-- C371001.A -- -- Grant of Unlimited Rights -- -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained -- unlimited rights in the software and documentation contained herein. -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making -- this public release, the Government intends to confer upon all -- recipients unlimited rights equal to those held by the Government. -- These rights include rights to use, duplicate, release or disclose the -- released technical data and computer software in whole or in part, in -- any manner and for any purpose whatsoever, and to have or permit others -- to do so. -- -- DISCLAIMER -- -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A -- PARTICULAR PURPOSE OF SAID MATERIAL. --* -- -- OBJECTIVE: -- Check that if a discriminant constraint depends on a discriminant, -- the evaluation of the expressions in the constraint is deferred -- until an object of the subtype is created. Check for cases of -- records with private type component. -- -- TEST DESCRIPTION: -- This transition test defines record type and incomplete types with -- discriminant components which depend on the discriminants. The -- discriminants are calculated by function calls. The test verifies -- that Constraint_Error is raised during the object creations when -- values of discriminants are incompatible with the subtypes. -- -- Inspired by C37214A.ADA and C37216A.ADA. -- -- -- CHANGE HISTORY: -- 11 Apr 96 SAIC Initial version for ACVC 2.1. -- 06 Oct 96 SAIC Added LM references. Replaced "others exception" -- with "unexpected exception" -- --! with Report; procedure C371001 is subtype Small_Int is Integer range 1..10; Func1_Cons : Integer := 0; --------------------------------------------------------- function Func1 return Integer is begin Func1_Cons := Func1_Cons + Report.Ident_Int(1); return Func1_Cons; end Func1; begin Report.Test ("C371001", "Check that if a discriminant constraint " & "depends on a discriminant, the evaluation of the " & "expressions in the constraint is deferred until " & "object declarations"); --------------------------------------------------------- -- Constraint checks on an object declaration of a record. begin declare package C371001_0 is type PT_W_Disc (D : Small_Int) is private; type Rec_W_Private (D1 : Integer) is record C : PT_W_Disc (D1); end record; type Rec (D3 : Integer) is record C1 : Rec_W_Private (D3); end record; private type PT_W_Disc (D : Small_Int) is record Str : String (1 .. D) := (others => '*'); end record; end C371001_0; --=====================================================-- Obj : C371001_0.Rec(Report.Ident_Int(0)); -- Constraint_Error raised. begin Report.Failed ("Obj - Constraint_Error should be raised"); if Obj.C1.D1 /= 0 then Report.Failed ("Obj - Shouldn't get here"); end if; exception when others => Report.Failed ("Obj - exception raised too late"); end; exception when Constraint_Error => -- Exception expected. null; when others => Report.Failed ("Obj - unexpected exception raised"); end; ------------------------------------------------------------------- -- Constraint checks on an object declaration of an array. begin declare package C371001_1 is type PT_W_Disc (D : Small_Int) is private; type Rec_W_Private (D1 : Integer) is record C : PT_W_Disc (D1); end record; type Rec_01 (D3 : Integer) is record C1 : Rec_W_Private (D3); end record; type Arr is array (1 .. 5) of Rec_01(Report.Ident_Int(0)); -- No Constraint_Error -- raised. private type PT_W_Disc (D : Small_Int) is record Str : String (1 .. D) := (others => '*'); end record; end C371001_1; --=====================================================-- begin declare Obj1 : C371001_1.Arr; -- Constraint_Error raised. begin Report.Failed ("Obj1 - Constraint_Error should be raised"); if Obj1(1).D3 /= 0 then Report.Failed ("Obj1 - Shouldn't get here"); end if; exception when others => Report.Failed ("Obj1 - exception raised too late"); end; exception when Constraint_Error => -- Exception expected. null; when others => Report.Failed ("Obj1 - unexpected exception raised"); end; exception when Constraint_Error => Report.Failed ("Arr - Constraint_Error raised"); when others => Report.Failed ("Arr - unexpected exception raised"); end; ------------------------------------------------------------------- -- Constraint checks on an object declaration of an access type. begin declare package C371001_2 is type PT_W_Disc (D : Small_Int) is private; type Rec_W_Private (D1 : Integer) is record C : PT_W_Disc (D1); end record; type Rec_02 (D3 : Integer) is record C1 : Rec_W_Private (D3); end record; type Acc_Rec2 is access Rec_02 -- No Constraint_Error (Report.Ident_Int(11)); -- raised. private type PT_W_Disc (D : Small_Int) is record Str : String (1 .. D) := (others => '*'); end record; end C371001_2; --=====================================================-- begin declare Obj2 : C371001_2.Acc_Rec2; -- No Constraint_Error -- raised. begin Obj2 := new C371001_2.Rec_02 (Report.Ident_Int(11)); -- Constraint_Error raised. Report.Failed ("Obj2 - Constraint_Error should be raised"); if Obj2.D3 /= 1 then Report.Failed ("Obj2 - Shouldn't get here"); end if; exception when Constraint_Error => -- Exception expected. null; when others => Report.Failed ("Obj2 - unexpected exception raised in " & "assignment"); end; exception when Constraint_Error => Report.Failed ("Obj2 - Constraint_Error raised in declaration"); when others => Report.Failed ("Obj2 - unexpected exception raised in " & "declaration"); end; exception when Constraint_Error => Report.Failed ("Acc_Rec2 - Constraint_Error raised"); when others => Report.Failed ("Acc_Rec2 - unexpected exception raised"); end; ------------------------------------------------------------------- -- Constraint checks on an object declaration of a subtype. Func1_Cons := -1; begin declare package C371001_3 is type PT_W_Disc (D1, D2 : Small_Int) is private; type Rec_W_Private (D3, D4 : Integer) is record C : PT_W_Disc (D3, D4); end record; type Rec_03 (D5 : Integer) is record C1 : Rec_W_Private (D5, Func1); -- Func1 evaluated, end record; -- value 0. subtype Subtype_Rec is Rec_03(1); -- No Constraint_Error -- raised. private type PT_W_Disc (D1, D2 : Small_Int) is record Str1 : String (1 .. D1) := (others => '*'); Str2 : String (1 .. D2) := (others => '*'); end record; end C371001_3; --=====================================================-- begin declare Obj3 : C371001_3.Subtype_Rec; -- Constraint_Error raised. begin Report.Failed ("Obj3 - Constraint_Error should be raised"); if Obj3.D5 /= 1 then Report.Failed ("Obj3 - Shouldn't get here"); end if; exception when others => Report.Failed ("Obj3 - exception raised too late"); end; exception when Constraint_Error => -- Exception expected. null; when others => Report.Failed ("Obj3 - unexpected exception raised"); end; exception when Constraint_Error => Report.Failed ("Subtype_Rec - Constraint_Error raised"); when others => Report.Failed ("Subtype_Rec - unexpected exception raised"); end; ------------------------------------------------------------------- -- Constraint checks on an object declaration of an incomplete type. Func1_Cons := 10; begin declare package C371001_4 is type Rec_04 (D3 : Integer); type PT_W_Disc (D : Small_Int) is private; type Rec_W_Private (D1, D2 : Small_Int) is record C : PT_W_Disc (D2); end record; type Rec_04 (D3 : Integer) is record C1 : Rec_W_Private (D3, Func1); -- Func1 evaluated end record; -- value 11. type Acc_Rec4 is access Rec_04 (1); -- No Constraint_Error -- raised. private type PT_W_Disc (D : Small_Int) is record Str : String (1 .. D) := (others => '*'); end record; end C371001_4; --=====================================================-- begin declare Obj4 : C371001_4.Acc_Rec4; -- No Constraint_Error -- raised. begin Obj4 := new C371001_4.Rec_04 (1); -- Constraint_Error raised. Report.Failed ("Obj4 - Constraint_Error should be raised"); if Obj4.D3 /= 1 then Report.Failed ("Obj4 - Shouldn't get here"); end if; exception when Constraint_Error => -- Exception expected. null; when others => Report.Failed ("Obj4 - unexpected exception raised in " & "assignment"); end; exception when Constraint_Error => Report.Failed ("Obj4 - Constraint_Error raised in declaration"); when others => Report.Failed ("Obj4 - unexpected exception raised in " & "declaration"); end; exception when Constraint_Error => Report.Failed ("Acc_Rec4 - Constraint_Error raised"); when others => Report.Failed ("Acc_Rec4 - unexpected exception raised"); end; Report.Result; exception when others => Report.Failed ("Discriminant value checked too soon"); Report.Result; end C371001;