-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2014, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2015, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-------------
procedure Analyze (N : Node_Id) is
+ GM : constant Ghost_Mode_Type := Ghost_Mode;
+ -- Save the current Ghost mode in effect in case the construct sets a
+ -- different mode.
+
begin
Debug_A_Entry ("analyzing ", N);
-- Otherwise processing depends on the node kind
case Nkind (N) is
-
when N_Abort_Statement =>
Analyze_Abort_Statement (N);
-- the call to analyze them is generated when the full list is
-- analyzed.
- when
- N_SCIL_Dispatch_Table_Tag_Init |
- N_SCIL_Dispatching_Call |
- N_SCIL_Membership_Test =>
+ when N_SCIL_Dispatch_Table_Tag_Init |
+ N_SCIL_Dispatching_Call |
+ N_SCIL_Membership_Test =>
null;
-- For the remaining node types, we generate compiler abort, because
-- node appears only in the context of a type declaration, and is
-- processed by the analyze routine for type declarations.
- when
- N_Abortable_Part |
- N_Access_Definition |
- N_Access_Function_Definition |
- N_Access_Procedure_Definition |
- N_Access_To_Object_Definition |
- N_Aspect_Specification |
- N_Case_Expression_Alternative |
- N_Case_Statement_Alternative |
- N_Compilation_Unit_Aux |
- N_Component_Association |
- N_Component_Clause |
- N_Component_Definition |
- N_Component_List |
- N_Constrained_Array_Definition |
- N_Contract |
- N_Decimal_Fixed_Point_Definition |
- N_Defining_Character_Literal |
- N_Defining_Identifier |
- N_Defining_Operator_Symbol |
- N_Defining_Program_Unit_Name |
- N_Delta_Constraint |
- N_Derived_Type_Definition |
- N_Designator |
- N_Digits_Constraint |
- N_Discriminant_Association |
- N_Discriminant_Specification |
- N_Elsif_Part |
- N_Entry_Call_Statement |
- N_Enumeration_Type_Definition |
- N_Exception_Handler |
- N_Floating_Point_Definition |
- N_Formal_Decimal_Fixed_Point_Definition |
- N_Formal_Derived_Type_Definition |
- N_Formal_Discrete_Type_Definition |
- N_Formal_Floating_Point_Definition |
- N_Formal_Modular_Type_Definition |
- N_Formal_Ordinary_Fixed_Point_Definition |
- N_Formal_Private_Type_Definition |
- N_Formal_Incomplete_Type_Definition |
- N_Formal_Signed_Integer_Type_Definition |
- N_Function_Specification |
- N_Generic_Association |
- N_Index_Or_Discriminant_Constraint |
- N_Iteration_Scheme |
- N_Mod_Clause |
- N_Modular_Type_Definition |
- N_Ordinary_Fixed_Point_Definition |
- N_Parameter_Specification |
- N_Pragma_Argument_Association |
- N_Procedure_Specification |
- N_Real_Range_Specification |
- N_Record_Definition |
- N_Signed_Integer_Type_Definition |
- N_Unconstrained_Array_Definition |
- N_Unused_At_Start |
- N_Unused_At_End |
- N_Variant =>
-
+ when N_Abortable_Part |
+ N_Access_Definition |
+ N_Access_Function_Definition |
+ N_Access_Procedure_Definition |
+ N_Access_To_Object_Definition |
+ N_Aspect_Specification |
+ N_Case_Expression_Alternative |
+ N_Case_Statement_Alternative |
+ N_Compilation_Unit_Aux |
+ N_Component_Association |
+ N_Component_Clause |
+ N_Component_Definition |
+ N_Component_List |
+ N_Constrained_Array_Definition |
+ N_Contract |
+ N_Decimal_Fixed_Point_Definition |
+ N_Defining_Character_Literal |
+ N_Defining_Identifier |
+ N_Defining_Operator_Symbol |
+ N_Defining_Program_Unit_Name |
+ N_Delta_Constraint |
+ N_Derived_Type_Definition |
+ N_Designator |
+ N_Digits_Constraint |
+ N_Discriminant_Association |
+ N_Discriminant_Specification |
+ N_Elsif_Part |
+ N_Entry_Call_Statement |
+ N_Enumeration_Type_Definition |
+ N_Exception_Handler |
+ N_Floating_Point_Definition |
+ N_Formal_Decimal_Fixed_Point_Definition |
+ N_Formal_Derived_Type_Definition |
+ N_Formal_Discrete_Type_Definition |
+ N_Formal_Floating_Point_Definition |
+ N_Formal_Modular_Type_Definition |
+ N_Formal_Ordinary_Fixed_Point_Definition |
+ N_Formal_Private_Type_Definition |
+ N_Formal_Incomplete_Type_Definition |
+ N_Formal_Signed_Integer_Type_Definition |
+ N_Function_Specification |
+ N_Generic_Association |
+ N_Index_Or_Discriminant_Constraint |
+ N_Iteration_Scheme |
+ N_Mod_Clause |
+ N_Modular_Type_Definition |
+ N_Ordinary_Fixed_Point_Definition |
+ N_Parameter_Specification |
+ N_Pragma_Argument_Association |
+ N_Procedure_Specification |
+ N_Real_Range_Specification |
+ N_Record_Definition |
+ N_Signed_Integer_Type_Definition |
+ N_Unconstrained_Array_Definition |
+ N_Unused_At_Start |
+ N_Unused_At_End |
+ N_Variant =>
raise Program_Error;
end case;
then
Expand (N);
end if;
+
+ -- Restore the original Ghost mode once analysis and expansion have
+ -- taken place.
+
+ Ghost_Mode := GM;
end Analyze;
-- Version with check(s) suppressed
---------------
procedure Semantics (Comp_Unit : Node_Id) is
+ procedure Do_Analyze;
+ -- Perform the analysis of the compilation unit
+
+ ----------------
+ -- Do_Analyze --
+ ----------------
+
+ procedure Do_Analyze is
+ GM : constant Ghost_Mode_Type := Ghost_Mode;
+ -- Save the current Ghost mode in effect in case the compilation unit
+ -- is withed from a unit with a different Ghost mode.
+
+ List : Elist_Id;
+
+ begin
+ List := Save_Scope_Stack;
+ Push_Scope (Standard_Standard);
+
+ -- Set up a clean environment before analyzing
+
+ Ghost_Mode := None;
+ Outer_Generic_Scope := Empty;
+ Scope_Suppress := Suppress_Options;
+ Scope_Stack.Table
+ (Scope_Stack.Last).Component_Alignment_Default := Calign_Default;
+ Scope_Stack.Table
+ (Scope_Stack.Last).Is_Active_Stack_Base := True;
+
+ -- Now analyze the top level compilation unit node
+
+ Analyze (Comp_Unit);
+
+ -- Check for scope mismatch on exit from compilation
+
+ pragma Assert (Current_Scope = Standard_Standard
+ or else Comp_Unit = Cunit (Main_Unit));
+
+ -- Then pop entry for Standard, and pop implicit types
+
+ Pop_Scope;
+ Restore_Scope_Stack (List);
+ Ghost_Mode := GM;
+ end Do_Analyze;
+
+ -- Local variables
-- The following locations save the corresponding global flags and
-- variables so that they can be restored on completion. This is needed
S_Outer_Gen_Scope : constant Entity_Id := Outer_Generic_Scope;
S_Style_Check : constant Boolean := Style_Check;
+ Already_Analyzed : constant Boolean := Analyzed (Comp_Unit);
+
Curunit : constant Unit_Number_Type := Get_Cunit_Unit_Number (Comp_Unit);
-- New value of Current_Sem_Unit
-- unit. All with'ed units are analyzed with config restrictions reset
-- and we need to restore these saved values at the end.
- procedure Do_Analyze;
- -- Procedure to analyze the compilation unit
-
- ----------------
- -- Do_Analyze --
- ----------------
-
- procedure Do_Analyze is
- List : Elist_Id;
-
- begin
- List := Save_Scope_Stack;
- Push_Scope (Standard_Standard);
- Scope_Suppress := Suppress_Options;
- Scope_Stack.Table
- (Scope_Stack.Last).Component_Alignment_Default := Calign_Default;
- Scope_Stack.Table
- (Scope_Stack.Last).Is_Active_Stack_Base := True;
- Outer_Generic_Scope := Empty;
-
- -- Now analyze the top level compilation unit node
-
- Analyze (Comp_Unit);
-
- -- Check for scope mismatch on exit from compilation
-
- pragma Assert (Current_Scope = Standard_Standard
- or else Comp_Unit = Cunit (Main_Unit));
-
- -- Then pop entry for Standard, and pop implicit types
-
- Pop_Scope;
- Restore_Scope_Stack (List);
- end Do_Analyze;
-
- Already_Analyzed : constant Boolean := Analyzed (Comp_Unit);
-
-- Start of processing for Semantics
begin
(Operating_Mode = Generate_Code
- -- or if special debug flag -gnatdx is set
+ -- Or if special debug flag -gnatdx is set
or else Debug_Flag_X
+ -- Or if we are generating C code
+
+ or else Generate_C_Code
+
-- Or if in configuration run-time mode. We do this so we get
-- error messages about missing entities in the run-time even
-- if we are compiling in -gnatc (no code generation) mode.
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