gcc/cp/cp-tree.def

   1 /* This file contains the definitions and documentation for the
   2    additional tree codes used in the GNU C++ compiler (see tree.def
   3    for the standard codes).
   4    Copyright (C) 1987, 1988, 1990, 1993 Free Software Foundation, Inc.
   5    Hacked by Michael Tiemann (tiemann@cygnus.com)
   6
   7 This file is part of GNU CC.
   8
   9 GNU CC is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2, or (at your option)
  12 any later version.
  13
  14 GNU CC is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GNU CC; see the file COPYING.  If not, write to
  21 the Free Software Foundation, 59 Temple Place - Suite 330,
  22 Boston, MA 02111-1307, USA.  */
  23
  24
  25 /* Reference to the contents of an offset
  26    (a value whose type is an OFFSET_TYPE).
  27    Operand 0 is the object within which the offset is taken.
  28    Operand 1 is the offset.  The language independent OFFSET_REF
  29    just won't work for us.  */
  30 DEFTREECODE (CP_OFFSET_REF, "cp_offset_ref", "r", 2)
  31
  32 /* For DELETE_EXPR, operand 0 is the store to be destroyed.
  33    Operand 1 is the value to pass to the destroying function
  34    saying whether the store should be deallocated as well.  */
  35 DEFTREECODE (DELETE_EXPR, "dl_expr", "e", 2)
  36 DEFTREECODE (VEC_DELETE_EXPR, "vec_dl_expr", "e", 2)
  37
  38 /* For a UNSAVE_EXPR, operand 0 is the value to unsave.  By unsave, we
  39    mean that all _EXPRs such as TARGET_EXPRs, SAVE_EXPRs,
  40    WITH_CLEANUP_EXPRs, CALL_EXPRs and RTL_EXPRs, that are protected
  41    from being evaluated more than once should be reset so that a new
  42    expand_expr call of this expr will cause those to be re-evaluated.
  43    This is useful when we want to reuse a tree in different places,
  44    but where we must re-expand.  */
  45 DEFTREECODE (UNSAVE_EXPR, "unsave_expr", "e", 1)
  46
  47 /* Value is reference to particular overloaded class method.
  48    Operand 0 is the class name (an IDENTIFIER_NODE);
  49    operand 1 is the field (also an IDENTIFIER_NODE).
  50    The COMPLEXITY field holds the class level (usually 0).  */
  51 DEFTREECODE (SCOPE_REF, "scope_ref", "r", 2)
  52
  53 /* When composing an object with a member, this is the result.
  54    Operand 0 is the object.  Operand 1 is the member (usually
  55    a dereferenced pointer to member).  */
  56 DEFTREECODE (MEMBER_REF, "member_ref", "r", 2)
  57
  58 /* Type conversion operator in C++.  TREE_TYPE is type that this
  59    operator converts to.  Operand is expression to be converted.  */
  60 DEFTREECODE (TYPE_EXPR, "type_expr", "e", 1)
  61
  62 /* For CPLUS_NEW_EXPR, operand 0 is function which performs initialization,
  63    operand 1 is argument list to initialization function,
  64    and operand 2 is the slot which was allocated for this expression.  */
  65 DEFTREECODE (NEW_EXPR, "nw_expr", "e", 3)
  66 DEFTREECODE (VEC_NEW_EXPR, "vec_nw_expr", "e", 3)
  67
  68 /* A throw expression.  operand 0 is the expression, if there was one,
  69    else it is NULL_TREE.  */
  70 DEFTREECODE (THROW_EXPR, "throw_expr", "e", 1)
  71
  72 /* Template definition.  The following fields have the specified uses,
  73    although there are other macros in cp-tree.h that should be used for
  74    accessing this data.
  75         DECL_ARGUMENTS          template parm vector
  76         DECL_TEMPLATE_INFO      template text &c
  77         DECL_VINDEX             list of instantiations already produced;
  78                                 only done for functions so far
  79    For class template:
  80         DECL_INITIAL            associated templates (methods &c)
  81         DECL_RESULT             null
  82    For non-class templates:
  83         TREE_TYPE               type of object to be constructed
  84         DECL_RESULT             decl for object to be created
  85                                 (e.g., FUNCTION_DECL with tmpl parms used)
  86  */
  87 DEFTREECODE (TEMPLATE_DECL, "template_decl", "d", 0)
  88
  89 /* Index into a template parameter list.  This parameter must be a type.
  90    Use TYPE_FIELDS to find parmlist and index.  */
  91 DEFTREECODE (TEMPLATE_TYPE_PARM, "template_type_parm", "t", 0)
  92
  93 /* Index into a template parameter list.  This parameter must not be a
  94    type.  */
  95 DEFTREECODE (TEMPLATE_CONST_PARM, "template_const_parm", "c", 2)
  96
  97 /* For uninstantiated parameterized types.
  98         TYPE_VALUES     tree list:
  99                 TREE_PURPOSE    template decl
 100                 TREE_VALUE      parm vector
 101                 TREE_CHAIN      null
 102    Other useful fields to be defined later.  */
 103 DEFTREECODE (UNINSTANTIATED_P_TYPE, "uninstantiated_p_type", "t", 0)
 104
 105 /* A thunk is a stub function.
 106
 107    Thunks are used to implement multiple inheritance:
 108    At run-time, such a thunk subtracts THUNK_DELTA (an int, not a tree)
 109    from the this pointer, and then jumps to DECL_INITIAL
 110    (which is an ADDR_EXPR whose operand is a FUNCTION_DECL).
 111
 112    Other kinds of thunks may be defined later. */
 113 DEFTREECODE (THUNK_DECL, "thunk_decl", "d", 0)
 114
 115 /* A namespace declaration.  */
 116 DEFTREECODE (NAMESPACE_DECL, "namespace_decl", "d", 0)