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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- C S T A N D --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 1992-2005, 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, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, 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_Elem_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_Elem_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;
+
+ -- The following tables define the binary and unary operators and their
+ -- corresponding result type.
+
+ Binary_Ops : constant array (S_Binary_Ops) of Name_Id :=
+
+ -- There is one entry here for each binary operator, except for the
+ -- case of concatenation, where there are three entries, one for a
+ -- String result, one for Wide_String, and one for Wide_Wide_String.
+
+ (Name_Op_Add,
+ Name_Op_And,
+ Name_Op_Concat,
+ 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 :=
+
+ -- This table has the corresponding result types. The entries are
+ -- ordered so they correspond to the Binary_Ops array above.
+
+ (Universal_Integer, -- Add
+ Standard_Boolean, -- And
+ Standard_String, -- Concat (String)
+ Standard_Wide_String, -- Concat (Wide_String)
+ Standard_Wide_Wide_String, -- Concat (Wide_Wide_String)
+ Universal_Integer, -- Divide
+ Standard_Boolean, -- Eq
+ Universal_Integer, -- Expon
+ Standard_Boolean, -- Ge
+ Standard_Boolean, -- Gt
+ Standard_Boolean, -- Le
+ Standard_Boolean, -- Lt
+ Universal_Integer, -- Mod
+ Universal_Integer, -- Multiply
+ Standard_Boolean, -- Ne
+ Standard_Boolean, -- Or
+ Universal_Integer, -- Rem
+ Universal_Integer, -- Subtract
+ Standard_Boolean); -- Xor
+
+ Unary_Ops : constant array (S_Unary_Ops) of Name_Id :=
+
+ -- There is one entry here for each unary operator
+
+ (Name_Op_Abs,
+ Name_Op_Subtract,
+ Name_Op_Not,
+ Name_Op_Add);
+
+ Unary_Op_Types : constant array (S_Unary_Ops) of Entity_Id :=
+
+ -- This table has the corresponding result types. The entries are
+ -- ordered so they correspond to the Unary_Ops array above.
+
+ (Universal_Integer, -- Abs
+ Universal_Integer, -- Subtract
+ Standard_Boolean, -- Not
+ Universal_Integer); -- Add
+
+ 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, wide [wide]_string, concatenations.
+
+ 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);
+
+ Set_Etype (First_Entity (Standard_Op_Concatww),
+ Standard_Wide_Wide_String);
+
+ Set_Etype (Last_Entity (Standard_Op_Concatww),
+ Standard_Wide_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_Elem_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);
+
+ -- Record entity identifiers for boolean literals in the
+ -- Boolean_Literals array, for easy reference during expansion.
+
+ Boolean_Literals := (False => Standard_False, True => Standard_True);
+
+ -- 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_Elem_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, Uint_0);
+ 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, UI_From_Int (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_Elem_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, Uint_0);
+ 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, UI_From_Int (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 for type Wide_Wide_Character. Note that we
+ -- do not set the Literals field, since type Wide_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_Wide_Character), Tdef_Node);
+
+ Set_Ekind (Standard_Wide_Wide_Character, E_Enumeration_Type);
+ Set_Etype (Standard_Wide_Wide_Character,
+ Standard_Wide_Wide_Character);
+ Init_Size (Standard_Wide_Wide_Character,
+ Standard_Wide_Wide_Character_Size);
+
+ Set_Elem_Alignment (Standard_Wide_Wide_Character);
+ Set_Is_Unsigned_Type (Standard_Wide_Wide_Character);
+ Set_Is_Character_Type (Standard_Wide_Wide_Character);
+ Set_Is_Known_Valid (Standard_Wide_Wide_Character);
+ Set_Size_Known_At_Compile_Time (Standard_Wide_Wide_Character);
+ Set_Is_Ada_2005 (Standard_Wide_Wide_Character);
+
+ -- Create the bounds for type Wide_Wide_Character
+
+ R_Node := New_Node (N_Range, Stloc);
+
+ -- Low bound for type Wide_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, Uint_0);
+ Set_Entity (B_Node, Empty);
+ Set_Etype (B_Node, Standard_Wide_Wide_Character);
+ Set_Low_Bound (R_Node, B_Node);
+
+ -- High bound for type Wide_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, UI_From_Int (16#7FFF_FFFF#));
+ Set_Entity (B_Node, Empty);
+ Set_Etype (B_Node, Standard_Wide_Wide_Character);
+ Set_High_Bound (R_Node, B_Node);
+
+ Set_Scalar_Range (Standard_Wide_Wide_Character, R_Node);
+ Set_Etype (R_Node, Standard_Wide_Wide_Character);
+ Set_Parent (R_Node, Standard_Wide_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_Access_Definition (CompDef_Node, Empty);
+ 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_Alignment (Standard_String, Uint_1);
+
+ -- 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_Access_Definition (CompDef_Node, Empty);
+ 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 type definition node for type Wide_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_Access_Definition (CompDef_Node, Empty);
+ Set_Subtype_Indication (CompDef_Node,
+ Identifier_For (S_Wide_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_Wide_String), Tdef_Node);
+
+ Set_Ekind (Standard_Wide_Wide_String, E_String_Type);
+ Set_Etype (Standard_Wide_Wide_String,
+ Standard_Wide_Wide_String);
+ Set_Component_Type (Standard_Wide_Wide_String,
+ Standard_Wide_Wide_Character);
+ Set_Component_Size (Standard_Wide_Wide_String, Uint_32);
+ Init_Size_Align (Standard_Wide_Wide_String);
+ Set_Is_Ada_2005 (Standard_Wide_Wide_String);
+
+ -- Set index type of Wide_Wide_String
+
+ E_Id := First
+ (Subtype_Marks (Type_Definition (Parent (Standard_Wide_Wide_String))));
+ Set_First_Index (Standard_Wide_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_Elem_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_Elem_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, UI_From_Int (Int (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_Elem_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_Elem_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_Elem_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_Elem_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_Elem_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_Elem_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_Elem_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_Elem_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_Elem_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_Elem_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_Elem_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_Elem_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_Elem_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
+ -- small 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_Elem_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
+
+ -- ??? Also note that the Import_Code component is now declared
+ -- as a System.Standard_Library.Exception_Code to enforce run-time
+ -- library implementation consistency. It's too early here to resort
+ -- to rtsfind to get the proper node for that type, so we use the
+ -- closest possible available type node at hand instead. We should
+ -- probably be fixing this up at some point.
+
+ 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_Unsigned, "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. Is this test too early???
+
+ if Ada_Version = 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 Wide_Wide_Character is (...)");
+ Write_Str (" for Wide_Character'Size use ");
+ Write_Int (Standard_Wide_Wide_Character_Size);
+ P (";");
+ P (" -- See RM A.1(36) for details of this type");
+
+ 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;
+
+ P (" type Wide_Wide_String is array (Positive range <>)" &
+ " of Wide_Wide_Character;");
+ P (" pragma Pack (Wide_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;