| -- C761006.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 Program_Error is raised when: |
| -- * an exception is raised if Finalize invoked as part of an |
| -- assignment operation; or |
| -- * an exception is raised if Adjust invoked as part of an assignment |
| -- operation, after any other adjustment due to be performed are |
| -- performed; or |
| -- * an exception is raised if Finalize invoked as part of a call on |
| -- Unchecked_Deallocation, after any other finalizations to be |
| -- performed are performed. |
| -- |
| -- TEST DESCRIPTION: |
| -- This test defines these four controlled types: |
| -- Good |
| -- Bad_Initialize |
| -- Bad_Adjust |
| -- Bad_Finalize |
| -- The type name conveys the associated failure. The operations in type |
| -- good will "touch" the boolean array indicating correct path |
| -- utilization for the purposes of checking "other <operations> are |
| -- performed", where <operations> ::= initialization, adjusting, and |
| -- finalization |
| -- |
| -- |
| -- |
| -- CHANGE HISTORY: |
| -- 12 APR 94 SAIC Initial version |
| -- 02 MAY 96 SAIC Visibility fixed for 2.1 |
| -- 13 FEB 97 PWB.CTA Corrected value of Events_Occurring at line 286 |
| -- 01 DEC 97 EDS Made correction wrt RM 7.6(21) |
| -- 16 MAR 01 RLB Corrected Adjust cases to avoid problems with |
| -- RM 7.6.1(16/1) from Technical Corrigendum 1. |
| -- |
| --! |
| |
| ------------------------------------------------------------- C761006_Support |
| |
| package C761006_Support is |
| |
| type Events is ( Good_Initialize, Good_Adjust, Good_Finalize ); |
| |
| type Event_Array is array(Events) of Boolean; |
| |
| Events_Occurring : Event_Array := (others => False); |
| |
| Propagating_Exception : exception; |
| |
| procedure Raise_Propagating_Exception(Do_It: Boolean); |
| |
| function Unique_Value return Natural; |
| |
| end C761006_Support; |
| |
| ------------------------------------------------------------- C761006_Support |
| |
| with Report; |
| package body C761006_Support is |
| |
| procedure Raise_Propagating_Exception(Do_It: Boolean) is |
| begin |
| if Report.Ident_Bool(Do_It) then |
| raise Propagating_Exception; |
| end if; |
| end Raise_Propagating_Exception; |
| |
| Seed : Natural := 0; |
| |
| function Unique_Value return Natural is |
| begin |
| Seed := Seed +1; |
| return Seed; |
| end Unique_Value; |
| |
| end C761006_Support; |
| |
| ------------------------------------------------------------------- C761006_0 |
| |
| with Ada.Finalization; |
| with C761006_Support; |
| package C761006_0 is |
| |
| type Good is new Ada.Finalization.Controlled |
| with record |
| Initialized : Boolean := False; |
| Adjusted : Boolean := False; |
| Unique : Natural := C761006_Support.Unique_Value; |
| end record; |
| |
| procedure Initialize( It: in out Good ); |
| procedure Adjust ( It: in out Good ); |
| procedure Finalize ( It: in out Good ); |
| |
| type Bad_Initialize is private; |
| |
| type Bad_Adjust is private; |
| |
| type Bad_Finalize is private; |
| |
| Inits_Order : String(1..255); |
| Inits_Called : Natural := 0; |
| private |
| type Bad_Initialize is new Ada.Finalization.Controlled |
| with null record; |
| procedure Initialize( It: in out Bad_Initialize ); |
| |
| type Bad_Adjust is new Ada.Finalization.Controlled |
| with null record; |
| procedure Adjust ( It: in out Bad_Adjust ); |
| |
| type Bad_Finalize is |
| new Ada.Finalization.Controlled with null record; |
| procedure Finalize ( It: in out Bad_Finalize ); |
| end C761006_0; |
| |
| ------------------------------------------------------------------- C761006_1 |
| |
| with Ada.Finalization; |
| with C761006_0; |
| package C761006_1 is |
| |
| type Init_Check_Root is new Ada.Finalization.Controlled with record |
| Good_Component : C761006_0.Good; |
| Init_Fails : C761006_0.Bad_Initialize; |
| end record; |
| |
| type Adj_Check_Root is new Ada.Finalization.Controlled with record |
| Good_Component : C761006_0.Good; |
| Adj_Fails : C761006_0.Bad_Adjust; |
| end record; |
| |
| type Fin_Check_Root is new Ada.Finalization.Controlled with record |
| Good_Component : C761006_0.Good; |
| Fin_Fails : C761006_0.Bad_Finalize; |
| end record; |
| |
| end C761006_1; |
| |
| ------------------------------------------------------------------- C761006_2 |
| |
| with C761006_1; |
| package C761006_2 is |
| |
| type Init_Check is new C761006_1.Init_Check_Root with null record; |
| type Adj_Check is new C761006_1.Adj_Check_Root with null record; |
| type Fin_Check is new C761006_1.Fin_Check_Root with null record; |
| |
| end C761006_2; |
| |
| ------------------------------------------------------------------- C761006_0 |
| |
| with Report; |
| with C761006_Support; |
| package body C761006_0 is |
| |
| package Sup renames C761006_Support; |
| |
| procedure Initialize( It: in out Good ) is |
| begin |
| Sup.Events_Occurring( Sup.Good_Initialize ) := True; |
| It.Initialized := True; |
| end Initialize; |
| |
| procedure Adjust ( It: in out Good ) is |
| begin |
| Sup.Events_Occurring( Sup.Good_Adjust ) := True; |
| It.Adjusted := True; |
| It.Unique := C761006_Support.Unique_Value; |
| end Adjust; |
| |
| procedure Finalize ( It: in out Good ) is |
| begin |
| Sup.Events_Occurring( Sup.Good_Finalize ) := True; |
| end Finalize; |
| |
| procedure Initialize( It: in out Bad_Initialize ) is |
| begin |
| Sup.Raise_Propagating_Exception(Report.Ident_Bool(True)); |
| end Initialize; |
| |
| procedure Adjust( It: in out Bad_Adjust ) is |
| begin |
| Sup.Raise_Propagating_Exception(Report.Ident_Bool(True)); |
| end Adjust; |
| |
| procedure Finalize( It: in out Bad_Finalize ) is |
| begin |
| Sup.Raise_Propagating_Exception(Report.Ident_Bool(True)); |
| end Finalize; |
| |
| end C761006_0; |
| |
| --------------------------------------------------------------------- C761006 |
| |
| with Report; |
| with C761006_0; |
| with C761006_2; |
| with C761006_Support; |
| with Ada.Exceptions; |
| with Ada.Finalization; |
| with Unchecked_Deallocation; |
| procedure C761006 is |
| |
| package Sup renames C761006_Support; |
| use type Sup.Event_Array; |
| |
| type Procedure_Handle is access procedure; |
| |
| type Test_ID is ( Simple, Initialize, Adjust, Finalize ); |
| |
| Sub_Tests : array(Test_ID) of Procedure_Handle; |
| |
| procedure Simple_Test is |
| A_Good_Object : C761006_0.Good; -- should call Initialize |
| begin |
| if not A_Good_Object.Initialized then |
| Report.Failed("Good object not initialized"); |
| end if; |
| |
| -- should call Adjust |
| A_Good_Object := ( Ada.Finalization.Controlled |
| with Unique => 0, others => False ); |
| if not A_Good_Object.Adjusted then |
| Report.Failed("Good object not adjusted"); |
| end if; |
| |
| -- should call Finalize before end of scope |
| end Simple_Test; |
| |
| procedure Initialize_Test is |
| begin |
| declare |
| This_Object_Fails_In_Initialize : C761006_2.Init_Check; |
| begin |
| Report.Failed("Exception in Initialize did not occur"); |
| exception |
| when others => |
| Report.Failed("Initialize caused exception at wrong lex"); |
| end; |
| |
| Report.Failed("Error in execution sequence"); |
| |
| exception |
| when Sup.Propagating_Exception => -- this is correct |
| if not Sup.Events_Occurring(Sup.Good_Initialize) then |
| Report.Failed("Initialization of Good Component did not occur"); |
| end if; |
| end Initialize_Test; |
| |
| procedure Adjust_Test is |
| This_Object_OK : C761006_2.Adj_Check; |
| This_Object_Target : C761006_2.Adj_Check; |
| begin |
| |
| Check_Adjust_Due_To_Assignment: begin |
| This_Object_Target := This_Object_OK; |
| Report.Failed("Adjust did not propagate any exception"); |
| exception |
| when Program_Error => -- expected case |
| if not This_Object_Target.Good_Component.Adjusted then |
| Report.Failed("other adjustment not performed"); |
| end if; |
| when others => |
| Report.Failed("Adjust propagated wrong exception"); |
| end Check_Adjust_Due_To_Assignment; |
| |
| C761006_Support.Events_Occurring := (True, False, False); |
| |
| Check_Adjust_Due_To_Initial_Assignment: declare |
| Another_Target : C761006_2.Adj_Check := This_Object_OK; |
| begin |
| Report.Failed("Adjust did not propagate any exception"); |
| exception |
| when others => Report.Failed("Adjust caused exception at wrong lex"); |
| end Check_Adjust_Due_To_Initial_Assignment; |
| |
| exception |
| when Program_Error => -- expected case |
| if Sup.Events_Occurring(Sup.Good_Finalize) /= |
| Sup.Events_Occurring(Sup.Good_Adjust) then |
| -- RM 7.6.1(16/1) says that the good Adjust may or may not |
| -- be performed; but if it is, then the Finalize must be |
| -- performed; and if it is not, then the Finalize must not |
| -- performed. |
| if Sup.Events_Occurring(Sup.Good_Finalize) then |
| Report.Failed("Good adjust not performed with bad adjust, " & |
| "but good finalize was"); |
| else |
| Report.Failed("Good adjust performed with bad adjust, " & |
| "but good finalize was not"); |
| end if; |
| end if; |
| when others => |
| Report.Failed("Adjust propagated wrong exception"); |
| end Adjust_Test; |
| |
| procedure Finalize_Test is |
| |
| Fin_Not_Perf : constant String := "other finalizations not performed"; |
| |
| procedure Finalize_15 is |
| Item : C761006_2.Fin_Check; |
| Target : C761006_2.Fin_Check; |
| begin |
| |
| Item := Target; |
| -- finalization of Item should cause PE |
| -- ARM7.6:21 allows the implementation to omit the assignment of the |
| -- value into an anonymous object, which is the point at which Adjust |
| -- is normally called. However, this would result in Program_Error's |
| -- being raised before the call to Adjust, with the consequence that |
| -- Adjust is never called. |
| |
| exception |
| when Program_Error => -- expected case |
| if not Sup.Events_Occurring(Sup.Good_Finalize) then |
| Report.Failed("Assignment: " & Fin_Not_Perf); |
| end if; |
| when others => |
| Report.Failed("Other exception in Finalize_15"); |
| |
| -- finalization of Item/Target should cause PE |
| end Finalize_15; |
| |
| -- check failure in finalize due to Unchecked_Deallocation |
| |
| type Shark is access C761006_2.Fin_Check; |
| |
| procedure Catch is |
| new Unchecked_Deallocation( C761006_2.Fin_Check, Shark ); |
| |
| procedure Finalize_17 is |
| White : Shark := new C761006_2.Fin_Check; |
| begin |
| Catch( White ); |
| exception |
| when Program_Error => |
| if not Sup.Events_Occurring(Sup.Good_Finalize) then |
| Report.Failed("Unchecked_Deallocation: " & Fin_Not_Perf); |
| end if; |
| end Finalize_17; |
| |
| begin |
| |
| Exception_In_Finalization: begin |
| Finalize_15; |
| exception |
| when Program_Error => null; -- anticipated |
| end Exception_In_Finalization; |
| |
| Use_Of_Unchecked_Deallocation: begin |
| Finalize_17; |
| exception |
| when others => |
| Report.Failed("Unchecked_Deallocation check, unwanted exception"); |
| end Use_Of_Unchecked_Deallocation; |
| |
| end Finalize_Test; |
| |
| begin -- Main test procedure. |
| |
| Report.Test ("C761006", "Check that exceptions raised in Initialize, " & |
| "Adjust and Finalize are processed correctly" ); |
| |
| Sub_Tests := (Simple_Test'Access, Initialize_Test'Access, |
| Adjust_Test'Access, Finalize_Test'Access); |
| |
| for Test in Sub_Tests'Range loop |
| begin |
| |
| Sup.Events_Occurring := (others => False); |
| |
| Sub_Tests(Test).all; |
| |
| case Test is |
| when Simple | Adjust => |
| if Sup.Events_Occurring /= Sup.Event_Array ' ( others => True ) then |
| Report.Failed ( "Other operation missing in " & |
| Test_ID'Image ( Test ) ); |
| end if; |
| when Initialize => |
| null; |
| when Finalize => |
| -- Note that for Good_Adjust, we may get either True or False |
| if Sup.Events_Occurring ( Sup.Good_Initialize ) = False or |
| Sup.Events_Occurring ( Sup.Good_Finalize ) = False |
| then |
| Report.Failed ( "Other operation missing in " & |
| Test_ID'Image ( Test ) ); |
| end if; |
| end case; |
| |
| exception |
| when How: others => Report.Failed( Ada.Exceptions.Exception_Name( How ) |
| & " from " & Test_ID'Image( Test ) ); |
| end; |
| end loop; |
| |
| Report.Result; |
| |
| end C761006; |
