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-- std.standard package declarations.
-- Copyright (C) 2002, 2003, 2004, 2005 Tristan Gingold
--
-- GHDL is free software; you can redistribute it and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 2, or (at your option) any later
-- version.
--
-- GHDL is distributed in the hope that it will be useful, but WITHOUT 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
-- along with GCC; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with Iirs; use Iirs;
package Std_Package is
-- This is a special node, not really declared in the STANDARD package,
-- used to mark a node as erroneous.
-- Its kind is Iir_Kind_Error.
Error_Mark : constant Iir;
-- Some well know values declared in the STANDARD package.
-- These values (except time_base) *must* not be modified, and are set by
-- create_std_standard_package.
-- Time_base is the base unit of time. It is set during the creation of
-- all these nodes, and can be modified only *immediatly* after.
Time_Base: Iir_Unit_Declaration := Null_Iir;
Std_Standard_File: Iir_Design_File := Null_Iir;
Std_Standard_Unit : Iir_Design_Unit := Null_Iir;
Standard_Package : Iir_Package_Declaration := Null_Iir;
-- Boolean values.
Boolean_Type: Iir_Type_Declaration := Null_Iir;
Boolean_Type_Definition: Iir_Enumeration_Type_Definition;
Boolean_False: Iir_Enumeration_Literal;
Boolean_True: Iir_Enumeration_Literal;
-- Bit values.
Bit_Type: Iir_Type_Declaration := Null_Iir;
Bit_Type_Definition: Iir_Enumeration_Type_Definition;
Bit_0: Iir_Enumeration_Literal;
Bit_1: Iir_Enumeration_Literal;
-- Predefined character.
Character_Type: Iir_Type_Declaration;
Character_Type_Definition : Iir_Enumeration_Type_Definition;
-- severity level.
Severity_Level_Type : Iir_Type_Declaration;
Severity_Level_Type_Definition : Iir_Enumeration_Type_Definition;
Severity_Level_Note : Iir_Enumeration_Literal;
Severity_Level_Warning : Iir_Enumeration_Literal;
Severity_Level_Error : Iir_Enumeration_Literal;
Severity_Level_Failure : Iir_Enumeration_Literal;
-- Universal types.
Universal_Integer_Type : Iir_Anonymous_Type_Declaration;
Universal_Integer_Type_Definition : constant Iir_Integer_Type_Definition;
Universal_Integer_Subtype : Iir_Subtype_Declaration;
Universal_Integer_Subtype_Definition : Iir_Integer_Subtype_Definition;
Universal_Integer_One : Iir_Integer_Literal;
Universal_Real_Type : Iir_Anonymous_Type_Declaration;
Universal_Real_Type_Definition : constant Iir_Floating_Type_Definition;
Universal_Real_Subtype : Iir_Subtype_Declaration;
Universal_Real_Subtype_Definition : Iir_Floating_Subtype_Definition;
-- Predefined integer type.
Integer_Type: Iir_Anonymous_Type_Declaration;
Integer_Type_Definition : Iir_Integer_Type_Definition;
Integer_Subtype : Iir_Subtype_Declaration;
Integer_Subtype_Definition : Iir_Integer_Subtype_Definition;
-- Type used when a subtype indication cannot be semantized.
-- FIXME: To be improved.
Error_Type : Iir_Integer_Type_Definition renames Integer_Type_Definition;
-- Predefined real type.
Real_Type: Iir_Anonymous_Type_Declaration;
Real_Type_Definition : Iir_Floating_Type_Definition;
Real_Subtype : Iir_Subtype_Declaration;
Real_Subtype_Definition : Iir_Floating_Subtype_Definition;
-- Predefined natural subtype.
Natural_Subtype: Iir_Subtype_Declaration;
Natural_Subtype_Definition : Iir_Integer_Subtype_Definition;
-- Predefined positive subtype.
Positive_Subtype: Iir_Subtype_Declaration;
Positive_Subtype_Definition : Iir_Integer_Subtype_Definition;
-- Predefined positive subtype.
String_Type: Iir_Type_Declaration;
String_Type_Definition : Iir_Array_Type_Definition;
-- Predefined positive subtype.
Bit_Vector_Type: Iir_Type_Declaration;
Bit_Vector_Type_Definition : Iir_Array_Type_Definition;
-- predefined time subtype
Time_Type: Iir_Anonymous_Type_Declaration;
Time_Type_Definition: Iir_Physical_Type_Definition;
Time_Subtype_Definition: Iir_Physical_Subtype_Definition;
Time_Subtype : Iir_Subtype_Declaration;
-- For VHDL-93
Delay_Length_Subtype_Definition : Iir_Physical_Subtype_Definition;
Delay_Length_Subtype : Iir_Subtype_Declaration;
-- For VHDL-93:
-- type File_Open_Kind
File_Open_Kind_Type : Iir_Type_Declaration;
File_Open_Kind_Type_Definition : Iir_Enumeration_Type_Definition;
File_Open_Kind_Read_Mode : Iir_Enumeration_Literal;
File_Open_Kind_Write_Mode : Iir_Enumeration_Literal;
File_Open_Kind_Append_Mode : Iir_Enumeration_Literal;
-- For VHDL-93:
-- type File_Open_Status
File_Open_Status_Type : Iir_Type_Declaration;
File_Open_Status_Type_Definition : Iir_Enumeration_Type_Definition;
File_Open_Status_Open_Ok : Iir_Enumeration_Literal;
File_Open_Status_Status_Error : Iir_Enumeration_Literal;
File_Open_Status_Name_Error : Iir_Enumeration_Literal;
File_Open_Status_Mode_Error : Iir_Enumeration_Literal;
-- For VHDL-93:
-- atribute foreign : string;
Foreign_Attribute : Iir_Attribute_Declaration;
-- Internal use only.
-- These types should be considered like universal types, but
-- furthermore, they can be converted to any integer/real types while
-- universal cannot.
Convertible_Integer_Type_Definition : constant Iir_Integer_Type_Definition;
Convertible_Real_Type_Definition : constant Iir_Floating_Type_Definition;
Convertible_Integer_Type : Iir_Anonymous_Type_Declaration;
Convertible_Real_Type : Iir_Anonymous_Type_Declaration;
Convertible_Integer_Subtype_Definition : Iir_Integer_Subtype_Definition;
Convertible_Integer_Subtype : Iir_Subtype_Declaration;
-- Create the first well-known nodes.
procedure Create_First_Nodes;
-- Create the node for the standard package.
procedure Create_Std_Standard_Package (Parent : Iir_Library_Declaration);
private
-- For speed reasons, some often used nodes are hard-coded.
Error_Mark : constant Iir := 2;
Universal_Integer_Type_Definition : constant Iir_Integer_Type_Definition
:= 3;
Universal_Real_Type_Definition : constant Iir_Floating_Type_Definition
:= 4;
Convertible_Integer_Type_Definition : constant Iir_Integer_Type_Definition
:= 5;
Convertible_Real_Type_Definition : constant Iir_Floating_Type_Definition
:= 6;
end Std_Package;
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