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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 GHDL; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with Types; use Types;
with Vhdl.Nodes; use Vhdl.Nodes;
package Vhdl.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;
-- Virtual file and location for the standard package.
Std_Source_File : Source_File_Entry := No_Source_File_Entry;
Std_Location: Location_Type := Location_Nil;
-- 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.
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_Declaration : 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_Declaration : 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_Declaration : Iir_Type_Declaration;
Character_Type_Definition : Iir_Enumeration_Type_Definition;
-- severity level.
Severity_Level_Type_Declaration : 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_Declaration : Iir_Anonymous_Type_Declaration;
Universal_Integer_Type_Definition : constant Iir_Integer_Type_Definition;
Universal_Integer_Subtype_Declaration : Iir_Subtype_Declaration;
Universal_Integer_Subtype_Definition : Iir_Integer_Subtype_Definition;
Universal_Integer_One : Iir_Integer_Literal;
Universal_Real_Type_Declaration : Iir_Anonymous_Type_Declaration;
Universal_Real_Type_Definition : constant Iir_Floating_Type_Definition;
Universal_Real_Subtype_Declaration : Iir_Subtype_Declaration;
Universal_Real_Subtype_Definition : Iir_Floating_Subtype_Definition;
-- Predefined integer type.
Integer_Type_Declaration : Iir_Anonymous_Type_Declaration;
Integer_Type_Definition : Iir_Integer_Type_Definition;
Integer_Subtype_Declaration : Iir_Subtype_Declaration;
Integer_Subtype_Definition : Iir_Integer_Subtype_Definition;
-- Type used when the type of an expression is incorrect.
Error_Type : Iir;
-- Predefined real type.
Real_Type_Declaration : Iir_Anonymous_Type_Declaration;
Real_Type_Definition : Iir_Floating_Type_Definition;
Real_Subtype_Declaration : Iir_Subtype_Declaration;
Real_Subtype_Definition : Iir_Floating_Subtype_Definition;
-- Predefined natural subtype.
Natural_Subtype_Declaration : Iir_Subtype_Declaration;
Natural_Subtype_Definition : Iir_Integer_Subtype_Definition;
-- Predefined positive subtype.
Positive_Subtype_Declaration : Iir_Subtype_Declaration;
Positive_Subtype_Definition : Iir_Integer_Subtype_Definition;
-- Predefined positive subtype.
String_Type_Declaration : Iir_Type_Declaration;
String_Type_Definition : Iir_Array_Type_Definition;
-- Predefined positive subtype.
Bit_Vector_Type_Declaration : Iir_Type_Declaration;
Bit_Vector_Type_Definition : Iir_Array_Type_Definition;
-- predefined time subtype
Time_Type_Declaration : Iir_Anonymous_Type_Declaration;
Time_Type_Definition: Iir_Physical_Type_Definition;
Time_Subtype_Definition: Iir_Physical_Subtype_Definition;
Time_Subtype_Declaration : Iir_Subtype_Declaration;
-- For AMS-VHDL
Domain_Type_Type_Declaration : Iir_Type_Declaration;
Domain_Type_Type_Definition : Iir_Enumeration_Type_Definition;
Domain_Type_Quiescent_Domain : Iir_Enumeration_Literal;
Domain_Type_Time_Domain : Iir_Enumeration_Literal;
Domain_Type_Frequency_Domain : Iir_Enumeration_Literal;
Domain_Signal : Iir_Signal_Declaration;
-- For VHDL-93
Delay_Length_Subtype_Definition : Iir_Physical_Subtype_Definition;
Delay_Length_Subtype_Declaration : Iir_Subtype_Declaration;
-- For VHDL-93:
-- type File_Open_Kind
File_Open_Kind_Type_Declaration : 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_Declaration : 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;
-- For VHDL-08
Boolean_Vector_Type_Definition : Iir_Array_Type_Definition;
Boolean_Vector_Type_Declaration : Iir_Type_Declaration;
Integer_Vector_Type_Definition : Iir_Array_Type_Definition;
Integer_Vector_Type_Declaration : Iir_Type_Declaration;
Real_Vector_Type_Definition : Iir_Array_Type_Definition;
Real_Vector_Type_Declaration : Iir_Type_Declaration;
Time_Vector_Type_Definition : Iir_Array_Type_Definition;
Time_Vector_Type_Declaration : Iir_Type_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_Declaration : Iir_Anonymous_Type_Declaration;
Convertible_Real_Type_Declaration : Iir_Anonymous_Type_Declaration;
Convertible_Integer_Subtype_Definition : Iir_Integer_Subtype_Definition;
Convertible_Integer_Subtype_Declaration : Iir_Subtype_Declaration;
-- Wilcard types.
-- Err, we break privacy for iir numbers, but this allow use of them in
-- case statements.
Wildcard_Any_Type : constant Iir := 7;
Wildcard_Any_Aggregate_Type : constant Iir := 8;
Wildcard_Any_String_Type : constant Iir := 9;
Wildcard_Any_Access_Type : constant Iir := 10;
Wildcard_Any_Integer_Type : constant Iir := 11;
Wildcard_Psl_Bit_Type : constant Iir := 12;
Wildcard_Psl_Bitvector_Type : constant Iir := 13;
-- Subtype for all wildcard types, so that missing choice can be detected
-- at compilation time.
subtype Iir_Wildcard_Types is Iir range 7 .. 13;
-- Chain of wildcard declarations, to own the nodes.
Wildcard_Type_Declaration_Chain : Iir;
-- 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);
procedure Set_Time_Resolution (Resolution : Character);
-- Return the minimal time resolution according to use of time units.
function Get_Minimal_Time_Resolution return Character;
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 Vhdl.Std_Package;
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