| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- C S T A N D -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1992-2004 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- -- |
| -- ware Foundation; either version 2, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- |
| -- for more details. You should have received a copy of the GNU General -- |
| -- Public License distributed with GNAT; see file COPYING. If not, write -- |
| -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- |
| -- MA 02111-1307, USA. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| with Atree; use Atree; |
| with Csets; use Csets; |
| with Debug; use Debug; |
| with Einfo; use Einfo; |
| with Layout; use Layout; |
| with Namet; use Namet; |
| with Nlists; use Nlists; |
| with Nmake; use Nmake; |
| with Opt; use Opt; |
| with Output; use Output; |
| with Targparm; use Targparm; |
| with Tbuild; use Tbuild; |
| with Ttypes; use Ttypes; |
| with Ttypef; use Ttypef; |
| with Scn; |
| with Sem_Mech; use Sem_Mech; |
| with Sem_Util; use Sem_Util; |
| with Sinfo; use Sinfo; |
| with Snames; use Snames; |
| with Stand; use Stand; |
| with Uintp; use Uintp; |
| with Urealp; use Urealp; |
| |
| package body CStand is |
| |
| Stloc : constant Source_Ptr := Standard_Location; |
| Staloc : constant Source_Ptr := Standard_ASCII_Location; |
| -- Standard abbreviations used throughout this package |
| |
| ----------------------- |
| -- Local Subprograms -- |
| ----------------------- |
| |
| procedure Build_Float_Type (E : Entity_Id; Siz : Int; Digs : Int); |
| -- Procedure to build standard predefined float base type. The first |
| -- parameter is the entity for the type, and the second parameter |
| -- is the size in bits. The third parameter is the digits value. |
| |
| procedure Build_Signed_Integer_Type (E : Entity_Id; Siz : Int); |
| -- Procedure to build standard predefined signed integer subtype. The |
| -- first parameter is the entity for the subtype. The second parameter |
| -- is the size in bits. The corresponding base type is not built by |
| -- this routine but instead must be built by the caller where needed. |
| |
| procedure Create_Operators; |
| -- Make entries for each of the predefined operators in Standard |
| |
| procedure Create_Unconstrained_Base_Type |
| (E : Entity_Id; |
| K : Entity_Kind); |
| -- The predefined signed integer types are constrained subtypes which |
| -- must have a corresponding unconstrained base type. This type is almost |
| -- useless. The only place it has semantics is Subtypes_Statically_Match. |
| -- Consequently, we arrange for it to be identical apart from the setting |
| -- of the constrained bit. This routine takes an entity E for the Type, |
| -- copies it to estabish the base type, then resets the Ekind of the |
| -- original entity to K (the Ekind for the subtype). The Etype field of |
| -- E is set by the call (to point to the created base type entity), and |
| -- also the Is_Constrained flag of E is set. |
| -- |
| -- To understand the exact requirement for this, see RM 3.5.4(11) which |
| -- makes it clear that Integer, for example, is constrained, with the |
| -- constraint bounds matching the bounds of the (unconstrained) base |
| -- type. The point is that Integer and Integer'Base have identical |
| -- bounds, but do not statically match, since a subtype with constraints |
| -- never matches a subtype with no constraints. |
| |
| function Identifier_For (S : Standard_Entity_Type) return Node_Id; |
| -- Returns an identifier node with the same name as the defining |
| -- identifier corresponding to the given Standard_Entity_Type value |
| |
| procedure Make_Component |
| (Rec : Entity_Id; |
| Typ : Entity_Id; |
| Nam : String); |
| -- Build a record component with the given type and name, and append to |
| -- the list of components of Rec. |
| |
| function Make_Formal |
| (Typ : Entity_Id; |
| Formal_Name : String) return Entity_Id; |
| -- Construct entity for subprogram formal with given name and type |
| |
| function Make_Integer (V : Uint) return Node_Id; |
| -- Builds integer literal with given value |
| |
| procedure Make_Name (Id : Entity_Id; Nam : String); |
| -- Make an entry in the names table for Nam, and set as Chars field of Id |
| |
| function New_Operator (Op : Name_Id; Typ : Entity_Id) return Entity_Id; |
| -- Build entity for standard operator with given name and type. |
| |
| function New_Standard_Entity |
| (New_Node_Kind : Node_Kind := N_Defining_Identifier) return Entity_Id; |
| -- Builds a new entity for Standard |
| |
| procedure Print_Standard; |
| -- Print representation of package Standard if switch set |
| |
| procedure Set_Integer_Bounds |
| (Id : Entity_Id; |
| Typ : Entity_Id; |
| Lb : Uint; |
| Hb : Uint); |
| -- Procedure to set bounds for integer type or subtype. Id is the entity |
| -- whose bounds and type are to be set. The Typ parameter is the Etype |
| -- value for the entity (which will be the same as Id for all predefined |
| -- integer base types. The third and fourth parameters are the bounds. |
| |
| ---------------------- |
| -- Build_Float_Type -- |
| ---------------------- |
| |
| procedure Build_Float_Type (E : Entity_Id; Siz : Int; Digs : Int) is |
| begin |
| Set_Type_Definition (Parent (E), |
| Make_Floating_Point_Definition (Stloc, |
| Digits_Expression => Make_Integer (UI_From_Int (Digs)))); |
| Set_Ekind (E, E_Floating_Point_Type); |
| Set_Etype (E, E); |
| Init_Size (E, Siz); |
| Set_Prim_Alignment (E); |
| Init_Digits_Value (E, Digs); |
| Set_Float_Bounds (E); |
| Set_Is_Frozen (E); |
| Set_Is_Public (E); |
| Set_Size_Known_At_Compile_Time (E); |
| end Build_Float_Type; |
| |
| ------------------------------- |
| -- Build_Signed_Integer_Type -- |
| ------------------------------- |
| |
| procedure Build_Signed_Integer_Type (E : Entity_Id; Siz : Int) is |
| U2Siz1 : constant Uint := 2 ** (Siz - 1); |
| Lbound : constant Uint := -U2Siz1; |
| Ubound : constant Uint := U2Siz1 - 1; |
| |
| begin |
| Set_Type_Definition (Parent (E), |
| Make_Signed_Integer_Type_Definition (Stloc, |
| Low_Bound => Make_Integer (Lbound), |
| High_Bound => Make_Integer (Ubound))); |
| |
| Set_Ekind (E, E_Signed_Integer_Type); |
| Set_Etype (E, E); |
| Init_Size (E, Siz); |
| Set_Prim_Alignment (E); |
| Set_Integer_Bounds (E, E, Lbound, Ubound); |
| Set_Is_Frozen (E); |
| Set_Is_Public (E); |
| Set_Is_Known_Valid (E); |
| Set_Size_Known_At_Compile_Time (E); |
| end Build_Signed_Integer_Type; |
| |
| ---------------------- |
| -- Create_Operators -- |
| ---------------------- |
| |
| -- Each operator has an abbreviated signature. The formals have the names |
| -- LEFT and RIGHT. Their types are not actually used for resolution. |
| |
| procedure Create_Operators is |
| Op_Node : Entity_Id; |
| |
| -- Following list has two entries for concatenation, to include |
| -- explicitly the operation on wide strings. |
| |
| Binary_Ops : constant array (S_Binary_Ops) of Name_Id := |
| (Name_Op_Add, Name_Op_And, Name_Op_Concat, Name_Op_Concat, |
| Name_Op_Divide, Name_Op_Eq, Name_Op_Expon, Name_Op_Ge, |
| Name_Op_Gt, Name_Op_Le, Name_Op_Lt, Name_Op_Mod, |
| Name_Op_Multiply, Name_Op_Ne, Name_Op_Or, Name_Op_Rem, |
| Name_Op_Subtract, Name_Op_Xor); |
| |
| Bin_Op_Types : constant array (S_Binary_Ops) of Entity_Id := |
| (Universal_Integer, Standard_Boolean, |
| Standard_String, Standard_Wide_String, |
| Universal_Integer, Standard_Boolean, |
| Universal_Integer, Standard_Boolean, |
| Standard_Boolean, Standard_Boolean, |
| Standard_Boolean, Universal_Integer, |
| Universal_Integer, Standard_Boolean, |
| Standard_Boolean, Universal_Integer, |
| Universal_Integer, Standard_Boolean); |
| |
| Unary_Ops : constant array (S_Unary_Ops) of Name_Id := |
| (Name_Op_Abs, Name_Op_Subtract, Name_Op_Not, Name_Op_Add); |
| |
| Unary_Op_Types : constant array (S_Unary_Ops) of Entity_Id := |
| (Universal_Integer, Universal_Integer, |
| Standard_Boolean, Universal_Integer); |
| |
| -- Corresponding to Abs, Minus, Not, and Plus. |
| |
| begin |
| for J in S_Binary_Ops loop |
| Op_Node := New_Operator (Binary_Ops (J), Bin_Op_Types (J)); |
| SE (J) := Op_Node; |
| Append_Entity (Make_Formal (Any_Type, "LEFT"), Op_Node); |
| Append_Entity (Make_Formal (Any_Type, "RIGHT"), Op_Node); |
| end loop; |
| |
| for J in S_Unary_Ops loop |
| Op_Node := New_Operator (Unary_Ops (J), Unary_Op_Types (J)); |
| SE (J) := Op_Node; |
| Append_Entity (Make_Formal (Any_Type, "RIGHT"), Op_Node); |
| end loop; |
| |
| -- For concatenation, we create a separate operator for each |
| -- array type. This simplifies the resolution of the component- |
| -- component concatenation operation. In Standard, we set the types |
| -- of the formals for string and wide string concatenation. |
| |
| Set_Etype (First_Entity (Standard_Op_Concat), Standard_String); |
| Set_Etype (Last_Entity (Standard_Op_Concat), Standard_String); |
| |
| Set_Etype (First_Entity (Standard_Op_Concatw), Standard_Wide_String); |
| Set_Etype (Last_Entity (Standard_Op_Concatw), Standard_Wide_String); |
| |
| end Create_Operators; |
| |
| --------------------- |
| -- Create_Standard -- |
| --------------------- |
| |
| -- The tree for the package Standard is prefixed to all compilations. |
| -- Several entities required by semantic analysis are denoted by global |
| -- variables that are initialized to point to the corresponding |
| -- occurrences in STANDARD. The visible entities of STANDARD are |
| -- created here. The private entities defined in STANDARD are created |
| -- by Initialize_Standard in the semantics module. |
| |
| procedure Create_Standard is |
| Decl_S : constant List_Id := New_List; |
| -- List of declarations in Standard |
| |
| Decl_A : constant List_Id := New_List; |
| -- List of declarations in ASCII |
| |
| Decl : Node_Id; |
| Pspec : Node_Id; |
| Tdef_Node : Node_Id; |
| Ident_Node : Node_Id; |
| Ccode : Char_Code; |
| E_Id : Entity_Id; |
| R_Node : Node_Id; |
| B_Node : Node_Id; |
| |
| procedure Build_Exception (S : Standard_Entity_Type); |
| -- Procedure to declare given entity as an exception |
| |
| --------------------- |
| -- Build_Exception -- |
| --------------------- |
| |
| procedure Build_Exception (S : Standard_Entity_Type) is |
| begin |
| Set_Ekind (Standard_Entity (S), E_Exception); |
| Set_Etype (Standard_Entity (S), Standard_Exception_Type); |
| Set_Exception_Code (Standard_Entity (S), Uint_0); |
| Set_Is_Public (Standard_Entity (S), True); |
| |
| Decl := |
| Make_Exception_Declaration (Stloc, |
| Defining_Identifier => Standard_Entity (S)); |
| Append (Decl, Decl_S); |
| end Build_Exception; |
| |
| -- Start of processing for Create_Standard |
| |
| begin |
| -- Initialize scanner for internal scans of literals |
| |
| Scn.Initialize_Scanner (No_Unit, Internal_Source_File); |
| |
| -- First step is to create defining identifiers for each entity |
| |
| for S in Standard_Entity_Type loop |
| declare |
| S_Name : constant String := Standard_Entity_Type'Image (S); |
| -- Name of entity (note we skip S_ at the start) |
| |
| Ident_Node : Node_Id; |
| -- Defining identifier node |
| |
| begin |
| Ident_Node := New_Standard_Entity; |
| Make_Name (Ident_Node, S_Name (3 .. S_Name'Length)); |
| Standard_Entity (S) := Ident_Node; |
| end; |
| end loop; |
| |
| -- Create package declaration node for package Standard |
| |
| Standard_Package_Node := New_Node (N_Package_Declaration, Stloc); |
| |
| Pspec := New_Node (N_Package_Specification, Stloc); |
| Set_Specification (Standard_Package_Node, Pspec); |
| |
| Set_Defining_Unit_Name (Pspec, Standard_Standard); |
| Set_Visible_Declarations (Pspec, Decl_S); |
| |
| Set_Ekind (Standard_Standard, E_Package); |
| Set_Is_Pure (Standard_Standard); |
| Set_Is_Compilation_Unit (Standard_Standard); |
| |
| -- Create type declaration nodes for standard types |
| |
| for S in S_Types loop |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Standard_Entity (S)); |
| Set_Is_Frozen (Standard_Entity (S)); |
| Set_Is_Public (Standard_Entity (S)); |
| Append (Decl, Decl_S); |
| end loop; |
| |
| -- Create type definition node for type Boolean. The Size is set to |
| -- 1 as required by Ada 95 and current ARG interpretations for Ada/83. |
| |
| -- Note: Object_Size of Boolean is 8. This means that we do NOT in |
| -- general know that Boolean variables have valid values, so we do |
| -- not set the Is_Known_Valid flag. |
| |
| Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc); |
| Set_Literals (Tdef_Node, New_List); |
| Append (Standard_False, Literals (Tdef_Node)); |
| Append (Standard_True, Literals (Tdef_Node)); |
| Set_Type_Definition (Parent (Standard_Boolean), Tdef_Node); |
| |
| Set_Ekind (Standard_Boolean, E_Enumeration_Type); |
| Set_First_Literal (Standard_Boolean, Standard_False); |
| Set_Etype (Standard_Boolean, Standard_Boolean); |
| Init_Esize (Standard_Boolean, Standard_Character_Size); |
| Init_RM_Size (Standard_Boolean, 1); |
| Set_Prim_Alignment (Standard_Boolean); |
| |
| Set_Is_Unsigned_Type (Standard_Boolean); |
| Set_Size_Known_At_Compile_Time (Standard_Boolean); |
| |
| Set_Ekind (Standard_True, E_Enumeration_Literal); |
| Set_Etype (Standard_True, Standard_Boolean); |
| Set_Enumeration_Pos (Standard_True, Uint_1); |
| Set_Enumeration_Rep (Standard_True, Uint_1); |
| Set_Is_Known_Valid (Standard_True, True); |
| |
| Set_Ekind (Standard_False, E_Enumeration_Literal); |
| Set_Etype (Standard_False, Standard_Boolean); |
| Set_Enumeration_Pos (Standard_False, Uint_0); |
| Set_Enumeration_Rep (Standard_False, Uint_0); |
| Set_Is_Known_Valid (Standard_False, True); |
| |
| -- For the bounds of Boolean, we create a range node corresponding to |
| |
| -- range False .. True |
| |
| -- where the occurrences of the literals must point to the |
| -- corresponding definition. |
| |
| R_Node := New_Node (N_Range, Stloc); |
| B_Node := New_Node (N_Identifier, Stloc); |
| Set_Chars (B_Node, Chars (Standard_False)); |
| Set_Entity (B_Node, Standard_False); |
| Set_Etype (B_Node, Standard_Boolean); |
| Set_Is_Static_Expression (B_Node); |
| Set_Low_Bound (R_Node, B_Node); |
| |
| B_Node := New_Node (N_Identifier, Stloc); |
| Set_Chars (B_Node, Chars (Standard_True)); |
| Set_Entity (B_Node, Standard_True); |
| Set_Etype (B_Node, Standard_Boolean); |
| Set_Is_Static_Expression (B_Node); |
| Set_High_Bound (R_Node, B_Node); |
| |
| Set_Scalar_Range (Standard_Boolean, R_Node); |
| Set_Etype (R_Node, Standard_Boolean); |
| Set_Parent (R_Node, Standard_Boolean); |
| |
| -- Create type definition nodes for predefined integer types |
| |
| Build_Signed_Integer_Type |
| (Standard_Short_Short_Integer, Standard_Short_Short_Integer_Size); |
| |
| Build_Signed_Integer_Type |
| (Standard_Short_Integer, Standard_Short_Integer_Size); |
| |
| Build_Signed_Integer_Type |
| (Standard_Integer, Standard_Integer_Size); |
| |
| declare |
| LIS : Nat; |
| begin |
| if Debug_Flag_M then |
| LIS := 64; |
| else |
| LIS := Standard_Long_Integer_Size; |
| end if; |
| |
| Build_Signed_Integer_Type (Standard_Long_Integer, LIS); |
| end; |
| |
| Build_Signed_Integer_Type |
| (Standard_Long_Long_Integer, Standard_Long_Long_Integer_Size); |
| |
| Create_Unconstrained_Base_Type |
| (Standard_Short_Short_Integer, E_Signed_Integer_Subtype); |
| |
| Create_Unconstrained_Base_Type |
| (Standard_Short_Integer, E_Signed_Integer_Subtype); |
| |
| Create_Unconstrained_Base_Type |
| (Standard_Integer, E_Signed_Integer_Subtype); |
| |
| Create_Unconstrained_Base_Type |
| (Standard_Long_Integer, E_Signed_Integer_Subtype); |
| |
| Create_Unconstrained_Base_Type |
| (Standard_Long_Long_Integer, E_Signed_Integer_Subtype); |
| |
| -- Create type definition nodes for predefined float types |
| |
| Build_Float_Type |
| (Standard_Short_Float, |
| Standard_Short_Float_Size, |
| Standard_Short_Float_Digits); |
| |
| Build_Float_Type |
| (Standard_Float, |
| Standard_Float_Size, |
| Standard_Float_Digits); |
| |
| Build_Float_Type |
| (Standard_Long_Float, |
| Standard_Long_Float_Size, |
| Standard_Long_Float_Digits); |
| |
| Build_Float_Type |
| (Standard_Long_Long_Float, |
| Standard_Long_Long_Float_Size, |
| Standard_Long_Long_Float_Digits); |
| |
| -- Create type definition node for type Character. Note that we do not |
| -- set the Literals field, since type Character is handled with special |
| -- routine that do not need a literal list. |
| |
| Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc); |
| Set_Type_Definition (Parent (Standard_Character), Tdef_Node); |
| |
| Set_Ekind (Standard_Character, E_Enumeration_Type); |
| Set_Etype (Standard_Character, Standard_Character); |
| Init_Esize (Standard_Character, Standard_Character_Size); |
| Init_RM_Size (Standard_Character, 8); |
| Set_Prim_Alignment (Standard_Character); |
| |
| Set_Is_Unsigned_Type (Standard_Character); |
| Set_Is_Character_Type (Standard_Character); |
| Set_Is_Known_Valid (Standard_Character); |
| Set_Size_Known_At_Compile_Time (Standard_Character); |
| |
| -- Create the bounds for type Character. |
| |
| R_Node := New_Node (N_Range, Stloc); |
| |
| -- Low bound for type Character (Standard.Nul) |
| |
| B_Node := New_Node (N_Character_Literal, Stloc); |
| Set_Is_Static_Expression (B_Node); |
| Set_Chars (B_Node, No_Name); |
| Set_Char_Literal_Value (B_Node, 16#00#); |
| Set_Entity (B_Node, Empty); |
| Set_Etype (B_Node, Standard_Character); |
| Set_Low_Bound (R_Node, B_Node); |
| |
| -- High bound for type Character |
| |
| B_Node := New_Node (N_Character_Literal, Stloc); |
| Set_Is_Static_Expression (B_Node); |
| Set_Chars (B_Node, No_Name); |
| Set_Char_Literal_Value (B_Node, 16#FF#); |
| Set_Entity (B_Node, Empty); |
| Set_Etype (B_Node, Standard_Character); |
| Set_High_Bound (R_Node, B_Node); |
| |
| Set_Scalar_Range (Standard_Character, R_Node); |
| Set_Etype (R_Node, Standard_Character); |
| Set_Parent (R_Node, Standard_Character); |
| |
| -- Create type definition for type Wide_Character. Note that we do not |
| -- set the Literals field, since type Wide_Character is handled with |
| -- special routines that do not need a literal list. |
| |
| Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc); |
| Set_Type_Definition (Parent (Standard_Wide_Character), Tdef_Node); |
| |
| Set_Ekind (Standard_Wide_Character, E_Enumeration_Type); |
| Set_Etype (Standard_Wide_Character, Standard_Wide_Character); |
| Init_Size (Standard_Wide_Character, Standard_Wide_Character_Size); |
| |
| Set_Prim_Alignment (Standard_Wide_Character); |
| Set_Is_Unsigned_Type (Standard_Wide_Character); |
| Set_Is_Character_Type (Standard_Wide_Character); |
| Set_Is_Known_Valid (Standard_Wide_Character); |
| Set_Size_Known_At_Compile_Time (Standard_Wide_Character); |
| |
| -- Create the bounds for type Wide_Character. |
| |
| R_Node := New_Node (N_Range, Stloc); |
| |
| -- Low bound for type Wide_Character |
| |
| B_Node := New_Node (N_Character_Literal, Stloc); |
| Set_Is_Static_Expression (B_Node); |
| Set_Chars (B_Node, No_Name); -- ??? |
| Set_Char_Literal_Value (B_Node, 16#0000#); |
| Set_Entity (B_Node, Empty); |
| Set_Etype (B_Node, Standard_Wide_Character); |
| Set_Low_Bound (R_Node, B_Node); |
| |
| -- High bound for type Wide_Character |
| |
| B_Node := New_Node (N_Character_Literal, Stloc); |
| Set_Is_Static_Expression (B_Node); |
| Set_Chars (B_Node, No_Name); -- ??? |
| Set_Char_Literal_Value (B_Node, 16#FFFF#); |
| Set_Entity (B_Node, Empty); |
| Set_Etype (B_Node, Standard_Wide_Character); |
| Set_High_Bound (R_Node, B_Node); |
| |
| Set_Scalar_Range (Standard_Wide_Character, R_Node); |
| Set_Etype (R_Node, Standard_Wide_Character); |
| Set_Parent (R_Node, Standard_Wide_Character); |
| |
| -- Create type definition node for type String |
| |
| Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc); |
| |
| declare |
| CompDef_Node : Node_Id; |
| begin |
| CompDef_Node := New_Node (N_Component_Definition, Stloc); |
| Set_Aliased_Present (CompDef_Node, False); |
| Set_Subtype_Indication (CompDef_Node, Identifier_For (S_Character)); |
| Set_Component_Definition (Tdef_Node, CompDef_Node); |
| end; |
| |
| Set_Subtype_Marks (Tdef_Node, New_List); |
| Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node)); |
| Set_Type_Definition (Parent (Standard_String), Tdef_Node); |
| |
| Set_Ekind (Standard_String, E_String_Type); |
| Set_Etype (Standard_String, Standard_String); |
| Set_Component_Type (Standard_String, Standard_Character); |
| Set_Component_Size (Standard_String, Uint_8); |
| Init_Size_Align (Standard_String); |
| |
| -- Set index type of String |
| |
| E_Id := First |
| (Subtype_Marks (Type_Definition (Parent (Standard_String)))); |
| Set_First_Index (Standard_String, E_Id); |
| Set_Entity (E_Id, Standard_Positive); |
| Set_Etype (E_Id, Standard_Positive); |
| |
| -- Create type definition node for type Wide_String |
| |
| Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc); |
| declare |
| CompDef_Node : Node_Id; |
| begin |
| CompDef_Node := New_Node (N_Component_Definition, Stloc); |
| Set_Aliased_Present (CompDef_Node, False); |
| Set_Subtype_Indication (CompDef_Node, |
| Identifier_For (S_Wide_Character)); |
| Set_Component_Definition (Tdef_Node, CompDef_Node); |
| end; |
| Set_Subtype_Marks (Tdef_Node, New_List); |
| Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node)); |
| Set_Type_Definition (Parent (Standard_Wide_String), Tdef_Node); |
| |
| Set_Ekind (Standard_Wide_String, E_String_Type); |
| Set_Etype (Standard_Wide_String, Standard_Wide_String); |
| Set_Component_Type (Standard_Wide_String, Standard_Wide_Character); |
| Set_Component_Size (Standard_Wide_String, Uint_16); |
| Init_Size_Align (Standard_Wide_String); |
| |
| -- Set index type of Wide_String |
| |
| E_Id := First |
| (Subtype_Marks (Type_Definition (Parent (Standard_Wide_String)))); |
| Set_First_Index (Standard_Wide_String, E_Id); |
| Set_Entity (E_Id, Standard_Positive); |
| Set_Etype (E_Id, Standard_Positive); |
| |
| -- Create subtype declaration for Natural |
| |
| Decl := New_Node (N_Subtype_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Standard_Natural); |
| Set_Subtype_Indication (Decl, |
| New_Occurrence_Of (Standard_Integer, Stloc)); |
| Append (Decl, Decl_S); |
| |
| Set_Ekind (Standard_Natural, E_Signed_Integer_Subtype); |
| Set_Etype (Standard_Natural, Base_Type (Standard_Integer)); |
| Init_Esize (Standard_Natural, Standard_Integer_Size); |
| Init_RM_Size (Standard_Natural, Standard_Integer_Size - 1); |
| Set_Prim_Alignment (Standard_Natural); |
| Set_Size_Known_At_Compile_Time |
| (Standard_Natural); |
| Set_Integer_Bounds (Standard_Natural, |
| Typ => Base_Type (Standard_Integer), |
| Lb => Uint_0, |
| Hb => Intval (High_Bound (Scalar_Range (Standard_Integer)))); |
| Set_Is_Constrained (Standard_Natural); |
| Set_Is_Frozen (Standard_Natural); |
| Set_Is_Public (Standard_Natural); |
| |
| -- Create subtype declaration for Positive |
| |
| Decl := New_Node (N_Subtype_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Standard_Positive); |
| Set_Subtype_Indication (Decl, |
| New_Occurrence_Of (Standard_Integer, Stloc)); |
| Append (Decl, Decl_S); |
| |
| Set_Ekind (Standard_Positive, E_Signed_Integer_Subtype); |
| Set_Etype (Standard_Positive, Base_Type (Standard_Integer)); |
| Init_Esize (Standard_Positive, Standard_Integer_Size); |
| Init_RM_Size (Standard_Positive, Standard_Integer_Size - 1); |
| Set_Prim_Alignment (Standard_Positive); |
| |
| Set_Size_Known_At_Compile_Time (Standard_Positive); |
| |
| Set_Integer_Bounds (Standard_Positive, |
| Typ => Base_Type (Standard_Integer), |
| Lb => Uint_1, |
| Hb => Intval (High_Bound (Scalar_Range (Standard_Integer)))); |
| Set_Is_Constrained (Standard_Positive); |
| Set_Is_Frozen (Standard_Positive); |
| Set_Is_Public (Standard_Positive); |
| |
| -- Create declaration for package ASCII |
| |
| Decl := New_Node (N_Package_Declaration, Stloc); |
| Append (Decl, Decl_S); |
| |
| Pspec := New_Node (N_Package_Specification, Stloc); |
| Set_Specification (Decl, Pspec); |
| |
| Set_Defining_Unit_Name (Pspec, Standard_Entity (S_ASCII)); |
| Set_Ekind (Standard_Entity (S_ASCII), E_Package); |
| Set_Visible_Declarations (Pspec, Decl_A); |
| |
| -- Create control character definitions in package ASCII. Note that |
| -- the character literal entries created here correspond to literal |
| -- values that are impossible in the source, but can be represented |
| -- internally with no difficulties. |
| |
| Ccode := 16#00#; |
| |
| for S in S_ASCII_Names loop |
| Decl := New_Node (N_Object_Declaration, Staloc); |
| Set_Constant_Present (Decl, True); |
| |
| declare |
| A_Char : constant Entity_Id := Standard_Entity (S); |
| Expr_Decl : Node_Id; |
| |
| begin |
| Set_Sloc (A_Char, Staloc); |
| Set_Ekind (A_Char, E_Constant); |
| Set_Never_Set_In_Source (A_Char, True); |
| Set_Is_True_Constant (A_Char, True); |
| Set_Etype (A_Char, Standard_Character); |
| Set_Scope (A_Char, Standard_Entity (S_ASCII)); |
| Set_Is_Immediately_Visible (A_Char, False); |
| Set_Is_Public (A_Char, True); |
| Set_Is_Known_Valid (A_Char, True); |
| |
| Append_Entity (A_Char, Standard_Entity (S_ASCII)); |
| Set_Defining_Identifier (Decl, A_Char); |
| |
| Set_Object_Definition (Decl, Identifier_For (S_Character)); |
| Expr_Decl := New_Node (N_Character_Literal, Staloc); |
| Set_Expression (Decl, Expr_Decl); |
| |
| Set_Is_Static_Expression (Expr_Decl); |
| Set_Chars (Expr_Decl, No_Name); |
| Set_Etype (Expr_Decl, Standard_Character); |
| Set_Char_Literal_Value (Expr_Decl, Ccode); |
| end; |
| |
| Append (Decl, Decl_A); |
| |
| -- Increment character code, dealing with non-contiguities |
| |
| Ccode := Ccode + 1; |
| |
| if Ccode = 16#20# then |
| Ccode := 16#21#; |
| elsif Ccode = 16#27# then |
| Ccode := 16#3A#; |
| elsif Ccode = 16#3C# then |
| Ccode := 16#3F#; |
| elsif Ccode = 16#41# then |
| Ccode := 16#5B#; |
| end if; |
| end loop; |
| |
| -- Create semantic phase entities |
| |
| Standard_Void_Type := New_Standard_Entity; |
| Set_Ekind (Standard_Void_Type, E_Void); |
| Set_Etype (Standard_Void_Type, Standard_Void_Type); |
| Set_Scope (Standard_Void_Type, Standard_Standard); |
| Make_Name (Standard_Void_Type, "_void_type"); |
| |
| -- The type field of packages is set to void |
| |
| Set_Etype (Standard_Standard, Standard_Void_Type); |
| Set_Etype (Standard_ASCII, Standard_Void_Type); |
| |
| -- Standard_A_String is actually used in generated code, so it has a |
| -- type name that is reasonable, but does not overlap any Ada name. |
| |
| Standard_A_String := New_Standard_Entity; |
| Set_Ekind (Standard_A_String, E_Access_Type); |
| Set_Scope (Standard_A_String, Standard_Standard); |
| Set_Etype (Standard_A_String, Standard_A_String); |
| |
| if Debug_Flag_6 then |
| Init_Size (Standard_A_String, System_Address_Size); |
| else |
| Init_Size (Standard_A_String, System_Address_Size * 2); |
| end if; |
| |
| Init_Alignment (Standard_A_String); |
| |
| Set_Directly_Designated_Type |
| (Standard_A_String, Standard_String); |
| Make_Name (Standard_A_String, "access_string"); |
| |
| Standard_A_Char := New_Standard_Entity; |
| Set_Ekind (Standard_A_Char, E_Access_Type); |
| Set_Scope (Standard_A_Char, Standard_Standard); |
| Set_Etype (Standard_A_Char, Standard_A_String); |
| Init_Size (Standard_A_Char, System_Address_Size); |
| Set_Prim_Alignment (Standard_A_Char); |
| |
| Set_Directly_Designated_Type (Standard_A_Char, Standard_Character); |
| Make_Name (Standard_A_Char, "access_character"); |
| |
| -- Note on type names. The type names for the following special types |
| -- are constructed so that they will look reasonable should they ever |
| -- appear in error messages etc, although in practice the use of the |
| -- special insertion character } for types results in special handling |
| -- of these type names in any case. The blanks in these names would |
| -- trouble in Gigi, but that's OK here, since none of these types |
| -- should ever get through to Gigi! Attributes of these types are |
| -- filled out to minimize problems with cascaded errors (for example, |
| -- Any_Integer is given reasonable and consistent type and size values) |
| |
| Any_Type := New_Standard_Entity; |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Any_Type); |
| Set_Scope (Any_Type, Standard_Standard); |
| Build_Signed_Integer_Type (Any_Type, Standard_Integer_Size); |
| Make_Name (Any_Type, "any type"); |
| |
| Any_Id := New_Standard_Entity; |
| Set_Ekind (Any_Id, E_Variable); |
| Set_Scope (Any_Id, Standard_Standard); |
| Set_Etype (Any_Id, Any_Type); |
| Init_Size_Align (Any_Id); |
| Make_Name (Any_Id, "any id"); |
| |
| Any_Access := New_Standard_Entity; |
| Set_Ekind (Any_Access, E_Access_Type); |
| Set_Scope (Any_Access, Standard_Standard); |
| Set_Etype (Any_Access, Any_Access); |
| Init_Size (Any_Access, System_Address_Size); |
| Set_Prim_Alignment (Any_Access); |
| Make_Name (Any_Access, "an access type"); |
| |
| Any_Character := New_Standard_Entity; |
| Set_Ekind (Any_Character, E_Enumeration_Type); |
| Set_Scope (Any_Character, Standard_Standard); |
| Set_Etype (Any_Character, Any_Character); |
| Set_Is_Unsigned_Type (Any_Character); |
| Set_Is_Character_Type (Any_Character); |
| Init_Esize (Any_Character, Standard_Character_Size); |
| Init_RM_Size (Any_Character, 8); |
| Set_Prim_Alignment (Any_Character); |
| Set_Scalar_Range (Any_Character, Scalar_Range (Standard_Character)); |
| Make_Name (Any_Character, "a character type"); |
| |
| Any_Array := New_Standard_Entity; |
| Set_Ekind (Any_Array, E_String_Type); |
| Set_Scope (Any_Array, Standard_Standard); |
| Set_Etype (Any_Array, Any_Array); |
| Set_Component_Type (Any_Array, Any_Character); |
| Init_Size_Align (Any_Array); |
| Make_Name (Any_Array, "an array type"); |
| |
| Any_Boolean := New_Standard_Entity; |
| Set_Ekind (Any_Boolean, E_Enumeration_Type); |
| Set_Scope (Any_Boolean, Standard_Standard); |
| Set_Etype (Any_Boolean, Standard_Boolean); |
| Init_Esize (Any_Boolean, Standard_Character_Size); |
| Init_RM_Size (Any_Boolean, 1); |
| Set_Prim_Alignment (Any_Boolean); |
| Set_Is_Unsigned_Type (Any_Boolean); |
| Set_Scalar_Range (Any_Boolean, Scalar_Range (Standard_Boolean)); |
| Make_Name (Any_Boolean, "a boolean type"); |
| |
| Any_Composite := New_Standard_Entity; |
| Set_Ekind (Any_Composite, E_Array_Type); |
| Set_Scope (Any_Composite, Standard_Standard); |
| Set_Etype (Any_Composite, Any_Composite); |
| Set_Component_Size (Any_Composite, Uint_0); |
| Set_Component_Type (Any_Composite, Standard_Integer); |
| Init_Size_Align (Any_Composite); |
| Make_Name (Any_Composite, "a composite type"); |
| |
| Any_Discrete := New_Standard_Entity; |
| Set_Ekind (Any_Discrete, E_Signed_Integer_Type); |
| Set_Scope (Any_Discrete, Standard_Standard); |
| Set_Etype (Any_Discrete, Any_Discrete); |
| Init_Size (Any_Discrete, Standard_Integer_Size); |
| Set_Prim_Alignment (Any_Discrete); |
| Make_Name (Any_Discrete, "a discrete type"); |
| |
| Any_Fixed := New_Standard_Entity; |
| Set_Ekind (Any_Fixed, E_Ordinary_Fixed_Point_Type); |
| Set_Scope (Any_Fixed, Standard_Standard); |
| Set_Etype (Any_Fixed, Any_Fixed); |
| Init_Size (Any_Fixed, Standard_Integer_Size); |
| Set_Prim_Alignment (Any_Fixed); |
| Make_Name (Any_Fixed, "a fixed-point type"); |
| |
| Any_Integer := New_Standard_Entity; |
| Set_Ekind (Any_Integer, E_Signed_Integer_Type); |
| Set_Scope (Any_Integer, Standard_Standard); |
| Set_Etype (Any_Integer, Standard_Long_Long_Integer); |
| Init_Size (Any_Integer, Standard_Long_Long_Integer_Size); |
| Set_Prim_Alignment (Any_Integer); |
| |
| Set_Integer_Bounds |
| (Any_Integer, |
| Typ => Base_Type (Standard_Integer), |
| Lb => Uint_0, |
| Hb => Intval (High_Bound (Scalar_Range (Standard_Integer)))); |
| Make_Name (Any_Integer, "an integer type"); |
| |
| Any_Modular := New_Standard_Entity; |
| Set_Ekind (Any_Modular, E_Modular_Integer_Type); |
| Set_Scope (Any_Modular, Standard_Standard); |
| Set_Etype (Any_Modular, Standard_Long_Long_Integer); |
| Init_Size (Any_Modular, Standard_Long_Long_Integer_Size); |
| Set_Prim_Alignment (Any_Modular); |
| Set_Is_Unsigned_Type (Any_Modular); |
| Make_Name (Any_Modular, "a modular type"); |
| |
| Any_Numeric := New_Standard_Entity; |
| Set_Ekind (Any_Numeric, E_Signed_Integer_Type); |
| Set_Scope (Any_Numeric, Standard_Standard); |
| Set_Etype (Any_Numeric, Standard_Long_Long_Integer); |
| Init_Size (Any_Numeric, Standard_Long_Long_Integer_Size); |
| Set_Prim_Alignment (Any_Numeric); |
| Make_Name (Any_Numeric, "a numeric type"); |
| |
| Any_Real := New_Standard_Entity; |
| Set_Ekind (Any_Real, E_Floating_Point_Type); |
| Set_Scope (Any_Real, Standard_Standard); |
| Set_Etype (Any_Real, Standard_Long_Long_Float); |
| Init_Size (Any_Real, Standard_Long_Long_Float_Size); |
| Set_Prim_Alignment (Any_Real); |
| Make_Name (Any_Real, "a real type"); |
| |
| Any_Scalar := New_Standard_Entity; |
| Set_Ekind (Any_Scalar, E_Signed_Integer_Type); |
| Set_Scope (Any_Scalar, Standard_Standard); |
| Set_Etype (Any_Scalar, Any_Scalar); |
| Init_Size (Any_Scalar, Standard_Integer_Size); |
| Set_Prim_Alignment (Any_Scalar); |
| Make_Name (Any_Scalar, "a scalar type"); |
| |
| Any_String := New_Standard_Entity; |
| Set_Ekind (Any_String, E_String_Type); |
| Set_Scope (Any_String, Standard_Standard); |
| Set_Etype (Any_String, Any_String); |
| Set_Component_Type (Any_String, Any_Character); |
| Init_Size_Align (Any_String); |
| Make_Name (Any_String, "a string type"); |
| |
| declare |
| Index : Node_Id; |
| |
| begin |
| Index := |
| Make_Range (Stloc, |
| Low_Bound => Make_Integer (Uint_0), |
| High_Bound => Make_Integer (Uint_2 ** Standard_Integer_Size)); |
| Set_Etype (Index, Standard_Integer); |
| Set_First_Index (Any_String, Index); |
| end; |
| |
| Standard_Integer_8 := New_Standard_Entity; |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Standard_Integer_8); |
| Make_Name (Standard_Integer_8, "integer_8"); |
| Set_Scope (Standard_Integer_8, Standard_Standard); |
| Build_Signed_Integer_Type (Standard_Integer_8, 8); |
| |
| Standard_Integer_16 := New_Standard_Entity; |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Standard_Integer_16); |
| Make_Name (Standard_Integer_16, "integer_16"); |
| Set_Scope (Standard_Integer_16, Standard_Standard); |
| Build_Signed_Integer_Type (Standard_Integer_16, 16); |
| |
| Standard_Integer_32 := New_Standard_Entity; |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Standard_Integer_32); |
| Make_Name (Standard_Integer_32, "integer_32"); |
| Set_Scope (Standard_Integer_32, Standard_Standard); |
| Build_Signed_Integer_Type (Standard_Integer_32, 32); |
| |
| Standard_Integer_64 := New_Standard_Entity; |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Standard_Integer_64); |
| Make_Name (Standard_Integer_64, "integer_64"); |
| Set_Scope (Standard_Integer_64, Standard_Standard); |
| Build_Signed_Integer_Type (Standard_Integer_64, 64); |
| |
| Standard_Unsigned := New_Standard_Entity; |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Standard_Unsigned); |
| Make_Name (Standard_Unsigned, "unsigned"); |
| |
| Set_Ekind (Standard_Unsigned, E_Modular_Integer_Type); |
| Set_Scope (Standard_Unsigned, Standard_Standard); |
| Set_Etype (Standard_Unsigned, Standard_Unsigned); |
| Init_Size (Standard_Unsigned, Standard_Integer_Size); |
| Set_Prim_Alignment (Standard_Unsigned); |
| Set_Modulus (Standard_Unsigned, |
| Uint_2 ** Standard_Integer_Size); |
| Set_Is_Unsigned_Type (Standard_Unsigned); |
| Set_Size_Known_At_Compile_Time |
| (Standard_Unsigned); |
| |
| R_Node := New_Node (N_Range, Stloc); |
| Set_Low_Bound (R_Node, Make_Integer (Uint_0)); |
| Set_High_Bound (R_Node, Make_Integer (Modulus (Standard_Unsigned) - 1)); |
| Set_Etype (Low_Bound (R_Node), Standard_Unsigned); |
| Set_Etype (High_Bound (R_Node), Standard_Unsigned); |
| Set_Scalar_Range (Standard_Unsigned, R_Node); |
| |
| -- Note: universal integer and universal real are constructed as fully |
| -- formed signed numeric types, with parameters corresponding to the |
| -- longest runtime types (Long_Long_Integer and Long_Long_Float). This |
| -- allows Gigi to properly process references to universal types that |
| -- are not folded at compile time. |
| |
| Universal_Integer := New_Standard_Entity; |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Universal_Integer); |
| Make_Name (Universal_Integer, "universal_integer"); |
| Set_Scope (Universal_Integer, Standard_Standard); |
| Build_Signed_Integer_Type |
| (Universal_Integer, Standard_Long_Long_Integer_Size); |
| |
| Universal_Real := New_Standard_Entity; |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Universal_Real); |
| Make_Name (Universal_Real, "universal_real"); |
| Set_Scope (Universal_Real, Standard_Standard); |
| Build_Float_Type |
| (Universal_Real, |
| Standard_Long_Long_Float_Size, |
| Standard_Long_Long_Float_Digits); |
| |
| -- Note: universal fixed, unlike universal integer and universal real, |
| -- is never used at runtime, so it does not need to have bounds set. |
| |
| Universal_Fixed := New_Standard_Entity; |
| Decl := New_Node (N_Full_Type_Declaration, Stloc); |
| Set_Defining_Identifier (Decl, Universal_Fixed); |
| Make_Name (Universal_Fixed, "universal_fixed"); |
| Set_Ekind (Universal_Fixed, E_Ordinary_Fixed_Point_Type); |
| Set_Etype (Universal_Fixed, Universal_Fixed); |
| Set_Scope (Universal_Fixed, Standard_Standard); |
| Init_Size (Universal_Fixed, Standard_Long_Long_Integer_Size); |
| Set_Prim_Alignment (Universal_Fixed); |
| Set_Size_Known_At_Compile_Time |
| (Universal_Fixed); |
| |
| -- Create type declaration for Duration, using a 64-bit size. The |
| -- delta and size values depend on the mode set in system.ads. |
| |
| Build_Duration : declare |
| Dlo : Uint; |
| Dhi : Uint; |
| Delta_Val : Ureal; |
| |
| begin |
| -- In 32 bit mode, the size is 32 bits, and the delta and |
| -- small values are set to 20 milliseconds (20.0**(10.0**(-3)). |
| |
| if Duration_32_Bits_On_Target then |
| Dlo := Intval (Type_Low_Bound (Standard_Integer_32)); |
| Dhi := Intval (Type_High_Bound (Standard_Integer_32)); |
| Delta_Val := UR_From_Components (UI_From_Int (20), Uint_3, 10); |
| |
| -- In standard 64-bit mode, the size is 64-bits and the delta and |
| -- amll values are set to nanoseconds (1.0**(10.0**(-9)) |
| |
| else |
| Dlo := Intval (Type_Low_Bound (Standard_Integer_64)); |
| Dhi := Intval (Type_High_Bound (Standard_Integer_64)); |
| Delta_Val := UR_From_Components (Uint_1, Uint_9, 10); |
| end if; |
| |
| Tdef_Node := Make_Ordinary_Fixed_Point_Definition (Stloc, |
| Delta_Expression => Make_Real_Literal (Stloc, Delta_Val), |
| Real_Range_Specification => |
| Make_Real_Range_Specification (Stloc, |
| Low_Bound => Make_Real_Literal (Stloc, |
| Realval => Dlo * Delta_Val), |
| High_Bound => Make_Real_Literal (Stloc, |
| Realval => Dhi * Delta_Val))); |
| |
| Set_Type_Definition (Parent (Standard_Duration), Tdef_Node); |
| |
| Set_Ekind (Standard_Duration, E_Ordinary_Fixed_Point_Type); |
| Set_Etype (Standard_Duration, Standard_Duration); |
| |
| if Duration_32_Bits_On_Target then |
| Init_Size (Standard_Duration, 32); |
| else |
| Init_Size (Standard_Duration, 64); |
| end if; |
| |
| Set_Prim_Alignment (Standard_Duration); |
| Set_Delta_Value (Standard_Duration, Delta_Val); |
| Set_Small_Value (Standard_Duration, Delta_Val); |
| Set_Scalar_Range (Standard_Duration, |
| Real_Range_Specification |
| (Type_Definition (Parent (Standard_Duration)))); |
| |
| -- Normally it does not matter that nodes in package Standard are |
| -- not marked as analyzed. The Scalar_Range of the fixed-point |
| -- type Standard_Duration is an exception, because of the special |
| -- test made in Freeze.Freeze_Fixed_Point_Type. |
| |
| Set_Analyzed (Scalar_Range (Standard_Duration)); |
| |
| Set_Etype (Type_High_Bound (Standard_Duration), Standard_Duration); |
| Set_Etype (Type_Low_Bound (Standard_Duration), Standard_Duration); |
| |
| Set_Is_Static_Expression (Type_High_Bound (Standard_Duration)); |
| Set_Is_Static_Expression (Type_Low_Bound (Standard_Duration)); |
| |
| Set_Corresponding_Integer_Value |
| (Type_High_Bound (Standard_Duration), Dhi); |
| |
| Set_Corresponding_Integer_Value |
| (Type_Low_Bound (Standard_Duration), Dlo); |
| |
| Set_Size_Known_At_Compile_Time (Standard_Duration); |
| end Build_Duration; |
| |
| -- Build standard exception type. Note that the type name here is |
| -- actually used in the generated code, so it must be set correctly |
| |
| Standard_Exception_Type := New_Standard_Entity; |
| Set_Ekind (Standard_Exception_Type, E_Record_Type); |
| Set_Etype (Standard_Exception_Type, Standard_Exception_Type); |
| Set_Scope (Standard_Exception_Type, Standard_Standard); |
| Set_Stored_Constraint |
| (Standard_Exception_Type, No_Elist); |
| Init_Size_Align (Standard_Exception_Type); |
| Set_Size_Known_At_Compile_Time |
| (Standard_Exception_Type, True); |
| Make_Name (Standard_Exception_Type, "exception"); |
| |
| Make_Component (Standard_Exception_Type, Standard_Boolean, |
| "Not_Handled_By_Others"); |
| Make_Component (Standard_Exception_Type, Standard_Character, "Lang"); |
| Make_Component (Standard_Exception_Type, Standard_Natural, |
| "Name_Length"); |
| Make_Component (Standard_Exception_Type, Standard_A_Char, |
| "Full_Name"); |
| Make_Component (Standard_Exception_Type, Standard_A_Char, |
| "HTable_Ptr"); |
| Make_Component (Standard_Exception_Type, Standard_Integer, |
| "Import_Code"); |
| Make_Component (Standard_Exception_Type, Standard_A_Char, |
| "Raise_Hook"); |
| -- Build tree for record declaration, for use by the back-end. |
| |
| declare |
| Comp_List : List_Id; |
| Comp : Entity_Id; |
| |
| begin |
| Comp := First_Entity (Standard_Exception_Type); |
| Comp_List := New_List; |
| |
| while Present (Comp) loop |
| Append ( |
| Make_Component_Declaration (Stloc, |
| Defining_Identifier => Comp, |
| Component_Definition => |
| Make_Component_Definition (Stloc, |
| Aliased_Present => False, |
| Subtype_Indication => New_Occurrence_Of (Etype (Comp), |
| Stloc))), |
| Comp_List); |
| |
| Next_Entity (Comp); |
| end loop; |
| |
| Decl := Make_Full_Type_Declaration (Stloc, |
| Defining_Identifier => Standard_Exception_Type, |
| Type_Definition => |
| Make_Record_Definition (Stloc, |
| End_Label => Empty, |
| Component_List => |
| Make_Component_List (Stloc, |
| Component_Items => Comp_List))); |
| end; |
| |
| Append (Decl, Decl_S); |
| |
| Layout_Type (Standard_Exception_Type); |
| |
| -- Create declarations of standard exceptions |
| |
| Build_Exception (S_Constraint_Error); |
| Build_Exception (S_Program_Error); |
| Build_Exception (S_Storage_Error); |
| Build_Exception (S_Tasking_Error); |
| |
| -- Numeric_Error is a normal exception in Ada 83, but in Ada 95 |
| -- it is a renaming of Constraint_Error |
| |
| if Ada_83 then |
| Build_Exception (S_Numeric_Error); |
| |
| else |
| Decl := New_Node (N_Exception_Renaming_Declaration, Stloc); |
| E_Id := Standard_Entity (S_Numeric_Error); |
| |
| Set_Ekind (E_Id, E_Exception); |
| Set_Exception_Code (E_Id, Uint_0); |
| Set_Etype (E_Id, Standard_Exception_Type); |
| Set_Is_Public (E_Id); |
| Set_Renamed_Entity (E_Id, Standard_Entity (S_Constraint_Error)); |
| |
| Set_Defining_Identifier (Decl, E_Id); |
| Append (Decl, Decl_S); |
| |
| Ident_Node := New_Node (N_Identifier, Stloc); |
| Set_Chars (Ident_Node, Chars (Standard_Entity (S_Constraint_Error))); |
| Set_Entity (Ident_Node, Standard_Entity (S_Constraint_Error)); |
| Set_Name (Decl, Ident_Node); |
| end if; |
| |
| -- Abort_Signal is an entity that does not get made visible |
| |
| Abort_Signal := New_Standard_Entity; |
| Set_Chars (Abort_Signal, Name_uAbort_Signal); |
| Set_Ekind (Abort_Signal, E_Exception); |
| Set_Exception_Code (Abort_Signal, Uint_0); |
| Set_Etype (Abort_Signal, Standard_Exception_Type); |
| Set_Scope (Abort_Signal, Standard_Standard); |
| Set_Is_Public (Abort_Signal, True); |
| Decl := |
| Make_Exception_Declaration (Stloc, |
| Defining_Identifier => Abort_Signal); |
| |
| -- Create defining identifiers for shift operator entities. Note |
| -- that these entities are used only for marking shift operators |
| -- generated internally, and hence need no structure, just a name |
| -- and a unique identity. |
| |
| Standard_Op_Rotate_Left := New_Standard_Entity; |
| Set_Chars (Standard_Op_Rotate_Left, Name_Rotate_Left); |
| Set_Ekind (Standard_Op_Rotate_Left, E_Operator); |
| |
| Standard_Op_Rotate_Right := New_Standard_Entity; |
| Set_Chars (Standard_Op_Rotate_Right, Name_Rotate_Right); |
| Set_Ekind (Standard_Op_Rotate_Right, E_Operator); |
| |
| Standard_Op_Shift_Left := New_Standard_Entity; |
| Set_Chars (Standard_Op_Shift_Left, Name_Shift_Left); |
| Set_Ekind (Standard_Op_Shift_Left, E_Operator); |
| |
| Standard_Op_Shift_Right := New_Standard_Entity; |
| Set_Chars (Standard_Op_Shift_Right, Name_Shift_Right); |
| Set_Ekind (Standard_Op_Shift_Right, E_Operator); |
| |
| Standard_Op_Shift_Right_Arithmetic := New_Standard_Entity; |
| Set_Chars (Standard_Op_Shift_Right_Arithmetic, |
| Name_Shift_Right_Arithmetic); |
| Set_Ekind (Standard_Op_Shift_Right_Arithmetic, |
| E_Operator); |
| |
| -- Create standard operator declarations |
| |
| Create_Operators; |
| |
| -- Initialize visibility table with entities in Standard |
| |
| for E in Standard_Entity_Type loop |
| if Ekind (Standard_Entity (E)) /= E_Operator then |
| Set_Name_Entity_Id |
| (Chars (Standard_Entity (E)), Standard_Entity (E)); |
| Set_Homonym (Standard_Entity (E), Empty); |
| end if; |
| |
| if E not in S_ASCII_Names then |
| Set_Scope (Standard_Entity (E), Standard_Standard); |
| Set_Is_Immediately_Visible (Standard_Entity (E)); |
| end if; |
| end loop; |
| |
| -- The predefined package Standard itself does not have a scope; |
| -- it is the only entity in the system not to have one, and this |
| -- is what identifies the package to Gigi. |
| |
| Set_Scope (Standard_Standard, Empty); |
| |
| -- Set global variables indicating last Id values and version |
| |
| Last_Standard_Node_Id := Last_Node_Id; |
| Last_Standard_List_Id := Last_List_Id; |
| |
| -- The Error node has an Etype of Any_Type to help error recovery |
| |
| Set_Etype (Error, Any_Type); |
| |
| -- Print representation of standard if switch set |
| |
| if Opt.Print_Standard then |
| Print_Standard; |
| end if; |
| end Create_Standard; |
| |
| ------------------------------------ |
| -- Create_Unconstrained_Base_Type -- |
| ------------------------------------ |
| |
| procedure Create_Unconstrained_Base_Type |
| (E : Entity_Id; |
| K : Entity_Kind) |
| is |
| New_Ent : constant Entity_Id := New_Copy (E); |
| |
| begin |
| Set_Ekind (E, K); |
| Set_Is_Constrained (E, True); |
| Set_Is_First_Subtype (E, True); |
| Set_Etype (E, New_Ent); |
| |
| Append_Entity (New_Ent, Standard_Standard); |
| Set_Is_Constrained (New_Ent, False); |
| Set_Etype (New_Ent, New_Ent); |
| Set_Is_Known_Valid (New_Ent, True); |
| |
| if K = E_Signed_Integer_Subtype then |
| Set_Etype (Low_Bound (Scalar_Range (E)), New_Ent); |
| Set_Etype (High_Bound (Scalar_Range (E)), New_Ent); |
| end if; |
| |
| end Create_Unconstrained_Base_Type; |
| |
| -------------------- |
| -- Identifier_For -- |
| -------------------- |
| |
| function Identifier_For (S : Standard_Entity_Type) return Node_Id is |
| Ident_Node : Node_Id; |
| |
| begin |
| Ident_Node := New_Node (N_Identifier, Stloc); |
| Set_Chars (Ident_Node, Chars (Standard_Entity (S))); |
| return Ident_Node; |
| end Identifier_For; |
| |
| -------------------- |
| -- Make_Component -- |
| -------------------- |
| |
| procedure Make_Component |
| (Rec : Entity_Id; |
| Typ : Entity_Id; |
| Nam : String) |
| is |
| Id : constant Entity_Id := New_Standard_Entity; |
| |
| begin |
| Set_Ekind (Id, E_Component); |
| Set_Etype (Id, Typ); |
| Set_Scope (Id, Rec); |
| Init_Component_Location (Id); |
| |
| Set_Original_Record_Component (Id, Id); |
| Make_Name (Id, Nam); |
| Append_Entity (Id, Rec); |
| end Make_Component; |
| |
| ----------------- |
| -- Make_Formal -- |
| ----------------- |
| |
| function Make_Formal |
| (Typ : Entity_Id; |
| Formal_Name : String) return Entity_Id |
| is |
| Formal : Entity_Id; |
| |
| begin |
| Formal := New_Standard_Entity; |
| |
| Set_Ekind (Formal, E_In_Parameter); |
| Set_Mechanism (Formal, Default_Mechanism); |
| Set_Scope (Formal, Standard_Standard); |
| Set_Etype (Formal, Typ); |
| Make_Name (Formal, Formal_Name); |
| |
| return Formal; |
| end Make_Formal; |
| |
| ------------------ |
| -- Make_Integer -- |
| ------------------ |
| |
| function Make_Integer (V : Uint) return Node_Id is |
| N : constant Node_Id := Make_Integer_Literal (Stloc, V); |
| begin |
| Set_Is_Static_Expression (N); |
| return N; |
| end Make_Integer; |
| |
| --------------- |
| -- Make_Name -- |
| --------------- |
| |
| procedure Make_Name (Id : Entity_Id; Nam : String) is |
| begin |
| for J in 1 .. Nam'Length loop |
| Name_Buffer (J) := Fold_Lower (Nam (Nam'First + (J - 1))); |
| end loop; |
| |
| Name_Len := Nam'Length; |
| Set_Chars (Id, Name_Find); |
| end Make_Name; |
| |
| ------------------ |
| -- New_Operator -- |
| ------------------ |
| |
| function New_Operator (Op : Name_Id; Typ : Entity_Id) return Entity_Id is |
| Ident_Node : Entity_Id; |
| |
| begin |
| Ident_Node := Make_Defining_Identifier (Stloc, Op); |
| |
| Set_Is_Pure (Ident_Node, True); |
| Set_Ekind (Ident_Node, E_Operator); |
| Set_Etype (Ident_Node, Typ); |
| Set_Scope (Ident_Node, Standard_Standard); |
| Set_Homonym (Ident_Node, Get_Name_Entity_Id (Op)); |
| Set_Convention (Ident_Node, Convention_Intrinsic); |
| |
| Set_Is_Immediately_Visible (Ident_Node, True); |
| Set_Is_Intrinsic_Subprogram (Ident_Node, True); |
| |
| Set_Name_Entity_Id (Op, Ident_Node); |
| Append_Entity (Ident_Node, Standard_Standard); |
| return Ident_Node; |
| end New_Operator; |
| |
| ------------------------- |
| -- New_Standard_Entity -- |
| ------------------------- |
| |
| function New_Standard_Entity |
| (New_Node_Kind : Node_Kind := N_Defining_Identifier) return Entity_Id |
| is |
| E : constant Entity_Id := New_Entity (New_Node_Kind, Stloc); |
| |
| begin |
| -- All standard entities are Pure and Public |
| |
| Set_Is_Pure (E); |
| Set_Is_Public (E); |
| |
| -- All standard entity names are analyzed manually, and are thus |
| -- frozen as soon as they are created. |
| |
| Set_Is_Frozen (E); |
| |
| -- Set debug information required for all standard types |
| |
| Set_Needs_Debug_Info (E); |
| |
| -- All standard entities are built with fully qualified names, so |
| -- set the flag to prevent an abortive attempt at requalification! |
| |
| Set_Has_Qualified_Name (E); |
| |
| -- Return newly created entity to be completed by caller |
| |
| return E; |
| end New_Standard_Entity; |
| |
| -------------------- |
| -- Print_Standard -- |
| -------------------- |
| |
| procedure Print_Standard is |
| |
| procedure P (Item : String) renames Output.Write_Line; |
| -- Short-hand, since we do a lot of line writes here! |
| |
| procedure P_Int_Range (Size : Pos); |
| -- Prints the range of an integer based on its Size |
| |
| procedure P_Float_Range (Id : Entity_Id); |
| -- Prints the bounds range for the given float type entity |
| |
| ------------------- |
| -- P_Float_Range -- |
| ------------------- |
| |
| procedure P_Float_Range (Id : Entity_Id) is |
| Digs : constant Nat := UI_To_Int (Digits_Value (Id)); |
| |
| begin |
| Write_Str (" range "); |
| |
| if Vax_Float (Id) then |
| if Digs = VAXFF_Digits then |
| Write_Str (VAXFF_First'Universal_Literal_String); |
| Write_Str (" .. "); |
| Write_Str (VAXFF_Last'Universal_Literal_String); |
| |
| elsif Digs = VAXDF_Digits then |
| Write_Str (VAXDF_First'Universal_Literal_String); |
| Write_Str (" .. "); |
| Write_Str (VAXDF_Last'Universal_Literal_String); |
| |
| else |
| pragma Assert (Digs = VAXGF_Digits); |
| |
| Write_Str (VAXGF_First'Universal_Literal_String); |
| Write_Str (" .. "); |
| Write_Str (VAXGF_Last'Universal_Literal_String); |
| end if; |
| |
| elsif Is_AAMP_Float (Id) then |
| if Digs = AAMPS_Digits then |
| Write_Str (AAMPS_First'Universal_Literal_String); |
| Write_Str (" .. "); |
| Write_Str (AAMPS_Last'Universal_Literal_String); |
| |
| else |
| pragma Assert (Digs = AAMPL_Digits); |
| Write_Str (AAMPL_First'Universal_Literal_String); |
| Write_Str (" .. "); |
| Write_Str (AAMPL_Last'Universal_Literal_String); |
| end if; |
| |
| elsif Digs = IEEES_Digits then |
| Write_Str (IEEES_First'Universal_Literal_String); |
| Write_Str (" .. "); |
| Write_Str (IEEES_Last'Universal_Literal_String); |
| |
| |
| elsif Digs = IEEEL_Digits then |
| Write_Str (IEEEL_First'Universal_Literal_String); |
| Write_Str (" .. "); |
| Write_Str (IEEEL_Last'Universal_Literal_String); |
| |
| else |
| pragma Assert (Digs = IEEEX_Digits); |
| |
| Write_Str (IEEEX_First'Universal_Literal_String); |
| Write_Str (" .. "); |
| Write_Str (IEEEX_Last'Universal_Literal_String); |
| end if; |
| |
| Write_Str (";"); |
| Write_Eol; |
| end P_Float_Range; |
| |
| ----------------- |
| -- P_Int_Range -- |
| ----------------- |
| |
| procedure P_Int_Range (Size : Pos) is |
| begin |
| Write_Str (" is range -(2 **"); |
| Write_Int (Size - 1); |
| Write_Str (")"); |
| Write_Str (" .. +(2 **"); |
| Write_Int (Size - 1); |
| Write_Str (" - 1);"); |
| Write_Eol; |
| end P_Int_Range; |
| |
| -- Start of processing for Print_Standard |
| |
| begin |
| P ("-- Representation of package Standard"); |
| Write_Eol; |
| P ("-- This is not accurate Ada, since new base types cannot be "); |
| P ("-- created, but the listing shows the target dependent"); |
| P ("-- characteristics of the Standard types for this compiler"); |
| Write_Eol; |
| |
| P ("package Standard is"); |
| P ("pragma Pure(Standard);"); |
| Write_Eol; |
| |
| P (" type Boolean is (False, True);"); |
| P (" for Boolean'Size use 1;"); |
| P (" for Boolean use (False => 0, True => 1);"); |
| Write_Eol; |
| |
| -- Integer types |
| |
| Write_Str (" type Integer"); |
| P_Int_Range (Standard_Integer_Size); |
| Write_Str (" for Integer'Size use "); |
| Write_Int (Standard_Integer_Size); |
| P (";"); |
| Write_Eol; |
| |
| P (" subtype Natural is Integer range 0 .. Integer'Last;"); |
| P (" subtype Positive is Integer range 1 .. Integer'Last;"); |
| Write_Eol; |
| |
| Write_Str (" type Short_Short_Integer"); |
| P_Int_Range (Standard_Short_Short_Integer_Size); |
| Write_Str (" for Short_Short_Integer'Size use "); |
| Write_Int (Standard_Short_Short_Integer_Size); |
| P (";"); |
| Write_Eol; |
| |
| Write_Str (" type Short_Integer"); |
| P_Int_Range (Standard_Short_Integer_Size); |
| Write_Str (" for Short_Integer'Size use "); |
| Write_Int (Standard_Short_Integer_Size); |
| P (";"); |
| Write_Eol; |
| |
| Write_Str (" type Long_Integer"); |
| P_Int_Range (Standard_Long_Integer_Size); |
| Write_Str (" for Long_Integer'Size use "); |
| Write_Int (Standard_Long_Integer_Size); |
| P (";"); |
| Write_Eol; |
| |
| Write_Str (" type Long_Long_Integer"); |
| P_Int_Range (Standard_Long_Long_Integer_Size); |
| Write_Str (" for Long_Long_Integer'Size use "); |
| Write_Int (Standard_Long_Long_Integer_Size); |
| P (";"); |
| Write_Eol; |
| |
| -- Floating point types |
| |
| Write_Str (" type Short_Float is digits "); |
| Write_Int (Standard_Short_Float_Digits); |
| Write_Eol; |
| P_Float_Range (Standard_Short_Float); |
| Write_Str (" for Short_Float'Size use "); |
| Write_Int (Standard_Short_Float_Size); |
| P (";"); |
| Write_Eol; |
| |
| Write_Str (" type Float is digits "); |
| Write_Int (Standard_Float_Digits); |
| Write_Eol; |
| P_Float_Range (Standard_Float); |
| Write_Str (" for Float'Size use "); |
| Write_Int (Standard_Float_Size); |
| P (";"); |
| Write_Eol; |
| |
| Write_Str (" type Long_Float is digits "); |
| Write_Int (Standard_Long_Float_Digits); |
| Write_Eol; |
| P_Float_Range (Standard_Long_Float); |
| Write_Str (" for Long_Float'Size use "); |
| Write_Int (Standard_Long_Float_Size); |
| P (";"); |
| Write_Eol; |
| |
| Write_Str (" type Long_Long_Float is digits "); |
| Write_Int (Standard_Long_Long_Float_Digits); |
| Write_Eol; |
| P_Float_Range (Standard_Long_Long_Float); |
| Write_Str (" for Long_Long_Float'Size use "); |
| Write_Int (Standard_Long_Long_Float_Size); |
| P (";"); |
| Write_Eol; |
| |
| P (" type Character is (...)"); |
| Write_Str (" for Character'Size use "); |
| Write_Int (Standard_Character_Size); |
| P (";"); |
| P (" -- See RM A.1(35) for details of this type"); |
| Write_Eol; |
| |
| P (" type Wide_Character is (...)"); |
| Write_Str (" for Wide_Character'Size use "); |
| Write_Int (Standard_Wide_Character_Size); |
| P (";"); |
| P (" -- See RM A.1(36) for details of this type"); |
| Write_Eol; |
| |
| P (" type String is array (Positive range <>) of Character;"); |
| P (" pragma Pack (String);"); |
| Write_Eol; |
| |
| P (" type Wide_String is array (Positive range <>)" & |
| " of Wide_Character;"); |
| P (" pragma Pack (Wide_String);"); |
| Write_Eol; |
| |
| -- Here it's OK to use the Duration type of the host compiler since |
| -- the implementation of Duration in GNAT is target independent. |
| |
| if Duration_32_Bits_On_Target then |
| P (" type Duration is delta 0.020"); |
| P (" range -((2 ** 31 - 1) * 0.020) .."); |
| P (" +((2 ** 31 - 1) * 0.020);"); |
| P (" for Duration'Small use 0.020;"); |
| else |
| P (" type Duration is delta 0.000000001"); |
| P (" range -((2 ** 63 - 1) * 0.000000001) .."); |
| P (" +((2 ** 63 - 1) * 0.000000001);"); |
| P (" for Duration'Small use 0.000000001;"); |
| end if; |
| |
| Write_Eol; |
| |
| P (" Constraint_Error : exception;"); |
| P (" Program_Error : exception;"); |
| P (" Storage_Error : exception;"); |
| P (" Tasking_Error : exception;"); |
| P (" Numeric_Error : exception renames Constraint_Error;"); |
| Write_Eol; |
| |
| P ("end Standard;"); |
| end Print_Standard; |
| |
| ---------------------- |
| -- Set_Float_Bounds -- |
| ---------------------- |
| |
| procedure Set_Float_Bounds (Id : Entity_Id) is |
| L : Node_Id; |
| -- Low bound of literal value |
| |
| H : Node_Id; |
| -- High bound of literal value |
| |
| R : Node_Id; |
| -- Range specification |
| |
| Digs : constant Nat := UI_To_Int (Digits_Value (Id)); |
| -- Digits value, used to select bounds |
| |
| begin |
| -- Note: for the call from Cstand to initially create the types in |
| -- Standard, Vax_Float will always be False. Circuitry in Sem_Vfpt |
| -- will adjust these types appropriately in the Vax_Float case if |
| -- a pragma Float_Representation (VAX_Float) is used. |
| |
| if Vax_Float (Id) then |
| if Digs = VAXFF_Digits then |
| L := Real_Convert |
| (VAXFF_First'Universal_Literal_String); |
| H := Real_Convert |
| (VAXFF_Last'Universal_Literal_String); |
| |
| elsif Digs = VAXDF_Digits then |
| L := Real_Convert |
| (VAXDF_First'Universal_Literal_String); |
| H := Real_Convert |
| (VAXDF_Last'Universal_Literal_String); |
| |
| else |
| pragma Assert (Digs = VAXGF_Digits); |
| |
| L := Real_Convert |
| (VAXGF_First'Universal_Literal_String); |
| H := Real_Convert |
| (VAXGF_Last'Universal_Literal_String); |
| end if; |
| |
| elsif Is_AAMP_Float (Id) then |
| if Digs = AAMPS_Digits then |
| L := Real_Convert |
| (AAMPS_First'Universal_Literal_String); |
| H := Real_Convert |
| (AAMPS_Last'Universal_Literal_String); |
| |
| else |
| pragma Assert (Digs = AAMPL_Digits); |
| L := Real_Convert |
| (AAMPL_First'Universal_Literal_String); |
| H := Real_Convert |
| (AAMPL_Last'Universal_Literal_String); |
| end if; |
| |
| elsif Digs = IEEES_Digits then |
| L := Real_Convert |
| (IEEES_First'Universal_Literal_String); |
| H := Real_Convert |
| (IEEES_Last'Universal_Literal_String); |
| |
| elsif Digs = IEEEL_Digits then |
| L := Real_Convert |
| (IEEEL_First'Universal_Literal_String); |
| H := Real_Convert |
| (IEEEL_Last'Universal_Literal_String); |
| |
| else |
| pragma Assert (Digs = IEEEX_Digits); |
| |
| L := Real_Convert |
| (IEEEX_First'Universal_Literal_String); |
| H := Real_Convert |
| (IEEEX_Last'Universal_Literal_String); |
| end if; |
| |
| Set_Etype (L, Id); |
| Set_Is_Static_Expression (L); |
| |
| Set_Etype (H, Id); |
| Set_Is_Static_Expression (H); |
| |
| R := New_Node (N_Range, Stloc); |
| Set_Low_Bound (R, L); |
| Set_High_Bound (R, H); |
| Set_Includes_Infinities (R, True); |
| Set_Scalar_Range (Id, R); |
| Set_Etype (R, Id); |
| Set_Parent (R, Id); |
| end Set_Float_Bounds; |
| |
| ------------------------ |
| -- Set_Integer_Bounds -- |
| ------------------------ |
| |
| procedure Set_Integer_Bounds |
| (Id : Entity_Id; |
| Typ : Entity_Id; |
| Lb : Uint; |
| Hb : Uint) |
| is |
| L : Node_Id; -- Low bound of literal value |
| H : Node_Id; -- High bound of literal value |
| R : Node_Id; -- Range specification |
| |
| begin |
| L := Make_Integer (Lb); |
| H := Make_Integer (Hb); |
| |
| Set_Etype (L, Typ); |
| Set_Etype (H, Typ); |
| |
| R := New_Node (N_Range, Stloc); |
| Set_Low_Bound (R, L); |
| Set_High_Bound (R, H); |
| Set_Scalar_Range (Id, R); |
| Set_Etype (R, Typ); |
| Set_Parent (R, Id); |
| Set_Is_Unsigned_Type (Id, Lb >= 0); |
| end Set_Integer_Bounds; |
| |
| end CStand; |
