diff options
Diffstat (limited to 'gcc/testsuite/ada/acats/tests/c7/c760007.a')
| -rw-r--r-- | gcc/testsuite/ada/acats/tests/c7/c760007.a | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/gcc/testsuite/ada/acats/tests/c7/c760007.a b/gcc/testsuite/ada/acats/tests/c7/c760007.a new file mode 100644 index 000000000..c1ddfcb93 --- /dev/null +++ b/gcc/testsuite/ada/acats/tests/c7/c760007.a @@ -0,0 +1,247 @@ +-- C760007.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 Adjust is called for the execution of a return +-- statement for a function returning a result of a (non-limited) +-- controlled type. +-- +-- Check that Adjust is called when evaluating an aggregate +-- component association for a controlled component. +-- +-- Check that Adjust is called for the assignment of the ancestor +-- expression of an extension aggregate when the type of the +-- aggregate is controlled. +-- +-- TEST DESCRIPTION: +-- A type is derived from Ada.Finalization.Controlled; the dispatching +-- procedure Adjust is defined for the new type. Structures and +-- subprograms to model the test objectives are used to check that +-- Adjust is called at the right time. For the sake of simplicity, +-- globally accessible data is used to check that the calls are made. +-- +-- +-- CHANGE HISTORY: +-- 06 DEC 94 SAIC ACVC 2.0 +-- 14 OCT 95 SAIC Update and repair for ACVC 2.0.1 +-- 05 APR 96 SAIC Add RM reference +-- 06 NOV 96 SAIC Reduce adjust requirement +-- 25 NOV 97 EDS Allowed zero calls to adjust at line 144 +--! + +---------------------------------------------------------------- C760007_0 + +with Ada.Finalization; +package C760007_0 is + + type Controlled is new Ada.Finalization.Controlled with record + TC_ID : Natural := Natural'Last; + end record; + procedure Adjust( Object: in out Controlled ); + + type Structure is record + Controlled_Component : Controlled; + end record; + + type Child is new Controlled with record + TC_XX : Natural := Natural'Last; + end record; + procedure Adjust( Object: in out Child ); + + Adjust_Count : Natural := 0; + Child_Adjust_Count : Natural := 0; + +end C760007_0; + +package body C760007_0 is + + procedure Adjust( Object: in out Controlled ) is + begin + Adjust_Count := Adjust_Count +1; + end Adjust; + + procedure Adjust( Object: in out Child ) is + begin + Child_Adjust_Count := Child_Adjust_Count +1; + end Adjust; + +end C760007_0; + +------------------------------------------------------------------ C760007 + +with Report; +with C760007_0; +procedure C760007 is + + procedure Check_Adjust_Count(Message: String; + Min: Natural := 1; + Max: Natural := 2) is + begin + + -- in order to allow for the anonymous objects referred to in + -- the reference manual, the check for calls to Adjust must be + -- in a range. This number must then be further adjusted + -- to allow for the optimization that does not call for an adjust + -- of an aggregate initial value built directly in the object + + if C760007_0.Adjust_Count not in Min..Max then + Report.Failed(Message + & " = " & Natural'Image(C760007_0.Adjust_Count)); + end if; + C760007_0.Adjust_Count := 0; + end Check_Adjust_Count; + + procedure Check_Child_Adjust_Count(Message: String; + Min: Natural := 1; + Max: Natural := 2) is + begin + -- ditto above + + if C760007_0.Child_Adjust_Count not in Min..Max then + Report.Failed(Message + & " = " & Natural'Image(C760007_0.Child_Adjust_Count)); + end if; + C760007_0.Child_Adjust_Count := 0; + end Check_Child_Adjust_Count; + + Object : C760007_0.Controlled; + +-- Check that Adjust is called for the execution of a return +-- statement for a function returning a result of a (non-limited) +-- controlled type or a result of a noncontrolled type with +-- controlled components. + + procedure Subtest_1 is + function Create return C760007_0.Controlled is + New_Object : C760007_0.Controlled; + begin + return New_Object; + end Create; + + procedure Examine( Thing : in C760007_0.Controlled ) is + begin + Check_Adjust_Count("Function call passed as parameter",0); + end Examine; + + begin + -- this assignment must call Adjust: + -- 1: on the value resulting from the function + -- ** unless this is optimized out by building the result directly + -- in the target object. + -- 2: on Object once it's been assigned + -- may call adjust + -- 1: for a anonymous object created in the evaluation of the function + -- 2: for a anonymous object created in the assignment operation + + Object := Create; + + Check_Adjust_Count("Function call",1,4); + + Examine( Create ); + + end Subtest_1; + +-- Check that Adjust is called when evaluating an aggregate +-- component association for a controlled component. + + procedure Subtest_2 is + S : C760007_0.Structure; + + procedure Examine( Thing : in C760007_0.Structure ) is + begin + Check_Adjust_Count("Aggregate passed as parameter"); + end Examine; + + begin + -- this assignment must call Adjust: + -- 1: on the value resulting from the aggregate + -- ** unless this is optimized out by building the result directly + -- in the target object. + -- 2: on Object once it's been assigned + -- may call adjust + -- 1: for a anonymous object created in the evaluation of the aggregate + -- 2: for a anonymous object created in the assignment operation + S := ( Controlled_Component => Object ); + Check_Adjust_Count("Aggregate and Assignment", 1, 4); + + Examine( C760007_0.Structure'(Controlled_Component => Object) ); + end Subtest_2; + +-- Check that Adjust is called for the assignment of the ancestor +-- expression of an extension aggregate when the type of the +-- aggregate is controlled. + + procedure Subtest_3 is + Bambino : C760007_0.Child; + + procedure Examine( Thing : in C760007_0.Child ) is + begin + Check_Adjust_Count("Extension aggregate as parameter (ancestor)", 0, 2); + Check_Child_Adjust_Count("Extension aggregate as parameter", 0, 4); + end Examine; + + begin + -- implementation permissions make all of the following calls to adjust + -- optional: + -- these assignments may call Adjust: + -- 1: on the value resulting from the aggregate + -- 2: on Object once it's been assigned + -- 3: for a anonymous object created in the evaluation of the aggregate + -- 4: for a anonymous object created in the assignment operation + Bambino := ( Object with TC_XX => 10 ); + Check_Adjust_Count("Ancestor (expression) part of aggregate", 0, 2); + Check_Child_Adjust_Count("Child aggregate assignment 1", 0, 4 ); + + Bambino := ( C760007_0.Controlled with TC_XX => 11 ); + Check_Adjust_Count("Ancestor (subtype_mark) part of aggregate", 0, 2); + Check_Child_Adjust_Count("Child aggregate assignment 2", 0, 4 ); + + Examine( ( Object with TC_XX => 21 ) ); + + Examine( ( C760007_0.Controlled with TC_XX => 37 ) ); + + end Subtest_3; + +begin -- Main test procedure. + + Report.Test ("C760007", "Check that Adjust is called for the " & + "execution of a return statement for a " & + "function returning a result containing a " & + "controlled type. Check that Adjust is " & + "called when evaluating an aggregate " & + "component association for a controlled " & + "component. " & + "Check that Adjust is called for the " & + "assignment of the ancestor expression of an " & + "extension aggregate when the type of the " & + "aggregate is controlled" ); + + Subtest_1; + Subtest_2; + Subtest_3; + + Report.Result; + +end C760007; |