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└─⟦a7d1ea751⟧ Bits:30000550 8mm tape, Rational 1000, !users!projects 94_04_11 └─ ⟦129cab021⟧ »DATA« └─⟦this⟧
with Object, Argument, Message; with String_Class; with Integer_Class; with Bounded_String; with Block_Class; with Counter; with Bug; with Symbol; package body Boolean_Class is type Boolean_Unary_Message is (Entexte, Image, Valeur, Non); type Boolean_Keyword_Message is (Sivrai, Sifaux); package Bs renames Bounded_String; function Create (Value : Boolean) return Object.Reference is Obj : Object.Reference; Val : Integer; begin if Value = Standard.True then Val := 1; else Val := 0; end if; Obj := Object.Create (Ident_Class => Object.Boolean_Class, Ident_Object => Val); return (Obj); end Create; function True return Object.Reference is Obj : Object.Reference; begin Obj := Create (Standard.True); return (Obj); end True; function False return Object.Reference is Obj : Object.Reference; begin Obj := Create (Standard.False); return (Obj); end False; procedure Create_Default is Default_Boolean_Name : Message.Tiny_String; begin Bounded_String.Copy (Default_Boolean_Name, "Vrai"); Symbol.Insert (Default_Boolean_Name, True); Bounded_String.Copy (Default_Boolean_Name, "Faux"); Symbol.Insert (Default_Boolean_Name, False); end Create_Default; function "+" (Left, Right : Object.Reference) return Object.Reference is Obj : Object.Reference; use Object; begin if (Object.Get_Class (Left) /= Object.Boolean_Class) or (Object.Get_Class (Right) /= Object.Boolean_Class) then raise Bug.Mismatch_Type; end if; if (Object.Get_Value (From_Object => Left) = 1) or (Object.Get_Value (From_Object => Right) = 1) then Obj := Create (Value => Standard.True); else Obj := Create (Value => Standard.False); end if; return Obj; end "+"; function "&" (Left, Right : Object.Reference) return Object.Reference is Obj : Object.Reference; use Object; begin if (Object.Get_Class (Left) /= Object.Boolean_Class) or (Object.Get_Class (Right) /= Object.Boolean_Class) then raise Bug.Mismatch_Type; end if; if (Object.Get_Value (From_Object => Left) = 1) and (Object.Get_Value (From_Object => Right) = 1) then Obj := Create (Value => Standard.True); else Obj := Create (Value => Standard.False); end if; return Obj; end "&"; function Equal (Left, Right : Object.Reference) return Object.Reference is Obj : Object.Reference; use Object; begin if (Object.Get_Class (Left) /= Object.Boolean_Class) or (Object.Get_Class (Right) /= Object.Boolean_Class) then raise Bug.Mismatch_Type; end if; if Object.Equal (A => Left, B => Right) then Obj := Create (Standard.True); else Obj := Create (Standard.False); end if; return Obj; end Equal; function Image (Obj : Object.Reference) return Object.Reference is New_String : Message.Tiny_String; begin Bs.Free (V => New_String); if Object.Equal (A => Obj, B => True) then Bs.Copy (New_String, "vrai"); elsif Object.Equal (A => Obj, B => False) then Bs.Copy (New_String, "faux"); else null; end if; return String_Class.Create (Name => New_String); end Image; function Value (Obj : Object.Reference) return Object.Reference is begin return Integer_Class.Create (Object.Get_Value (Obj)); end Value; procedure In_Text (The_Object : Object.Reference) is begin Object.In_Text (The_Object); end In_Text; function Not_Value (Obj : Object.Reference) return Object.Reference is New_Object : Object.Reference; use Object; begin if (Object.Get_Class (Obj) /= Object.Boolean_Class) then raise Bug.Mismatch_Type; end if; if Object.Equal (A => Obj, B => True) then New_Object := Create (Standard.False); elsif Object.Equal (A => Obj, B => False) then New_Object := Create (Standard.True); else null; end if; return New_Object; end Not_Value; function If_True (Obj, Blk : Object.Reference) return Object.Reference is The_Message_Valeur : Message.Tiny_String; New_Object : Object.Reference := Object.Void_Reference; use Object; begin if (Object.Get_Class (Blk) /= Object.Block_Class) then raise Bug.Mismatch_Type; end if; if Object.Equal (A => Obj, B => True) then Bs.Copy (The_Message_Valeur, Block_Class.Message_Valeur); New_Object := Block_Class.Send (Blk, The_Message_Valeur); end if; return New_Object; end If_True; function If_False (Obj, Blk : Object.Reference) return Object.Reference is The_Message_Valeur : Message.Tiny_String; New_Object : Object.Reference := Object.Void_Reference; use Object; begin if (Object.Get_Class (Blk) /= Object.Block_Class) then raise Bug.Mismatch_Type; end if; if Object.Equal (A => Obj, B => False) then Bs.Copy (The_Message_Valeur, Block_Class.Message_Valeur); New_Object := Block_Class.Send (Blk, The_Message_Valeur); end if; return New_Object; end If_False; function If_True_If_False (Obj, Blk1, Blk2 : Object.Reference) return Object.Reference is The_Message_Valeur : Message.Tiny_String; New_Object : Object.Reference := Object.Void_Reference; use Object; begin if (Object.Get_Class (Blk2) /= Object.Block_Class) or (Object.Get_Class (Blk2) /= Object.Block_Class) then raise Bug.Mismatch_Type; end if; Bs.Copy (The_Message_Valeur, Block_Class.Message_Valeur); if Object.Equal (A => Obj, B => True) then New_Object := Block_Class.Send (Blk1, The_Message_Valeur); elsif Object.Equal (A => Obj, B => False) then New_Object := Block_Class.Send (Blk2, The_Message_Valeur); end if; return New_Object; end If_True_If_False; function If_False_If_True (Obj, Blk1, Blk2 : Object.Reference) return Object.Reference is The_Message_Valeur : Message.Tiny_String; New_Object : Object.Reference := Object.Void_Reference; use Object; begin if (Object.Get_Class (Blk2) /= Object.Block_Class) or (Object.Get_Class (Blk2) /= Object.Block_Class) then raise Bug.Mismatch_Type; end if; Bs.Copy (The_Message_Valeur, Block_Class.Message_Valeur); if Object.Equal (A => Obj, B => False) then New_Object := Block_Class.Send (Blk1, The_Message_Valeur); elsif Object.Equal (A => Obj, B => True) then New_Object := Block_Class.Send (Blk2, The_Message_Valeur); end if; return New_Object; end If_False_If_True; function Send (To_Object : Object.Reference; The_Message : Message.Selector; With_Arguments : Argument.List) return Object.Reference is Obj, Arg1 : Object.Reference; Args : Argument.List; begin Args := With_Arguments; Counter.Increase (Object.Boolean_Class); case The_Message is when Message.Ou => Arg1 := Argument.Get (L => Args); Obj := To_Object + Arg1; when Message.Et => Arg1 := Argument.Get (L => Args); Obj := To_Object & Arg1; when Message.Egal => Arg1 := Argument.Get (L => Args); Obj := Equal (To_Object, Arg1); when others => raise Bug.Unknown_Boolean_Message; end case; Counter.Stop_Time (Object.Boolean_Class); return (Obj); end Send; function Send (To_Object : Object.Reference; The_Message : Message.Tiny_String) return Object.Reference is Result : Object.Reference := Object.Void_Reference; Talk : Boolean_Unary_Message; begin Talk := Boolean_Unary_Message'Value (Bs.Image (The_Message)); Counter.Increase (Object.Boolean_Class); case Talk is when Entexte => In_Text (To_Object); Result := To_Object; when Non => Result := Not_Value (Obj => To_Object); when Image => Result := Image (Obj => To_Object); when Valeur => Result := Value (Obj => To_Object); end case; Counter.Stop_Time (Object.Boolean_Class); return (Result); exception when Constraint_Error => raise Bug.Unknown_Boolean_Message; end Send; function Send (To_Object : Object.Reference; The_Message : Message.List; With_Arguments : Argument.List) return Object.Reference is Result, Arg1, Arg2 : Object.Reference := Object.Void_Reference; Args : Argument.List; Message_List : Message.List; Message_Receive : Message.Tiny_String; Talk, Talk2 : Boolean_Keyword_Message; Nb_Message : Natural; begin Args := With_Arguments; Message_List := The_Message; Message_Receive := Message.Get (L => Message_List); Nb_Message := Message.How_Many (L => Message_List); Talk := Boolean_Keyword_Message'Value (Bs.Image (V => Message_Receive)); Counter.Increase (Object.Boolean_Class); case Talk is when Sivrai => Arg1 := Argument.Get (L => With_Arguments); if Nb_Message = 2 then Message.Next (L => Message_List, Mess => Message_Receive); Talk2 := Boolean_Keyword_Message'Value (Bs.Image (V => Message_Receive)); if Talk2 = Sifaux then Argument.Next (L => Args, Obj => Arg2); Result := If_True_If_False (Obj => To_Object, Blk1 => Arg1, Blk2 => Arg2); end if; elsif Nb_Message = 1 then Result := If_True (Obj => To_Object, Blk => Arg1); else raise Bug.Unknown_Boolean_Message; end if; when Sifaux => Arg1 := Argument.Get (L => With_Arguments); if Nb_Message = 2 then Message.Next (L => Message_List, Mess => Message_Receive); Talk2 := Boolean_Keyword_Message'Value (Bs.Image (V => Message_Receive)); if Talk2 = Sivrai then Argument.Next (L => Args, Obj => Arg2); Result := If_False_If_True (Obj => To_Object, Blk1 => Arg1, Blk2 => Arg2); end if; elsif Nb_Message = 1 then Result := If_False (Obj => To_Object, Blk => Arg1); else raise Bug.Unknown_Boolean_Message; end if; end case; Counter.Stop_Time (Object.Boolean_Class); return (Result); exception when Constraint_Error => raise Bug.Unknown_Boolean_Message; end Send; end Boolean_Class;