Node5-Sem)
5610 ---------------------------------
5611 -- 10.1.3 Protected Body Stub --
5612 ---------------------------------
5614 -- PROTECTED_BODY_STUB ::=
5615 -- protected body DEFINING_IDENTIFIER is separate;
5617 -- Note: protected body stubs are not allowed in Ada 83 mode
5619 -- N_Protected_Body_Stub
5620 -- Sloc points to PROTECTED
5621 -- Defining_Identifier (Node1)
5622 -- Library_Unit (Node4-Sem) points to the subunit
5623 -- Corresponding_Body (Node5-Sem)
5625 ---------------------
5626 -- 10.1.3 Subunit --
5627 ---------------------
5629 -- SUBUNIT ::= separate (PARENT_UNIT_NAME) PROPER_BODY
5632 -- Sloc points to SEPARATE
5633 -- Name (Node2) is the name of the parent unit
5634 -- Proper_Body (Node1) is the subunit body
5635 -- Corresponding_Stub (Node3-Sem) is the stub declaration for the unit.
5637 ---------------------------------
5638 -- 11.1 Exception Declaration --
5639 ---------------------------------
5641 -- EXCEPTION_DECLARATION ::= DEFINING_IDENTIFIER_LIST : exception;
5643 -- For consistency with object declarations etc., the parser converts
5644 -- the case of multiple identifiers being declared to a series of
5645 -- declarations in which the expression is copied, using the More_Ids
5646 -- and Prev_Ids flags to remember the source form as described in the
5647 -- section on "Handling of Defining Identifier Lists".
5649 -- N_Exception_Declaration
5650 -- Sloc points to EXCEPTION
5651 -- Defining_Identifier (Node1)
5652 -- Expression (Node3-Sem)
5653 -- Renaming_Exception (Node2-Sem)
5654 -- More_Ids (Flag5) (set to False if no more identifiers in list)
5655 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
5657 ------------------------------------------
5658 -- 11.2 Handled Sequence Of Statements --
5659 ------------------------------------------
5661 -- HANDLED_SEQUENCE_OF_STATEMENTS ::=
5662 -- SEQUENCE_OF_STATEMENTS
5664 -- EXCEPTION_HANDLER
5665 -- {EXCEPTION_HANDLER}]
5667 -- cleanup_procedure_call (param, param, param, ...);]
5669 -- The AT END phrase is a GNAT extension to provide for cleanups. It is
5670 -- used only internally currently, but is considered to be syntactic.
5671 -- At the moment, the only cleanup action allowed is a single call to
5672 -- a parameterless procedure, and the Identifier field of the node is
5673 -- the procedure to be called. Also there is a current restriction
5674 -- that exception handles and a cleanup cannot be present in the same
5675 -- frame, so at least one of Exception_Handlers or the Identifier must
5678 -- Actually, more accurately, this restriction applies to the original
5679 -- source program. In the expanded tree, if the At_End_Proc field is
5680 -- present, then there will also be an exception handler of the form:
5682 -- when all others =>
5686 -- where cleanup is the procedure to be generated. The reason we do
5687 -- this is so that the front end can handle the necessary entries in
5688 -- the exception tables, and other exception handler actions required
5689 -- as part of the normal handling for exception handlers.
5691 -- The AT END cleanup handler protects only the sequence of statements
5692 -- (not the associated declarations of the parent), just like exception
5693 -- handlers. The big difference is that the cleanup procedure is called
5694 -- on either a normal or an abnormal exit from the statement sequence.
5696 -- Note: the list of Exception_Handlers can contain pragmas as well
5697 -- as actual handlers. In practice these pragmas can only occur at
5698 -- the start of the list, since any pragmas occurring later on will
5699 -- be included in the statement list of the corresponding handler.
5701 -- Note: although in the Ada syntax, the sequence of statements in
5702 -- a handled sequence of statements can only contain statements, we
5703 -- allow free mixing of declarations and statements in the resulting
5704 -- expanded tree. This is for example used to deal with the case of
5705 -- a cleanup procedure that must handle declarations as well as the
5706 -- statements of a block.
5708 -- N_Handled_Sequence_Of_Statements
5709 -- Sloc points to first token of first statement
5710 -- Statements (List3)
5711 -- End_Label (Node4) (set to Empty if expander generated)
5712 -- Exception_Handlers (List5) (set to No_List if none present)
5713 -- At_End_Proc (Node1) (set to Empty if no clean up procedure)
5714 -- First_Real_Statement (Node2-Sem)
5715 -- Zero_Cost_Handling (Flag5-Sem)
5717 -- Note: the parent always contains a Declarations field which contains
5718 -- declarations associated with the handled sequence of statements. This
5719 -- is true even in the case of an accept statement (see description of
5720 -- the N_Accept_Statement node).
5722 -- End_Label refers to the containing construct
5724 -----------------------------
5725 -- 11.2 Exception Handler --
5726 -----------------------------
5728 -- EXCEPTION_HANDLER ::=
5729 -- when [CHOICE_PARAMETER_SPECIFICATION :]
5730 -- EXCEPTION_CHOICE {| EXCEPTION_CHOICE} =>
5731 -- SEQUENCE_OF_STATEMENTS
5733 -- Note: choice parameter specification is not allowed in Ada 83 mode
5735 -- N_Exception_Handler
5736 -- Sloc points to WHEN
5737 -- Choice_Parameter (Node2) (set to Empty if not present)
5738 -- Exception_Choices (List4)
5739 -- Statements (List3)
5740 -- Exception_Label (Node5-Sem) (set to Empty of not present)
5741 -- Zero_Cost_Handling (Flag5-Sem)
5742 -- Local_Raise_Statements (Elist1-Sem) (set to No_Elist if not present)
5743 -- Local_Raise_Not_OK (Flag7-Sem)
5744 -- Has_Local_Raise (Flag8-Sem)
5746 ------------------------------------------
5747 -- 11.2 Choice parameter specification --
5748 ------------------------------------------
5750 -- CHOICE_PARAMETER_SPECIFICATION ::= DEFINING_IDENTIFIER
5752 ----------------------------
5753 -- 11.2 Exception Choice --
5754 ----------------------------
5756 -- EXCEPTION_CHOICE ::= exception_NAME | others
5758 -- Except in the case of OTHERS, no explicit node appears in the tree
5759 -- for exception choice. Instead the exception name appears directly.
5760 -- An OTHERS choice is represented by a N_Others_Choice node (see
5763 -- Note: for the exception choice created for an at end handler, the
5764 -- exception choice is an N_Others_Choice node with All_Others set.
5766 ---------------------------
5767 -- 11.3 Raise Statement --
5768 ---------------------------
5770 -- RAISE_STATEMENT ::= raise [exception_NAME];
5772 -- In Ada 2005, we have
5774 -- RAISE_STATEMENT ::= raise; | raise exception_NAME [with EXPRESSION];
5776 -- N_Raise_Statement
5777 -- Sloc points to RAISE
5778 -- Name (Node2) (set to Empty if no exception name present)
5779 -- Expression (Node3) (set to Empty if no expression present)
5780 -- From_At_End (Flag4-Sem)
5782 -------------------------------
5783 -- 12.1 Generic Declaration --
5784 -------------------------------
5786 -- GENERIC_DECLARATION ::=
5787 -- GENERIC_SUBPROGRAM_DECLARATION | GENERIC_PACKAGE_DECLARATION
5789 ------------------------------------------
5790 -- 12.1 Generic Subprogram Declaration --
5791 ------------------------------------------
5793 -- GENERIC_SUBPROGRAM_DECLARATION ::=
5794 -- GENERIC_FORMAL_PART SUBPROGRAM_SPECIFICATION;
5796 -- Note: Generic_Formal_Declarations can include pragmas
5798 -- N_Generic_Subprogram_Declaration
5799 -- Sloc points to GENERIC
5800 -- Specification (Node1) subprogram specification
5801 -- Corresponding_Body (Node5-Sem)
5802 -- Generic_Formal_Declarations (List2) from generic formal part
5803 -- Parent_Spec (Node4-Sem)
5805 ---------------------------------------
5806 -- 12.1 Generic Package Declaration --
5807 ---------------------------------------
5809 -- GENERIC_PACKAGE_DECLARATION ::=
5810 -- GENERIC_FORMAL_PART PACKAGE_SPECIFICATION;
5812 -- Note: when we do generics right, the Activation_Chain_Entity entry
5813 -- for this node can be removed (since the expander won't see generic
5814 -- units any more)???.
5816 -- Note: Generic_Formal_Declarations can include pragmas
5818 -- N_Generic_Package_Declaration
5819 -- Sloc points to GENERIC
5820 -- Specification (Node1) package specification
5821 -- Corresponding_Body (Node5-Sem)
5822 -- Generic_Formal_Declarations (List2) from generic formal part
5823 -- Parent_Spec (Node4-Sem)
5824 -- Activation_Chain_Entity (Node3-Sem)
5826 -------------------------------
5827 -- 12.1 Generic Formal Part --
5828 -------------------------------
5830 -- GENERIC_FORMAL_PART ::=
5831 -- generic {GENERIC_FORMAL_PARAMETER_DECLARATION | USE_CLAUSE}
5833 ------------------------------------------------
5834 -- 12.1 Generic Formal Parameter Declaration --
5835 ------------------------------------------------
5837 -- GENERIC_FORMAL_PARAMETER_DECLARATION ::=
5838 -- FORMAL_OBJECT_DECLARATION
5839 -- | FORMAL_TYPE_DECLARATION
5840 -- | FORMAL_SUBPROGRAM_DECLARATION
5841 -- | FORMAL_PACKAGE_DECLARATION
5843 ---------------------------------
5844 -- 12.3 Generic Instantiation --
5845 ---------------------------------
5847 -- GENERIC_INSTANTIATION ::=
5848 -- package DEFINING_PROGRAM_UNIT_NAME is
5849 -- new generic_package_NAME [GENERIC_ACTUAL_PART];
5850 -- | [[not] overriding]
5851 -- procedure DEFINING_PROGRAM_UNIT_NAME is
5852 -- new generic_procedure_NAME [GENERIC_ACTUAL_PART];
5853 -- | [[not] overriding]
5854 -- function DEFINING_DESIGNATOR is
5855 -- new generic_function_NAME [GENERIC_ACTUAL_PART];
5857 -- N_Package_Instantiation
5858 -- Sloc points to PACKAGE
5859 -- Defining_Unit_Name (Node1)
5861 -- Generic_Associations (List3) (set to No_List if no
5862 -- generic actual part)
5863 -- Parent_Spec (Node4-Sem)
5864 -- Instance_Spec (Node5-Sem)
5865 -- ABE_Is_Certain (Flag18-Sem)
5867 -- N_Procedure_Instantiation
5868 -- Sloc points to PROCEDURE
5869 -- Defining_Unit_Name (Node1)
5871 -- Parent_Spec (Node4-Sem)
5872 -- Generic_Associations (List3) (set to No_List if no
5873 -- generic actual part)
5874 -- Instance_Spec (Node5-Sem)
5875 -- Must_Override (Flag14) set if overriding indicator present
5876 -- Must_Not_Override (Flag15) set if not_overriding indicator present
5877 -- ABE_Is_Certain (Flag18-Sem)
5879 -- N_Function_Instantiation
5880 -- Sloc points to FUNCTION
5881 -- Defining_Unit_Name (Node1)
5883 -- Generic_Associations (List3) (set to No_List if no
5884 -- generic actual part)
5885 -- Parent_Spec (Node4-Sem)
5886 -- Instance_Spec (Node5-Sem)
5887 -- Must_Override (Flag14) set if overriding indicator present
5888 -- Must_Not_Override (Flag15) set if not_overriding indicator present
5889 -- ABE_Is_Certain (Flag18-Sem)
5891 -- Note: overriding indicator is an Ada 2005 feature
5893 -------------------------------
5894 -- 12.3 Generic Actual Part --
5895 -------------------------------
5897 -- GENERIC_ACTUAL_PART ::=
5898 -- (GENERIC_ASSOCIATION {, GENERIC_ASSOCIATION})
5900 -------------------------------
5901 -- 12.3 Generic Association --
5902 -------------------------------
5904 -- GENERIC_ASSOCIATION ::=
5905 -- [generic_formal_parameter_SELECTOR_NAME =>]
5907 -- Note: unlike the procedure call case, a generic association node
5908 -- is generated for every association, even if no formal parameter
5909 -- selector name is present. In this case the parser will leave the
5910 -- Selector_Name field set to Empty, to be filled in later by the
5913 -- In Ada 2005, a formal may be associated with a box, if the
5914 -- association is part of the list of actuals for a formal package.
5915 -- If the association is given by OTHERS => <>, the association is
5916 -- an N_Others_Choice.
5918 -- N_Generic_Association
5919 -- Sloc points to first token of generic association
5920 -- Selector_Name (Node2) (set to Empty if no formal
5921 -- parameter selector name)
5922 -- Explicit_Generic_Actual_Parameter (Node1) (Empty if box present)
5923 -- Box_Present (Flag15) (for formal_package associations with a box)
5925 ---------------------------------------------
5926 -- 12.3 Explicit Generic Actual Parameter --
5927 ---------------------------------------------
5929 -- EXPLICIT_GENERIC_ACTUAL_PARAMETER ::=
5930 -- EXPRESSION | variable_NAME | subprogram_NAME
5931 -- | entry_NAME | SUBTYPE_MARK | package_instance_NAME
5933 -------------------------------------
5934 -- 12.4 Formal Object Declaration --
5935 -------------------------------------
5937 -- FORMAL_OBJECT_DECLARATION ::=
5938 -- DEFINING_IDENTIFIER_LIST :
5939 -- MODE [NULL_EXCLUSION] SUBTYPE_MARK [:= DEFAULT_EXPRESSION];
5940 -- | DEFINING_IDENTIFIER_LIST :
5941 -- MODE ACCESS_DEFINITION [:= DEFAULT_EXPRESSION];
5943 -- Although the syntax allows multiple identifiers in the list, the
5944 -- semantics is as though successive declarations were given with
5945 -- identical type definition and expression components. To simplify
5946 -- semantic processing, the parser represents a multiple declaration
5947 -- case as a sequence of single declarations, using the More_Ids and
5948 -- Prev_Ids flags to preserve the original source form as described
5949 -- in the section on "Handling of Defining Identifier Lists".
5951 -- N_Formal_Object_Declaration
5952 -- Sloc points to first identifier
5953 -- Defining_Identifier (Node1)
5954 -- In_Present (Flag15)
5955 -- Out_Present (Flag17)
5956 -- Null_Exclusion_Present (Flag11) (set to False if not present)
5957 -- Subtype_Mark (Node4) (set to Empty if not present)
5958 -- Access_Definition (Node3) (set to Empty if not present)
5959 -- Default_Expression (Node5) (set to Empty if no default expression)
5960 -- More_Ids (Flag5) (set to False if no more identifiers in list)
5961 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
5963 -----------------------------------
5964 -- 12.5 Formal Type Declaration --
5965 -----------------------------------
5967 -- FORMAL_TYPE_DECLARATION ::=
5968 -- type DEFINING_IDENTIFIER [DISCRIMINANT_PART]
5969 -- is FORMAL_TYPE_DEFINITION;
5971 -- N_Formal_Type_Declaration
5972 -- Sloc points to TYPE
5973 -- Defining_Identifier (Node1)
5974 -- Formal_Type_Definition (Node3)
5975 -- Discriminant_Specifications (List4) (set to No_List if no
5976 -- discriminant part)
5977 -- Unknown_Discriminants_Present (Flag13) set if (<>) discriminant
5979 ----------------------------------
5980 -- 12.5 Formal type definition --
5981 ----------------------------------
5983 -- FORMAL_TYPE_DEFINITION ::=
5984 -- FORMAL_PRIVATE_TYPE_DEFINITION
5985 -- | FORMAL_DERIVED_TYPE_DEFINITION
5986 -- | FORMAL_DISCRETE_TYPE_DEFINITION
5987 -- | FORMAL_SIGNED_INTEGER_TYPE_DEFINITION
5988 -- | FORMAL_MODULAR_TYPE_DEFINITION
5989 -- | FORMAL_FLOATING_POINT_DEFINITION
5990 -- | FORMAL_ORDINARY_FIXED_POINT_DEFINITION
5991 -- | FORMAL_DECIMAL_FIXED_POINT_DEFINITION
5992 -- | FORMAL_ARRAY_TYPE_DEFINITION
5993 -- | FORMAL_ACCESS_TYPE_DEFINITION
5994 -- | FORMAL_INTERFACE_TYPE_DEFINITION
5996 ---------------------------------------------
5997 -- 12.5.1 Formal Private Type Definition --
5998 ---------------------------------------------
6000 -- FORMAL_PRIVATE_TYPE_DEFINITION ::=
6001 -- [[abstract] tagged] [limited] private
6003 -- Note: TAGGED is not allowed in Ada 83 mode
6005 -- N_Formal_Private_Type_Definition
6006 -- Sloc points to PRIVATE
6007 -- Abstract_Present (Flag4)
6008 -- Tagged_Present (Flag15)
6009 -- Limited_Present (Flag17)
6011 --------------------------------------------
6012 -- 12.5.1 Formal Derived Type Definition --
6013 --------------------------------------------
6015 -- FORMAL_DERIVED_TYPE_DEFINITION ::=
6016 -- [abstract] [limited | synchronized]
6017 -- new SUBTYPE_MARK [[and INTERFACE_LIST] with private]
6018 -- Note: this construct is not allowed in Ada 83 mode
6020 -- N_Formal_Derived_Type_Definition
6021 -- Sloc points to NEW
6022 -- Subtype_Mark (Node4)
6023 -- Private_Present (Flag15)
6024 -- Abstract_Present (Flag4)
6025 -- Limited_Present (Flag17)
6026 -- Synchronized_Present (Flag7)
6027 -- Interface_List (List2) (set to No_List if none)
6029 ---------------------------------------------
6030 -- 12.5.2 Formal Discrete Type Definition --
6031 ---------------------------------------------
6033 -- FORMAL_DISCRETE_TYPE_DEFINITION ::= (<>)
6035 -- N_Formal_Discrete_Type_Definition
6038 ---------------------------------------------------
6039 -- 12.5.2 Formal Signed Integer Type Definition --
6040 ---------------------------------------------------
6042 -- FORMAL_SIGNED_INTEGER_TYPE_DEFINITION ::= range <>
6044 -- N_Formal_Signed_Integer_Type_Definition
6045 -- Sloc points to RANGE
6047 --------------------------------------------
6048 -- 12.5.2 Formal Modular Type Definition --
6049 --------------------------------------------
6051 -- FORMAL_MODULAR_TYPE_DEFINITION ::= mod <>
6053 -- N_Formal_Modular_Type_Definition
6054 -- Sloc points to MOD
6056 ----------------------------------------------
6057 -- 12.5.2 Formal Floating Point Definition --
6058 ----------------------------------------------
6060 -- FORMAL_FLOATING_POINT_DEFINITION ::= digits <>
6062 -- N_Formal_Floating_Point_Definition
6063 -- Sloc points to DIGITS
6065 ----------------------------------------------------
6066 -- 12.5.2 Formal Ordinary Fixed Point Definition --
6067 ----------------------------------------------------
6069 -- FORMAL_ORDINARY_FIXED_POINT_DEFINITION ::= delta <>
6071 -- N_Formal_Ordinary_Fixed_Point_Definition
6072 -- Sloc points to DELTA
6074 ---------------------------------------------------
6075 -- 12.5.2 Formal Decimal Fixed Point Definition --
6076 ---------------------------------------------------
6078 -- FORMAL_DECIMAL_FIXED_POINT_DEFINITION ::= delta <> digits <>
6080 -- Note: formal decimal fixed point definition not allowed in Ada 83
6082 -- N_Formal_Decimal_Fixed_Point_Definition
6083 -- Sloc points to DELTA
6085 ------------------------------------------
6086 -- 12.5.3 Formal Array Type Definition --
6087 ------------------------------------------
6089 -- FORMAL_ARRAY_TYPE_DEFINITION ::= ARRAY_TYPE_DEFINITION
6091 -------------------------------------------
6092 -- 12.5.4 Formal Access Type Definition --
6093 -------------------------------------------
6095 -- FORMAL_ACCESS_TYPE_DEFINITION ::= ACCESS_TYPE_DEFINITION
6097 ----------------------------------------------
6098 -- 12.5.5 Formal Interface Type Definition --
6099 ----------------------------------------------
6101 -- FORMAL_INTERFACE_TYPE_DEFINITION ::= INTERFACE_TYPE_DEFINITION
6103 -----------------------------------------
6104 -- 12.6 Formal Subprogram Declaration --
6105 -----------------------------------------
6107 -- FORMAL_SUBPROGRAM_DECLARATION ::=
6108 -- FORMAL_CONCRETE_SUBPROGRAM_DECLARATION
6109 -- | FORMAL_ABSTRACT_SUBPROGRAM_DECLARATION
6111 --------------------------------------------------
6112 -- 12.6 Formal Concrete Subprogram Declaration --
6113 --------------------------------------------------
6115 -- FORMAL_CONCRETE_SUBPROGRAM_DECLARATION ::=
6116 -- with SUBPROGRAM_SPECIFICATION [is SUBPROGRAM_DEFAULT];
6118 -- N_Formal_Concrete_Subprogram_Declaration
6119 -- Sloc points to WITH
6120 -- Specification (Node1)
6121 -- Default_Name (Node2) (set to Empty if no subprogram default)
6122 -- Box_Present (Flag15)
6124 -- Note: if no subprogram default is present, then Name is set
6125 -- to Empty, and Box_Present is False.
6127 --------------------------------------------------
6128 -- 12.6 Formal Abstract Subprogram Declaration --
6129 --------------------------------------------------
6131 -- FORMAL_ABSTRACT_SUBPROGRAM_DECLARATION ::=
6132 -- with SUBPROGRAM_SPECIFICATION is abstract [SUBPROGRAM_DEFAULT];
6134 -- N_Formal_Abstract_Subprogram_Declaration
6135 -- Sloc points to WITH
6136 -- Specification (Node1)
6137 -- Default_Name (Node2) (set to Empty if no subprogram default)
6138 -- Box_Present (Flag15)
6140 -- Note: if no subprogram default is present, then Name is set
6141 -- to Empty, and Box_Present is False.
6143 ------------------------------
6144 -- 12.6 Subprogram Default --
6145 ------------------------------
6147 -- SUBPROGRAM_DEFAULT ::= DEFAULT_NAME | <>
6149 -- There is no separate node in the tree for a subprogram default.
6150 -- Instead the parent (N_Formal_Concrete_Subprogram_Declaration
6151 -- or N_Formal_Abstract_Subprogram_Declaration) node contains the
6152 -- default name or box indication, as needed.
6154 ------------------------
6155 -- 12.6 Default Name --
6156 ------------------------
6158 -- DEFAULT_NAME ::= NAME
6160 --------------------------------------
6161 -- 12.7 Formal Package Declaration --
6162 --------------------------------------
6164 -- FORMAL_PACKAGE_DECLARATION ::=
6165 -- with package DEFINING_IDENTIFIER
6166 -- is new generic_package_NAME FORMAL_PACKAGE_ACTUAL_PART;
6168 -- Note: formal package declarations not allowed in Ada 83 mode
6170 -- N_Formal_Package_Declaration
6171 -- Sloc points to WITH
6172 -- Defining_Identifier (Node1)
6174 -- Generic_Associations (List3) (set to No_List if (<>) case or
6175 -- empty generic actual part)
6176 -- Box_Present (Flag15)
6177 -- Instance_Spec (Node5-Sem)
6178 -- ABE_Is_Certain (Flag18-Sem)
6180 --------------------------------------
6181 -- 12.7 Formal Package Actual Part --
6182 --------------------------------------
6184 -- FORMAL_PACKAGE_ACTUAL_PART ::=
6186 -- | [GENERIC_ACTUAL_PART]
6187 -- (FORMAL_PACKAGE_ASSOCIATION {. FORMAL_PACKAGE_ASSOCIATION}
6189 -- FORMAL_PACKAGE_ASSOCIATION ::=
6190 -- GENERIC_ASSOCIATION
6191 -- | GENERIC_FORMAL_PARAMETER_SELECTOR_NAME => <>
6193 -- There is no explicit node in the tree for a formal package actual
6194 -- part. Instead the information appears in the parent node (i.e. the
6195 -- formal package declaration node itself).
6197 -- There is no explicit node for a formal package association. All of
6198 -- them are represented either by a generic association, possibly with
6199 -- Box_Present, or by an N_Others_Choice.
6201 ---------------------------------
6202 -- 13.1 Representation clause --
6203 ---------------------------------
6205 -- REPRESENTATION_CLAUSE ::=
6206 -- ATTRIBUTE_DEFINITION_CLAUSE
6207 -- | ENUMERATION_REPRESENTATION_CLAUSE
6208 -- | RECORD_REPRESENTATION_CLAUSE
6211 ----------------------
6212 -- 13.1 Local Name --
6213 ----------------------
6217 -- | DIRECT_NAME'ATTRIBUTE_DESIGNATOR
6218 -- | library_unit_NAME
6220 -- The construct DIRECT_NAME'ATTRIBUTE_DESIGNATOR appears in the tree
6221 -- as an attribute reference, which has essentially the same form.
6223 ---------------------------------------
6224 -- 13.3 Attribute definition clause --
6225 ---------------------------------------
6227 -- ATTRIBUTE_DEFINITION_CLAUSE ::=
6228 -- for LOCAL_NAME'ATTRIBUTE_DESIGNATOR use EXPRESSION;
6229 -- | for LOCAL_NAME'ATTRIBUTE_DESIGNATOR use NAME;
6231 -- In Ada 83, the expression must be a simple expression and the
6232 -- local name must be a direct name.
6234 -- Note: the only attribute definition clause that is processed by
6235 -- gigi is an address clause. For all other cases, the information
6236 -- is extracted by the front end and either results in setting entity
6237 -- information, e.g. Esize for the Size clause, or in appropriate
6238 -- expansion actions (e.g. in the case of Storage_Size).
6240 -- For an address clause, Gigi constructs the appropriate addressing
6241 -- code. It also ensures that no aliasing optimizations are made
6242 -- for the object for which the address clause appears.
6244 -- Note: for an address clause used to achieve an overlay:
6248 -- for B'Address use A'Address;
6250 -- the above rule means that Gigi will ensure that no optimizations
6251 -- will be made for B that would violate the implementation advice
6252 -- of RM 13.3(19). However, this advice applies only to B and not
6253 -- to A, which seems unfortunate. The GNAT front end will mark the
6254 -- object A as volatile to also prevent unwanted optimization
6255 -- assumptions based on no aliasing being made for B.
6257 -- N_Attribute_Definition_Clause
6258 -- Sloc points to FOR
6259 -- Name (Node2) the local name
6260 -- Chars (Name1) the identifier name from the attribute designator
6261 -- Expression (Node3) the expression or name
6262 -- Entity (Node4-Sem)
6263 -- Next_Rep_Item (Node5-Sem)
6264 -- From_At_Mod (Flag4-Sem)
6265 -- Check_Address_Alignment (Flag11-Sem)
6266 -- Address_Warning_Posted (Flag18-Sem)
6268 ---------------------------------------------
6269 -- 13.4 Enumeration representation clause --
6270 ---------------------------------------------
6272 -- ENUMERATION_REPRESENTATION_CLAUSE ::=
6273 -- for first_subtype_LOCAL_NAME use ENUMERATION_AGGREGATE;
6275 -- In Ada 83, the name must be a direct name
6277 -- N_Enumeration_Representation_Clause
6278 -- Sloc points to FOR
6279 -- Identifier (Node1) direct name
6280 -- Array_Aggregate (Node3)
6281 -- Next_Rep_Item (Node5-Sem)
6283 ---------------------------------
6284 -- 13.4 Enumeration aggregate --
6285 ---------------------------------
6287 -- ENUMERATION_AGGREGATE ::= ARRAY_AGGREGATE
6289 ------------------------------------------
6290 -- 13.5.1 Record representation clause --
6291 ------------------------------------------
6293 -- RECORD_REPRESENTATION_CLAUSE ::=
6294 -- for first_subtype_LOCAL_NAME use
6295 -- record [MOD_CLAUSE]
6296 -- {COMPONENT_CLAUSE}
6299 -- Gigi restriction: Mod_Clause is always Empty (if present it is
6300 -- replaced by a corresponding Alignment attribute definition clause).
6302 -- Note: Component_Clauses can include pragmas
6304 -- N_Record_Representation_Clause
6305 -- Sloc points to FOR
6306 -- Identifier (Node1) direct name
6307 -- Mod_Clause (Node2) (set to Empty if no mod clause present)
6308 -- Component_Clauses (List3)
6309 -- Next_Rep_Item (Node5-Sem)
6311 ------------------------------
6312 -- 13.5.1 Component clause --
6313 ------------------------------
6315 -- COMPONENT_CLAUSE ::=
6316 -- component_LOCAL_NAME at POSITION
6317 -- range FIRST_BIT .. LAST_BIT;
6319 -- N_Component_Clause
6320 -- Sloc points to AT
6321 -- Component_Name (Node1) points to Name or Attribute_Reference
6323 -- First_Bit (Node3)
6326 ----------------------
6327 -- 13.5.1 Position --
6328 ----------------------
6330 -- POSITION ::= static_EXPRESSION
6332 -----------------------
6333 -- 13.5.1 First_Bit --
6334 -----------------------
6336 -- FIRST_BIT ::= static_SIMPLE_EXPRESSION
6338 ----------------------
6339 -- 13.5.1 Last_Bit --
6340 ----------------------
6342 -- LAST_BIT ::= static_SIMPLE_EXPRESSION
6344 --------------------------
6345 -- 13.8 Code statement --
6346 --------------------------
6348 -- CODE_STATEMENT ::= QUALIFIED_EXPRESSION;
6350 -- Note: in GNAT, the qualified expression has the form
6352 -- Asm_Insn'(Asm (...));
6354 -- See package System.Machine_Code in file s-maccod.ads for details on
6355 -- the allowed parameters to Asm. There are two ways this node can
6356 -- arise, as a code statement, in which case the expression is the
6357 -- qualified expression, or as a result of the expansion of an intrinsic
6358 -- call to the Asm or Asm_Input procedure.
6361 -- Sloc points to first token of the expression
6362 -- Expression (Node3)
6364 -- Note: package Exp_Code contains an abstract functional interface
6365 -- for use by Gigi in accessing the data from N_Code_Statement nodes.
6367 ------------------------
6368 -- 13.12 Restriction --
6369 ------------------------
6372 -- restriction_IDENTIFIER
6373 -- | restriction_parameter_IDENTIFIER => EXPRESSION
6375 -- There is no explicit node for restrictions. Instead the restriction
6376 -- appears in normal pragma syntax as a pragma argument association,
6377 -- which has the same syntactic form.
6379 --------------------------
6380 -- B.2 Shift Operators --
6381 --------------------------
6383 -- Calls to the intrinsic shift functions are converted to one of
6384 -- the following shift nodes, which have the form of normal binary
6385 -- operator names. Note that for a given shift operation, one node
6386 -- covers all possible types, as for normal operators.
6388 -- Note: it is perfectly permissible for the expander to generate
6389 -- shift operation nodes directly, in which case they will be analyzed
6390 -- and parsed in the usual manner.
6392 -- Sprint syntax: shift-function-name!(expr, count)
6394 -- Note: the Left_Opnd field holds the first argument (the value to
6395 -- be shifted). The Right_Opnd field holds the second argument (the
6396 -- shift count). The Chars field is the name of the intrinsic function.
6399 -- Sloc points to the function name
6400 -- plus fields for binary operator
6401 -- plus fields for expression
6402 -- Shift_Count_OK (Flag4-Sem)
6404 -- N_Op_Rotate_Right
6405 -- Sloc points to the function name
6406 -- plus fields for binary operator
6407 -- plus fields for expression
6408 -- Shift_Count_OK (Flag4-Sem)
6411 -- Sloc points to the function name
6412 -- plus fields for binary operator
6413 -- plus fields for expression
6414 -- Shift_Count_OK (Flag4-Sem)
6416 -- N_Op_Shift_Right_Arithmetic
6417 -- Sloc points to the function name
6418 -- plus fields for binary operator
6419 -- plus fields for expression
6420 -- Shift_Count_OK (Flag4-Sem)
6423 -- Sloc points to the function name
6424 -- plus fields for binary operator
6425 -- plus fields for expression
6426 -- Shift_Count_OK (Flag4-Sem)
6428 --------------------------
6429 -- Obsolescent Features --
6430 --------------------------
6432 -- The syntax descriptions and tree nodes for obsolescent features are
6433 -- grouped together, corresponding to their location in appendix I in
6434 -- the RM. However, parsing and semantic analysis for these constructs
6435 -- is located in an appropriate chapter (see individual notes).
6437 ---------------------------
6438 -- J.3 Delta Constraint --
6439 ---------------------------
6441 -- Note: the parse routine for this construct is located in section
6442 -- 3.5.9 of Par-Ch3, and semantic analysis is in Sem_Ch3, which is
6443 -- where delta constraint logically belongs.
6445 -- DELTA_CONSTRAINT ::= DELTA static_EXPRESSION [RANGE_CONSTRAINT]
6447 -- N_Delta_Constraint
6448 -- Sloc points to DELTA
6449 -- Delta_Expression (Node3)
6450 -- Range_Constraint (Node4) (set to Empty if not present)
6452 --------------------
6454 --------------------
6456 -- AT_CLAUSE ::= for DIRECT_NAME use at EXPRESSION;
6458 -- Note: the parse routine for this construct is located in Par-Ch13,
6459 -- and the semantic analysis is in Sem_Ch13, where at clause logically
6460 -- belongs if it were not obsolescent.
6462 -- Note: in Ada 83 the expression must be a simple expression
6464 -- Gigi restriction: This node never appears, it is rewritten as an
6465 -- address attribute definition clause.
6468 -- Sloc points to FOR
6469 -- Identifier (Node1)
6470 -- Expression (Node3)
6472 ---------------------
6473 -- J.8 Mod clause --
6474 ---------------------
6476 -- MOD_CLAUSE ::= at mod static_EXPRESSION;
6478 -- Note: the parse routine for this construct is located in Par-Ch13,
6479 -- and the semantic analysis is in Sem_Ch13, where mod clause logically
6480 -- belongs if it were not obsolescent.
6482 -- Note: in Ada 83, the expression must be a simple expression
6484 -- Gigi restriction: this node never appears. It is replaced
6485 -- by a corresponding Alignment attribute definition clause.
6487 -- Note: pragmas can appear before and after the MOD_CLAUSE since
6488 -- its name has "clause" in it. This is rather strange, but is quite
6489 -- definitely specified. The pragmas before are collected in the
6490 -- Pragmas_Before field of the mod clause node itself, and pragmas
6491 -- after are simply swallowed up in the list of component clauses.
6494 -- Sloc points to AT
6495 -- Expression (Node3)
6496 -- Pragmas_Before (List4) Pragmas before mod clause (No_List if none)
6498 --------------------
6499 -- Semantic Nodes --
6500 --------------------
6502 -- These semantic nodes are used to hold additional semantic information.
6503 -- They are inserted into the tree as a result of semantic processing.
6504 -- Although there are no legitimate source syntax constructions that
6505 -- correspond directly to these nodes, we need a source syntax for the
6506 -- reconstructed tree printed by Sprint, and the node descriptions here
6507 -- show this syntax.
6509 -- Note: Conditional_Expression is in this section for historical reasons.
6510 -- We will move it to its appropriate place when it is officially approved
6511 -- as an extension (and then we will know what the exact grammar and place
6512 -- in the Reference Manual is!)
6514 ----------------------------
6515 -- Conditional Expression --
6516 ----------------------------
6518 -- This node is used to represent an expression corresponding to the
6519 -- C construct (condition ? then-expression : else_expression), where
6520 -- Expressions is a three element list, whose first expression is the
6521 -- condition, and whose second and third expressions are the then and
6522 -- else expressions respectively.
6524 -- Note: the Then_Actions and Else_Actions fields are always set to
6525 -- No_List in the tree passed to Gigi. These fields are used only
6526 -- for temporary processing purposes in the expander.
6528 -- The Ada language does not permit conditional expressions, however
6529 -- this is under discussion as a possible extension by the ARG, and we
6530 -- have implemented a form of this capability in GNAT under control of
6531 -- the -gnatX switch. The syntax is:
6533 -- CONDITIONAL_EXPRESSION ::=
6534 -- if EXPRESSION then EXPRESSION
6535 -- {elsif EXPRESSION then EXPRESSION}
6536 -- [else EXPRESSION]
6538 -- And we add the additional constructs
6540 -- PRIMARY ::= ( CONDITIONAL_EXPRESION )
6541 -- PRAGMA_ARGUMENT_ASSOCIATION ::= CONDITIONAL_EXPRESSION
6543 -- Note: if we have (IF x1 THEN x2 ELSIF x3 THEN x4 ELSE x5) then it
6544 -- is represented as (IF x1 THEN x2 ELSE (IF x3 THEN x4 ELSE x5)) and
6545 -- the Is_Elsif flag is set on the inner conditional expression.
6547 -- N_Conditional_Expression
6548 -- Sloc points to IF or ELSIF keyword
6549 -- Expressions (List1)
6550 -- Then_Actions (List2-Sem)
6551 -- Else_Actions (List3-Sem)
6552 -- Is_Elsif (Flag13) (set if comes from ELSIF)
6553 -- plus fields for expression
6559 -- The N_Expanded_Name node is used to represent a selected component
6560 -- name that has been resolved to an expanded name. The semantic phase
6561 -- replaces N_Selected_Component nodes that represent names by the use
6562 -- of this node, leaving the N_Selected_Component node used only when
6563 -- the prefix is a record or protected type.
6565 -- The fields of the N_Expanded_Name node are layed out identically
6566 -- to those of the N_Selected_Component node, allowing conversion of
6567 -- an expanded name node to a selected component node to be done
6568 -- easily, see Sinfo.CN.Change_Selected_Component_To_Expanded_Name.
6570 -- There is no special sprint syntax for an expanded name
6573 -- Sloc points to the period
6574 -- Chars (Name1) copy of Chars field of selector name
6576 -- Selector_Name (Node2)
6577 -- Entity (Node4-Sem)
6578 -- Associated_Node (Node4-Sem)
6579 -- Redundant_Use (Flag13-Sem)
6580 -- Has_Private_View (Flag11-Sem) set in generic units.
6581 -- plus fields for expression
6583 --------------------
6584 -- Free Statement --
6585 --------------------
6587 -- The N_Free_Statement node is generated as a result of a call to an
6588 -- instantiation of Unchecked_Deallocation. The instantiation of this
6589 -- generic is handled specially and generates this node directly.
6591 -- Sprint syntax: free expression
6594 -- Sloc is copied from the unchecked deallocation call
6595 -- Expression (Node3) argument to unchecked deallocation call
6596 -- Storage_Pool (Node1-Sem)
6597 -- Procedure_To_Call (Node2-Sem)
6598 -- Actual_Designated_Subtype (Node4-Sem)
6600 -- Note: in the case where a debug source file is generated, the Sloc
6601 -- for this node points to the FREE keyword in the Sprint file output.
6607 -- This node marks the point in a declarative part at which an entity
6608 -- declared therein becomes frozen. The expander places initialization
6609 -- procedures for types at those points. Gigi uses the freezing point
6610 -- to elaborate entities that may depend on previous private types.
6612 -- See the section in Einfo "Delayed Freezing and Elaboration" for
6613 -- a full description of the use of this node.
6615 -- The Entity field points back to the entity for the type (whose
6616 -- Freeze_Node field points back to this freeze node).
6618 -- The Actions field contains a list of declarations and statements
6619 -- generated by the expander which are associated with the freeze
6620 -- node, and are elaborated as though the freeze node were replaced
6621 -- by this sequence of actions.
6623 -- Note: the Sloc field in the freeze node references a construct
6624 -- associated with the freezing point. This is used for posting
6625 -- messages in some error/warning situations, e.g. the case where
6626 -- a primitive operation of a tagged type is declared too late.
6628 -- Sprint syntax: freeze entity-name [
6633 -- Sloc points near freeze point (see above special note)
6634 -- Entity (Node4-Sem)
6635 -- Access_Types_To_Process (Elist2-Sem) (set to No_Elist if none)
6636 -- TSS_Elist (Elist3-Sem) (set to No_Elist if no associated TSS's)
6637 -- Actions (List1) (set to No_List if no freeze actions)
6638 -- First_Subtype_Link (Node5-Sem) (set to Empty if no link)
6640 -- The Actions field holds actions associated with the freeze. These
6641 -- actions are elaborated at the point where the type is frozen.
6643 -- Note: in the case where a debug source file is generated, the Sloc
6644 -- for this node points to the FREEZE keyword in the Sprint file output.
6646 --------------------------------
6647 -- Implicit Label Declaration --
6648 --------------------------------
6650 -- An implicit label declaration is created for every occurrence of a
6651 -- label on a statement or a label on a block or loop. It is chained
6652 -- in the declarations of the innermost enclosing block as specified
6653 -- in RM section 5.1 (3).
6655 -- The Defining_Identifier is the actual identifier for the statement
6656 -- identifier. Note that the occurrence of the label is a reference, NOT
6657 -- the defining occurrence. The defining occurrence occurs at the head
6658 -- of the innermost enclosing block, and is represented by this node.
6660 -- Note: from the grammar, this might better be called an implicit
6661 -- statement identifier declaration, but the term we choose seems
6662 -- friendlier, since at least informally statement identifiers are
6663 -- called labels in both cases (i.e. when used in labels, and when
6664 -- used as the identifiers of blocks and loops).
6666 -- Note: although this is logically a semantic node, since it does not
6667 -- correspond directly to a source syntax construction, these nodes are
6668 -- actually created by the parser in a post pass done just after parsing
6669 -- is complete, before semantic analysis is started (see Par.Labl).
6671 -- Sprint syntax: labelname : label;
6673 -- N_Implicit_Label_Declaration
6674 -- Sloc points to the << of the label
6675 -- Defining_Identifier (Node1)
6676 -- Label_Construct (Node2-Sem)
6678 -- Note: in the case where a debug source file is generated, the Sloc
6679 -- for this node points to the label name in the generated declaration.
6681 ---------------------
6682 -- Itype_Reference --
6683 ---------------------
6685 -- This node is used to create a reference to an Itype. The only purpose
6686 -- is to make sure the Itype is defined if this is the first reference.
6688 -- A typical use of this node is when an Itype is to be referenced in
6689 -- two branches of an IF statement. In this case it is important that
6690 -- the first use of the Itype not be inside the conditional, since then
6691 -- it might not be defined if the other branch of the IF is taken, in
6692 -- the case where the definition generates elaboration code.
6694 -- The Itype field points to the referenced Itype
6696 -- Sprint syntax: reference itype-name
6698 -- N_Itype_Reference
6699 -- Sloc points to the node generating the reference
6700 -- Itype (Node1-Sem)
6702 -- Note: in the case where a debug source file is generated, the Sloc
6703 -- for this node points to the REFERENCE keyword in the file output.
6705 ---------------------
6706 -- Raise_xxx_Error --
6707 ---------------------
6709 -- One of these nodes is created during semantic analysis to replace
6710 -- a node for an expression that is determined to definitely raise
6711 -- the corresponding exception.
6713 -- The N_Raise_xxx_Error node may also stand alone in place
6714 -- of a declaration or statement, in which case it simply causes
6715 -- the exception to be raised (i.e. it is equivalent to a raise
6716 -- statement that raises the corresponding exception). This use
6717 -- is distinguished by the fact that the Etype in this case is
6718 -- Standard_Void_Type, In the subexpression case, the Etype is the
6719 -- same as the type of the subexpression which it replaces.
6721 -- If Condition is empty, then the raise is unconditional. If the
6722 -- Condition field is non-empty, it is a boolean expression which
6723 -- is first evaluated, and the exception is raised only if the
6724 -- value of the expression is True. In the unconditional case, the
6725 -- creation of this node is usually accompanied by a warning message
6726 -- error. The creation of this node will usually be accompanied by a
6727 -- message (unless it appears within the right operand of a short
6728 -- circuit form whose left argument is static and decisively
6729 -- eliminates elaboration of the raise operation. The condition field
6730 -- can ONLY be present when the node is used as a statement form, it
6731 -- may NOT be present in the case where the node appears within an
6734 -- The exception is generated with a message that contains the
6735 -- file name and line number, and then appended text. The Reason
6736 -- code shows the text to be added. The Reason code is an element
6737 -- of the type Types.RT_Exception_Code, and indicates both the
6738 -- message to be added, and the exception to be raised (which must
6739 -- match the node type). The value is stored by storing a Uint which
6740 -- is the Pos value of the enumeration element in this type.
6742 -- Gigi restriction: This expander ensures that the type of the
6743 -- Condition field is always Standard.Boolean, even if the type
6744 -- in the source is some non-standard boolean type.
6746 -- Sprint syntax: [xxx_error "msg"]
6747 -- or: [xxx_error when condition "msg"]
6749 -- N_Raise_Constraint_Error
6750 -- Sloc references related construct
6751 -- Condition (Node1) (set to Empty if no condition)
6753 -- plus fields for expression
6755 -- N_Raise_Program_Error
6756 -- Sloc references related construct
6757 -- Condition (Node1) (set to Empty if no condition)
6759 -- plus fields for expression
6761 -- N_Raise_Storage_Error
6762 -- Sloc references related construct
6763 -- Condition (Node1) (set to Empty if no condition)
6765 -- plus fields for expression
6767 -- Note: Sloc is copied from the expression generating the exception.
6768 -- In the case where a debug source file is generated, the Sloc for
6769 -- this node points to the left bracket in the Sprint file output.
6771 -- Note: the back end may be required to translate these nodes into
6772 -- appropriate goto statements. See description of N_Push/Pop_xxx_Label.
6774 ---------------------------------------------
6775 -- Optimization of Exception Raise to Goto --
6776 ---------------------------------------------
6778 -- In some cases, the front end will determine that any exception raised
6779 -- by the back end for a certain exception should be transformed into a
6782 -- There are three kinds of exceptions raised by the back end (note that
6783 -- for this purpose we consider gigi to be part of the back end in the
6786 -- 1. Exceptions resulting from N_Raise_xxx_Error nodes
6787 -- 2. Exceptions from checks triggered by Do_xxx_Check flags
6788 -- 3. Other cases not specifically marked by the front end
6790 -- Normally all such exceptions are translated into calls to the proper
6791 -- Rcheck_xx procedure, where xx encodes both the exception to be raised
6792 -- and the exception message.
6794 -- The front end may determine that for a particular sequence of code,
6795 -- exceptions in any of these three categories for a particular builtin
6796 -- exception should result in a goto, rather than a call to Rcheck_xx.
6797 -- The exact sequence to be generated is:
6799 -- Local_Raise (exception'Identity);
6802 -- The front end marks such a sequence of code by bracketing it with
6803 -- push and pop nodes:
6805 -- N_Push_xxx_Label (referencing the label)
6807 -- (code where transformation is expected for exception xxx)
6811 -- The use of push/pop reflects the fact that such regions can properly
6812 -- nest, and one special case is a subregion in which no transformation
6813 -- is allowed. Such a region is marked by a N_Push_xxx_Label node whose
6814 -- Exception_Label field is Empty.
6816 -- N_Push_Constraint_Error_Label
6817 -- Sloc references first statement in region covered
6818 -- Exception_Label (Node5-Sem)
6820 -- N_Push_Program_Error_Label
6821 -- Sloc references first statement in region covered
6822 -- Exception_Label (Node5-Sem)
6824 -- N_Push_Storage_Error_Label
6825 -- Sloc references first statement in region covered
6826 -- Exception_Label (Node5-Sem)
6828 -- N_Pop_Constraint_Error_Label
6829 -- Sloc references last statement in region covered
6831 -- N_Pop_Program_Error_Label
6832 -- Sloc references last statement in region covered
6834 -- N_Pop_Storage_Error_Label
6835 -- Sloc references last statement in region covered
6841 -- For a number of purposes, we need to construct references to objects.
6842 -- These references are subsequently treated as normal access values.
6843 -- An example is the construction of the parameter block passed to a
6844 -- task entry. The N_Reference node is provided for this purpose. It is
6845 -- similar in effect to the use of the Unrestricted_Access attribute,
6846 -- and like Unrestricted_Access can be applied to objects which would
6847 -- not be valid prefixes for the Unchecked_Access attribute (e.g.
6848 -- objects which are not aliased, and slices). In addition it can be
6849 -- applied to composite type values as well as objects, including string
6850 -- values and aggregates.
6852 -- Note: we use the Prefix field for this expression so that the
6853 -- resulting node can be treated using common code with the attribute
6854 -- nodes for the 'Access and related attributes. Logically it would make
6855 -- more sense to call it an Expression field, but then we would have to
6856 -- special case the treatment of the N_Reference node.
6858 -- Sprint syntax: prefix'reference
6861 -- Sloc is copied from the expression
6863 -- plus fields for expression
6865 -- Note: in the case where a debug source file is generated, the Sloc
6866 -- for this node points to the quote in the Sprint file output.
6872 -- SCIL nodes are special nodes added to the tree when the CodePeer
6873 -- mode is active. They help the CodePeer backend to locate nodes that
6874 -- require special processing.
6876 -- Major documentation on the general design of the SCIL interface, and
6877 -- in particular detailed description of these nodes is missing and is
6878 -- to be supplied in the future, when the design has finalized ???
6880 -- Meanwhile these nodes should be considered in experimental form, and
6881 -- should be ignored by all code generating back ends. ???
6883 -- N_SCIL_Dispatch_Table_Object_Init
6884 -- Sloc references a declaration node containing a dispatch table
6885 -- SCIL_Related_Node (Node1-Sem)
6886 -- SCIL_Entity (Node4-Sem)
6888 -- N_SCIL_Dispatch_Table_Tag_Init
6889 -- Sloc references a node for a tag initialization
6890 -- SCIL_Related_Node (Node1-Sem)
6891 -- SCIL_Entity (Node4-Sem)
6893 -- N_SCIL_Dispatching_Call
6894 -- Sloc references the node of a dispatching call
6895 -- SCIL_Related_Node (Node1-Sem)
6896 -- SCIL_Target_Prim (Node2-Sem)
6897 -- SCIL_Entity (Node4-Sem)
6898 -- SCIL_Controlling_Tag (Node5-Sem)
6900 -- N_SCIL_Membership_Test
6901 -- Sloc references the node of a membership test
6902 -- SCIL_Related_Node (Node1-Sem)
6903 -- SCIL_Tag_Value (Node5-Sem)
6904 -- SCIL_Entity (Node4-Sem)
6907 -- Sloc references the node of a tag component initialization
6908 -- SCIL_Related_Node (Node1-Sem)
6909 -- SCIL_Entity (Node4-Sem)
6911 ---------------------
6912 -- Subprogram_Info --
6913 ---------------------
6915 -- This node generates the appropriate Subprogram_Info value for a
6916 -- given procedure. See Ada.Exceptions for further details
6918 -- Sprint syntax: subprog'subprogram_info
6920 -- N_Subprogram_Info
6921 -- Sloc points to the entity for the procedure
6922 -- Identifier (Node1) identifier referencing the procedure
6923 -- Etype (Node5-Sem) type (always set to Ada.Exceptions.Code_Loc
6925 -- Note: in the case where a debug source file is generated, the Sloc
6926 -- for this node points to the quote in the Sprint file output.
6928 --------------------------
6929 -- Unchecked Expression --
6930 --------------------------
6932 -- An unchecked expression is one that must be analyzed and resolved
6933 -- with all checks off, regardless of the current setting of scope
6936 -- Sprint syntax: `(expression)
6938 -- Note: this node is always removed from the tree (and replaced by
6939 -- its constituent expression) on completion of analysis, so it only
6940 -- appears in intermediate trees, and will never be seen by Gigi.
6942 -- N_Unchecked_Expression
6943 -- Sloc is a copy of the Sloc of the expression
6944 -- Expression (Node3)
6945 -- plus fields for expression
6947 -- Note: in the case where a debug source file is generated, the Sloc
6948 -- for this node points to the back quote in the Sprint file output.
6950 -------------------------------
6951 -- Unchecked Type Conversion --
6952 -------------------------------
6954 -- An unchecked type conversion node represents the semantic action
6955 -- corresponding to a call to an instantiation of Unchecked_Conversion.
6956 -- It is generated as a result of actual use of Unchecked_Conversion
6957 -- and also the expander generates unchecked type conversion nodes
6958 -- directly for expansion of complex semantic actions.
6960 -- Note: an unchecked type conversion is a variable as far as the
6961 -- semantics are concerned, which is convenient for the expander.
6962 -- This does not change what Ada source programs are legal, since
6963 -- clearly a function call to an instantiation of Unchecked_Conversion
6964 -- is not a variable in any case.
6966 -- Sprint syntax: subtype-mark!(expression)
6968 -- N_Unchecked_Type_Conversion
6969 -- Sloc points to related node in source
6970 -- Subtype_Mark (Node4)
6971 -- Expression (Node3)
6972 -- Kill_Range_Check (Flag11-Sem)
6973 -- No_Truncation (Flag17-Sem)
6974 -- plus fields for expression
6976 -- Note: in the case where a debug source file is generated, the Sloc
6977 -- for this node points to the exclamation in the Sprint file output.
6979 -----------------------------------
6980 -- Validate_Unchecked_Conversion --
6981 -----------------------------------
6983 -- The front end does most of the validation of unchecked conversion,
6984 -- including checking sizes (this is done after the back end is called
6985 -- to take advantage of back-annotation of calculated sizes).
6987 -- The front end also deals with specific cases that are not allowed
6988 -- e.g. involving unconstrained array types.
6990 -- For the case of the standard gigi backend, this means that all
6991 -- checks are done in the front-end.
6993 -- However, in the case of specialized back-ends, notably the JVM
6994 -- backend for JGNAT, additional requirements and restrictions apply
6995 -- to unchecked conversion, and these are most conveniently performed
6996 -- in the specialized back-end.
6998 -- To accommodate this requirement, for such back ends, the following
6999 -- special node is generated recording an unchecked conversion that
7000 -- needs to be validated. The back end should post an appropriate
7001 -- error message if the unchecked conversion is invalid or warrants
7002 -- a special warning message.
7004 -- Source_Type and Target_Type point to the entities for the two
7005 -- types involved in the unchecked conversion instantiation that
7006 -- is to be validated.
7008 -- Sprint syntax: validate Unchecked_Conversion (source, target);
7010 -- N_Validate_Unchecked_Conversion
7011 -- Sloc points to instantiation (location for warning message)
7012 -- Source_Type (Node1-Sem)
7013 -- Target_Type (Node2-Sem)
7015 -- Note: in the case where a debug source file is generated, the Sloc
7016 -- for this node points to the VALIDATE keyword in the file output.
7022 -- Used as the contents of the Nkind field of the dummy Empty node
7023 -- and in some other situations to indicate an uninitialized value.
7026 -- Chars (Name1) is set to No_Name
7032 -- Used as the contents of the Nkind field of the dummy Error node.
7033 -- Has an Etype field, which gets set to Any_Type later on, to help
7034 -- error recovery (Error_Posted is also set in the Error node).
7037 -- Chars (Name1) is set to Error_Name
7038 -- Etype (Node5-Sem)
7040 --------------------------
7041 -- Node Type Definition --
7042 --------------------------
7044 -- The following is the definition of the Node_Kind type. As previously
7045 -- discussed, this is separated off to allow rearrangement of the order
7046 -- to facilitate definition of subtype ranges. The comments show the
7047 -- subtype classes which apply to each set of node kinds. The first
7048 -- entry in the comment characterizes the following list of nodes.
7053 -- N_Representation_Clause
7057 N_Enumeration_Representation_Clause,
7059 N_Record_Representation_Clause,
7061 -- N_Representation_Clause, N_Has_Chars
7063 N_Attribute_Definition_Clause,
7068 N_Pragma_Argument_Association,
7074 -- N_Entity, N_Has_Etype, N_Has_Chars
7076 N_Defining_Character_Literal,
7077 N_Defining_Identifier,
7078 N_Defining_Operator_Symbol,
7080 -- N_Subexpr, N_Has_Etype, N_Has_Chars, N_Has_Entity
7084 -- N_Direct_Name, N_Subexpr, N_Has_Etype,
7085 -- N_Has_Chars, N_Has_Entity
7090 -- N_Direct_Name, N_Subexpr, N_Has_Etype,
7091 -- N_Has_Chars, N_Has_Entity
7093 N_Character_Literal,
7095 -- N_Binary_Op, N_Op, N_Subexpr,
7096 -- N_Has_Etype, N_Has_Chars, N_Has_Entity
7103 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Treat_Fixed_As_Integer
7104 -- N_Has_Etype, N_Has_Chars, N_Has_Entity, N_Multiplying_Operator
7111 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Etype
7112 -- N_Has_Entity, N_Has_Chars, N_Op_Boolean
7116 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Etype
7117 -- N_Has_Entity, N_Has_Chars, N_Op_Boolean, N_Op_Compare
7126 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Etype
7127 -- N_Has_Entity, N_Has_Chars, N_Op_Boolean
7132 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Etype,
7133 -- N_Op_Shift, N_Has_Chars, N_Has_Entity
7139 N_Op_Shift_Right_Arithmetic,
7141 -- N_Unary_Op, N_Op, N_Subexpr, N_Has_Etype,
7142 -- N_Has_Chars, N_Has_Entity
7149 -- N_Subexpr, N_Has_Etype, N_Has_Entity
7151 N_Attribute_Reference,
7153 -- N_Subexpr, N_Has_Etype, N_Membership_Test
7158 -- N_Subexpr, N_Has_Etype, N_Short_Circuit
7163 -- N_Subexpr, N_Has_Etype
7165 N_Conditional_Expression,
7166 N_Explicit_Dereference,
7168 N_Indexed_Component,
7171 N_Procedure_Call_Statement,
7172 N_Qualified_Expression,
7174 -- N_Raise_xxx_Error, N_Subexpr, N_Has_Etype
7176 N_Raise_Constraint_Error,
7177 N_Raise_Program_Error,
7178 N_Raise_Storage_Error,
7180 -- N_Subexpr, N_Has_Etype
7184 N_Extension_Aggregate,
7188 N_Selected_Component,
7193 N_Unchecked_Expression,
7194 N_Unchecked_Type_Conversion,
7198 N_Subtype_Indication,
7202 N_Component_Declaration,
7203 N_Entry_Declaration,
7204 N_Formal_Object_Declaration,
7205 N_Formal_Type_Declaration,
7206 N_Full_Type_Declaration,
7207 N_Incomplete_Type_Declaration,
7208 N_Loop_Parameter_Specification,
7209 N_Object_Declaration,
7210 N_Protected_Type_Declaration,
7211 N_Private_Extension_Declaration,
7212 N_Private_Type_Declaration,
7213 N_Subtype_Declaration,
7215 -- N_Subprogram_Specification, N_Declaration
7217 N_Function_Specification,
7218 N_Procedure_Specification,
7220 -- N_Access_To_Subprogram_Definition
7222 N_Access_Function_Definition,
7223 N_Access_Procedure_Definition,
7225 -- N_Later_Decl_Item
7227 N_Task_Type_Declaration,
7229 -- N_Body_Stub, N_Later_Decl_Item
7231 N_Package_Body_Stub,
7232 N_Protected_Body_Stub,
7233 N_Subprogram_Body_Stub,
7236 -- N_Generic_Instantiation, N_Later_Decl_Item
7237 -- N_Subprogram_Instantiation
7239 N_Function_Instantiation,
7240 N_Procedure_Instantiation,
7242 -- N_Generic_Instantiation, N_Later_Decl_Item
7244 N_Package_Instantiation,
7246 -- N_Unit_Body, N_Later_Decl_Item, N_Proper_Body
7251 -- N_Later_Decl_Item, N_Proper_Body
7256 -- N_Later_Decl_Item
7258 N_Implicit_Label_Declaration,
7259 N_Package_Declaration,
7260 N_Single_Task_Declaration,
7261 N_Subprogram_Declaration,
7262 N_Use_Package_Clause,
7264 -- N_Generic_Declaration, N_Later_Decl_Item
7266 N_Generic_Package_Declaration,
7267 N_Generic_Subprogram_Declaration,
7269 -- N_Array_Type_Definition
7271 N_Constrained_Array_Definition,
7272 N_Unconstrained_Array_Definition,
7274 -- N_Renaming_Declaration
7276 N_Exception_Renaming_Declaration,
7277 N_Object_Renaming_Declaration,
7278 N_Package_Renaming_Declaration,
7279 N_Subprogram_Renaming_Declaration,
7281 -- N_Generic_Renaming_Declaration, N_Renaming_Declaration
7283 N_Generic_Function_Renaming_Declaration,
7284 N_Generic_Package_Renaming_Declaration,
7285 N_Generic_Procedure_Renaming_Declaration,
7287 -- N_Statement_Other_Than_Procedure_Call
7291 N_Assignment_Statement,
7292 N_Asynchronous_Select,
7296 N_Conditional_Entry_Call,
7298 -- N_Statement_Other_Than_Procedure_Call. N_Delay_Statement
7300 N_Delay_Relative_Statement,
7301 N_Delay_Until_Statement,
7303 -- N_Statement_Other_Than_Procedure_Call
7305 N_Entry_Call_Statement,
7311 N_Requeue_Statement,
7312 N_Return_Statement, -- renamed as N_Simple_Return_Statement below
7313 N_Extended_Return_Statement,
7317 -- N_Statement_Other_Than_Procedure_Call, N_Has_Condition
7324 N_Accept_Alternative,
7325 N_Delay_Alternative,
7327 N_Entry_Body_Formal_Part,
7329 N_Terminate_Alternative,
7331 -- N_Formal_Subprogram_Declaration
7333 N_Formal_Abstract_Subprogram_Declaration,
7334 N_Formal_Concrete_Subprogram_Declaration,
7336 -- N_Push_xxx_Label, N_Push_Pop_xxx_Label
7338 N_Push_Constraint_Error_Label,
7339 N_Push_Program_Error_Label,
7340 N_Push_Storage_Error_Label,
7342 -- N_Pop_xxx_Label, N_Push_Pop_xxx_Label
7344 N_Pop_Constraint_Error_Label,
7345 N_Pop_Program_Error_Label,
7346 N_Pop_Storage_Error_Label,
7350 N_SCIL_Dispatch_Table_Object_Init,
7351 N_SCIL_Dispatch_Table_Tag_Init,
7352 N_SCIL_Dispatching_Call,
7353 N_SCIL_Membership_Test,
7356 -- Other nodes (not part of any subtype class)
7359 N_Abstract_Subprogram_Declaration,
7360 N_Access_Definition,
7361 N_Access_To_Object_Definition,
7362 N_Case_Statement_Alternative,
7364 N_Compilation_Unit_Aux,
7365 N_Component_Association,
7366 N_Component_Definition,
7368 N_Derived_Type_Definition,
7369 N_Decimal_Fixed_Point_Definition,
7370 N_Defining_Program_Unit_Name,
7373 N_Digits_Constraint,
7374 N_Discriminant_Association,
7375 N_Discriminant_Specification,
7376 N_Enumeration_Type_Definition,
7378 N_Entry_Call_Alternative,
7379 N_Entry_Index_Specification,
7380 N_Exception_Declaration,
7381 N_Exception_Handler,
7382 N_Floating_Point_Definition,
7383 N_Formal_Decimal_Fixed_Point_Definition,
7384 N_Formal_Derived_Type_Definition,
7385 N_Formal_Discrete_Type_Definition,
7386 N_Formal_Floating_Point_Definition,
7387 N_Formal_Modular_Type_Definition,
7388 N_Formal_Ordinary_Fixed_Point_Definition,
7389 N_Formal_Package_Declaration,
7390 N_Formal_Private_Type_Definition,
7391 N_Formal_Signed_Integer_Type_Definition,
7393 N_Generic_Association,
7394 N_Handled_Sequence_Of_Statements,
7395 N_Index_Or_Discriminant_Constraint,
7398 N_Modular_Type_Definition,
7399 N_Number_Declaration,
7400 N_Ordinary_Fixed_Point_Definition,
7402 N_Package_Specification,
7403 N_Parameter_Association,
7404 N_Parameter_Specification,
7406 N_Protected_Definition,
7408 N_Real_Range_Specification,
7409 N_Record_Definition,
7410 N_Signed_Integer_Type_Definition,
7411 N_Single_Protected_Declaration,
7414 N_Triggering_Alternative,
7416 N_Validate_Unchecked_Conversion,
7422 for Node_Kind'Size use 8;
7423 -- The data structures in Atree assume this!
7425 ----------------------------
7426 -- Node Class Definitions --
7427 ----------------------------
7429 subtype N_Access_To_Subprogram_Definition is Node_Kind range
7430 N_Access_Function_Definition ..
7431 N_Access_Procedure_Definition;
7433 subtype N_Array_Type_Definition is Node_Kind range
7434 N_Constrained_Array_Definition ..
7435 N_Unconstrained_Array_Definition;
7437 subtype N_Binary_Op is Node_Kind range
7439 N_Op_Shift_Right_Arithmetic;
7441 subtype N_Body_Stub is Node_Kind range
7442 N_Package_Body_Stub ..
7445 subtype N_Declaration is Node_Kind range
7446 N_Component_Declaration ..
7447 N_Procedure_Specification;
7448 -- Note: this includes all constructs normally thought of as declarations
7449 -- except those which are separately grouped as later declarations.
7451 subtype N_Delay_Statement is Node_Kind range
7452 N_Delay_Relative_Statement ..
7453 N_Delay_Until_Statement;
7455 subtype N_Direct_Name is Node_Kind range
7457 N_Character_Literal;
7459 subtype N_Entity is Node_Kind range
7460 N_Defining_Character_Literal ..
7461 N_Defining_Operator_Symbol;
7463 subtype N_Formal_Subprogram_Declaration is Node_Kind range
7464 N_Formal_Abstract_Subprogram_Declaration ..
7465 N_Formal_Concrete_Subprogram_Declaration;
7467 subtype N_Generic_Declaration is Node_Kind range
7468 N_Generic_Package_Declaration ..
7469 N_Generic_Subprogram_Declaration;
7471 subtype N_Generic_Instantiation is Node_Kind range
7472 N_Function_Instantiation ..
7473 N_Package_Instantiation;
7475 subtype N_Generic_Renaming_Declaration is Node_Kind range
7476 N_Generic_Function_Renaming_Declaration ..
7477 N_Generic_Procedure_Renaming_Declaration;
7479 subtype N_Has_Chars is Node_Kind range
7480 N_Attribute_Definition_Clause ..
7483 subtype N_Has_Entity is Node_Kind range
7485 N_Attribute_Reference;
7486 -- Nodes that have Entity fields
7487 -- Warning: DOES NOT INCLUDE N_Freeze_Entity!
7489 subtype N_Has_Etype is Node_Kind range
7491 N_Subtype_Indication;
7493 subtype N_Has_Treat_Fixed_As_Integer is Node_Kind range
7497 subtype N_Multiplying_Operator is Node_Kind range
7501 subtype N_Later_Decl_Item is Node_Kind range
7502 N_Task_Type_Declaration ..
7503 N_Generic_Subprogram_Declaration;
7504 -- Note: this is Ada 83 relevant only (see Ada 83 RM 3.9 (2)) and includes
7505 -- only those items which can appear as later declarative items. This also
7506 -- includes N_Implicit_Label_Declaration which is not specifically in the
7507 -- grammar but may appear as a valid later declarative items. It does NOT
7508 -- include N_Pragma which can also appear among later declarative items.
7509 -- It does however include N_Protected_Body, which is a bit peculiar, but
7510 -- harmless since this cannot appear in Ada 83 mode anyway.
7512 subtype N_Membership_Test is Node_Kind range
7516 subtype N_Op is Node_Kind range
7520 subtype N_Op_Boolean is Node_Kind range
7523 -- Binary operators which take operands of a boolean type, and yield
7524 -- a result of a boolean type.
7526 subtype N_Op_Compare is Node_Kind range
7530 subtype N_Op_Shift is Node_Kind range
7532 N_Op_Shift_Right_Arithmetic;
7534 subtype N_Proper_Body is Node_Kind range
7538 subtype N_Push_xxx_Label is Node_Kind range
7539 N_Push_Constraint_Error_Label ..
7540 N_Push_Storage_Error_Label;
7542 subtype N_Pop_xxx_Label is Node_Kind range
7543 N_Pop_Constraint_Error_Label ..
7544 N_Pop_Storage_Error_Label;
7546 subtype N_Push_Pop_xxx_Label is Node_Kind range
7547 N_Push_Constraint_Error_Label ..
7548 N_Pop_Storage_Error_Label;
7550 subtype N_Raise_xxx_Error is Node_Kind range
7551 N_Raise_Constraint_Error ..
7552 N_Raise_Storage_Error;
7554 subtype N_Renaming_Declaration is Node_Kind range
7555 N_Exception_Renaming_Declaration ..
7556 N_Generic_Procedure_Renaming_Declaration;
7558 subtype N_Representation_Clause is Node_Kind range
7560 N_Attribute_Definition_Clause;
7562 subtype N_Short_Circuit is Node_Kind range
7566 subtype N_SCIL_Node is Node_Kind range
7567 N_SCIL_Dispatch_Table_Object_Init ..
7570 subtype N_Statement_Other_Than_Procedure_Call is Node_Kind range
7571 N_Abort_Statement ..
7573 -- Note that this includes all statement types except for the cases of the
7574 -- N_Procedure_Call_Statement which is considered to be a subexpression
7575 -- (since overloading is possible, so it needs to go through the normal
7576 -- overloading resolution for expressions).
7578 subtype N_Subprogram_Instantiation is Node_Kind range
7579 N_Function_Instantiation ..
7580 N_Procedure_Instantiation;
7582 subtype N_Has_Condition is Node_Kind range
7584 N_Terminate_Alternative;
7585 -- Nodes with condition fields (does not include N_Raise_xxx_Error)
7587 subtype N_Subexpr is Node_Kind range
7589 N_Unchecked_Type_Conversion;
7590 -- Nodes with expression fields
7592 subtype N_Subprogram_Specification is Node_Kind range
7593 N_Function_Specification ..
7594 N_Procedure_Specification;
7596 subtype N_Unary_Op is Node_Kind range
7600 subtype N_Unit_Body is Node_Kind range
7604 ---------------------------
7605 -- Node Access Functions --
7606 ---------------------------
7608 -- The following functions return the contents of the indicated field of
7609 -- the node referenced by the argument, which is a Node_Id. They provide
7610 -- logical access to fields in the node which could be accessed using the
7611 -- Atree.Unchecked_Access package, but the idea is always to use these
7612 -- higher level routines which preserve strong typing. In debug mode,
7613 -- these routines check that they are being applied to an appropriate
7614 -- node, as well as checking that the node is in range.
7616 function ABE_Is_Certain
7617 (N : Node_Id) return Boolean; -- Flag18
7619 function Abort_Present
7620 (N : Node_Id) return Boolean; -- Flag15
7622 function Abortable_Part
7623 (N : Node_Id) return Node_Id; -- Node2
7625 function Abstract_Present
7626 (N : Node_Id) return Boolean; -- Flag4
7628 function Accept_Handler_Records
7629 (N : Node_Id) return List_Id; -- List5
7631 function Accept_Statement
7632 (N : Node_Id) return Node_Id; -- Node2
7634 function Access_Definition
7635 (N : Node_Id) return Node_Id; -- Node3
7637 function Access_To_Subprogram_Definition
7638 (N : Node_Id) return Node_Id; -- Node3
7640 function Access_Types_To_Process
7641 (N : Node_Id) return Elist_Id; -- Elist2
7644 (N : Node_Id) return List_Id; -- List1
7646 function Activation_Chain_Entity
7647 (N : Node_Id) return Node_Id; -- Node3
7649 function Acts_As_Spec
7650 (N : Node_Id) return Boolean; -- Flag4
7652 function Actual_Designated_Subtype
7653 (N : Node_Id) return Node_Id; -- Node4
7655 function Address_Warning_Posted
7656 (N : Node_Id) return Boolean; -- Flag18
7658 function Aggregate_Bounds
7659 (N : Node_Id) return Node_Id; -- Node3
7661 function Aliased_Present
7662 (N : Node_Id) return Boolean; -- Flag4
7665 (N : Node_Id) return Boolean; -- Flag11
7667 function All_Present
7668 (N : Node_Id) return Boolean; -- Flag15
7670 function Alternatives
7671 (N : Node_Id) return List_Id; -- List4
7673 function Ancestor_Part
7674 (N : Node_Id) return Node_Id; -- Node3
7676 function Array_Aggregate
7677 (N : Node_Id) return Node_Id; -- Node3
7679 function Assignment_OK
7680 (N : Node_Id) return Boolean; -- Flag15
7682 function Associated_Node
7683 (N : Node_Id) return Node_Id; -- Node4
7685 function At_End_Proc
7686 (N : Node_Id) return Node_Id; -- Node1
7688 function Attribute_Name
7689 (N : Node_Id) return Name_Id; -- Name2
7691 function Aux_Decls_Node
7692 (N : Node_Id) return Node_Id; -- Node5
7694 function Backwards_OK
7695 (N : Node_Id) return Boolean; -- Flag6
7697 function Bad_Is_Detected
7698 (N : Node_Id) return Boolean; -- Flag15
7701 (N : Node_Id) return Boolean; -- Flag5
7703 function Body_Required
7704 (N : Node_Id) return Boolean; -- Flag13
7706 function Body_To_Inline
7707 (N : Node_Id) return Node_Id; -- Node3
7709 function Box_Present
7710 (N : Node_Id) return Boolean; -- Flag15
7712 function Char_Literal_Value
7713 (N : Node_Id) return Uint; -- Uint2
7716 (N : Node_Id) return Name_Id; -- Name1
7718 function Check_Address_Alignment
7719 (N : Node_Id) return Boolean; -- Flag11
7721 function Choice_Parameter
7722 (N : Node_Id) return Node_Id; -- Node2
7725 (N : Node_Id) return List_Id; -- List1
7727 function Coextensions
7728 (N : Node_Id) return Elist_Id; -- Elist4
7730 function Comes_From_Extended_Return_Statement
7731 (N : Node_Id) return Boolean; -- Flag18
7733 function Compile_Time_Known_Aggregate
7734 (N : Node_Id) return Boolean; -- Flag18
7736 function Component_Associations
7737 (N : Node_Id) return List_Id; -- List2
7739 function Component_Clauses
7740 (N : Node_Id) return List_Id; -- List3
7742 function Component_Definition
7743 (N : Node_Id) return Node_Id; -- Node4
7745 function Component_Items
7746 (N : Node_Id) return List_Id; -- List3
7748 function Component_List
7749 (N : Node_Id) return Node_Id; -- Node1
7751 function Component_Name
7752 (N : Node_Id) return Node_Id; -- Node1
7754 function Componentwise_Assignment
7755 (N : Node_Id) return Boolean; -- Flag14
7758 (N : Node_Id) return Node_Id; -- Node1
7760 function Condition_Actions
7761 (N : Node_Id) return List_Id; -- List3
7763 function Config_Pragmas
7764 (N : Node_Id) return List_Id; -- List4
7766 function Constant_Present
7767 (N : Node_Id) return Boolean; -- Flag17
7770 (N : Node_Id) return Node_Id; -- Node3
7772 function Constraints
7773 (N : Node_Id) return List_Id; -- List1
7775 function Context_Installed
7776 (N : Node_Id) return Boolean; -- Flag13
7778 function Context_Pending
7779 (N : Node_Id) return Boolean; -- Flag16
7781 function Context_Items
7782 (N : Node_Id) return List_Id; -- List1
7784 function Controlling_Argument
7785 (N : Node_Id) return Node_Id; -- Node1
7787 function Conversion_OK
7788 (N : Node_Id) return Boolean; -- Flag14
7790 function Corresponding_Body
7791 (N : Node_Id) return Node_Id; -- Node5
7793 function Corresponding_Formal_Spec
7794 (N : Node_Id) return Node_Id; -- Node3
7796 function Corresponding_Generic_Association
7797 (N : Node_Id) return Node_Id; -- Node5
7799 function Corresponding_Integer_Value
7800 (N : Node_Id) return Uint; -- Uint4
7802 function Corresponding_Spec
7803 (N : Node_Id) return Node_Id; -- Node5
7805 function Corresponding_Stub
7806 (N : Node_Id) return Node_Id; -- Node3
7808 function Dcheck_Function
7809 (N : Node_Id) return Entity_Id; -- Node5
7811 function Debug_Statement
7812 (N : Node_Id) return Node_Id; -- Node3
7814 function Declarations
7815 (N : Node_Id) return List_Id; -- List2
7817 function Default_Expression
7818 (N : Node_Id) return Node_Id; -- Node5
7820 function Default_Name
7821 (N : Node_Id) return Node_Id; -- Node2
7823 function Defining_Identifier
7824 (N : Node_Id) return Entity_Id; -- Node1
7826 function Defining_Unit_Name
7827 (N : Node_Id) return Node_Id; -- Node1
7829 function Delay_Alternative
7830 (N : Node_Id) return Node_Id; -- Node4
7832 function Delay_Statement
7833 (N : Node_Id) return Node_Id; -- Node2
7835 function Delta_Expression
7836 (N : Node_Id) return Node_Id; -- Node3
7838 function Digits_Expression
7839 (N : Node_Id) return Node_Id; -- Node2
7841 function Discr_Check_Funcs_Built
7842 (N : Node_Id) return Boolean; -- Flag11
7844 function Discrete_Choices
7845 (N : Node_Id) return List_Id; -- List4
7847 function Discrete_Range
7848 (N : Node_Id) return Node_Id; -- Node4
7850 function Discrete_Subtype_Definition
7851 (N : Node_Id) return Node_Id; -- Node4
7853 function Discrete_Subtype_Definitions
7854 (N : Node_Id) return List_Id; -- List2
7856 function Discriminant_Specifications
7857 (N : Node_Id) return List_Id; -- List4
7859 function Discriminant_Type
7860 (N : Node_Id) return Node_Id; -- Node5
7862 function Do_Accessibility_Check
7863 (N : Node_Id) return Boolean; -- Flag13
7865 function Do_Discriminant_Check
7866 (N : Node_Id) return Boolean; -- Flag13
7868 function Do_Division_Check
7869 (N : Node_Id) return Boolean; -- Flag13
7871 function Do_Length_Check
7872 (N : Node_Id) return Boolean; -- Flag4
7874 function Do_Overflow_Check
7875 (N : Node_Id) return Boolean; -- Flag17
7877 function Do_Range_Check
7878 (N : Node_Id) return Boolean; -- Flag9
7880 function Do_Storage_Check
7881 (N : Node_Id) return Boolean; -- Flag17
7883 function Do_Tag_Check
7884 (N : Node_Id) return Boolean; -- Flag13
7886 function Elaborate_All_Desirable
7887 (N : Node_Id) return Boolean; -- Flag9
7889 function Elaborate_All_Present
7890 (N : Node_Id) return Boolean; -- Flag14
7892 function Elaborate_Desirable
7893 (N : Node_Id) return Boolean; -- Flag11
7895 function Elaborate_Present
7896 (N : Node_Id) return Boolean; -- Flag4
7898 function Elaboration_Boolean
7899 (N : Node_Id) return Node_Id; -- Node2
7901 function Else_Actions
7902 (N : Node_Id) return List_Id; -- List3
7904 function Else_Statements
7905 (N : Node_Id) return List_Id; -- List4
7907 function Elsif_Parts
7908 (N : Node_Id) return List_Id; -- List3
7910 function Enclosing_Variant
7911 (N : Node_Id) return Node_Id; -- Node2
7914 (N : Node_Id) return Node_Id; -- Node4
7917 (N : Node_Id) return Uint; -- Uint5
7920 (N : Node_Id) return Node_Id; -- Node4
7922 function Entity_Or_Associated_Node
7923 (N : Node_Id) return Node_Id; -- Node4
7925 function Entry_Body_Formal_Part
7926 (N : Node_Id) return Node_Id; -- Node5
7928 function Entry_Call_Alternative
7929 (N : Node_Id) return Node_Id; -- Node1
7931 function Entry_Call_Statement
7932 (N : Node_Id) return Node_Id; -- Node1
7934 function Entry_Direct_Name
7935 (N : Node_Id) return Node_Id; -- Node1
7937 function Entry_Index
7938 (N : Node_Id) return Node_Id; -- Node5
7940 function Entry_Index_Specification
7941 (N : Node_Id) return Node_Id; -- Node4
7944 (N : Node_Id) return Node_Id; -- Node5
7946 function Exception_Choices
7947 (N : Node_Id) return List_Id; -- List4
7949 function Exception_Handlers
7950 (N : Node_Id) return List_Id; -- List5
7952 function Exception_Junk
7953 (N : Node_Id) return Boolean; -- Flag8
7955 function Exception_Label
7956 (N : Node_Id) return Node_Id; -- Node5
7958 function Explicit_Actual_Parameter
7959 (N : Node_Id) return Node_Id; -- Node3
7961 function Expansion_Delayed
7962 (N : Node_Id) return Boolean; -- Flag11
7964 function Explicit_Generic_Actual_Parameter
7965 (N : Node_Id) return Node_Id; -- Node1
7968 (N : Node_Id) return Node_Id; -- Node3
7970 function Expressions
7971 (N : Node_Id) return List_Id; -- List1
7974 (N : Node_Id) return Node_Id; -- Node3
7976 function First_Inlined_Subprogram
7977 (N : Node_Id) return Entity_Id; -- Node3
7980 (N : Node_Id) return Boolean; -- Flag5
7982 function First_Named_Actual
7983 (N : Node_Id) return Node_Id; -- Node4
7985 function First_Real_Statement
7986 (N : Node_Id) return Node_Id; -- Node2
7988 function First_Subtype_Link
7989 (N : Node_Id) return Entity_Id; -- Node5
7991 function Float_Truncate
7992 (N : Node_Id) return Boolean; -- Flag11
7994 function Formal_Type_Definition
7995 (N : Node_Id) return Node_Id; -- Node3
7997 function Forwards_OK
7998 (N : Node_Id) return Boolean; -- Flag5
8000 function From_At_End
8001 (N : Node_Id) return Boolean; -- Flag4
8003 function From_At_Mod
8004 (N : Node_Id) return Boolean; -- Flag4
8006 function From_Default
8007 (N : Node_Id) return Boolean; -- Flag6
8009 function Generic_Associations
8010 (N : Node_Id) return List_Id; -- List3
8012 function Generic_Formal_Declarations
8013 (N : Node_Id) return List_Id; -- List2
8015 function Generic_Parent
8016 (N : Node_Id) return Node_Id; -- Node5
8018 function Generic_Parent_Type
8019 (N : Node_Id) return Node_Id; -- Node4
8021 function Handled_Statement_Sequence
8022 (N : Node_Id) return Node_Id; -- Node4
8024 function Handler_List_Entry
8025 (N : Node_Id) return Node_Id; -- Node2
8027 function Has_Created_Identifier
8028 (N : Node_Id) return Boolean; -- Flag15
8030 function Has_Dynamic_Length_Check
8031 (N : Node_Id) return Boolean; -- Flag10
8033 function Has_Dynamic_Range_Check
8034 (N : Node_Id) return Boolean; -- Flag12
8036 function Has_Init_Expression
8037 (N : Node_Id) return Boolean; -- Flag14
8039 function Has_Local_Raise
8040 (N : Node_Id) return Boolean; -- Flag8
8042 function Has_No_Elaboration_Code
8043 (N : Node_Id) return Boolean; -- Flag17
8045 function Has_Priority_Pragma
8046 (N : Node_Id) return Boolean; -- Flag6
8048 function Has_Private_View
8049 (N : Node_Id) return Boolean; -- Flag11
8051 function Has_Relative_Deadline_Pragma
8052 (N : Node_Id) return Boolean; -- Flag9
8054 function Has_Self_Reference
8055 (N : Node_Id) return Boolean; -- Flag13
8057 function Has_Storage_Size_Pragma
8058 (N : Node_Id) return Boolean; -- Flag5
8060 function Has_Task_Info_Pragma
8061 (N : Node_Id) return Boolean; -- Flag7
8063 function Has_Task_Name_Pragma
8064 (N : Node_Id) return Boolean; -- Flag8
8066 function Has_Wide_Character
8067 (N : Node_Id) return Boolean; -- Flag11
8069 function Has_Wide_Wide_Character
8070 (N : Node_Id) return Boolean; -- Flag13
8072 function Hidden_By_Use_Clause
8073 (N : Node_Id) return Elist_Id; -- Elist4
8076 (N : Node_Id) return Node_Id; -- Node2
8079 (N : Node_Id) return Node_Id; -- Node1
8081 function Interface_List
8082 (N : Node_Id) return List_Id; -- List2
8084 function Interface_Present
8085 (N : Node_Id) return Boolean; -- Flag16
8087 function Implicit_With
8088 (N : Node_Id) return Boolean; -- Flag16
8091 (N : Node_Id) return Boolean; -- Flag15
8093 function Includes_Infinities
8094 (N : Node_Id) return Boolean; -- Flag11
8096 function Instance_Spec
8097 (N : Node_Id) return Node_Id; -- Node5
8100 (N : Node_Id) return Uint; -- Uint3
8102 function Is_Accessibility_Actual
8103 (N : Node_Id) return Boolean; -- Flag13
8105 function Is_Asynchronous_Call_Block
8106 (N : Node_Id) return Boolean; -- Flag7
8108 function Is_Component_Left_Opnd
8109 (N : Node_Id) return Boolean; -- Flag13
8111 function Is_Component_Right_Opnd
8112 (N : Node_Id) return Boolean; -- Flag14
8114 function Is_Controlling_Actual
8115 (N : Node_Id) return Boolean; -- Flag16
8117 function Is_Dynamic_Coextension
8118 (N : Node_Id) return Boolean; -- Flag18
8121 (N : Node_Id) return Boolean; -- Flag13
8123 function Is_Entry_Barrier_Function
8124 (N : Node_Id) return Boolean; -- Flag8
8126 function Is_Expanded_Build_In_Place_Call
8127 (N : Node_Id) return Boolean; -- Flag11
8129 function Is_Folded_In_Parser
8130 (N : Node_Id) return Boolean; -- Flag4
8132 function Is_In_Discriminant_Check
8133 (N : Node_Id) return Boolean; -- Flag11
8135 function Is_Machine_Number
8136 (N : Node_Id) return Boolean; -- Flag11
8138 function Is_Null_Loop
8139 (N : Node_Id) return Boolean; -- Flag16
8141 function Is_Overloaded
8142 (N : Node_Id) return Boolean; -- Flag5
8144 function Is_Power_Of_2_For_Shift
8145 (N : Node_Id) return Boolean; -- Flag13
8147 function Is_Protected_Subprogram_Body
8148 (N : Node_Id) return Boolean; -- Flag7
8150 function Is_Static_Coextension
8151 (N : Node_Id) return Boolean; -- Flag14
8153 function Is_Static_Expression
8154 (N : Node_Id) return Boolean; -- Flag6
8156 function Is_Subprogram_Descriptor
8157 (N : Node_Id) return Boolean; -- Flag16
8159 function Is_Task_Allocation_Block
8160 (N : Node_Id) return Boolean; -- Flag6
8162 function Is_Task_Master
8163 (N : Node_Id) return Boolean; -- Flag5
8165 function Iteration_Scheme
8166 (N : Node_Id) return Node_Id; -- Node2
8169 (N : Node_Id) return Entity_Id; -- Node1
8171 function Kill_Range_Check
8172 (N : Node_Id) return Boolean; -- Flag11
8174 function Label_Construct
8175 (N : Node_Id) return Node_Id; -- Node2
8178 (N : Node_Id) return Node_Id; -- Node2
8181 (N : Node_Id) return Node_Id; -- Node4
8184 (N : Node_Id) return Boolean; -- Flag6
8186 function Library_Unit
8187 (N : Node_Id) return Node_Id; -- Node4
8189 function Limited_View_Installed
8190 (N : Node_Id) return Boolean; -- Flag18
8192 function Limited_Present
8193 (N : Node_Id) return Boolean; -- Flag17
8196 (N : Node_Id) return List_Id; -- List1
8198 function Local_Raise_Not_OK
8199 (N : Node_Id) return Boolean; -- Flag7
8201 function Local_Raise_Statements
8202 (N : Node_Id) return Elist_Id; -- Elist1
8204 function Loop_Actions
8205 (N : Node_Id) return List_Id; -- List2
8207 function Loop_Parameter_Specification
8208 (N : Node_Id) return Node_Id; -- Node4
8211 (N : Node_Id) return Node_Id; -- Node1
8214 (N : Node_Id) return Node_Id; -- Node2
8217 (N : Node_Id) return Boolean; -- Flag5
8219 function Must_Be_Byte_Aligned
8220 (N : Node_Id) return Boolean; -- Flag14
8222 function Must_Not_Freeze
8223 (N : Node_Id) return Boolean; -- Flag8
8225 function Must_Not_Override
8226 (N : Node_Id) return Boolean; -- Flag15
8228 function Must_Override
8229 (N : Node_Id) return Boolean; -- Flag14
8232 (N : Node_Id) return Node_Id; -- Node2
8235 (N : Node_Id) return List_Id; -- List2
8237 function Next_Entity
8238 (N : Node_Id) return Node_Id; -- Node2
8240 function Next_Implicit_With
8241 (N : Node_Id) return Node_Id; -- Node3
8243 function Next_Named_Actual
8244 (N : Node_Id) return Node_Id; -- Node4
8246 function Next_Pragma
8247 (N : Node_Id) return Node_Id; -- Node1
8249 function Next_Rep_Item
8250 (N : Node_Id) return Node_Id; -- Node5
8252 function Next_Use_Clause
8253 (N : Node_Id) return Node_Id; -- Node3
8255 function No_Ctrl_Actions
8256 (N : Node_Id) return Boolean; -- Flag7
8258 function No_Elaboration_Check
8259 (N : Node_Id) return Boolean; -- Flag14
8261 function No_Entities_Ref_In_Spec
8262 (N : Node_Id) return Boolean; -- Flag8
8264 function No_Initialization
8265 (N : Node_Id) return Boolean; -- Flag13
8267 function No_Truncation
8268 (N : Node_Id) return Boolean; -- Flag17
8270 function Null_Present
8271 (N : Node_Id) return Boolean; -- Flag13
8273 function Null_Exclusion_Present
8274 (N : Node_Id) return Boolean; -- Flag11
8276 function Null_Exclusion_In_Return_Present
8277 (N : Node_Id) return Boolean; -- Flag14
8279 function Null_Record_Present
8280 (N : Node_Id) return Boolean; -- Flag17
8282 function Object_Definition
8283 (N : Node_Id) return Node_Id; -- Node4
8285 function Original_Discriminant
8286 (N : Node_Id) return Node_Id; -- Node2
8288 function Original_Entity
8289 (N : Node_Id) return Entity_Id; -- Node2
8291 function Others_Discrete_Choices
8292 (N : Node_Id) return List_Id; -- List1
8294 function Out_Present
8295 (N : Node_Id) return Boolean; -- Flag17
8297 function Parameter_Associations
8298 (N : Node_Id) return List_Id; -- List3
8300 function Parameter_List_Truncated
8301 (N : Node_Id) return Boolean; -- Flag17
8303 function Parameter_Specifications
8304 (N : Node_Id) return List_Id; -- List3
8306 function Parameter_Type
8307 (N : Node_Id) return Node_Id; -- Node2
8309 function Parent_Spec
8310 (N : Node_Id) return Node_Id; -- Node4
8312 function PPC_Enabled
8313 (N : Node_Id) return Boolean; -- Flag5
8316 (N : Node_Id) return Node_Id; -- Node2
8318 function Pragma_Argument_Associations
8319 (N : Node_Id) return List_Id; -- List2
8321 function Pragma_Identifier
8322 (N : Node_Id) return Node_Id; -- Node4
8324 function Pragmas_After
8325 (N : Node_Id) return List_Id; -- List5
8327 function Pragmas_Before
8328 (N : Node_Id) return List_Id; -- List4
8331 (N : Node_Id) return Node_Id; -- Node3
8333 function Present_Expr
8334 (N : Node_Id) return Uint; -- Uint3
8337 (N : Node_Id) return Boolean; -- Flag6
8339 function Print_In_Hex
8340 (N : Node_Id) return Boolean; -- Flag13
8342 function Private_Declarations
8343 (N : Node_Id) return List_Id; -- List3
8345 function Private_Present
8346 (N : Node_Id) return Boolean; -- Flag15
8348 function Procedure_To_Call
8349 (N : Node_Id) return Node_Id; -- Node2
8351 function Proper_Body
8352 (N : Node_Id) return Node_Id; -- Node1
8354 function Protected_Definition
8355 (N : Node_Id) return Node_Id; -- Node3
8357 function Protected_Present
8358 (N : Node_Id) return Boolean; -- Flag6
8360 function Raises_Constraint_Error
8361 (N : Node_Id) return Boolean; -- Flag7
8363 function Range_Constraint
8364 (N : Node_Id) return Node_Id; -- Node4
8366 function Range_Expression
8367 (N : Node_Id) return Node_Id; -- Node4
8369 function Real_Range_Specification
8370 (N : Node_Id) return Node_Id; -- Node4
8373 (N : Node_Id) return Ureal; -- Ureal3
8376 (N : Node_Id) return Uint; -- Uint3
8378 function Record_Extension_Part
8379 (N : Node_Id) return Node_Id; -- Node3
8381 function Redundant_Use
8382 (N : Node_Id) return Boolean; -- Flag13
8384 function Renaming_Exception
8385 (N : Node_Id) return Node_Id; -- Node2
8387 function Result_Definition
8388 (N : Node_Id) return Node_Id; -- Node4
8390 function Return_Object_Declarations
8391 (N : Node_Id) return List_Id; -- List3
8393 function Return_Statement_Entity
8394 (N : Node_Id) return Node_Id; -- Node5
8396 function Reverse_Present
8397 (N : Node_Id) return Boolean; -- Flag15
8400 (N : Node_Id) return Node_Id; -- Node3
8402 function Rounded_Result
8403 (N : Node_Id) return Boolean; -- Flag18
8405 function SCIL_Controlling_Tag
8406 (N : Node_Id) return Node_Id; -- Node5
8408 function SCIL_Entity
8409 (N : Node_Id) return Node_Id; -- Node4
8411 function SCIL_Related_Node
8412 (N : Node_Id) return Node_Id; -- Node1
8414 function SCIL_Tag_Value
8415 (N : Node_Id) return Node_Id; -- Node5
8417 function SCIL_Target_Prim
8418 (N : Node_Id) return Node_Id; -- Node2
8421 (N : Node_Id) return Node_Id; -- Node3
8423 function Select_Alternatives
8424 (N : Node_Id) return List_Id; -- List1
8426 function Selector_Name
8427 (N : Node_Id) return Node_Id; -- Node2
8429 function Selector_Names
8430 (N : Node_Id) return List_Id; -- List1
8432 function Shift_Count_OK
8433 (N : Node_Id) return Boolean; -- Flag4
8435 function Source_Type
8436 (N : Node_Id) return Entity_Id; -- Node1
8438 function Specification
8439 (N : Node_Id) return Node_Id; -- Node1
8442 (N : Node_Id) return List_Id; -- List3
8444 function Static_Processing_OK
8445 (N : Node_Id) return Boolean; -- Flag4
8447 function Storage_Pool
8448 (N : Node_Id) return Node_Id; -- Node1
8451 (N : Node_Id) return String_Id; -- Str3
8453 function Subtype_Indication
8454 (N : Node_Id) return Node_Id; -- Node5
8456 function Subtype_Mark
8457 (N : Node_Id) return Node_Id; -- Node4
8459 function Subtype_Marks
8460 (N : Node_Id) return List_Id; -- List2
8462 function Suppress_Loop_Warnings
8463 (N : Node_Id) return Boolean; -- Flag17
8465 function Synchronized_Present
8466 (N : Node_Id) return Boolean; -- Flag7
8468 function Tagged_Present
8469 (N : Node_Id) return Boolean; -- Flag15
8471 function Target_Type
8472 (N : Node_Id) return Entity_Id; -- Node2
8474 function Task_Definition
8475 (N : Node_Id) return Node_Id; -- Node3
8477 function Task_Present
8478 (N : Node_Id) return Boolean; -- Flag5
8480 function Then_Actions
8481 (N : Node_Id) return List_Id; -- List2
8483 function Then_Statements
8484 (N : Node_Id) return List_Id; -- List2
8486 function Treat_Fixed_As_Integer
8487 (N : Node_Id) return Boolean; -- Flag14
8489 function Triggering_Alternative
8490 (N : Node_Id) return Node_Id; -- Node1
8492 function Triggering_Statement
8493 (N : Node_Id) return Node_Id; -- Node1
8496 (N : Node_Id) return Elist_Id; -- Elist3
8498 function Type_Definition
8499 (N : Node_Id) return Node_Id; -- Node3
8502 (N : Node_Id) return Node_Id; -- Node2
8504 function Unknown_Discriminants_Present
8505 (N : Node_Id) return Boolean; -- Flag13
8507 function Unreferenced_In_Spec
8508 (N : Node_Id) return Boolean; -- Flag7
8510 function Variant_Part
8511 (N : Node_Id) return Node_Id; -- Node4
8514 (N : Node_Id) return List_Id; -- List1
8516 function Visible_Declarations
8517 (N : Node_Id) return List_Id; -- List2
8519 function Was_Originally_Stub
8520 (N : Node_Id) return Boolean; -- Flag13
8522 function Zero_Cost_Handling
8523 (N : Node_Id) return Boolean; -- Flag5
8525 -- End functions (note used by xsinfo utility program to end processing)
8527 ----------------------------
8528 -- Node Update Procedures --
8529 ----------------------------
8531 -- These are the corresponding node update routines, which again provide
8532 -- a high level logical access with type checking. In addition to setting
8533 -- the indicated field of the node N to the given Val, in the case of
8534 -- tree pointers (List1-4), the parent pointer of the Val node is set to
8535 -- point back to node N. This automates the setting of the parent pointer.
8537 procedure Set_ABE_Is_Certain
8538 (N : Node_Id; Val : Boolean := True); -- Flag18
8540 procedure Set_Abort_Present
8541 (N : Node_Id; Val : Boolean := True); -- Flag15
8543 procedure Set_Abortable_Part
8544 (N : Node_Id; Val : Node_Id); -- Node2
8546 procedure Set_Abstract_Present
8547 (N : Node_Id; Val : Boolean := True); -- Flag4
8549 procedure Set_Accept_Handler_Records
8550 (N : Node_Id; Val : List_Id); -- List5
8552 procedure Set_Accept_Statement
8553 (N : Node_Id; Val : Node_Id); -- Node2
8555 procedure Set_Access_Definition
8556 (N : Node_Id; Val : Node_Id); -- Node3
8558 procedure Set_Access_To_Subprogram_Definition
8559 (N : Node_Id; Val : Node_Id); -- Node3
8561 procedure Set_Access_Types_To_Process
8562 (N : Node_Id; Val : Elist_Id); -- Elist2
8564 procedure Set_Actions
8565 (N : Node_Id; Val : List_Id); -- List1
8567 procedure Set_Activation_Chain_Entity
8568 (N : Node_Id; Val : Node_Id); -- Node3
8570 procedure Set_Acts_As_Spec
8571 (N : Node_Id; Val : Boolean := True); -- Flag4
8573 procedure Set_Actual_Designated_Subtype
8574 (N : Node_Id; Val : Node_Id); -- Node4
8576 procedure Set_Address_Warning_Posted
8577 (N : Node_Id; Val : Boolean := True); -- Flag18
8579 procedure Set_Aggregate_Bounds
8580 (N : Node_Id; Val : Node_Id); -- Node3
8582 procedure Set_Aliased_Present
8583 (N : Node_Id; Val : Boolean := True); -- Flag4
8585 procedure Set_All_Others
8586 (N : Node_Id; Val : Boolean := True); -- Flag11
8588 procedure Set_All_Present
8589 (N : Node_Id; Val : Boolean := True); -- Flag15
8591 procedure Set_Alternatives
8592 (N : Node_Id; Val : List_Id); -- List4
8594 procedure Set_Ancestor_Part
8595 (N : Node_Id; Val : Node_Id); -- Node3
8597 procedure Set_Array_Aggregate
8598 (N : Node_Id; Val : Node_Id); -- Node3
8600 procedure Set_Assignment_OK
8601 (N : Node_Id; Val : Boolean := True); -- Flag15
8603 procedure Set_Associated_Node
8604 (N : Node_Id; Val : Node_Id); -- Node4
8606 procedure Set_Attribute_Name
8607 (N : Node_Id; Val : Name_Id); -- Name2
8609 procedure Set_At_End_Proc
8610 (N : Node_Id; Val : Node_Id); -- Node1
8612 procedure Set_Aux_Decls_Node
8613 (N : Node_Id; Val : Node_Id); -- Node5
8615 procedure Set_Backwards_OK
8616 (N : Node_Id; Val : Boolean := True); -- Flag6
8618 procedure Set_Bad_Is_Detected
8619 (N : Node_Id; Val : Boolean := True); -- Flag15
8621 procedure Set_Body_Required
8622 (N : Node_Id; Val : Boolean := True); -- Flag13
8624 procedure Set_Body_To_Inline
8625 (N : Node_Id; Val : Node_Id); -- Node3
8627 procedure Set_Box_Present
8628 (N : Node_Id; Val : Boolean := True); -- Flag15
8630 procedure Set_By_Ref
8631 (N : Node_Id; Val : Boolean := True); -- Flag5
8633 procedure Set_Char_Literal_Value
8634 (N : Node_Id; Val : Uint); -- Uint2
8637 (N : Node_Id; Val : Name_Id); -- Name1
8639 procedure Set_Check_Address_Alignment
8640 (N : Node_Id; Val : Boolean := True); -- Flag11
8642 procedure Set_Choice_Parameter
8643 (N : Node_Id; Val : Node_Id); -- Node2
8645 procedure Set_Coextensions
8646 (N : Node_Id; Val : Elist_Id); -- Elist4
8648 procedure Set_Choices
8649 (N : Node_Id; Val : List_Id); -- List1
8651 procedure Set_Comes_From_Extended_Return_Statement
8652 (N : Node_Id; Val : Boolean := True); -- Flag18
8654 procedure Set_Compile_Time_Known_Aggregate
8655 (N : Node_Id; Val : Boolean := True); -- Flag18
8657 procedure Set_Component_Associations
8658 (N : Node_Id; Val : List_Id); -- List2
8660 procedure Set_Component_Clauses
8661 (N : Node_Id; Val : List_Id); -- List3
8663 procedure Set_Component_Definition
8664 (N : Node_Id; Val : Node_Id); -- Node4
8666 procedure Set_Component_Items
8667 (N : Node_Id; Val : List_Id); -- List3
8669 procedure Set_Component_List
8670 (N : Node_Id; Val : Node_Id); -- Node1
8672 procedure Set_Component_Name
8673 (N : Node_Id; Val : Node_Id); -- Node1
8675 procedure Set_Componentwise_Assignment
8676 (N : Node_Id; Val : Boolean := True); -- Flag14
8678 procedure Set_Condition
8679 (N : Node_Id; Val : Node_Id); -- Node1
8681 procedure Set_Condition_Actions
8682 (N : Node_Id; Val : List_Id); -- List3
8684 procedure Set_Config_Pragmas
8685 (N : Node_Id; Val : List_Id); -- List4
8687 procedure Set_Constant_Present
8688 (N : Node_Id; Val : Boolean := True); -- Flag17
8690 procedure Set_Constraint
8691 (N : Node_Id; Val : Node_Id); -- Node3
8693 procedure Set_Constraints
8694 (N : Node_Id; Val : List_Id); -- List1
8696 procedure Set_Context_Installed
8697 (N : Node_Id; Val : Boolean := True); -- Flag13
8699 procedure Set_Context_Items
8700 (N : Node_Id; Val : List_Id); -- List1
8702 procedure Set_Context_Pending
8703 (N : Node_Id; Val : Boolean := True); -- Flag16
8705 procedure Set_Controlling_Argument
8706 (N : Node_Id; Val : Node_Id); -- Node1
8708 procedure Set_Conversion_OK
8709 (N : Node_Id; Val : Boolean := True); -- Flag14
8711 procedure Set_Corresponding_Body
8712 (N : Node_Id; Val : Node_Id); -- Node5
8714 procedure Set_Corresponding_Formal_Spec
8715 (N : Node_Id; Val : Node_Id); -- Node3
8717 procedure Set_Corresponding_Generic_Association
8718 (N : Node_Id; Val : Node_Id); -- Node5
8720 procedure Set_Corresponding_Integer_Value
8721 (N : Node_Id; Val : Uint); -- Uint4
8723 procedure Set_Corresponding_Spec
8724 (N : Node_Id; Val : Node_Id); -- Node5
8726 procedure Set_Corresponding_Stub
8727 (N : Node_Id; Val : Node_Id); -- Node3
8729 procedure Set_Dcheck_Function
8730 (N : Node_Id; Val : Entity_Id); -- Node5
8732 procedure Set_Debug_Statement
8733 (N : Node_Id; Val : Node_Id); -- Node3
8735 procedure Set_Declarations
8736 (N : Node_Id; Val : List_Id); -- List2
8738 procedure Set_Default_Expression
8739 (N : Node_Id; Val : Node_Id); -- Node5
8741 procedure Set_Default_Name
8742 (N : Node_Id; Val : Node_Id); -- Node2
8744 procedure Set_Defining_Identifier
8745 (N : Node_Id; Val : Entity_Id); -- Node1
8747 procedure Set_Defining_Unit_Name
8748 (N : Node_Id; Val : Node_Id); -- Node1
8750 procedure Set_Delay_Alternative
8751 (N : Node_Id; Val : Node_Id); -- Node4
8753 procedure Set_Delay_Statement
8754 (N : Node_Id; Val : Node_Id); -- Node2
8756 procedure Set_Delta_Expression
8757 (N : Node_Id; Val : Node_Id); -- Node3
8759 procedure Set_Digits_Expression
8760 (N : Node_Id; Val : Node_Id); -- Node2
8762 procedure Set_Discr_Check_Funcs_Built
8763 (N : Node_Id; Val : Boolean := True); -- Flag11
8765 procedure Set_Discrete_Choices
8766 (N : Node_Id; Val : List_Id); -- List4
8768 procedure Set_Discrete_Range
8769 (N : Node_Id; Val : Node_Id); -- Node4
8771 procedure Set_Discrete_Subtype_Definition
8772 (N : Node_Id; Val : Node_Id); -- Node4
8774 procedure Set_Discrete_Subtype_Definitions
8775 (N : Node_Id; Val : List_Id); -- List2
8777 procedure Set_Discriminant_Specifications
8778 (N : Node_Id; Val : List_Id); -- List4
8780 procedure Set_Discriminant_Type
8781 (N : Node_Id; Val : Node_Id); -- Node5
8783 procedure Set_Do_Accessibility_Check
8784 (N : Node_Id; Val : Boolean := True); -- Flag13
8786 procedure Set_Do_Discriminant_Check
8787 (N : Node_Id; Val : Boolean := True); -- Flag13
8789 procedure Set_Do_Division_Check
8790 (N : Node_Id; Val : Boolean := True); -- Flag13
8792 procedure Set_Do_Length_Check
8793 (N : Node_Id; Val : Boolean := True); -- Flag4
8795 procedure Set_Do_Overflow_Check
8796 (N : Node_Id; Val : Boolean := True); -- Flag17
8798 procedure Set_Do_Range_Check
8799 (N : Node_Id; Val : Boolean := True); -- Flag9
8801 procedure Set_Do_Storage_Check
8802 (N : Node_Id; Val : Boolean := True); -- Flag17
8804 procedure Set_Do_Tag_Check
8805 (N : Node_Id; Val : Boolean := True); -- Flag13
8807 procedure Set_Elaborate_All_Desirable
8808 (N : Node_Id; Val : Boolean := True); -- Flag9
8810 procedure Set_Elaborate_All_Present
8811 (N : Node_Id; Val : Boolean := True); -- Flag14
8813 procedure Set_Elaborate_Desirable
8814 (N : Node_Id; Val : Boolean := True); -- Flag11
8816 procedure Set_Elaborate_Present
8817 (N : Node_Id; Val : Boolean := True); -- Flag4
8819 procedure Set_Elaboration_Boolean
8820 (N : Node_Id; Val : Node_Id); -- Node2
8822 procedure Set_Else_Actions
8823 (N : Node_Id; Val : List_Id); -- List3
8825 procedure Set_Else_Statements
8826 (N : Node_Id; Val : List_Id); -- List4
8828 procedure Set_Elsif_Parts
8829 (N : Node_Id; Val : List_Id); -- List3
8831 procedure Set_Enclosing_Variant
8832 (N : Node_Id; Val : Node_Id); -- Node2
8834 procedure Set_End_Label
8835 (N : Node_Id; Val : Node_Id); -- Node4
8837 procedure Set_End_Span
8838 (N : Node_Id; Val : Uint); -- Uint5
8840 procedure Set_Entity
8841 (N : Node_Id; Val : Node_Id); -- Node4
8843 procedure Set_Entry_Body_Formal_Part
8844 (N : Node_Id; Val : Node_Id); -- Node5
8846 procedure Set_Entry_Call_Alternative
8847 (N : Node_Id; Val : Node_Id); -- Node1
8849 procedure Set_Entry_Call_Statement
8850 (N : Node_Id; Val : Node_Id); -- Node1
8852 procedure Set_Entry_Direct_Name
8853 (N : Node_Id; Val : Node_Id); -- Node1
8855 procedure Set_Entry_Index
8856 (N : Node_Id; Val : Node_Id); -- Node5
8858 procedure Set_Entry_Index_Specification
8859 (N : Node_Id; Val : Node_Id); -- Node4
8862 (N : Node_Id; Val : Node_Id); -- Node5
8864 procedure Set_Exception_Choices
8865 (N : Node_Id; Val : List_Id); -- List4
8867 procedure Set_Exception_Handlers
8868 (N : Node_Id; Val : List_Id); -- List5
8870 procedure Set_Exception_Junk
8871 (N : Node_Id; Val : Boolean := True); -- Flag8
8873 procedure Set_Exception_Label
8874 (N : Node_Id; Val : Node_Id); -- Node5
8876 procedure Set_Expansion_Delayed
8877 (N : Node_Id; Val : Boolean := True); -- Flag11
8879 procedure Set_Explicit_Actual_Parameter
8880 (N : Node_Id; Val : Node_Id); -- Node3
8882 procedure Set_Explicit_Generic_Actual_Parameter
8883 (N : Node_Id; Val : Node_Id); -- Node1
8885 procedure Set_Expression
8886 (N : Node_Id; Val : Node_Id); -- Node3
8888 procedure Set_Expressions
8889 (N : Node_Id; Val : List_Id); -- List1
8891 procedure Set_First_Bit
8892 (N : Node_Id; Val : Node_Id); -- Node3
8894 procedure Set_First_Inlined_Subprogram
8895 (N : Node_Id; Val : Entity_Id); -- Node3
8897 procedure Set_First_Name
8898 (N : Node_Id; Val : Boolean := True); -- Flag5
8900 procedure Set_First_Named_Actual
8901 (N : Node_Id; Val : Node_Id); -- Node4
8903 procedure Set_First_Real_Statement
8904 (N : Node_Id; Val : Node_Id); -- Node2
8906 procedure Set_First_Subtype_Link
8907 (N : Node_Id; Val : Entity_Id); -- Node5
8909 procedure Set_Float_Truncate
8910 (N : Node_Id; Val : Boolean := True); -- Flag11
8912 procedure Set_Formal_Type_Definition
8913 (N : Node_Id; Val : Node_Id); -- Node3
8915 procedure Set_Forwards_OK
8916 (N : Node_Id; Val : Boolean := True); -- Flag5
8918 procedure Set_From_At_Mod
8919 (N : Node_Id; Val : Boolean := True); -- Flag4
8921 procedure Set_From_At_End
8922 (N : Node_Id; Val : Boolean := True); -- Flag4
8924 procedure Set_From_Default
8925 (N : Node_Id; Val : Boolean := True); -- Flag6
8927 procedure Set_Generic_Associations
8928 (N : Node_Id; Val : List_Id); -- List3
8930 procedure Set_Generic_Formal_Declarations
8931 (N : Node_Id; Val : List_Id); -- List2
8933 procedure Set_Generic_Parent
8934 (N : Node_Id; Val : Node_Id); -- Node5
8936 procedure Set_Generic_Parent_Type
8937 (N : Node_Id; Val : Node_Id); -- Node4
8939 procedure Set_Handled_Statement_Sequence
8940 (N : Node_Id; Val : Node_Id); -- Node4
8942 procedure Set_Handler_List_Entry
8943 (N : Node_Id; Val : Node_Id); -- Node2
8945 procedure Set_Has_Created_Identifier
8946 (N : Node_Id; Val : Boolean := True); -- Flag15
8948 procedure Set_Has_Dynamic_Length_Check
8949 (N : Node_Id; Val : Boolean := True); -- Flag10
8951 procedure Set_Has_Dynamic_Range_Check
8952 (N : Node_Id; Val : Boolean := True); -- Flag12
8954 procedure Set_Has_Init_Expression
8955 (N : Node_Id; Val : Boolean := True); -- Flag14
8957 procedure Set_Has_Local_Raise
8958 (N : Node_Id; Val : Boolean := True); -- Flag8
8960 procedure Set_Has_No_Elaboration_Code
8961 (N : Node_Id; Val : Boolean := True); -- Flag17
8963 procedure Set_Has_Priority_Pragma
8964 (N : Node_Id; Val : Boolean := True); -- Flag6
8966 procedure Set_Has_Private_View
8967 (N : Node_Id; Val : Boolean := True); -- Flag11
8969 procedure Set_Has_Relative_Deadline_Pragma
8970 (N : Node_Id; Val : Boolean := True); -- Flag9
8972 procedure Set_Has_Self_Reference
8973 (N : Node_Id; Val : Boolean := True); -- Flag13
8975 procedure Set_Has_Storage_Size_Pragma
8976 (N : Node_Id; Val : Boolean := True); -- Flag5
8978 procedure Set_Has_Task_Info_Pragma
8979 (N : Node_Id; Val : Boolean := True); -- Flag7
8981 procedure Set_Has_Task_Name_Pragma
8982 (N : Node_Id; Val : Boolean := True); -- Flag8
8984 procedure Set_Has_Wide_Character
8985 (N : Node_Id; Val : Boolean := True); -- Flag11
8987 procedure Set_Has_Wide_Wide_Character
8988 (N : Node_Id; Val : Boolean := True); -- Flag13
8990 procedure Set_Hidden_By_Use_Clause
8991 (N : Node_Id; Val : Elist_Id); -- Elist4
8993 procedure Set_High_Bound
8994 (N : Node_Id; Val : Node_Id); -- Node2
8996 procedure Set_Identifier
8997 (N : Node_Id; Val : Node_Id); -- Node1
8999 procedure Set_Interface_List
9000 (N : Node_Id; Val : List_Id); -- List2
9002 procedure Set_Interface_Present
9003 (N : Node_Id; Val : Boolean := True); -- Flag16
9005 procedure Set_Implicit_With
9006 (N : Node_Id; Val : Boolean := True); -- Flag16
9008 procedure Set_In_Present
9009 (N : Node_Id; Val : Boolean := True); -- Flag15
9011 procedure Set_Includes_Infinities
9012 (N : Node_Id; Val : Boolean := True); -- Flag11
9014 procedure Set_Instance_Spec
9015 (N : Node_Id; Val : Node_Id); -- Node5
9017 procedure Set_Intval
9018 (N : Node_Id; Val : Uint); -- Uint3
9020 procedure Set_Is_Accessibility_Actual
9021 (N : Node_Id; Val : Boolean := True); -- Flag13
9023 procedure Set_Is_Asynchronous_Call_Block
9024 (N : Node_Id; Val : Boolean := True); -- Flag7
9026 procedure Set_Is_Component_Left_Opnd
9027 (N : Node_Id; Val : Boolean := True); -- Flag13
9029 procedure Set_Is_Component_Right_Opnd
9030 (N : Node_Id; Val : Boolean := True); -- Flag14
9032 procedure Set_Is_Controlling_Actual
9033 (N : Node_Id; Val : Boolean := True); -- Flag16
9035 procedure Set_Is_Dynamic_Coextension
9036 (N : Node_Id; Val : Boolean := True); -- Flag18
9038 procedure Set_Is_Elsif
9039 (N : Node_Id; Val : Boolean := True); -- Flag13
9041 procedure Set_Is_Entry_Barrier_Function
9042 (N : Node_Id; Val : Boolean := True); -- Flag8
9044 procedure Set_Is_Expanded_Build_In_Place_Call
9045 (N : Node_Id; Val : Boolean := True); -- Flag11
9047 procedure Set_Is_Folded_In_Parser
9048 (N : Node_Id; Val : Boolean := True); -- Flag4
9050 procedure Set_Is_In_Discriminant_Check
9051 (N : Node_Id; Val : Boolean := True); -- Flag11
9053 procedure Set_Is_Machine_Number
9054 (N : Node_Id; Val : Boolean := True); -- Flag11
9056 procedure Set_Is_Null_Loop
9057 (N : Node_Id; Val : Boolean := True); -- Flag16
9059 procedure Set_Is_Overloaded
9060 (N : Node_Id; Val : Boolean := True); -- Flag5
9062 procedure Set_Is_Power_Of_2_For_Shift
9063 (N : Node_Id; Val : Boolean := True); -- Flag13
9065 procedure Set_Is_Protected_Subprogram_Body
9066 (N : Node_Id; Val : Boolean := True); -- Flag7
9068 procedure Set_Is_Static_Coextension
9069 (N : Node_Id; Val : Boolean := True); -- Flag14
9071 procedure Set_Is_Static_Expression
9072 (N : Node_Id; Val : Boolean := True); -- Flag6
9074 procedure Set_Is_Subprogram_Descriptor
9075 (N : Node_Id; Val : Boolean := True); -- Flag16
9077 procedure Set_Is_Task_Allocation_Block
9078 (N : Node_Id; Val : Boolean := True); -- Flag6
9080 procedure Set_Is_Task_Master
9081 (N : Node_Id; Val : Boolean := True); -- Flag5
9083 procedure Set_Iteration_Scheme
9084 (N : Node_Id; Val : Node_Id); -- Node2
9087 (N : Node_Id; Val : Entity_Id); -- Node1
9089 procedure Set_Kill_Range_Check
9090 (N : Node_Id; Val : Boolean := True); -- Flag11
9092 procedure Set_Last_Bit
9093 (N : Node_Id; Val : Node_Id); -- Node4
9095 procedure Set_Last_Name
9096 (N : Node_Id; Val : Boolean := True); -- Flag6
9098 procedure Set_Library_Unit
9099 (N : Node_Id; Val : Node_Id); -- Node4
9101 procedure Set_Label_Construct
9102 (N : Node_Id; Val : Node_Id); -- Node2
9104 procedure Set_Left_Opnd
9105 (N : Node_Id; Val : Node_Id); -- Node2
9107 procedure Set_Limited_View_Installed
9108 (N : Node_Id; Val : Boolean := True); -- Flag18
9110 procedure Set_Limited_Present
9111 (N : Node_Id; Val : Boolean := True); -- Flag17
9113 procedure Set_Literals
9114 (N : Node_Id; Val : List_Id); -- List1
9116 procedure Set_Local_Raise_Not_OK
9117 (N : Node_Id; Val : Boolean := True); -- Flag7
9119 procedure Set_Local_Raise_Statements
9120 (N : Node_Id; Val : Elist_Id); -- Elist1
9122 procedure Set_Loop_Actions
9123 (N : Node_Id; Val : List_Id); -- List2
9125 procedure Set_Loop_Parameter_Specification
9126 (N : Node_Id; Val : Node_Id); -- Node4
9128 procedure Set_Low_Bound
9129 (N : Node_Id; Val : Node_Id); -- Node1
9131 procedure Set_Mod_Clause
9132 (N : Node_Id; Val : Node_Id); -- Node2
9134 procedure Set_More_Ids
9135 (N : Node_Id; Val : Boolean := True); -- Flag5
9137 procedure Set_Must_Be_Byte_Aligned
9138 (N : Node_Id; Val : Boolean := True); -- Flag14
9140 procedure Set_Must_Not_Freeze
9141 (N : Node_Id; Val : Boolean := True); -- Flag8
9143 procedure Set_Must_Not_Override
9144 (N : Node_Id; Val : Boolean := True); -- Flag15
9146 procedure Set_Must_Override
9147 (N : Node_Id; Val : Boolean := True); -- Flag14
9150 (N : Node_Id; Val : Node_Id); -- Node2
9153 (N : Node_Id; Val : List_Id); -- List2
9155 procedure Set_Next_Entity
9156 (N : Node_Id; Val : Node_Id); -- Node2
9158 procedure Set_Next_Implicit_With
9159 (N : Node_Id; Val : Node_Id); -- Node3
9161 procedure Set_Next_Named_Actual
9162 (N : Node_Id; Val : Node_Id); -- Node4
9164 procedure Set_Next_Pragma
9165 (N : Node_Id; Val : Node_Id); -- Node1
9167 procedure Set_Next_Rep_Item
9168 (N : Node_Id; Val : Node_Id); -- Node5
9170 procedure Set_Next_Use_Clause
9171 (N : Node_Id; Val : Node_Id); -- Node3
9173 procedure Set_No_Ctrl_Actions
9174 (N : Node_Id; Val : Boolean := True); -- Flag7
9176 procedure Set_No_Elaboration_Check
9177 (N : Node_Id; Val : Boolean := True); -- Flag14
9179 procedure Set_No_Entities_Ref_In_Spec
9180 (N : Node_Id; Val : Boolean := True); -- Flag8
9182 procedure Set_No_Initialization
9183 (N : Node_Id; Val : Boolean := True); -- Flag13
9185 procedure Set_No_Truncation
9186 (N : Node_Id; Val : Boolean := True); -- Flag17
9188 procedure Set_Null_Present
9189 (N : Node_Id; Val : Boolean := True); -- Flag13
9191 procedure Set_Null_Exclusion_Present
9192 (N : Node_Id; Val : Boolean := True); -- Flag11
9194 procedure Set_Null_Exclusion_In_Return_Present
9195 (N : Node_Id; Val : Boolean := True); -- Flag14
9197 procedure Set_Null_Record_Present
9198 (N : Node_Id; Val : Boolean := True); -- Flag17
9200 procedure Set_Object_Definition
9201 (N : Node_Id; Val : Node_Id); -- Node4
9203 procedure Set_Original_Discriminant
9204 (N : Node_Id; Val : Node_Id); -- Node2
9206 procedure Set_Original_Entity
9207 (N : Node_Id; Val : Entity_Id); -- Node2
9209 procedure Set_Others_Discrete_Choices
9210 (N : Node_Id; Val : List_Id); -- List1
9212 procedure Set_Out_Present
9213 (N : Node_Id; Val : Boolean := True); -- Flag17
9215 procedure Set_Parameter_Associations
9216 (N : Node_Id; Val : List_Id); -- List3
9218 procedure Set_Parameter_List_Truncated
9219 (N : Node_Id; Val : Boolean := True); -- Flag17
9221 procedure Set_Parameter_Specifications
9222 (N : Node_Id; Val : List_Id); -- List3
9224 procedure Set_Parameter_Type
9225 (N : Node_Id; Val : Node_Id); -- Node2
9227 procedure Set_Parent_Spec
9228 (N : Node_Id; Val : Node_Id); -- Node4
9230 procedure Set_PPC_Enabled
9231 (N : Node_Id; Val : Boolean := True); -- Flag5
9233 procedure Set_Position
9234 (N : Node_Id; Val : Node_Id); -- Node2
9236 procedure Set_Pragma_Argument_Associations
9237 (N : Node_Id; Val : List_Id); -- List2
9239 procedure Set_Pragma_Identifier
9240 (N : Node_Id; Val : Node_Id); -- Node4
9242 procedure Set_Pragmas_After
9243 (N : Node_Id; Val : List_Id); -- List5
9245 procedure Set_Pragmas_Before
9246 (N : Node_Id; Val : List_Id); -- List4
9248 procedure Set_Prefix
9249 (N : Node_Id; Val : Node_Id); -- Node3
9251 procedure Set_Present_Expr
9252 (N : Node_Id; Val : Uint); -- Uint3
9254 procedure Set_Prev_Ids
9255 (N : Node_Id; Val : Boolean := True); -- Flag6
9257 procedure Set_Print_In_Hex
9258 (N : Node_Id; Val : Boolean := True); -- Flag13
9260 procedure Set_Private_Declarations
9261 (N : Node_Id; Val : List_Id); -- List3
9263 procedure Set_Private_Present
9264 (N : Node_Id; Val : Boolean := True); -- Flag15
9266 procedure Set_Procedure_To_Call
9267 (N : Node_Id; Val : Node_Id); -- Node2
9269 procedure Set_Proper_Body
9270 (N : Node_Id; Val : Node_Id); -- Node1
9272 procedure Set_Protected_Definition
9273 (N : Node_Id; Val : Node_Id); -- Node3
9275 procedure Set_Protected_Present
9276 (N : Node_Id; Val : Boolean := True); -- Flag6
9278 procedure Set_Raises_Constraint_Error
9279 (N : Node_Id; Val : Boolean := True); -- Flag7
9281 procedure Set_Range_Constraint
9282 (N : Node_Id; Val : Node_Id); -- Node4
9284 procedure Set_Range_Expression
9285 (N : Node_Id; Val : Node_Id); -- Node4
9287 procedure Set_Real_Range_Specification
9288 (N : Node_Id; Val : Node_Id); -- Node4
9290 procedure Set_Realval
9291 (N : Node_Id; Val : Ureal); -- Ureal3
9293 procedure Set_Reason
9294 (N : Node_Id; Val : Uint); -- Uint3
9296 procedure Set_Record_Extension_Part
9297 (N : Node_Id; Val : Node_Id); -- Node3
9299 procedure Set_Redundant_Use
9300 (N : Node_Id; Val : Boolean := True); -- Flag13
9302 procedure Set_Renaming_Exception
9303 (N : Node_Id; Val : Node_Id); -- Node2
9305 procedure Set_Result_Definition
9306 (N : Node_Id; Val : Node_Id); -- Node4
9308 procedure Set_Return_Object_Declarations
9309 (N : Node_Id; Val : List_Id); -- List3
9311 procedure Set_Return_Statement_Entity
9312 (N : Node_Id; Val : Node_Id); -- Node5
9314 procedure Set_Reverse_Present
9315 (N : Node_Id; Val : Boolean := True); -- Flag15
9317 procedure Set_Right_Opnd
9318 (N : Node_Id; Val : Node_Id); -- Node3
9320 procedure Set_Rounded_Result
9321 (N : Node_Id; Val : Boolean := True); -- Flag18
9323 procedure Set_SCIL_Controlling_Tag
9324 (N : Node_Id; Val : Node_Id); -- Node5
9326 procedure Set_SCIL_Entity
9327 (N : Node_Id; Val : Node_Id); -- Node4
9329 procedure Set_SCIL_Related_Node
9330 (N : Node_Id; Val : Node_Id); -- Node1
9332 procedure Set_SCIL_Tag_Value
9333 (N : Node_Id; Val : Node_Id); -- Node5
9335 procedure Set_SCIL_Target_Prim
9336 (N : Node_Id; Val : Node_Id); -- Node2
9339 (N : Node_Id; Val : Node_Id); -- Node3
9341 procedure Set_Select_Alternatives
9342 (N : Node_Id; Val : List_Id); -- List1
9344 procedure Set_Selector_Name
9345 (N : Node_Id; Val : Node_Id); -- Node2
9347 procedure Set_Selector_Names
9348 (N : Node_Id; Val : List_Id); -- List1
9350 procedure Set_Shift_Count_OK
9351 (N : Node_Id; Val : Boolean := True); -- Flag4
9353 procedure Set_Source_Type
9354 (N : Node_Id; Val : Entity_Id); -- Node1
9356 procedure Set_Specification
9357 (N : Node_Id; Val : Node_Id); -- Node1
9359 procedure Set_Statements
9360 (N : Node_Id; Val : List_Id); -- List3
9362 procedure Set_Static_Processing_OK
9363 (N : Node_Id; Val : Boolean); -- Flag4
9365 procedure Set_Storage_Pool
9366 (N : Node_Id; Val : Node_Id); -- Node1
9368 procedure Set_Strval
9369 (N : Node_Id; Val : String_Id); -- Str3
9371 procedure Set_Subtype_Indication
9372 (N : Node_Id; Val : Node_Id); -- Node5
9374 procedure Set_Subtype_Mark
9375 (N : Node_Id; Val : Node_Id); -- Node4
9377 procedure Set_Subtype_Marks
9378 (N : Node_Id; Val : List_Id); -- List2
9380 procedure Set_Suppress_Loop_Warnings
9381 (N : Node_Id; Val : Boolean := True); -- Flag17
9383 procedure Set_Synchronized_Present
9384 (N : Node_Id; Val : Boolean := True); -- Flag7
9386 procedure Set_Tagged_Present
9387 (N : Node_Id; Val : Boolean := True); -- Flag15
9389 procedure Set_Target_Type
9390 (N : Node_Id; Val : Entity_Id); -- Node2
9392 procedure Set_Task_Definition
9393 (N : Node_Id; Val : Node_Id); -- Node3
9395 procedure Set_Task_Present
9396 (N : Node_Id; Val : Boolean := True); -- Flag5
9398 procedure Set_Then_Actions
9399 (N : Node_Id; Val : List_Id); -- List2
9401 procedure Set_Then_Statements
9402 (N : Node_Id; Val : List_Id); -- List2
9404 procedure Set_Treat_Fixed_As_Integer
9405 (N : Node_Id; Val : Boolean := True); -- Flag14
9407 procedure Set_Triggering_Alternative
9408 (N : Node_Id; Val : Node_Id); -- Node1
9410 procedure Set_Triggering_Statement
9411 (N : Node_Id; Val : Node_Id); -- Node1
9413 procedure Set_TSS_Elist
9414 (N : Node_Id; Val : Elist_Id); -- Elist3
9416 procedure Set_Type_Definition
9417 (N : Node_Id; Val : Node_Id); -- Node3
9420 (N : Node_Id; Val : Node_Id); -- Node2
9422 procedure Set_Unknown_Discriminants_Present
9423 (N : Node_Id; Val : Boolean := True); -- Flag13
9425 procedure Set_Unreferenced_In_Spec
9426 (N : Node_Id; Val : Boolean := True); -- Flag7
9428 procedure Set_Variant_Part
9429 (N : Node_Id; Val : Node_Id); -- Node4
9431 procedure Set_Variants
9432 (N : Node_Id; Val : List_Id); -- List1
9434 procedure Set_Visible_Declarations
9435 (N : Node_Id; Val : List_Id); -- List2
9437 procedure Set_Was_Originally_Stub
9438 (N : Node_Id; Val : Boolean := True); -- Flag13
9440 procedure Set_Zero_Cost_Handling
9441 (N : Node_Id; Val : Boolean := True); -- Flag5
9443 -------------------------
9444 -- Iterator Procedures --
9445 -------------------------
9447 -- The call to Next_xxx (N) is equivalent to N := Next_xxx (N)
9449 procedure Next_Entity (N : in out Node_Id);
9450 procedure Next_Named_Actual (N : in out Node_Id);
9451 procedure Next_Rep_Item (N : in out Node_Id);
9452 procedure Next_Use_Clause (N : in out Node_Id);
9454 --------------------------------------
9455 -- Logical Access to End_Span Field --
9456 --------------------------------------
9458 function End_Location (N : Node_Id) return Source_Ptr;
9459 -- N is an N_If_Statement or N_Case_Statement node, and this
9460 -- function returns the location of the IF token in the END IF
9461 -- sequence by translating the value of the End_Span field.
9463 procedure Set_End_Location (N : Node_Id; S : Source_Ptr);
9464 -- N is an N_If_Statement or N_Case_Statement node. This procedure
9465 -- sets the End_Span field to correspond to the given value S. In
9466 -- other words, End_Span is set to the difference between S and
9467 -- Sloc (N), the starting location.
9469 --------------------------------
9470 -- Node_Kind Membership Tests --
9471 --------------------------------
9473 -- The following functions allow a convenient notation for testing whether
9474 -- a Node_Kind value matches any one of a list of possible values. In each
9475 -- case True is returned if the given T argument is equal to any of the V
9476 -- arguments. Note that there is a similar set of functions defined in
9477 -- Atree where the first argument is a Node_Id whose Nkind field is tested.
9482 V2 : Node_Kind) return Boolean;
9488 V3 : Node_Kind) return Boolean;
9495 V4 : Node_Kind) return Boolean;
9503 V5 : Node_Kind) return Boolean;
9512 V6 : Node_Kind) return Boolean;
9522 V7 : Node_Kind) return Boolean;
9533 V8 : Node_Kind) return Boolean;
9545 V9 : Node_Kind) return Boolean;
9547 pragma Inline (Nkind_In);
9548 -- Inline all above functions
9550 -----------------------
9551 -- Utility Functions --
9552 -----------------------
9554 function Pragma_Name (N : Node_Id) return Name_Id;
9555 pragma Inline (Pragma_Name);
9556 -- Convenient function to obtain Chars field of Pragma_Identifier
9558 -----------------------------
9559 -- Syntactic Parent Tables --
9560 -----------------------------
9562 -- These tables show for each node, and for each of the five fields,
9563 -- whether the corresponding field is syntactic (True) or semantic (False).
9564 -- Unused entries are also set to False.
9566 subtype Field_Num is Natural range 1 .. 5;
9568 Is_Syntactic_Field : constant array (Node_Kind, Field_Num) of Boolean := (
9570 -- Following entries can be built automatically from the sinfo sources
9571 -- using the makeisf utility (currently this program is in spitbol).
9574 (1 => True, -- Chars (Name1)
9575 2 => False, -- Original_Discriminant (Node2-Sem)
9576 3 => False, -- unused
9577 4 => False, -- Entity (Node4-Sem)
9578 5 => False), -- Etype (Node5-Sem)
9580 N_Integer_Literal =>
9581 (1 => False, -- unused
9582 2 => False, -- Original_Entity (Node2-Sem)
9583 3 => True, -- Intval (Uint3)
9584 4 => False, -- unused
9585 5 => False), -- Etype (Node5-Sem)
9588 (1 => False, -- unused
9589 2 => False, -- Original_Entity (Node2-Sem)
9590 3 => True, -- Realval (Ureal3)
9591 4 => False, -- Corresponding_Integer_Value (Uint4-Sem)
9592 5 => False), -- Etype (Node5-Sem)
9594 N_Character_Literal =>
9595 (1 => True, -- Chars (Name1)
9596 2 => True, -- Char_Literal_Value (Uint2)
9597 3 => False, -- unused
9598 4 => False, -- Entity (Node4-Sem)
9599 5 => False), -- Etype (Node5-Sem)
9602 (1 => False, -- unused
9603 2 => False, -- unused
9604 3 => True, -- Strval (Str3)
9605 4 => False, -- unused
9606 5 => False), -- Etype (Node5-Sem)
9609 (1 => False, -- Next_Pragma (Node1-Sem)
9610 2 => True, -- Pragma_Argument_Associations (List2)
9611 3 => True, -- Debug_Statement (Node3)
9612 4 => True, -- Pragma_Identifier (Node4)
9613 5 => False), -- Next_Rep_Item (Node5-Sem)
9615 N_Pragma_Argument_Association =>
9616 (1 => True, -- Chars (Name1)
9617 2 => False, -- unused
9618 3 => True, -- Expression (Node3)
9619 4 => False, -- unused
9620 5 => False), -- unused
9622 N_Defining_Identifier =>
9623 (1 => True, -- Chars (Name1)
9624 2 => False, -- Next_Entity (Node2-Sem)
9625 3 => False, -- Scope (Node3-Sem)
9626 4 => False, -- unused
9627 5 => False), -- Etype (Node5-Sem)
9629 N_Full_Type_Declaration =>
9630 (1 => True, -- Defining_Identifier (Node1)
9631 2 => False, -- unused
9632 3 => True, -- Type_Definition (Node3)
9633 4 => True, -- Discriminant_Specifications (List4)
9634 5 => False), -- unused
9636 N_Subtype_Declaration =>
9637 (1 => True, -- Defining_Identifier (Node1)
9638 2 => False, -- unused
9639 3 => False, -- unused
9640 4 => False, -- Generic_Parent_Type (Node4-Sem)
9641 5 => True), -- Subtype_Indication (Node5)
9643 N_Subtype_Indication =>
9644 (1 => False, -- unused
9645 2 => False, -- unused
9646 3 => True, -- Constraint (Node3)
9647 4 => True, -- Subtype_Mark (Node4)
9648 5 => False), -- Etype (Node5-Sem)
9650 N_Object_Declaration =>
9651 (1 => True, -- Defining_Identifier (Node1)
9652 2 => False, -- Handler_List_Entry (Node2-Sem)
9653 3 => True, -- Expression (Node3)
9654 4 => True, -- Object_Definition (Node4)
9655 5 => False), -- Corresponding_Generic_Association (Node5-Sem)
9657 N_Number_Declaration =>
9658 (1 => True, -- Defining_Identifier (Node1)
9659 2 => False, -- unused
9660 3 => True, -- Expression (Node3)
9661 4 => False, -- unused
9662 5 => False), -- unused
9664 N_Derived_Type_Definition =>
9665 (1 => False, -- unused
9666 2 => True, -- Interface_List (List2)
9667 3 => True, -- Record_Extension_Part (Node3)
9668 4 => False, -- unused
9669 5 => True), -- Subtype_Indication (Node5)
9671 N_Range_Constraint =>
9672 (1 => False, -- unused
9673 2 => False, -- unused
9674 3 => False, -- unused
9675 4 => True, -- Range_Expression (Node4)
9676 5 => False), -- unused
9679 (1 => True, -- Low_Bound (Node1)
9680 2 => True, -- High_Bound (Node2)
9681 3 => False, -- unused
9682 4 => False, -- unused
9683 5 => False), -- Etype (Node5-Sem)
9685 N_Enumeration_Type_Definition =>
9686 (1 => True, -- Literals (List1)
9687 2 => False, -- unused
9688 3 => False, -- unused
9689 4 => True, -- End_Label (Node4)
9690 5 => False), -- unused
9692 N_Defining_Character_Literal =>
9693 (1 => True, -- Chars (Name1)
9694 2 => False, -- Next_Entity (Node2-Sem)
9695 3 => False, -- Scope (Node3-Sem)
9696 4 => False, -- unused
9697 5 => False), -- Etype (Node5-Sem)
9699 N_Signed_Integer_Type_Definition =>
9700 (1 => True, -- Low_Bound (Node1)
9701 2 => True, -- High_Bound (Node2)
9702 3 => False, -- unused
9703 4 => False, -- unused
9704 5 => False), -- unused
9706 N_Modular_Type_Definition =>
9707 (1 => False, -- unused
9708 2 => False, -- unused
9709 3 => True, -- Expression (Node3)
9710 4 => False, -- unused
9711 5 => False), -- unused
9713 N_Floating_Point_Definition =>
9714 (1 => False, -- unused
9715 2 => True, -- Digits_Expression (Node2)
9716 3 => False, -- unused
9717 4 => True, -- Real_Range_Specification (Node4)
9718 5 => False), -- unused
9720 N_Real_Range_Specification =>
9721 (1 => True, -- Low_Bound (Node1)
9722 2 => True, -- High_Bound (Node2)
9723 3 => False, -- unused
9724 4 => False, -- unused
9725 5 => False), -- unused
9727 N_Ordinary_Fixed_Point_Definition =>
9728 (1 => False, -- unused
9729 2 => False, -- unused
9730 3 => True, -- Delta_Expression (Node3)
9731 4 => True, -- Real_Range_Specification (Node4)
9732 5 => False), -- unused
9734 N_Decimal_Fixed_Point_Definition =>
9735 (1 => False, -- unused
9736 2 => True, -- Digits_Expression (Node2)
9737 3 => True, -- Delta_Expression (Node3)
9738 4 => True, -- Real_Range_Specification (Node4)
9739 5 => False), -- unused
9741 N_Digits_Constraint =>
9742 (1 => False, -- unused
9743 2 => True, -- Digits_Expression (Node2)
9744 3 => False, -- unused
9745 4 => True, -- Range_Constraint (Node4)
9746 5 => False), -- unused
9748 N_Unconstrained_Array_Definition =>
9749 (1 => False, -- unused
9750 2 => True, -- Subtype_Marks (List2)
9751 3 => False, -- unused
9752 4 => True, -- Component_Definition (Node4)
9753 5 => False), -- unused
9755 N_Constrained_Array_Definition =>
9756 (1 => False, -- unused
9757 2 => True, -- Discrete_Subtype_Definitions (List2)
9758 3 => False, -- unused
9759 4 => True, -- Component_Definition (Node4)
9760 5 => False), -- unused
9762 N_Component_Definition =>
9763 (1 => False, -- unused
9764 2 => False, -- unused
9765 3 => True, -- Access_Definition (Node3)
9766 4 => False, -- unused
9767 5 => True), -- Subtype_Indication (Node5)
9769 N_Discriminant_Specification =>
9770 (1 => True, -- Defining_Identifier (Node1)
9771 2 => False, -- unused
9772 3 => True, -- Expression (Node3)
9773 4 => False, -- unused
9774 5 => True), -- Discriminant_Type (Node5)
9776 N_Index_Or_Discriminant_Constraint =>
9777 (1 => True, -- Constraints (List1)
9778 2 => False, -- unused
9779 3 => False, -- unused
9780 4 => False, -- unused
9781 5 => False), -- unused
9783 N_Discriminant_Association =>
9784 (1 => True, -- Selector_Names (List1)
9785 2 => False, -- unused
9786 3 => True, -- Expression (Node3)
9787 4 => False, -- unused
9788 5 => False), -- unused
9790 N_Record_Definition =>
9791 (1 => True, -- Component_List (Node1)
9792 2 => True, -- Interface_List (List2)
9793 3 => False, -- unused
9794 4 => True, -- End_Label (Node4)
9795 5 => False), -- unused
9798 (1 => False, -- unused
9799 2 => False, -- unused
9800 3 => True, -- Component_Items (List3)
9801 4 => True, -- Variant_Part (Node4)
9802 5 => False), -- unused
9804 N_Component_Declaration =>
9805 (1 => True, -- Defining_Identifier (Node1)
9806 2 => False, -- unused
9807 3 => True, -- Expression (Node3)
9808 4 => True, -- Component_Definition (Node4)
9809 5 => False), -- unused
9812 (1 => True, -- Variants (List1)
9813 2 => True, -- Name (Node2)
9814 3 => False, -- unused
9815 4 => False, -- unused
9816 5 => False), -- unused
9819 (1 => True, -- Component_List (Node1)
9820 2 => False, -- Enclosing_Variant (Node2-Sem)
9821 3 => False, -- Present_Expr (Uint3-Sem)
9822 4 => True, -- Discrete_Choices (List4)
9823 5 => False), -- Dcheck_Function (Node5-Sem)
9826 (1 => False, -- Others_Discrete_Choices (List1-Sem)
9827 2 => False, -- unused
9828 3 => False, -- unused
9829 4 => False, -- unused
9830 5 => False), -- unused
9832 N_Access_To_Object_Definition =>
9833 (1 => False, -- unused
9834 2 => False, -- unused
9835 3 => False, -- unused
9836 4 => False, -- unused
9837 5 => True), -- Subtype_Indication (Node5)
9839 N_Access_Function_Definition =>
9840 (1 => False, -- unused
9841 2 => False, -- unused
9842 3 => True, -- Parameter_Specifications (List3)
9843 4 => True, -- Result_Definition (Node4)
9844 5 => False), -- unused
9846 N_Access_Procedure_Definition =>
9847 (1 => False, -- unused
9848 2 => False, -- unused
9849 3 => True, -- Parameter_Specifications (List3)
9850 4 => False, -- unused
9851 5 => False), -- unused
9853 N_Access_Definition =>
9854 (1 => False, -- unused
9855 2 => False, -- unused
9856 3 => True, -- Access_To_Subprogram_Definition (Node3)
9857 4 => True, -- Subtype_Mark (Node4)
9858 5 => False), -- unused
9860 N_Incomplete_Type_Declaration =>
9861 (1 => True, -- Defining_Identifier (Node1)
9862 2 => False, -- unused
9863 3 => False, -- unused
9864 4 => True, -- Discriminant_Specifications (List4)
9865 5 => False), -- unused
9867 N_Explicit_Dereference =>
9868 (1 => False, -- unused
9869 2 => False, -- unused
9870 3 => True, -- Prefix (Node3)
9871 4 => False, -- Actual_Designated_Subtype (Node4-Sem)
9872 5 => False), -- Etype (Node5-Sem)
9874 N_Indexed_Component =>
9875 (1 => True, -- Expressions (List1)
9876 2 => False, -- unused
9877 3 => True, -- Prefix (Node3)
9878 4 => False, -- unused
9879 5 => False), -- Etype (Node5-Sem)
9882 (1 => False, -- unused
9883 2 => False, -- unused
9884 3 => True, -- Prefix (Node3)
9885 4 => True, -- Discrete_Range (Node4)
9886 5 => False), -- Etype (Node5-Sem)
9888 N_Selected_Component =>
9889 (1 => False, -- unused
9890 2 => True, -- Selector_Name (Node2)
9891 3 => True, -- Prefix (Node3)
9892 4 => False, -- unused
9893 5 => False), -- Etype (Node5-Sem)
9895 N_Attribute_Reference =>
9896 (1 => True, -- Expressions (List1)
9897 2 => True, -- Attribute_Name (Name2)
9898 3 => True, -- Prefix (Node3)
9899 4 => False, -- Entity (Node4-Sem)
9900 5 => False), -- Etype (Node5-Sem)
9903 (1 => True, -- Expressions (List1)
9904 2 => True, -- Component_Associations (List2)
9905 3 => False, -- Aggregate_Bounds (Node3-Sem)
9906 4 => False, -- unused
9907 5 => False), -- Etype (Node5-Sem)
9909 N_Component_Association =>
9910 (1 => True, -- Choices (List1)
9911 2 => False, -- Loop_Actions (List2-Sem)
9912 3 => True, -- Expression (Node3)
9913 4 => False, -- unused
9914 5 => False), -- unused
9916 N_Extension_Aggregate =>
9917 (1 => True, -- Expressions (List1)
9918 2 => True, -- Component_Associations (List2)
9919 3 => True, -- Ancestor_Part (Node3)
9920 4 => False, -- unused
9921 5 => False), -- Etype (Node5-Sem)
9924 (1 => False, -- unused
9925 2 => False, -- unused
9926 3 => False, -- unused
9927 4 => False, -- unused
9928 5 => False), -- Etype (Node5-Sem)
9931 (1 => False, -- Actions (List1-Sem)
9932 2 => True, -- Left_Opnd (Node2)
9933 3 => True, -- Right_Opnd (Node3)
9934 4 => False, -- unused
9935 5 => False), -- Etype (Node5-Sem)
9938 (1 => False, -- Actions (List1-Sem)
9939 2 => True, -- Left_Opnd (Node2)
9940 3 => True, -- Right_Opnd (Node3)
9941 4 => False, -- unused
9942 5 => False), -- Etype (Node5-Sem)
9945 (1 => False, -- unused
9946 2 => True, -- Left_Opnd (Node2)
9947 3 => True, -- Right_Opnd (Node3)
9948 4 => True, -- Alternatives (List4)
9949 5 => False), -- Etype (Node5-Sem)
9952 (1 => False, -- unused
9953 2 => True, -- Left_Opnd (Node2)
9954 3 => True, -- Right_Opnd (Node3)
9955 4 => True, -- Alternatives (List4)
9956 5 => False), -- Etype (Node5-Sem)
9959 (1 => True, -- Chars (Name1)
9960 2 => True, -- Left_Opnd (Node2)
9961 3 => True, -- Right_Opnd (Node3)
9962 4 => False, -- Entity (Node4-Sem)
9963 5 => False), -- Etype (Node5-Sem)
9966 (1 => True, -- Chars (Name1)
9967 2 => True, -- Left_Opnd (Node2)
9968 3 => True, -- Right_Opnd (Node3)
9969 4 => False, -- Entity (Node4-Sem)
9970 5 => False), -- Etype (Node5-Sem)
9973 (1 => True, -- Chars (Name1)
9974 2 => True, -- Left_Opnd (Node2)
9975 3 => True, -- Right_Opnd (Node3)
9976 4 => False, -- Entity (Node4-Sem)
9977 5 => False), -- Etype (Node5-Sem)
9980 (1 => True, -- Chars (Name1)
9981 2 => True, -- Left_Opnd (Node2)
9982 3 => True, -- Right_Opnd (Node3)
9983 4 => False, -- Entity (Node4-Sem)
9984 5 => False), -- Etype (Node5-Sem)
9987 (1 => True, -- Chars (Name1)
9988 2 => True, -- Left_Opnd (Node2)
9989 3 => True, -- Right_Opnd (Node3)
9990 4 => False, -- Entity (Node4-Sem)
9991 5 => False), -- Etype (Node5-Sem)
9994 (1 => True, -- Chars (Name1)
9995 2 => True, -- Left_Opnd (Node2)
9996 3 => True, -- Right_Opnd (Node3)
9997 4 => False, -- Entity (Node4-Sem)
9998 5 => False), -- Etype (Node5-Sem)
10001 (1 => True, -- Chars (Name1)
10002 2 => True, -- Left_Opnd (Node2)
10003 3 => True, -- Right_Opnd (Node3)
10004 4 => False, -- Entity (Node4-Sem)
10005 5 => False), -- Etype (Node5-Sem)
10008 (1 => True, -- Chars (Name1)
10009 2 => True, -- Left_Opnd (Node2)
10010 3 => True, -- Right_Opnd (Node3)
10011 4 => False, -- Entity (Node4-Sem)
10012 5 => False), -- Etype (Node5-Sem)
10015 (1 => True, -- Chars (Name1)
10016 2 => True, -- Left_Opnd (Node2)
10017 3 => True, -- Right_Opnd (Node3)
10018 4 => False, -- Entity (Node4-Sem)
10019 5 => False), -- Etype (Node5-Sem)
10022 (1 => True, -- Chars (Name1)
10023 2 => True, -- Left_Opnd (Node2)
10024 3 => True, -- Right_Opnd (Node3)
10025 4 => False, -- Entity (Node4-Sem)
10026 5 => False), -- Etype (Node5-Sem)
10029 (1 => True, -- Chars (Name1)
10030 2 => True, -- Left_Opnd (Node2)
10031 3 => True, -- Right_Opnd (Node3)
10032 4 => False, -- Entity (Node4-Sem)
10033 5 => False), -- Etype (Node5-Sem)
10036 (1 => True, -- Chars (Name1)
10037 2 => True, -- Left_Opnd (Node2)
10038 3 => True, -- Right_Opnd (Node3)
10039 4 => False, -- Entity (Node4-Sem)
10040 5 => False), -- Etype (Node5-Sem)
10043 (1 => True, -- Chars (Name1)
10044 2 => True, -- Left_Opnd (Node2)
10045 3 => True, -- Right_Opnd (Node3)
10046 4 => False, -- Entity (Node4-Sem)
10047 5 => False), -- Etype (Node5-Sem)
10050 (1 => True, -- Chars (Name1)
10051 2 => True, -- Left_Opnd (Node2)
10052 3 => True, -- Right_Opnd (Node3)
10053 4 => False, -- Entity (Node4-Sem)
10054 5 => False), -- Etype (Node5-Sem)
10057 (1 => True, -- Chars (Name1)
10058 2 => True, -- Left_Opnd (Node2)
10059 3 => True, -- Right_Opnd (Node3)
10060 4 => False, -- Entity (Node4-Sem)
10061 5 => False), -- Etype (Node5-Sem)
10064 (1 => True, -- Chars (Name1)
10065 2 => True, -- Left_Opnd (Node2)
10066 3 => True, -- Right_Opnd (Node3)
10067 4 => False, -- Entity (Node4-Sem)
10068 5 => False), -- Etype (Node5-Sem)
10071 (1 => True, -- Chars (Name1)
10072 2 => True, -- Left_Opnd (Node2)
10073 3 => True, -- Right_Opnd (Node3)
10074 4 => False, -- Entity (Node4-Sem)
10075 5 => False), -- Etype (Node5-Sem)
10078 (1 => True, -- Chars (Name1)
10079 2 => False, -- unused
10080 3 => True, -- Right_Opnd (Node3)
10081 4 => False, -- Entity (Node4-Sem)
10082 5 => False), -- Etype (Node5-Sem)
10085 (1 => True, -- Chars (Name1)
10086 2 => False, -- unused
10087 3 => True, -- Right_Opnd (Node3)
10088 4 => False, -- Entity (Node4-Sem)
10089 5 => False), -- Etype (Node5-Sem)
10092 (1 => True, -- Chars (Name1)
10093 2 => False, -- unused
10094 3 => True, -- Right_Opnd (Node3)
10095 4 => False, -- Entity (Node4-Sem)
10096 5 => False), -- Etype (Node5-Sem)
10099 (1 => True, -- Chars (Name1)
10100 2 => False, -- unused
10101 3 => True, -- Right_Opnd (Node3)
10102 4 => False, -- Entity (Node4-Sem)
10103 5 => False), -- Etype (Node5-Sem)
10105 N_Type_Conversion =>
10106 (1 => False, -- unused
10107 2 => False, -- unused
10108 3 => True, -- Expression (Node3)
10109 4 => True, -- Subtype_Mark (Node4)
10110 5 => False), -- Etype (Node5-Sem)
10112 N_Qualified_Expression =>
10113 (1 => False, -- unused
10114 2 => False, -- unused
10115 3 => True, -- Expression (Node3)
10116 4 => True, -- Subtype_Mark (Node4)
10117 5 => False), -- Etype (Node5-Sem)
10120 (1 => False, -- Storage_Pool (Node1-Sem)
10121 2 => False, -- Procedure_To_Call (Node2-Sem)
10122 3 => True, -- Expression (Node3)
10123 4 => False, -- Coextensions (Elist4-Sem)
10124 5 => False), -- Etype (Node5-Sem)
10126 N_Null_Statement =>
10127 (1 => False, -- unused
10128 2 => False, -- unused
10129 3 => False, -- unused
10130 4 => False, -- unused
10131 5 => False), -- unused
10134 (1 => True, -- Identifier (Node1)
10135 2 => False, -- unused
10136 3 => False, -- unused
10137 4 => False, -- unused
10138 5 => False), -- unused
10140 N_Assignment_Statement =>
10141 (1 => False, -- unused
10142 2 => True, -- Name (Node2)
10143 3 => True, -- Expression (Node3)
10144 4 => False, -- unused
10145 5 => False), -- unused
10148 (1 => True, -- Condition (Node1)
10149 2 => True, -- Then_Statements (List2)
10150 3 => True, -- Elsif_Parts (List3)
10151 4 => True, -- Else_Statements (List4)
10152 5 => True), -- End_Span (Uint5)
10155 (1 => True, -- Condition (Node1)
10156 2 => True, -- Then_Statements (List2)
10157 3 => False, -- Condition_Actions (List3-Sem)
10158 4 => False, -- unused
10159 5 => False), -- unused
10161 N_Case_Statement =>
10162 (1 => False, -- unused
10163 2 => False, -- unused
10164 3 => True, -- Expression (Node3)
10165 4 => True, -- Alternatives (List4)
10166 5 => True), -- End_Span (Uint5)
10168 N_Case_Statement_Alternative =>
10169 (1 => False, -- unused
10170 2 => False, -- unused
10171 3 => True, -- Statements (List3)
10172 4 => True, -- Discrete_Choices (List4)
10173 5 => False), -- unused
10175 N_Loop_Statement =>
10176 (1 => True, -- Identifier (Node1)
10177 2 => True, -- Iteration_Scheme (Node2)
10178 3 => True, -- Statements (List3)
10179 4 => True, -- End_Label (Node4)
10180 5 => False), -- unused
10182 N_Iteration_Scheme =>
10183 (1 => True, -- Condition (Node1)
10184 2 => False, -- unused
10185 3 => False, -- Condition_Actions (List3-Sem)
10186 4 => True, -- Loop_Parameter_Specification (Node4)
10187 5 => False), -- unused
10189 N_Loop_Parameter_Specification =>
10190 (1 => True, -- Defining_Identifier (Node1)
10191 2 => False, -- unused
10192 3 => False, -- unused
10193 4 => True, -- Discrete_Subtype_Definition (Node4)
10194 5 => False), -- unused
10196 N_Block_Statement =>
10197 (1 => True, -- Identifier (Node1)
10198 2 => True, -- Declarations (List2)
10199 3 => False, -- Activation_Chain_Entity (Node3-Sem)
10200 4 => True, -- Handled_Statement_Sequence (Node4)
10201 5 => False), -- unused
10203 N_Exit_Statement =>
10204 (1 => True, -- Condition (Node1)
10205 2 => True, -- Name (Node2)
10206 3 => False, -- unused
10207 4 => False, -- unused
10208 5 => False), -- unused
10210 N_Goto_Statement =>
10211 (1 => False, -- unused
10212 2 => True, -- Name (Node2)
10213 3 => False, -- unused
10214 4 => False, -- unused
10215 5 => False), -- unused
10217 N_Subprogram_Declaration =>
10218 (1 => True, -- Specification (Node1)
10219 2 => False, -- unused
10220 3 => False, -- Body_To_Inline (Node3-Sem)
10221 4 => False, -- Parent_Spec (Node4-Sem)
10222 5 => False), -- Corresponding_Body (Node5-Sem)
10224 N_Abstract_Subprogram_Declaration =>
10225 (1 => True, -- Specification (Node1)
10226 2 => False, -- unused
10227 3 => False, -- unused
10228 4 => False, -- unused
10229 5 => False), -- unused
10231 N_Function_Specification =>
10232 (1 => True, -- Defining_Unit_Name (Node1)
10233 2 => False, -- Elaboration_Boolean (Node2-Sem)
10234 3 => True, -- Parameter_Specifications (List3)
10235 4 => True, -- Result_Definition (Node4)
10236 5 => False), -- Generic_Parent (Node5-Sem)
10238 N_Procedure_Specification =>
10239 (1 => True, -- Defining_Unit_Name (Node1)
10240 2 => False, -- Elaboration_Boolean (Node2-Sem)
10241 3 => True, -- Parameter_Specifications (List3)
10242 4 => False, -- unused
10243 5 => False), -- Generic_Parent (Node5-Sem)
10246 (1 => True, -- Identifier (Node1)
10247 2 => True, -- Name (Node2)
10248 3 => False, -- unused
10249 4 => False, -- unused
10250 5 => False), -- unused
10252 N_Defining_Program_Unit_Name =>
10253 (1 => True, -- Defining_Identifier (Node1)
10254 2 => True, -- Name (Node2)
10255 3 => False, -- unused
10256 4 => False, -- unused
10257 5 => False), -- unused
10259 N_Operator_Symbol =>
10260 (1 => True, -- Chars (Name1)
10261 2 => False, -- unused
10262 3 => True, -- Strval (Str3)
10263 4 => False, -- Entity (Node4-Sem)
10264 5 => False), -- Etype (Node5-Sem)
10266 N_Defining_Operator_Symbol =>
10267 (1 => True, -- Chars (Name1)
10268 2 => False, -- Next_Entity (Node2-Sem)
10269 3 => False, -- Scope (Node3-Sem)
10270 4 => False, -- unused
10271 5 => False), -- Etype (Node5-Sem)
10273 N_Parameter_Specification =>
10274 (1 => True, -- Defining_Identifier (Node1)
10275 2 => True, -- Parameter_Type (Node2)
10276 3 => True, -- Expression (Node3)
10277 4 => False, -- unused
10278 5 => False), -- Default_Expression (Node5-Sem)
10280 N_Subprogram_Body =>
10281 (1 => True, -- Specification (Node1)
10282 2 => True, -- Declarations (List2)
10283 3 => False, -- Activation_Chain_Entity (Node3-Sem)
10284 4 => True, -- Handled_Statement_Sequence (Node4)
10285 5 => False), -- Corresponding_Spec (Node5-Sem)
10287 N_Procedure_Call_Statement =>
10288 (1 => False, -- Controlling_Argument (Node1-Sem)
10289 2 => True, -- Name (Node2)
10290 3 => True, -- Parameter_Associations (List3)
10291 4 => False, -- First_Named_Actual (Node4-Sem)
10292 5 => False), -- Etype (Node5-Sem)
10295 (1 => False, -- Controlling_Argument (Node1-Sem)
10296 2 => True, -- Name (Node2)
10297 3 => True, -- Parameter_Associations (List3)
10298 4 => False, -- First_Named_Actual (Node4-Sem)
10299 5 => False), -- Etype (Node5-Sem)
10301 N_Parameter_Association =>
10302 (1 => False, -- unused
10303 2 => True, -- Selector_Name (Node2)
10304 3 => True, -- Explicit_Actual_Parameter (Node3)
10305 4 => False, -- Next_Named_Actual (Node4-Sem)
10306 5 => False), -- unused
10308 N_Return_Statement =>
10309 (1 => False, -- Storage_Pool (Node1-Sem)
10310 2 => False, -- Procedure_To_Call (Node2-Sem)
10311 3 => True, -- Expression (Node3)
10312 4 => False, -- unused
10313 5 => False), -- Return_Statement_Entity (Node5-Sem)
10315 N_Extended_Return_Statement =>
10316 (1 => False, -- Storage_Pool (Node1-Sem)
10317 2 => False, -- Procedure_To_Call (Node2-Sem)
10318 3 => True, -- Return_Object_Declarations (List3)
10319 4 => True, -- Handled_Statement_Sequence (Node4)
10320 5 => False), -- Return_Statement_Entity (Node5-Sem)
10322 N_Package_Declaration =>
10323 (1 => True, -- Specification (Node1)
10324 2 => False, -- unused
10325 3 => False, -- Activation_Chain_Entity (Node3-Sem)
10326 4 => False, -- Parent_Spec (Node4-Sem)
10327 5 => False), -- Corresponding_Body (Node5-Sem)
10329 N_Package_Specification =>
10330 (1 => True, -- Defining_Unit_Name (Node1)
10331 2 => True, -- Visible_Declarations (List2)
10332 3 => True, -- Private_Declarations (List3)
10333 4 => True, -- End_Label (Node4)
10334 5 => False), -- Generic_Parent (Node5-Sem)
10337 (1 => True, -- Defining_Unit_Name (Node1)
10338 2 => True, -- Declarations (List2)
10339 3 => False, -- unused
10340 4 => True, -- Handled_Statement_Sequence (Node4)
10341 5 => False), -- Corresponding_Spec (Node5-Sem)
10343 N_Private_Type_Declaration =>
10344 (1 => True, -- Defining_Identifier (Node1)
10345 2 => False, -- unused
10346 3 => False, -- unused
10347 4 => True, -- Discriminant_Specifications (List4)
10348 5 => False), -- unused
10350 N_Private_Extension_Declaration =>
10351 (1 => True, -- Defining_Identifier (Node1)
10352 2 => True, -- Interface_List (List2)
10353 3 => False, -- unused
10354 4 => True, -- Discriminant_Specifications (List4)
10355 5 => True), -- Subtype_Indication (Node5)
10357 N_Use_Package_Clause =>
10358 (1 => False, -- unused
10359 2 => True, -- Names (List2)
10360 3 => False, -- Next_Use_Clause (Node3-Sem)
10361 4 => False, -- Hidden_By_Use_Clause (Elist4-Sem)
10362 5 => False), -- unused
10364 N_Use_Type_Clause =>
10365 (1 => False, -- unused
10366 2 => True, -- Subtype_Marks (List2)
10367 3 => False, -- Next_Use_Clause (Node3-Sem)
10368 4 => False, -- Hidden_By_Use_Clause (Elist4-Sem)
10369 5 => False), -- unused
10371 N_Object_Renaming_Declaration =>
10372 (1 => True, -- Defining_Identifier (Node1)
10373 2 => True, -- Name (Node2)
10374 3 => True, -- Access_Definition (Node3)
10375 4 => True, -- Subtype_Mark (Node4)
10376 5 => False), -- Corresponding_Generic_Association (Node5-Sem)
10378 N_Exception_Renaming_Declaration =>
10379 (1 => True, -- Defining_Identifier (Node1)
10380 2 => True, -- Name (Node2)
10381 3 => False, -- unused
10382 4 => False, -- unused
10383 5 => False), -- unused
10385 N_Package_Renaming_Declaration =>
10386 (1 => True, -- Defining_Unit_Name (Node1)
10387 2 => True, -- Name (Node2)
10388 3 => False, -- unused
10389 4 => False, -- Parent_Spec (Node4-Sem)
10390 5 => False), -- unused
10392 N_Subprogram_Renaming_Declaration =>
10393 (1 => True, -- Specification (Node1)
10394 2 => True, -- Name (Node2)
10395 3 => False, -- Corresponding_Formal_Spec (Node3-Sem)
10396 4 => False, -- Parent_Spec (Node4-Sem)
10397 5 => False), -- Corresponding_Spec (Node5-Sem)
10399 N_Generic_Package_Renaming_Declaration =>
10400 (1 => True, -- Defining_Unit_Name (Node1)
10401 2 => True, -- Name (Node2)
10402 3 => False, -- unused
10403 4 => False, -- Parent_Spec (Node4-Sem)
10404 5 => False), -- unused
10406 N_Generic_Procedure_Renaming_Declaration =>
10407 (1 => True, -- Defining_Unit_Name (Node1)
10408 2 => True, -- Name (Node2)
10409 3 => False, -- unused
10410 4 => False, -- Parent_Spec (Node4-Sem)
10411 5 => False), -- unused
10413 N_Generic_Function_Renaming_Declaration =>
10414 (1 => True, -- Defining_Unit_Name (Node1)
10415 2 => True, -- Name (Node2)
10416 3 => False, -- unused
10417 4 => False, -- Parent_Spec (Node4-Sem)
10418 5 => False), -- unused
10420 N_Task_Type_Declaration =>
10421 (1 => True, -- Defining_Identifier (Node1)
10422 2 => True, -- Interface_List (List2)
10423 3 => True, -- Task_Definition (Node3)
10424 4 => True, -- Discriminant_Specifications (List4)
10425 5 => False), -- Corresponding_Body (Node5-Sem)
10427 N_Single_Task_Declaration =>
10428 (1 => True, -- Defining_Identifier (Node1)
10429 2 => True, -- Interface_List (List2)
10430 3 => True, -- Task_Definition (Node3)
10431 4 => False, -- unused
10432 5 => False), -- unused
10434 N_Task_Definition =>
10435 (1 => False, -- unused
10436 2 => True, -- Visible_Declarations (List2)
10437 3 => True, -- Private_Declarations (List3)
10438 4 => True, -- End_Label (Node4)
10439 5 => False), -- unused
10442 (1 => True, -- Defining_Identifier (Node1)
10443 2 => True, -- Declarations (List2)
10444 3 => False, -- Activation_Chain_Entity (Node3-Sem)
10445 4 => True, -- Handled_Statement_Sequence (Node4)
10446 5 => False), -- Corresponding_Spec (Node5-Sem)
10448 N_Protected_Type_Declaration =>
10449 (1 => True, -- Defining_Identifier (Node1)
10450 2 => True, -- Interface_List (List2)
10451 3 => True, -- Protected_Definition (Node3)
10452 4 => True, -- Discriminant_Specifications (List4)
10453 5 => False), -- Corresponding_Body (Node5-Sem)
10455 N_Single_Protected_Declaration =>
10456 (1 => True, -- Defining_Identifier (Node1)
10457 2 => True, -- Interface_List (List2)
10458 3 => True, -- Protected_Definition (Node3)
10459 4 => False, -- unused
10460 5 => False), -- unused
10462 N_Protected_Definition =>
10463 (1 => False, -- unused
10464 2 => True, -- Visible_Declarations (List2)
10465 3 => True, -- Private_Declarations (List3)
10466 4 => True, -- End_Label (Node4)
10467 5 => False), -- unused
10469 N_Protected_Body =>
10470 (1 => True, -- Defining_Identifier (Node1)
10471 2 => True, -- Declarations (List2)
10472 3 => False, -- unused
10473 4 => True, -- End_Label (Node4)
10474 5 => False), -- Corresponding_Spec (Node5-Sem)
10476 N_Entry_Declaration =>
10477 (1 => True, -- Defining_Identifier (Node1)
10478 2 => False, -- unused
10479 3 => True, -- Parameter_Specifications (List3)
10480 4 => True, -- Discrete_Subtype_Definition (Node4)
10481 5 => False), -- Corresponding_Body (Node5-Sem)
10483 N_Accept_Statement =>
10484 (1 => True, -- Entry_Direct_Name (Node1)
10485 2 => True, -- Declarations (List2)
10486 3 => True, -- Parameter_Specifications (List3)
10487 4 => True, -- Handled_Statement_Sequence (Node4)
10488 5 => True), -- Entry_Index (Node5)
10491 (1 => True, -- Defining_Identifier (Node1)
10492 2 => True, -- Declarations (List2)
10493 3 => False, -- Activation_Chain_Entity (Node3-Sem)
10494 4 => True, -- Handled_Statement_Sequence (Node4)
10495 5 => True), -- Entry_Body_Formal_Part (Node5)
10497 N_Entry_Body_Formal_Part =>
10498 (1 => True, -- Condition (Node1)
10499 2 => False, -- unused
10500 3 => True, -- Parameter_Specifications (List3)
10501 4 => True, -- Entry_Index_Specification (Node4)
10502 5 => False), -- unused
10504 N_Entry_Index_Specification =>
10505 (1 => True, -- Defining_Identifier (Node1)
10506 2 => False, -- unused
10507 3 => False, -- unused
10508 4 => True, -- Discrete_Subtype_Definition (Node4)
10509 5 => False), -- unused
10511 N_Entry_Call_Statement =>
10512 (1 => False, -- unused
10513 2 => True, -- Name (Node2)
10514 3 => True, -- Parameter_Associations (List3)
10515 4 => False, -- First_Named_Actual (Node4-Sem)
10516 5 => False), -- unused
10518 N_Requeue_Statement =>
10519 (1 => False, -- unused
10520 2 => True, -- Name (Node2)
10521 3 => False, -- unused
10522 4 => False, -- unused
10523 5 => False), -- unused
10525 N_Delay_Until_Statement =>
10526 (1 => False, -- unused
10527 2 => False, -- unused
10528 3 => True, -- Expression (Node3)
10529 4 => False, -- unused
10530 5 => False), -- unused
10532 N_Delay_Relative_Statement =>
10533 (1 => False, -- unused
10534 2 => False, -- unused
10535 3 => True, -- Expression (Node3)
10536 4 => False, -- unused
10537 5 => False), -- unused
10539 N_Selective_Accept =>
10540 (1 => True, -- Select_Alternatives (List1)
10541 2 => False, -- unused
10542 3 => False, -- unused
10543 4 => True, -- Else_Statements (List4)
10544 5 => False), -- unused
10546 N_Accept_Alternative =>
10547 (1 => True, -- Condition (Node1)
10548 2 => True, -- Accept_Statement (Node2)
10549 3 => True, -- Statements (List3)
10550 4 => True, -- Pragmas_Before (List4)
10551 5 => False), -- Accept_Handler_Records (List5-Sem)
10553 N_Delay_Alternative =>
10554 (1 => True, -- Condition (Node1)
10555 2 => True, -- Delay_Statement (Node2)
10556 3 => True, -- Statements (List3)
10557 4 => True, -- Pragmas_Before (List4)
10558 5 => False), -- unused
10560 N_Terminate_Alternative =>
10561 (1 => True, -- Condition (Node1)
10562 2 => False, -- unused
10563 3 => False, -- unused
10564 4 => True, -- Pragmas_Before (List4)
10565 5 => True), -- Pragmas_After (List5)
10567 N_Timed_Entry_Call =>
10568 (1 => True, -- Entry_Call_Alternative (Node1)
10569 2 => False, -- unused
10570 3 => False, -- unused
10571 4 => True, -- Delay_Alternative (Node4)
10572 5 => False), -- unused
10574 N_Entry_Call_Alternative =>
10575 (1 => True, -- Entry_Call_Statement (Node1)
10576 2 => False, -- unused
10577 3 => True, -- Statements (List3)
10578 4 => True, -- Pragmas_Before (List4)
10579 5 => False), -- unused
10581 N_Conditional_Entry_Call =>
10582 (1 => True, -- Entry_Call_Alternative (Node1)
10583 2 => False, -- unused
10584 3 => False, -- unused
10585 4 => True, -- Else_Statements (List4)
10586 5 => False), -- unused
10588 N_Asynchronous_Select =>
10589 (1 => True, -- Triggering_Alternative (Node1)
10590 2 => True, -- Abortable_Part (Node2)
10591 3 => False, -- unused
10592 4 => False, -- unused
10593 5 => False), -- unused
10595 N_Triggering_Alternative =>
10596 (1 => True, -- Triggering_Statement (Node1)
10597 2 => False, -- unused
10598 3 => True, -- Statements (List3)
10599 4 => True, -- Pragmas_Before (List4)
10600 5 => False), -- unused
10602 N_Abortable_Part =>
10603 (1 => False, -- unused
10604 2 => False, -- unused
10605 3 => True, -- Statements (List3)
10606 4 => False, -- unused
10607 5 => False), -- unused
10609 N_Abort_Statement =>
10610 (1 => False, -- unused
10611 2 => True, -- Names (List2)
10612 3 => False, -- unused
10613 4 => False, -- unused
10614 5 => False), -- unused
10616 N_Compilation_Unit =>
10617 (1 => True, -- Context_Items (List1)
10618 2 => True, -- Unit (Node2)
10619 3 => False, -- First_Inlined_Subprogram (Node3-Sem)
10620 4 => False, -- Library_Unit (Node4-Sem)
10621 5 => True), -- Aux_Decls_Node (Node5)
10623 N_Compilation_Unit_Aux =>
10624 (1 => True, -- Actions (List1)
10625 2 => True, -- Declarations (List2)
10626 3 => False, -- unused
10627 4 => True, -- Config_Pragmas (List4)
10628 5 => True), -- Pragmas_After (List5)
10631 (1 => False, -- unused
10632 2 => True, -- Name (Node2)
10633 3 => False, -- unused
10634 4 => False, -- Library_Unit (Node4-Sem)
10635 5 => False), -- Corresponding_Spec (Node5-Sem)
10637 N_Subprogram_Body_Stub =>
10638 (1 => True, -- Specification (Node1)
10639 2 => False, -- unused
10640 3 => False, -- unused
10641 4 => False, -- Library_Unit (Node4-Sem)
10642 5 => False), -- Corresponding_Body (Node5-Sem)
10644 N_Package_Body_Stub =>
10645 (1 => True, -- Defining_Identifier (Node1)
10646 2 => False, -- unused
10647 3 => False, -- unused
10648 4 => False, -- Library_Unit (Node4-Sem)
10649 5 => False), -- Corresponding_Body (Node5-Sem)
10651 N_Task_Body_Stub =>
10652 (1 => True, -- Defining_Identifier (Node1)
10653 2 => False, -- unused
10654 3 => False, -- unused
10655 4 => False, -- Library_Unit (Node4-Sem)
10656 5 => False), -- Corresponding_Body (Node5-Sem)
10658 N_Protected_Body_Stub =>
10659 (1 => True, -- Defining_Identifier (Node1)
10660 2 => False, -- unused
10661 3 => False, -- unused
10662 4 => False, -- Library_Unit (Node4-Sem)
10663 5 => False), -- Corresponding_Body (Node5-Sem)
10666 (1 => True, -- Proper_Body (Node1)
10667 2 => True, -- Name (Node2)
10668 3 => False, -- Corresponding_Stub (Node3-Sem)
10669 4 => False, -- unused
10670 5 => False), -- unused
10672 N_Exception_Declaration =>
10673 (1 => True, -- Defining_Identifier (Node1)
10674 2 => False, -- unused
10675 3 => False, -- Expression (Node3-Sem)
10676 4 => False, -- unused
10677 5 => False), -- unused
10679 N_Handled_Sequence_Of_Statements =>
10680 (1 => True, -- At_End_Proc (Node1)
10681 2 => False, -- First_Real_Statement (Node2-Sem)
10682 3 => True, -- Statements (List3)
10683 4 => True, -- End_Label (Node4)
10684 5 => True), -- Exception_Handlers (List5)
10686 N_Exception_Handler =>
10687 (1 => False, -- Local_Raise_Statements (Elist1)
10688 2 => True, -- Choice_Parameter (Node2)
10689 3 => True, -- Statements (List3)
10690 4 => True, -- Exception_Choices (List4)
10691 5 => False), -- Exception_Label (Node5)
10693 N_Raise_Statement =>
10694 (1 => False, -- unused
10695 2 => True, -- Name (Node2)
10696 3 => True, -- Expression (Node3)
10697 4 => False, -- unused
10698 5 => False), -- unused
10700 N_Generic_Subprogram_Declaration =>
10701 (1 => True, -- Specification (Node1)
10702 2 => True, -- Generic_Formal_Declarations (List2)
10703 3 => False, -- unused
10704 4 => False, -- Parent_Spec (Node4-Sem)
10705 5 => False), -- Corresponding_Body (Node5-Sem)
10707 N_Generic_Package_Declaration =>
10708 (1 => True, -- Specification (Node1)
10709 2 => True, -- Generic_Formal_Declarations (List2)
10710 3 => False, -- Activation_Chain_Entity (Node3-Sem)
10711 4 => False, -- Parent_Spec (Node4-Sem)
10712 5 => False), -- Corresponding_Body (Node5-Sem)
10714 N_Package_Instantiation =>
10715 (1 => True, -- Defining_Unit_Name (Node1)
10716 2 => True, -- Name (Node2)
10717 3 => True, -- Generic_Associations (List3)
10718 4 => False, -- Parent_Spec (Node4-Sem)
10719 5 => False), -- Instance_Spec (Node5-Sem)
10721 N_Procedure_Instantiation =>
10722 (1 => True, -- Defining_Unit_Name (Node1)
10723 2 => True, -- Name (Node2)
10724 3 => True, -- Generic_Associations (List3)
10725 4 => False, -- Parent_Spec (Node4-Sem)
10726 5 => False), -- Instance_Spec (Node5-Sem)
10728 N_Function_Instantiation =>
10729 (1 => True, -- Defining_Unit_Name (Node1)
10730 2 => True, -- Name (Node2)
10731 3 => True, -- Generic_Associations (List3)
10732 4 => False, -- Parent_Spec (Node4-Sem)
10733 5 => False), -- Instance_Spec (Node5-Sem)
10735 N_Generic_Association =>
10736 (1 => True, -- Explicit_Generic_Actual_Parameter (Node1)
10737 2 => True, -- Selector_Name (Node2)
10738 3 => False, -- unused
10739 4 => False, -- unused
10740 5 => False), -- unused
10742 N_Formal_Object_Declaration =>
10743 (1 => True, -- Defining_Identifier (Node1)
10744 2 => False, -- unused
10745 3 => True, -- Access_Definition (Node3)
10746 4 => True, -- Subtype_Mark (Node4)
10747 5 => True), -- Default_Expression (Node5)
10749 N_Formal_Type_Declaration =>
10750 (1 => True, -- Defining_Identifier (Node1)
10751 2 => False, -- unused
10752 3 => True, -- Formal_Type_Definition (Node3)
10753 4 => True, -- Discriminant_Specifications (List4)
10754 5 => False), -- unused
10756 N_Formal_Private_Type_Definition =>
10757 (1 => False, -- unused
10758 2 => False, -- unused
10759 3 => False, -- unused
10760 4 => False, -- unused
10761 5 => False), -- unused
10763 N_Formal_Derived_Type_Definition =>
10764 (1 => False, -- unused
10765 2 => True, -- Interface_List (List2)
10766 3 => False, -- unused
10767 4 => True, -- Subtype_Mark (Node4)
10768 5 => False), -- unused
10770 N_Formal_Discrete_Type_Definition =>
10771 (1 => False, -- unused
10772 2 => False, -- unused
10773 3 => False, -- unused
10774 4 => False, -- unused
10775 5 => False), -- unused
10777 N_Formal_Signed_Integer_Type_Definition =>
10778 (1 => False, -- unused
10779 2 => False, -- unused
10780 3 => False, -- unused
10781 4 => False, -- unused
10782 5 => False), -- unused
10784 N_Formal_Modular_Type_Definition =>
10785 (1 => False, -- unused
10786 2 => False, -- unused
10787 3 => False, -- unused
10788 4 => False, -- unused
10789 5 => False), -- unused
10791 N_Formal_Floating_Point_Definition =>
10792 (1 => False, -- unused
10793 2 => False, -- unused
10794 3 => False, -- unused
10795 4 => False, -- unused
10796 5 => False), -- unused
10798 N_Formal_Ordinary_Fixed_Point_Definition =>
10799 (1 => False, -- unused
10800 2 => False, -- unused
10801 3 => False, -- unused
10802 4 => False, -- unused
10803 5 => False), -- unused
10805 N_Formal_Decimal_Fixed_Point_Definition =>
10806 (1 => False, -- unused
10807 2 => False, -- unused
10808 3 => False, -- unused
10809 4 => False, -- unused
10810 5 => False), -- unused
10812 N_Formal_Concrete_Subprogram_Declaration =>
10813 (1 => True, -- Specification (Node1)
10814 2 => True, -- Default_Name (Node2)
10815 3 => False, -- unused
10816 4 => False, -- unused
10817 5 => False), -- unused
10819 N_Formal_Abstract_Subprogram_Declaration =>
10820 (1 => True, -- Specification (Node1)
10821 2 => True, -- Default_Name (Node2)
10822 3 => False, -- unused
10823 4 => False, -- unused
10824 5 => False), -- unused
10826 N_Formal_Package_Declaration =>
10827 (1 => True, -- Defining_Identifier (Node1)
10828 2 => True, -- Name (Node2)
10829 3 => True, -- Generic_Associations (List3)
10830 4 => False, -- unused
10831 5 => False), -- Instance_Spec (Node5-Sem)
10833 N_Attribute_Definition_Clause =>
10834 (1 => True, -- Chars (Name1)
10835 2 => True, -- Name (Node2)
10836 3 => True, -- Expression (Node3)
10837 4 => False, -- unused
10838 5 => False), -- Next_Rep_Item (Node5-Sem)
10840 N_Enumeration_Representation_Clause =>
10841 (1 => True, -- Identifier (Node1)
10842 2 => False, -- unused
10843 3 => True, -- Array_Aggregate (Node3)
10844 4 => False, -- unused
10845 5 => False), -- Next_Rep_Item (Node5-Sem)
10847 N_Record_Representation_Clause =>
10848 (1 => True, -- Identifier (Node1)
10849 2 => True, -- Mod_Clause (Node2)
10850 3 => True, -- Component_Clauses (List3)
10851 4 => False, -- unused
10852 5 => False), -- Next_Rep_Item (Node5-Sem)
10854 N_Component_Clause =>
10855 (1 => True, -- Component_Name (Node1)
10856 2 => True, -- Position (Node2)
10857 3 => True, -- First_Bit (Node3)
10858 4 => True, -- Last_Bit (Node4)
10859 5 => False), -- unused
10861 N_Code_Statement =>
10862 (1 => False, -- unused
10863 2 => False, -- unused
10864 3 => True, -- Expression (Node3)
10865 4 => False, -- unused
10866 5 => False), -- unused
10868 N_Op_Rotate_Left =>
10869 (1 => True, -- Chars (Name1)
10870 2 => True, -- Left_Opnd (Node2)
10871 3 => True, -- Right_Opnd (Node3)
10872 4 => False, -- Entity (Node4-Sem)
10873 5 => False), -- Etype (Node5-Sem)
10875 N_Op_Rotate_Right =>
10876 (1 => True, -- Chars (Name1)
10877 2 => True, -- Left_Opnd (Node2)
10878 3 => True, -- Right_Opnd (Node3)
10879 4 => False, -- Entity (Node4-Sem)
10880 5 => False), -- Etype (Node5-Sem)
10883 (1 => True, -- Chars (Name1)
10884 2 => True, -- Left_Opnd (Node2)
10885 3 => True, -- Right_Opnd (Node3)
10886 4 => False, -- Entity (Node4-Sem)
10887 5 => False), -- Etype (Node5-Sem)
10889 N_Op_Shift_Right_Arithmetic =>
10890 (1 => True, -- Chars (Name1)
10891 2 => True, -- Left_Opnd (Node2)
10892 3 => True, -- Right_Opnd (Node3)
10893 4 => False, -- Entity (Node4-Sem)
10894 5 => False), -- Etype (Node5-Sem)
10896 N_Op_Shift_Right =>
10897 (1 => True, -- Chars (Name1)
10898 2 => True, -- Left_Opnd (Node2)
10899 3 => True, -- Right_Opnd (Node3)
10900 4 => False, -- Entity (Node4-Sem)
10901 5 => False), -- Etype (Node5-Sem)
10903 N_Delta_Constraint =>
10904 (1 => False, -- unused
10905 2 => False, -- unused
10906 3 => True, -- Delta_Expression (Node3)
10907 4 => True, -- Range_Constraint (Node4)
10908 5 => False), -- unused
10911 (1 => True, -- Identifier (Node1)
10912 2 => False, -- unused
10913 3 => True, -- Expression (Node3)
10914 4 => False, -- unused
10915 5 => False), -- unused
10918 (1 => False, -- unused
10919 2 => False, -- unused
10920 3 => True, -- Expression (Node3)
10921 4 => True, -- Pragmas_Before (List4)
10922 5 => False), -- unused
10924 N_Conditional_Expression =>
10925 (1 => True, -- Expressions (List1)
10926 2 => False, -- Then_Actions (List2-Sem)
10927 3 => False, -- Else_Actions (List3-Sem)
10928 4 => False, -- unused
10929 5 => False), -- Etype (Node5-Sem)
10932 (1 => True, -- Chars (Name1)
10933 2 => True, -- Selector_Name (Node2)
10934 3 => True, -- Prefix (Node3)
10935 4 => False, -- Entity (Node4-Sem)
10936 5 => False), -- Etype (Node5-Sem)
10938 N_Free_Statement =>
10939 (1 => False, -- Storage_Pool (Node1-Sem)
10940 2 => False, -- Procedure_To_Call (Node2-Sem)
10941 3 => True, -- Expression (Node3)
10942 4 => False, -- Actual_Designated_Subtype (Node4-Sem)
10943 5 => False), -- unused
10946 (1 => True, -- Actions (List1)
10947 2 => False, -- Access_Types_To_Process (Elist2-Sem)
10948 3 => False, -- TSS_Elist (Elist3-Sem)
10949 4 => False, -- Entity (Node4-Sem)
10950 5 => False), -- First_Subtype_Link (Node5-Sem)
10952 N_Implicit_Label_Declaration =>
10953 (1 => True, -- Defining_Identifier (Node1)
10954 2 => False, -- Label_Construct (Node2-Sem)
10955 3 => False, -- unused
10956 4 => False, -- unused
10957 5 => False), -- unused
10959 N_Itype_Reference =>
10960 (1 => False, -- Itype (Node1-Sem)
10961 2 => False, -- unused
10962 3 => False, -- unused
10963 4 => False, -- unused
10964 5 => False), -- unused
10966 N_Raise_Constraint_Error =>
10967 (1 => True, -- Condition (Node1)
10968 2 => False, -- unused
10969 3 => True, -- Reason (Uint3)
10970 4 => False, -- unused
10971 5 => False), -- Etype (Node5-Sem)
10973 N_Raise_Program_Error =>
10974 (1 => True, -- Condition (Node1)
10975 2 => False, -- unused
10976 3 => True, -- Reason (Uint3)
10977 4 => False, -- unused
10978 5 => False), -- Etype (Node5-Sem)
10980 N_Raise_Storage_Error =>
10981 (1 => True, -- Condition (Node1)
10982 2 => False, -- unused
10983 3 => True, -- Reason (Uint3)
10984 4 => False, -- unused
10985 5 => False), -- Etype (Node5-Sem)
10987 N_Push_Constraint_Error_Label =>
10988 (1 => False, -- unused
10989 2 => False, -- unused
10990 3 => False, -- unused
10991 4 => False, -- unused
10992 5 => False), -- unused
10994 N_Push_Program_Error_Label =>
10995 (1 => False, -- Exception_Label
10996 2 => False, -- unused
10997 3 => False, -- unused
10998 4 => False, -- unused
10999 5 => False), -- Exception_Label
11001 N_Push_Storage_Error_Label =>
11002 (1 => False, -- Exception_Label
11003 2 => False, -- unused
11004 3 => False, -- unused
11005 4 => False, -- unused
11006 5 => False), -- Exception_Label
11008 N_Pop_Constraint_Error_Label =>
11009 (1 => False, -- unused
11010 2 => False, -- unused
11011 3 => False, -- unused
11012 4 => False, -- unused
11013 5 => False), -- unused
11015 N_Pop_Program_Error_Label =>
11016 (1 => False, -- unused
11017 2 => False, -- unused
11018 3 => False, -- unused
11019 4 => False, -- unused
11020 5 => False), -- unused
11022 N_Pop_Storage_Error_Label =>
11023 (1 => False, -- unused
11024 2 => False, -- unused
11025 3 => False, -- unused
11026 4 => False, -- unused
11027 5 => False), -- unused
11030 (1 => False, -- unused
11031 2 => False, -- unused
11032 3 => True, -- Prefix (Node3)
11033 4 => False, -- unused
11034 5 => False), -- Etype (Node5-Sem)
11036 N_Subprogram_Info =>
11037 (1 => True, -- Identifier (Node1)
11038 2 => False, -- unused
11039 3 => False, -- unused
11040 4 => False, -- unused
11041 5 => False), -- Etype (Node5-Sem)
11043 N_Unchecked_Expression =>
11044 (1 => False, -- unused
11045 2 => False, -- unused
11046 3 => True, -- Expression (Node3)
11047 4 => False, -- unused
11048 5 => False), -- Etype (Node5-Sem)
11050 N_Unchecked_Type_Conversion =>
11051 (1 => False, -- unused
11052 2 => False, -- unused
11053 3 => True, -- Expression (Node3)
11054 4 => True, -- Subtype_Mark (Node4)
11055 5 => False), -- Etype (Node5-Sem)
11057 N_Validate_Unchecked_Conversion =>
11058 (1 => False, -- Source_Type (Node1-Sem)
11059 2 => False, -- Target_Type (Node2-Sem)
11060 3 => False, -- unused
11061 4 => False, -- unused
11062 5 => False), -- unused
11064 -- End of inserted output from makeisf program
11066 -- Entries for SCIL nodes
11068 N_SCIL_Dispatch_Table_Object_Init =>
11069 (1 => False, -- SCIL_Related_Node (Node1-Sem)
11070 2 => False, -- unused
11071 3 => False, -- unused
11072 4 => False, -- SCIL_Entity (Node4-Sem)
11073 5 => False), -- unused
11075 N_SCIL_Dispatch_Table_Tag_Init =>
11076 (1 => False, -- SCIL_Related_Node (Node1-Sem)
11077 2 => False, -- unused
11078 3 => False, -- unused
11079 4 => False, -- SCIL_Entity (Node4-Sem)
11080 5 => False), -- unused
11082 N_SCIL_Dispatching_Call =>
11083 (1 => False, -- SCIL_Related_Node (Node1-Sem)
11084 2 => False, -- SCIL_Target_Prim (Node2-Sem)
11085 3 => False, -- unused
11086 4 => False, -- SCIL_Entity (Node4-Sem)
11087 5 => False), -- SCIL_Controlling_Tag (Node5-Sem)
11089 N_SCIL_Membership_Test =>
11090 (1 => False, -- SCIL_Related_Node (Node1-Sem)
11091 2 => False, -- unused
11092 3 => False, -- unused
11093 4 => False, -- SCIL_Entity (Node4-Sem)
11094 5 => False), -- SCIL_Tag_Value (Node5-Sem)
11097 (1 => False, -- SCIL_Related_Node (Node1-Sem)
11098 2 => False, -- unused
11099 3 => False, -- unused
11100 4 => False, -- SCIL_Entity (Node4-Sem)
11101 5 => False), -- unused
11103 -- Entries for Empty, Error and Unused. Even thought these have a Chars
11104 -- field for debugging purposes, they are not really syntactic fields, so
11105 -- we mark all fields as unused.
11108 (1 => False, -- unused
11109 2 => False, -- unused
11110 3 => False, -- unused
11111 4 => False, -- unused
11112 5 => False), -- unused
11115 (1 => False, -- unused
11116 2 => False, -- unused
11117 3 => False, -- unused
11118 4 => False, -- unused
11119 5 => False), -- unused
11121 N_Unused_At_Start =>
11122 (1 => False, -- unused
11123 2 => False, -- unused
11124 3 => False, -- unused
11125 4 => False, -- unused
11126 5 => False), -- unused
11129 (1 => False, -- unused
11130 2 => False, -- unused
11131 3 => False, -- unused
11132 4 => False, -- unused
11133 5 => False)); -- unused
11135 --------------------
11136 -- Inline Pragmas --
11137 --------------------
11139 pragma Inline (ABE_Is_Certain);
11140 pragma Inline (Abort_Present);
11141 pragma Inline (Abortable_Part);
11142 pragma Inline (Abstract_Present);
11143 pragma Inline (Accept_Handler_Records);
11144 pragma Inline (Accept_Statement);
11145 pragma Inline (Access_Definition);
11146 pragma Inline (Access_To_Subprogram_Definition);
11147 pragma Inline (Access_Types_To_Process);
11148 pragma Inline (Actions);
11149 pragma Inline (Activation_Chain_Entity);
11150 pragma Inline (Acts_As_Spec);
11151 pragma Inline (Actual_Designated_Subtype);
11152 pragma Inline (Address_Warning_Posted);
11153 pragma Inline (Aggregate_Bounds);
11154 pragma Inline (Aliased_Present);
11155 pragma Inline (All_Others);
11156 pragma Inline (All_Present);
11157 pragma Inline (Alternatives);
11158 pragma Inline (Ancestor_Part);
11159 pragma Inline (Array_Aggregate);
11160 pragma Inline (Assignment_OK);
11161 pragma Inline (Associated_Node);
11162 pragma Inline (At_End_Proc);
11163 pragma Inline (Attribute_Name);
11164 pragma Inline (Aux_Decls_Node);
11165 pragma Inline (Backwards_OK);
11166 pragma Inline (Bad_Is_Detected);
11167 pragma Inline (Body_To_Inline);
11168 pragma Inline (Body_Required);
11169 pragma Inline (By_Ref);
11170 pragma Inline (Box_Present);
11171 pragma Inline (Char_Literal_Value);
11172 pragma Inline (Chars);
11173 pragma Inline (Check_Address_Alignment);
11174 pragma Inline (Choice_Parameter);
11175 pragma Inline (Choices);
11176 pragma Inline (Coextensions);
11177 pragma Inline (Comes_From_Extended_Return_Statement);
11178 pragma Inline (Compile_Time_Known_Aggregate);
11179 pragma Inline (Component_Associations);
11180 pragma Inline (Component_Clauses);
11181 pragma Inline (Component_Definition);
11182 pragma Inline (Component_Items);
11183 pragma Inline (Component_List);
11184 pragma Inline (Component_Name);
11185 pragma Inline (Componentwise_Assignment);
11186 pragma Inline (Condition);
11187 pragma Inline (Condition_Actions);
11188 pragma Inline (Config_Pragmas);
11189 pragma Inline (Constant_Present);
11190 pragma Inline (Constraint);
11191 pragma Inline (Constraints);
11192 pragma Inline (Context_Installed);
11193 pragma Inline (Context_Items);
11194 pragma Inline (Context_Pending);
11195 pragma Inline (Controlling_Argument);
11196 pragma Inline (Conversion_OK);
11197 pragma Inline (Corresponding_Body);
11198 pragma Inline (Corresponding_Formal_Spec);
11199 pragma Inline (Corresponding_Generic_Association);
11200 pragma Inline (Corresponding_Integer_Value);
11201 pragma Inline (Corresponding_Spec);
11202 pragma Inline (Corresponding_Stub);
11203 pragma Inline (Dcheck_Function);
11204 pragma Inline (Debug_Statement);
11205 pragma Inline (Declarations);
11206 pragma Inline (Default_Expression);
11207 pragma Inline (Default_Name);
11208 pragma Inline (Defining_Identifier);
11209 pragma Inline (Defining_Unit_Name);
11210 pragma Inline (Delay_Alternative);
11211 pragma Inline (Delay_Statement);
11212 pragma Inline (Delta_Expression);
11213 pragma Inline (Digits_Expression);
11214 pragma Inline (Discr_Check_Funcs_Built);
11215 pragma Inline (Discrete_Choices);
11216 pragma Inline (Discrete_Range);
11217 pragma Inline (Discrete_Subtype_Definition);
11218 pragma Inline (Discrete_Subtype_Definitions);
11219 pragma Inline (Discriminant_Specifications);
11220 pragma Inline (Discriminant_Type);
11221 pragma Inline (Do_Accessibility_Check);
11222 pragma Inline (Do_Discriminant_Check);
11223 pragma Inline (Do_Length_Check);
11224 pragma Inline (Do_Division_Check);
11225 pragma Inline (Do_Overflow_Check);
11226 pragma Inline (Do_Range_Check);
11227 pragma Inline (Do_Storage_Check);
11228 pragma Inline (Do_Tag_Check);
11229 pragma Inline (Elaborate_Present);
11230 pragma Inline (Elaborate_All_Desirable);
11231 pragma Inline (Elaborate_All_Present);
11232 pragma Inline (Elaborate_Desirable);
11233 pragma Inline (Elaboration_Boolean);
11234 pragma Inline (Else_Actions);
11235 pragma Inline (Else_Statements);
11236 pragma Inline (Elsif_Parts);
11237 pragma Inline (Enclosing_Variant);
11238 pragma Inline (End_Label);
11239 pragma Inline (End_Span);
11240 pragma Inline (Entity);
11241 pragma Inline (Entity_Or_Associated_Node);
11242 pragma Inline (Entry_Body_Formal_Part);
11243 pragma Inline (Entry_Call_Alternative);
11244 pragma Inline (Entry_Call_Statement);
11245 pragma Inline (Entry_Direct_Name);
11246 pragma Inline (Entry_Index);
11247 pragma Inline (Entry_Index_Specification);
11248 pragma Inline (Etype);
11249 pragma Inline (Exception_Choices);
11250 pragma Inline (Exception_Handlers);
11251 pragma Inline (Exception_Junk);
11252 pragma Inline (Exception_Label);
11253 pragma Inline (Expansion_Delayed);
11254 pragma Inline (Explicit_Actual_Parameter);
11255 pragma Inline (Explicit_Generic_Actual_Parameter);
11256 pragma Inline (Expression);
11257 pragma Inline (Expressions);
11258 pragma Inline (First_Bit);
11259 pragma Inline (First_Inlined_Subprogram);
11260 pragma Inline (First_Name);
11261 pragma Inline (First_Named_Actual);
11262 pragma Inline (First_Real_Statement);
11263 pragma Inline (First_Subtype_Link);
11264 pragma Inline (Float_Truncate);
11265 pragma Inline (Formal_Type_Definition);
11266 pragma Inline (Forwards_OK);
11267 pragma Inline (From_At_End);
11268 pragma Inline (From_At_Mod);
11269 pragma Inline (From_Default);
11270 pragma Inline (Generic_Associations);
11271 pragma Inline (Generic_Formal_Declarations);
11272 pragma Inline (Generic_Parent);
11273 pragma Inline (Generic_Parent_Type);
11274 pragma Inline (Handled_Statement_Sequence);
11275 pragma Inline (Handler_List_Entry);
11276 pragma Inline (Has_Created_Identifier);
11277 pragma Inline (Has_Dynamic_Length_Check);
11278 pragma Inline (Has_Dynamic_Range_Check);
11279 pragma Inline (Has_Init_Expression);
11280 pragma Inline (Has_Local_Raise);
11281 pragma Inline (Has_Self_Reference);
11282 pragma Inline (Has_No_Elaboration_Code);
11283 pragma Inline (Has_Priority_Pragma);
11284 pragma Inline (Has_Private_View);
11285 pragma Inline (Has_Relative_Deadline_Pragma);
11286 pragma Inline (Has_Storage_Size_Pragma);
11287 pragma Inline (Has_Task_Info_Pragma);
11288 pragma Inline (Has_Task_Name_Pragma);
11289 pragma Inline (Has_Wide_Character);
11290 pragma Inline (Has_Wide_Wide_Character);
11291 pragma Inline (Hidden_By_Use_Clause);
11292 pragma Inline (High_Bound);
11293 pragma Inline (Identifier);
11294 pragma Inline (Implicit_With);
11295 pragma Inline (Interface_List);
11296 pragma Inline (Interface_Present);
11297 pragma Inline (Includes_Infinities);
11298 pragma Inline (In_Present);
11299 pragma Inline (Instance_Spec);
11300 pragma Inline (Intval);
11301 pragma Inline (Is_Accessibility_Actual);
11302 pragma Inline (Is_Asynchronous_Call_Block);
11303 pragma Inline (Is_Component_Left_Opnd);
11304 pragma Inline (Is_Component_Right_Opnd);
11305 pragma Inline (Is_Controlling_Actual);
11306 pragma Inline (Is_Dynamic_Coextension);
11307 pragma Inline (Is_Elsif);
11308 pragma Inline (Is_Entry_Barrier_Function);
11309 pragma Inline (Is_Expanded_Build_In_Place_Call);
11310 pragma Inline (Is_Folded_In_Parser);
11311 pragma Inline (Is_In_Discriminant_Check);
11312 pragma Inline (Is_Machine_Number);
11313 pragma Inline (Is_Null_Loop);
11314 pragma Inline (Is_Overloaded);
11315 pragma Inline (Is_Power_Of_2_For_Shift);
11316 pragma Inline (Is_Protected_Subprogram_Body);
11317 pragma Inline (Is_Static_Coextension);
11318 pragma Inline (Is_Static_Expression);
11319 pragma Inline (Is_Subprogram_Descriptor);
11320 pragma Inline (Is_Task_Allocation_Block);
11321 pragma Inline (Is_Task_Master);
11322 pragma Inline (Iteration_Scheme);
11323 pragma Inline (Itype);
11324 pragma Inline (Kill_Range_Check);
11325 pragma Inline (Last_Bit);
11326 pragma Inline (Last_Name);
11327 pragma Inline (Library_Unit);
11328 pragma Inline (Label_Construct);
11329 pragma Inline (Left_Opnd);
11330 pragma Inline (Limited_View_Installed);
11331 pragma Inline (Limited_Present);
11332 pragma Inline (Literals);
11333 pragma Inline (Local_Raise_Not_OK);
11334 pragma Inline (Local_Raise_Statements);
11335 pragma Inline (Loop_Actions);
11336 pragma Inline (Loop_Parameter_Specification);
11337 pragma Inline (Low_Bound);
11338 pragma Inline (Mod_Clause);
11339 pragma Inline (More_Ids);
11340 pragma Inline (Must_Be_Byte_Aligned);
11341 pragma Inline (Must_Not_Freeze);
11342 pragma Inline (Must_Not_Override);
11343 pragma Inline (Must_Override);
11344 pragma Inline (Name);
11345 pragma Inline (Names);
11346 pragma Inline (Next_Entity);
11347 pragma Inline (Next_Implicit_With);
11348 pragma Inline (Next_Named_Actual);
11349 pragma Inline (Next_Pragma);
11350 pragma Inline (Next_Rep_Item);
11351 pragma Inline (Next_Use_Clause);
11352 pragma Inline (No_Ctrl_Actions);
11353 pragma Inline (No_Elaboration_Check);
11354 pragma Inline (No_Entities_Ref_In_Spec);
11355 pragma Inline (No_Initialization);
11356 pragma Inline (No_Truncation);
11357 pragma Inline (Null_Present);
11358 pragma Inline (Null_Exclusion_Present);
11359 pragma Inline (Null_Exclusion_In_Return_Present);
11360 pragma Inline (Null_Record_Present);
11361 pragma Inline (Object_Definition);
11362 pragma Inline (Original_Discriminant);
11363 pragma Inline (Original_Entity);
11364 pragma Inline (Others_Discrete_Choices);
11365 pragma Inline (Out_Present);
11366 pragma Inline (Parameter_Associations);
11367 pragma Inline (Parameter_Specifications);
11368 pragma Inline (Parameter_List_Truncated);
11369 pragma Inline (Parameter_Type);
11370 pragma Inline (Parent_Spec);
11371 pragma Inline (PPC_Enabled);
11372 pragma Inline (Position);
11373 pragma Inline (Pragma_Argument_Associations);
11374 pragma Inline (Pragma_Identifier);
11375 pragma Inline (Pragmas_After);
11376 pragma Inline (Pragmas_Before);
11377 pragma Inline (Prefix);
11378 pragma Inline (Present_Expr);
11379 pragma Inline (Prev_Ids);
11380 pragma Inline (Print_In_Hex);
11381 pragma Inline (Private_Declarations);
11382 pragma Inline (Private_Present);
11383 pragma Inline (Procedure_To_Call);
11384 pragma Inline (Proper_Body);
11385 pragma Inline (Protected_Definition);
11386 pragma Inline (Protected_Present);
11387 pragma Inline (Raises_Constraint_Error);
11388 pragma Inline (Range_Constraint);
11389 pragma Inline (Range_Expression);
11390 pragma Inline (Real_Range_Specification);
11391 pragma Inline (Realval);
11392 pragma Inline (Reason);
11393 pragma Inline (Record_Extension_Part);
11394 pragma Inline (Redundant_Use);
11395 pragma Inline (Renaming_Exception);
11396 pragma Inline (Result_Definition);
11397 pragma Inline (Return_Object_Declarations);
11398 pragma Inline (Return_Statement_Entity);
11399 pragma Inline (Reverse_Present);
11400 pragma Inline (Right_Opnd);
11401 pragma Inline (Rounded_Result);
11402 pragma Inline (SCIL_Controlling_Tag);
11403 pragma Inline (SCIL_Entity);
11404 pragma Inline (SCIL_Related_Node);
11405 pragma Inline (SCIL_Tag_Value);
11406 pragma Inline (SCIL_Target_Prim);
11407 pragma Inline (Scope);
11408 pragma Inline (Select_Alternatives);
11409 pragma Inline (Selector_Name);
11410 pragma Inline (Selector_Names);
11411 pragma Inline (Shift_Count_OK);
11412 pragma Inline (Source_Type);
11413 pragma Inline (Specification);
11414 pragma Inline (Statements);
11415 pragma Inline (Static_Processing_OK);
11416 pragma Inline (Storage_Pool);
11417 pragma Inline (Strval);
11418 pragma Inline (Subtype_Indication);
11419 pragma Inline (Subtype_Mark);
11420 pragma Inline (Subtype_Marks);
11421 pragma Inline (Suppress_Loop_Warnings);
11422 pragma Inline (Synchronized_Present);
11423 pragma Inline (Tagged_Present);
11424 pragma Inline (Target_Type);
11425 pragma Inline (Task_Definition);
11426 pragma Inline (Task_Present);
11427 pragma Inline (Then_Actions);
11428 pragma Inline (Then_Statements);
11429 pragma Inline (Triggering_Alternative);
11430 pragma Inline (Triggering_Statement);
11431 pragma Inline (Treat_Fixed_As_Integer);
11432 pragma Inline (TSS_Elist);
11433 pragma Inline (Type_Definition);
11434 pragma Inline (Unit);
11435 pragma Inline (Unknown_Discriminants_Present);
11436 pragma Inline (Unreferenced_In_Spec);
11437 pragma Inline (Variant_Part);
11438 pragma Inline (Variants);
11439 pragma Inline (Visible_Declarations);
11440 pragma Inline (Was_Originally_Stub);
11441 pragma Inline (Zero_Cost_Handling);
11443 pragma Inline (Set_ABE_Is_Certain);
11444 pragma Inline (Set_Abort_Present);
11445 pragma Inline (Set_Abortable_Part);
11446 pragma Inline (Set_Abstract_Present);
11447 pragma Inline (Set_Accept_Handler_Records);
11448 pragma Inline (Set_Accept_Statement);
11449 pragma Inline (Set_Access_Definition);
11450 pragma Inline (Set_Access_To_Subprogram_Definition);
11451 pragma Inline (Set_Access_Types_To_Process);
11452 pragma Inline (Set_Actions);
11453 pragma Inline (Set_Activation_Chain_Entity);
11454 pragma Inline (Set_Acts_As_Spec);
11455 pragma Inline (Set_Actual_Designated_Subtype);
11456 pragma Inline (Set_Address_Warning_Posted);
11457 pragma Inline (Set_Aggregate_Bounds);
11458 pragma Inline (Set_Aliased_Present);
11459 pragma Inline (Set_All_Others);
11460 pragma Inline (Set_All_Present);
11461 pragma Inline (Set_Alternatives);
11462 pragma Inline (Set_Ancestor_Part);
11463 pragma Inline (Set_Array_Aggregate);
11464 pragma Inline (Set_Assignment_OK);
11465 pragma Inline (Set_Associated_Node);
11466 pragma Inline (Set_At_End_Proc);
11467 pragma Inline (Set_Attribute_Name);
11468 pragma Inline (Set_Aux_Decls_Node);
11469 pragma Inline (Set_Backwards_OK);
11470 pragma Inline (Set_Bad_Is_Detected);
11471 pragma Inline (Set_Body_To_Inline);
11472 pragma Inline (Set_Body_Required);
11473 pragma Inline (Set_By_Ref);
11474 pragma Inline (Set_Box_Present);
11475 pragma Inline (Set_Char_Literal_Value);
11476 pragma Inline (Set_Chars);
11477 pragma Inline (Set_Check_Address_Alignment);
11478 pragma Inline (Set_Choice_Parameter);
11479 pragma Inline (Set_Choices);
11480 pragma Inline (Set_Coextensions);
11481 pragma Inline (Set_Comes_From_Extended_Return_Statement);
11482 pragma Inline (Set_Compile_Time_Known_Aggregate);
11483 pragma Inline (Set_Component_Associations);
11484 pragma Inline (Set_Component_Clauses);
11485 pragma Inline (Set_Component_Definition);
11486 pragma Inline (Set_Component_Items);
11487 pragma Inline (Set_Component_List);
11488 pragma Inline (Set_Component_Name);
11489 pragma Inline (Set_Componentwise_Assignment);
11490 pragma Inline (Set_Condition);
11491 pragma Inline (Set_Condition_Actions);
11492 pragma Inline (Set_Config_Pragmas);
11493 pragma Inline (Set_Constant_Present);
11494 pragma Inline (Set_Constraint);
11495 pragma Inline (Set_Constraints);
11496 pragma Inline (Set_Context_Installed);
11497 pragma Inline (Set_Context_Items);
11498 pragma Inline (Set_Context_Pending);
11499 pragma Inline (Set_Controlling_Argument);
11500 pragma Inline (Set_Conversion_OK);
11501 pragma Inline (Set_Corresponding_Body);
11502 pragma Inline (Set_Corresponding_Formal_Spec);
11503 pragma Inline (Set_Corresponding_Generic_Association);
11504 pragma Inline (Set_Corresponding_Integer_Value);
11505 pragma Inline (Set_Corresponding_Spec);
11506 pragma Inline (Set_Corresponding_Stub);
11507 pragma Inline (Set_Dcheck_Function);
11508 pragma Inline (Set_Debug_Statement);
11509 pragma Inline (Set_Declarations);
11510 pragma Inline (Set_Default_Expression);
11511 pragma Inline (Set_Default_Name);
11512 pragma Inline (Set_Defining_Identifier);
11513 pragma Inline (Set_Defining_Unit_Name);
11514 pragma Inline (Set_Delay_Alternative);
11515 pragma Inline (Set_Delay_Statement);
11516 pragma Inline (Set_Delta_Expression);
11517 pragma Inline (Set_Digits_Expression);
11518 pragma Inline (Set_Discr_Check_Funcs_Built);
11519 pragma Inline (Set_Discrete_Choices);
11520 pragma Inline (Set_Discrete_Range);
11521 pragma Inline (Set_Discrete_Subtype_Definition);
11522 pragma Inline (Set_Discrete_Subtype_Definitions);
11523 pragma Inline (Set_Discriminant_Specifications);
11524 pragma Inline (Set_Discriminant_Type);
11525 pragma Inline (Set_Do_Accessibility_Check);
11526 pragma Inline (Set_Do_Discriminant_Check);
11527 pragma Inline (Set_Do_Length_Check);
11528 pragma Inline (Set_Do_Division_Check);
11529 pragma Inline (Set_Do_Overflow_Check);
11530 pragma Inline (Set_Do_Range_Check);
11531 pragma Inline (Set_Do_Storage_Check);
11532 pragma Inline (Set_Do_Tag_Check);
11533 pragma Inline (Set_Elaborate_Present);
11534 pragma Inline (Set_Elaborate_All_Desirable);
11535 pragma Inline (Set_Elaborate_All_Present);
11536 pragma Inline (Set_Elaborate_Desirable);
11537 pragma Inline (Set_Elaboration_Boolean);
11538 pragma Inline (Set_Else_Actions);
11539 pragma Inline (Set_Else_Statements);
11540 pragma Inline (Set_Elsif_Parts);
11541 pragma Inline (Set_Enclosing_Variant);
11542 pragma Inline (Set_End_Label);
11543 pragma Inline (Set_End_Span);
11544 pragma Inline (Set_Entity);
11545 pragma Inline (Set_Entry_Body_Formal_Part);
11546 pragma Inline (Set_Entry_Call_Alternative);
11547 pragma Inline (Set_Entry_Call_Statement);
11548 pragma Inline (Set_Entry_Direct_Name);
11549 pragma Inline (Set_Entry_Index);
11550 pragma Inline (Set_Entry_Index_Specification);
11551 pragma Inline (Set_Etype);
11552 pragma Inline (Set_Exception_Choices);
11553 pragma Inline (Set_Exception_Handlers);
11554 pragma Inline (Set_Exception_Junk);
11555 pragma Inline (Set_Exception_Label);
11556 pragma Inline (Set_Expansion_Delayed);
11557 pragma Inline (Set_Explicit_Actual_Parameter);
11558 pragma Inline (Set_Explicit_Generic_Actual_Parameter);
11559 pragma Inline (Set_Expression);
11560 pragma Inline (Set_Expressions);
11561 pragma Inline (Set_First_Bit);
11562 pragma Inline (Set_First_Inlined_Subprogram);
11563 pragma Inline (Set_First_Name);
11564 pragma Inline (Set_First_Named_Actual);
11565 pragma Inline (Set_First_Real_Statement);
11566 pragma Inline (Set_First_Subtype_Link);
11567 pragma Inline (Set_Float_Truncate);
11568 pragma Inline (Set_Formal_Type_Definition);
11569 pragma Inline (Set_Forwards_OK);
11570 pragma Inline (Set_From_At_End);
11571 pragma Inline (Set_From_At_Mod);
11572 pragma Inline (Set_From_Default);
11573 pragma Inline (Set_Generic_Associations);
11574 pragma Inline (Set_Generic_Formal_Declarations);
11575 pragma Inline (Set_Generic_Parent);
11576 pragma Inline (Set_Generic_Parent_Type);
11577 pragma Inline (Set_Handled_Statement_Sequence);
11578 pragma Inline (Set_Handler_List_Entry);
11579 pragma Inline (Set_Has_Created_Identifier);
11580 pragma Inline (Set_Has_Dynamic_Length_Check);
11581 pragma Inline (Set_Has_Init_Expression);
11582 pragma Inline (Set_Has_Local_Raise);
11583 pragma Inline (Set_Has_Dynamic_Range_Check);
11584 pragma Inline (Set_Has_No_Elaboration_Code);
11585 pragma Inline (Set_Has_Priority_Pragma);
11586 pragma Inline (Set_Has_Private_View);
11587 pragma Inline (Set_Has_Relative_Deadline_Pragma);
11588 pragma Inline (Set_Has_Storage_Size_Pragma);
11589 pragma Inline (Set_Has_Task_Info_Pragma);
11590 pragma Inline (Set_Has_Task_Name_Pragma);
11591 pragma Inline (Set_Has_Wide_Character);
11592 pragma Inline (Set_Has_Wide_Wide_Character);
11593 pragma Inline (Set_Hidden_By_Use_Clause);
11594 pragma Inline (Set_High_Bound);
11595 pragma Inline (Set_Identifier);
11596 pragma Inline (Set_Implicit_With);
11597 pragma Inline (Set_Includes_Infinities);
11598 pragma Inline (Set_Interface_List);
11599 pragma Inline (Set_Interface_Present);
11600 pragma Inline (Set_In_Present);
11601 pragma Inline (Set_Instance_Spec);
11602 pragma Inline (Set_Intval);
11603 pragma Inline (Set_Is_Accessibility_Actual);
11604 pragma Inline (Set_Is_Asynchronous_Call_Block);
11605 pragma Inline (Set_Is_Component_Left_Opnd);
11606 pragma Inline (Set_Is_Component_Right_Opnd);
11607 pragma Inline (Set_Is_Controlling_Actual);
11608 pragma Inline (Set_Is_Dynamic_Coextension);
11609 pragma Inline (Set_Is_Elsif);
11610 pragma Inline (Set_Is_Entry_Barrier_Function);
11611 pragma Inline (Set_Is_Expanded_Build_In_Place_Call);
11612 pragma Inline (Set_Is_Folded_In_Parser);
11613 pragma Inline (Set_Is_In_Discriminant_Check);
11614 pragma Inline (Set_Is_Machine_Number);
11615 pragma Inline (Set_Is_Null_Loop);
11616 pragma Inline (Set_Is_Overloaded);
11617 pragma Inline (Set_Is_Power_Of_2_For_Shift);
11618 pragma Inline (Set_Is_Protected_Subprogram_Body);
11619 pragma Inline (Set_Has_Self_Reference);
11620 pragma Inline (Set_Is_Static_Coextension);
11621 pragma Inline (Set_Is_Static_Expression);
11622 pragma Inline (Set_Is_Subprogram_Descriptor);
11623 pragma Inline (Set_Is_Task_Allocation_Block);
11624 pragma Inline (Set_Is_Task_Master);
11625 pragma Inline (Set_Iteration_Scheme);
11626 pragma Inline (Set_Itype);
11627 pragma Inline (Set_Kill_Range_Check);
11628 pragma Inline (Set_Last_Bit);
11629 pragma Inline (Set_Last_Name);
11630 pragma Inline (Set_Library_Unit);
11631 pragma Inline (Set_Label_Construct);
11632 pragma Inline (Set_Left_Opnd);
11633 pragma Inline (Set_Limited_View_Installed);
11634 pragma Inline (Set_Limited_Present);
11635 pragma Inline (Set_Literals);
11636 pragma Inline (Set_Local_Raise_Not_OK);
11637 pragma Inline (Set_Local_Raise_Statements);
11638 pragma Inline (Set_Loop_Actions);
11639 pragma Inline (Set_Loop_Parameter_Specification);
11640 pragma Inline (Set_Low_Bound);
11641 pragma Inline (Set_Mod_Clause);
11642 pragma Inline (Set_More_Ids);
11643 pragma Inline (Set_Must_Be_Byte_Aligned);
11644 pragma Inline (Set_Must_Not_Freeze);
11645 pragma Inline (Set_Must_Not_Override);
11646 pragma Inline (Set_Must_Override);
11647 pragma Inline (Set_Name);
11648 pragma Inline (Set_Names);
11649 pragma Inline (Set_Next_Entity);
11650 pragma Inline (Set_Next_Implicit_With);
11651 pragma Inline (Set_Next_Named_Actual);
11652 pragma Inline (Set_Next_Pragma);
11653 pragma Inline (Set_Next_Rep_Item);
11654 pragma Inline (Set_Next_Use_Clause);
11655 pragma Inline (Set_No_Ctrl_Actions);
11656 pragma Inline (Set_No_Elaboration_Check);
11657 pragma Inline (Set_No_Entities_Ref_In_Spec);
11658 pragma Inline (Set_No_Initialization);
11659 pragma Inline (Set_No_Truncation);
11660 pragma Inline (Set_Null_Present);
11661 pragma Inline (Set_Null_Exclusion_Present);
11662 pragma Inline (Set_Null_Exclusion_In_Return_Present);
11663 pragma Inline (Set_Null_Record_Present);
11664 pragma Inline (Set_Object_Definition);
11665 pragma Inline (Set_Original_Discriminant);
11666 pragma Inline (Set_Original_Entity);
11667 pragma Inline (Set_Others_Discrete_Choices);
11668 pragma Inline (Set_Out_Present);
11669 pragma Inline (Set_Parameter_Associations);
11670 pragma Inline (Set_Parameter_Specifications);
11671 pragma Inline (Set_Parameter_List_Truncated);
11672 pragma Inline (Set_Parameter_Type);
11673 pragma Inline (Set_Parent_Spec);
11674 pragma Inline (Set_PPC_Enabled);
11675 pragma Inline (Set_Position);
11676 pragma Inline (Set_Pragma_Argument_Associations);
11677 pragma Inline (Set_Pragma_Identifier);
11678 pragma Inline (Set_Pragmas_After);
11679 pragma Inline (Set_Pragmas_Before);
11680 pragma Inline (Set_Prefix);
11681 pragma Inline (Set_Present_Expr);
11682 pragma Inline (Set_Prev_Ids);
11683 pragma Inline (Set_Print_In_Hex);
11684 pragma Inline (Set_Private_Declarations);
11685 pragma Inline (Set_Private_Present);
11686 pragma Inline (Set_Procedure_To_Call);
11687 pragma Inline (Set_Proper_Body);
11688 pragma Inline (Set_Protected_Definition);
11689 pragma Inline (Set_Protected_Present);
11690 pragma Inline (Set_Raises_Constraint_Error);
11691 pragma Inline (Set_Range_Constraint);
11692 pragma Inline (Set_Range_Expression);
11693 pragma Inline (Set_Real_Range_Specification);
11694 pragma Inline (Set_Realval);
11695 pragma Inline (Set_Reason);
11696 pragma Inline (Set_Record_Extension_Part);
11697 pragma Inline (Set_Redundant_Use);
11698 pragma Inline (Set_Renaming_Exception);
11699 pragma Inline (Set_Result_Definition);
11700 pragma Inline (Set_Return_Object_Declarations);
11701 pragma Inline (Set_Reverse_Present);
11702 pragma Inline (Set_Right_Opnd);
11703 pragma Inline (Set_Rounded_Result);
11704 pragma Inline (Set_SCIL_Controlling_Tag);
11705 pragma Inline (Set_SCIL_Entity);
11706 pragma Inline (Set_SCIL_Related_Node);
11707 pragma Inline (Set_SCIL_Tag_Value);
11708 pragma Inline (Set_SCIL_Target_Prim);
11709 pragma Inline (Set_Scope);
11710 pragma Inline (Set_Select_Alternatives);
11711 pragma Inline (Set_Selector_Name);
11712 pragma Inline (Set_Selector_Names);
11713 pragma Inline (Set_Shift_Count_OK);
11714 pragma Inline (Set_Source_Type);
11715 pragma Inline (Set_Specification);
11716 pragma Inline (Set_Statements);
11717 pragma Inline (Set_Static_Processing_OK);
11718 pragma Inline (Set_Storage_Pool);
11719 pragma Inline (Set_Strval);
11720 pragma Inline (Set_Subtype_Indication);
11721 pragma Inline (Set_Subtype_Mark);
11722 pragma Inline (Set_Subtype_Marks);
11723 pragma Inline (Set_Suppress_Loop_Warnings);
11724 pragma Inline (Set_Synchronized_Present);
11725 pragma Inline (Set_Tagged_Present);
11726 pragma Inline (Set_Target_Type);
11727 pragma Inline (Set_Task_Definition);
11728 pragma Inline (Set_Task_Present);
11729 pragma Inline (Set_Then_Actions);
11730 pragma Inline (Set_Then_Statements);
11731 pragma Inline (Set_Triggering_Alternative);
11732 pragma Inline (Set_Triggering_Statement);
11733 pragma Inline (Set_Treat_Fixed_As_Integer);
11734 pragma Inline (Set_TSS_Elist);
11735 pragma Inline (Set_Type_Definition);
11736 pragma Inline (Set_Unit);
11737 pragma Inline (Set_Unknown_Discriminants_Present);
11738 pragma Inline (Set_Unreferenced_In_Spec);
11739 pragma Inline (Set_Variant_Part);
11740 pragma Inline (Set_Variants);
11741 pragma Inline (Set_Visible_Declarations);
11742 pragma Inline (Set_Was_Originally_Stub);
11743 pragma Inline (Set_Zero_Cost_Handling);
11745 N_Simple_Return_Statement : constant Node_Kind := N_Return_Statement;
11746 -- Rename N_Return_Statement to be N_Simple_Return_Statement. Clients
11747 -- should refer to N_Simple_Return_Statement.