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137 | ------------------------------------------------------------------------------
-- --
-- TGen --
-- --
-- Copyright (C) 2022, AdaCore --
-- --
-- TGen is free software; you can redistribute it and/or modify it under --
-- under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 3, or (at your option) any --
-- later version. This software 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. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are --
-- granted additional permissions described in the GCC Runtime Library --
-- Exception, version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and a --
-- copy of the GCC Runtime Library Exception along with this program; see --
-- the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
------------------------------------------------------------------------------
--
-- Type representation for enumerated types
with Ada.Containers.Ordered_Maps;
with TGen.Strategies; use TGen.Strategies;
with TGen.Types.Discrete_Types; use TGen.Types.Discrete_Types;
with TGen.Types.Constraints; use TGen.Types.Constraints;
package TGen.Types.Enum_Types is
type Enum_Typ is new Discrete_Typ with null record;
type Char_Typ (Is_Static, Has_Range : Boolean) is
new Enum_Typ (Is_Static) with record
case Has_Range is
when True =>
Range_Value : Discrete_Range_Constraint;
when others =>
null;
end case;
end record;
function Supports_Static_Gen (Self : Char_Typ) return Boolean is
(not Self.Has_Range or else Self.Range_Value.Static);
-- Whether values for this Typ can be statically generated
function Image (Self : Char_Typ) return String;
function Lit_Image (Self : Char_Typ; Lit : Big_Integer) return String;
-- Return the litteral for Self which is in Lit position. This function
-- only returns values in Character'Range, even if Self is a
-- Wide(_Wide)_Character.
function High_Bound (Self : Char_Typ) return Big_Integer with
Pre => Self.Is_Static;
function Low_Bound (Self : Char_Typ) return Big_Integer with
Pre => Self.Is_Static;
function Kind (Self : Char_Typ) return Typ_Kind is (Char_Kind);
function Encode (Self : Char_Typ; Val : JSON_Value) return JSON_Value;
function Default_Strategy (Self : Char_Typ) return Strategy_Type'Class;
-- Generate a strategy to statically generate (in one pass) values for Self
function As_Char_Typ (Self : SP.Ref) return Char_Typ'Class is
(Char_Typ'Class (Self.Unchecked_Get.all)) with
Pre => (not SP.Is_Null (Self))
and then (Self.Get.Kind in Char_Kind);
pragma Inline (As_Char_Typ);
type Bool_Typ is new Enum_Typ with null record;
function Supports_Static_Gen (Self : Bool_Typ) return Boolean;
-- Whether values for this Typ can be statically generated
function Image (Self : Bool_Typ) return String;
function Lit_Image (Self : Bool_Typ; Lit : Big_Integer) return String;
function High_Bound (Self : Bool_Typ) return Big_Integer with
Pre => Self.Is_Static;
function Kind (Self : Bool_Typ) return Typ_Kind is (Bool_Kind);
function Encode (Self : Bool_Typ; Val : JSON_Value) return JSON_Value;
function As_Bool_Typ (Self : SP.Ref) return Bool_Typ'Class is
(Bool_Typ'Class (Self.Unchecked_Get.all)) with
Pre => (not SP.Is_Null (Self))
and then (Self.Get.Kind in Bool_Kind);
pragma Inline (As_Bool_Typ);
package Enum_Literal_Maps is new Ada.Containers.Ordered_Maps
(Key_Type => Big_Integer,
Element_Type => Unbounded_String,
"<" => Big_Int."<");
type Other_Enum_Typ (Is_Static : Boolean) is new
Enum_Typ (Is_Static => Is_Static) with record
case Is_Static is
when True =>
Literals : Enum_Literal_Maps.Map;
when others =>
null;
end case;
end record;
function Supports_Static_Gen (Self : Other_Enum_Typ) return Boolean is
(Self.Is_Static);
-- Whether values for this Typ can be statically generated
function Image (Self : Other_Enum_Typ) return String;
function Lit_Image (Self : Other_Enum_Typ; Lit : Big_Integer) return String;
function Low_Bound (Self : Other_Enum_Typ) return Big_Integer with
Pre => Self.Is_Static;
function High_Bound (Self : Other_Enum_Typ) return Big_Integer with
Pre => Self.Is_Static;
function Kind (Self : Other_Enum_Typ) return Typ_Kind is (Enum_Kind);
function Encode (Self : Other_Enum_Typ; Val : JSON_Value) return JSON_Value;
function As_Other_Enum_Typ (Self : SP.Ref) return Other_Enum_Typ'Class is
(Other_Enum_Typ'Class (Self.Unchecked_Get.all)) with
Pre => (not SP.Is_Null (Self))
and then (Self.Get.Kind in Enum_Kind);
pragma Inline (As_Other_Enum_Typ);
end TGen.Types.Enum_Types;
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