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Diffstat (limited to 'gcc-4.9/gcc/testsuite/ada/acats/tests/cb/cb20004.a')
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diff --git a/gcc-4.9/gcc/testsuite/ada/acats/tests/cb/cb20004.a b/gcc-4.9/gcc/testsuite/ada/acats/tests/cb/cb20004.a new file mode 100644 index 000000000..42c0d7672 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/ada/acats/tests/cb/cb20004.a @@ -0,0 +1,203 @@ +-- CB20004.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 exceptions propagate correctly from objects of +-- protected types. Check propagation from protected entry bodies. +-- +-- TEST DESCRIPTION: +-- Declare a package with a protected type, including entries and private +-- data, simulating a bounded buffer abstraction. In the main procedure, +-- perform entry calls on an object of the protected type that raises +-- exceptions. +-- Ensure that the exceptions are: +-- 1) raised and handled locally in the entry body +-- 2) raised in the entry body and handled/reraised to be handled +-- by the caller. +-- 3) raised in the entry body and propagated directly to the calling +-- procedure. +-- +-- +-- CHANGE HISTORY: +-- 06 Dec 94 SAIC ACVC 2.0 +-- +--! + +package CB20004_0 is -- Package Buffer. + + Max_Buffer_Size : constant := 2; + + Handled_In_Body, + Propagated_To_Caller, + Handled_In_Caller : Boolean := False; + + Data_Over_5, + Data_Degradation : exception; + + type Data_Item is range 0 .. 100; + + type Item_Array_Type is array (1 .. Max_Buffer_Size) of Data_Item; + + protected type Bounded_Buffer is + entry Put (Item : in Data_Item); + entry Get (Item : out Data_Item); + private + Item_Array : Item_Array_Type; + I, J : Integer range 1 .. Max_Buffer_Size := 1; + Count : Integer range 0 .. Max_Buffer_Size := 0; + end Bounded_Buffer; + +end CB20004_0; + + --=================================================================-- + +with Report; + +package body CB20004_0 is -- Package Buffer. + + protected body Bounded_Buffer is + + entry Put (Item : in Data_Item) when Count < Max_Buffer_Size is + begin + if Item > 10 then + Item_Array (I) := Item * 8; -- Constraint_Error will be raised + elsif Item > 5 then -- and handled in entry body. + raise Data_Over_5; -- Exception handled/reraised in + else -- entry body, propagated to caller. + Item_Array (I) := Item; -- Store data item in buffer. + I := (I mod Max_Buffer_Size) + 1; + Count := Count + 1; + end if; + exception + when Constraint_Error => + Handled_In_Body := True; + when Data_Over_5 => + Propagated_To_Caller := True; + raise; -- Propagate the exception to the caller. + end Put; + + + entry Get (Item : out Data_Item) when Count > 0 is + begin + Item := Item_Array(J); + J := (J mod Max_Buffer_Size) + 1; + Count := Count - 1; + if Count = 0 then + raise Data_Degradation; -- Exception to propagate to caller. + end if; + end Get; + + end Bounded_Buffer; + +end CB20004_0; + + + --=================================================================-- + + +with CB20004_0; -- Package Buffer. +with Report; + +procedure CB20004 is + + package Buffer renames CB20004_0; + + Data : Buffer.Data_Item := Buffer.Data_Item'First; + Data_Buffer : Buffer.Bounded_Buffer; -- an object of protected type. + + Handled_In_Caller : Boolean := False; -- same name as boolean declared + -- in package Buffer. +begin + + Report.Test ("CB20004", "Check that exceptions propagate correctly " & + "from objects of protected types" ); + + Initial_Data_Block: + begin -- Data causes Constraint_Error. + Data_Buffer.Put (CB20004_0.Data_Item(Report.Ident_Int(51))); + + exception + when Constraint_Error => + Buffer.Handled_In_Body := False; -- Improper exception handling + -- in entry body. + Report.Failed ("Exception propagated to caller " & + " from Initial_Data_Block"); + when others => + Report.Failed ("Exception raised in processing and " & + "propagated to caller from Initial_Data_Block"); + end Initial_Data_Block; + + + Data_Entry_Block: + begin + -- Valid data. No exception. + Data_Buffer.Put (CB20004_0.Data_Item(Report.Ident_Int(3))); + + -- Data will cause exception. + Data_Buffer.Put (7); -- Call protected object entry, + -- exception to be handled/ + -- reraised in entry body. + Report.Failed ("Data_Over_5 Exception not raised in processing"); + exception + when Buffer.Data_Over_5 => + if Buffer.Propagated_To_Caller then -- Reraised in entry body? + Buffer.Handled_In_Caller := True; + else + Report.Failed ("Exception not reraised in entry body"); + end if; + when others => + Report.Failed ("Exception raised in processing and propagated " & + "to caller from Data_Entry_Block"); + end Data_Entry_Block; + + + Data_Retrieval_Block: + begin + + Data_Buffer.Get (Data); -- Retrieval of buffer data, buffer now empty. + -- Exception will be raised in entry body, with + -- propagation to caller. + Report.Failed ("Data_Degradation Exception not raised in processing"); + exception + when Buffer.Data_Degradation => + Handled_In_Caller := True; -- Local Boolean used here. + when others => + Report.Failed ("Exception raised in processing and propagated " & + "to caller from Data_Retrieval_Block"); + end Data_Retrieval_Block; + + + if not (Buffer.Handled_In_Body and -- Validate proper exception + Buffer.Propagated_To_Caller and -- handling in entry bodies. + Buffer.Handled_In_Caller and + Handled_In_Caller) + then + Report.Failed ("Improper exception handling by entry bodies"); + end if; + + + Report.Result; + +end CB20004; |