-- CA11D02.A -- -- Grant of Unlimited Rights -- -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687 and -- F08630-91-C-0015, 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 an exception declared in a package can be raised by a -- child of a child package. Check that it can be renamed in the -- child of the child package and raised with the correct effect. -- -- TEST DESCRIPTION: -- Declare a package which defines complex number abstraction with -- user-defined exceptions (foundation code). -- -- Add a public child package to the above package. Declare two -- subprograms for the parent type. -- -- Add a public grandchild package to the foundation package. Declare -- subprograms to raise exceptions. -- -- In the main program, "with" the grandchild package, then check that -- the exceptions are raised and handled as expected. Ensure that -- exceptions are: -- 1) raised in the public grandchild package and handled/reraised to -- be handled by the main program. -- 2) raised and handled locally by the "others" handler in the -- public grandchild package. -- 3) raised in the public grandchild and propagated to the main -- program. -- -- TEST FILES: -- This test depends on the following foundation code: -- -- FA11D00.A -- -- -- CHANGE HISTORY: -- 06 Dec 94 SAIC ACVC 2.0 -- --! -- Child package of FA11D00. package FA11D00.CA11D02_0 is -- Basic_Complex function "+" (Left, Right : Complex_Type) return Complex_Type; -- Add two complex numbers. function "*" (Left, Right : Complex_Type) return Complex_Type; -- Multiply two complex numbers. end FA11D00.CA11D02_0; -- Basic_Complex --=======================================================================-- package body FA11D00.CA11D02_0 is -- Basic_Complex function "+" (Left, Right : Complex_Type) return Complex_Type is begin return ( (Left.Real + Right.Real, Left.Imag + Right.Imag) ); end "+"; -------------------------------------------------------------- function "*" (Left, Right : Complex_Type) return Complex_Type is begin return ( Real => (Left.Real * Right.Real), Imag => (Left.Imag * Right.Imag) ); end "*"; end FA11D00.CA11D02_0; -- Basic_Complex --=======================================================================-- -- Child package of FA11D00.CA11D02_0. -- Grandchild package of FA11D00. package FA11D00.CA11D02_0.CA11D02_1 is -- Array_Complex Inverse_Error : exception renames Divide_Error; -- Reference to exception -- in grandparent package. Array_Size : constant := 2; type Complex_Array_Type is array (1 .. Array_Size) of Complex_Type; -- Reference to type -- in parent package. function Multiply (Left : Complex_Array_Type; -- Multiply two complex Right : Complex_Array_Type) -- arrays. return Complex_Array_Type; function Add (Left, Right : Complex_Array_Type) -- Add two complex return Complex_Array_Type; -- arrays. procedure Inverse (Right : in Complex_Array_Type; -- Invert a complex Left : in out Complex_Array_Type); -- array. end FA11D00.CA11D02_0.CA11D02_1; -- Array_Complex --=======================================================================-- with Report; package body FA11D00.CA11D02_0.CA11D02_1 is -- Array_Complex function Multiply (Left : Complex_Array_Type; Right : Complex_Array_Type) return Complex_Array_Type is -- This procedure will raise an exception depending on the input -- parameter. The exception will be handled locally by the -- "others" handler. Result : Complex_Array_Type := (others => Zero); subtype Vector_Size is Positive range Left'Range; begin if Left = Result or else Right = Result then -- Do not multiply zero. raise Multiply_Error; -- Refence to exception in -- grandparent package. Report.Failed ("Program control not transferred by raise"); else for I in Vector_Size loop Result(I) := ( Left(I) * Right(I) ); -- Basic_Complex."*". end loop; end if; return (Result); exception when others => Report.Comment ("Exception is handled by others in Multiplication"); TC_Handled_In_Grandchild_Pkg_Func := true; return (Zero, Zero); end Multiply; -------------------------------------------------------------- function Add (Left, Right : Complex_Array_Type) return Complex_Array_Type is -- This function will raise an exception depending on the input -- parameter. The exception will be propagated and handled -- by the caller. Result : Complex_Array_Type := (others => Zero); subtype Vector_Size is Positive range Left'Range; begin if Left = Result or Right = Result then -- Do not add zero. raise Add_Error; -- Refence to exception in -- grandparent package. Report.Failed ("Program control not transferred by raise"); else for I in Vector_Size loop Result(I) := ( Left(I) + Right(I) ); -- Basic_Complex."+". end loop; end if; return (Result); end Add; -------------------------------------------------------------- procedure Inverse (Right : in Complex_Array_Type; Left : in out Complex_Array_Type) is -- This function will raise an exception depending on the input -- parameter. The exception will be handled/reraised to be -- handled by the caller. Result : Complex_Array_Type := (others => Zero); Array_With_Zero : boolean := false; begin for I in 1 .. Right'Length loop if Right(I) = Zero then -- Check for zero. Array_With_Zero := true; end if; end loop; If Array_With_Zero then raise Inverse_Error; -- Do not inverse zero. Report.Failed ("Program control not transferred by raise"); else for I in 1 .. Array_Size loop Left(I).Real := - Right(I).Real; Left(I).Imag := - Right(I).Imag; end loop; end if; exception when Inverse_Error => TC_Handled_In_Grandchild_Pkg_Proc := true; Left := Result; raise; -- Reraise the Inverse_Error exception in the subtest. Report.Failed ("Exception not reraised in handler"); when others => Report.Failed ("Unexpected exception in procedure Inverse"); end Inverse; end FA11D00.CA11D02_0.CA11D02_1; -- Array_Complex --=======================================================================-- with FA11D00.CA11D02_0.CA11D02_1; -- Array_Complex, -- implicitly with Basic_Complex. with Report; procedure CA11D02 is package Complex_Pkg renames FA11D00; package Array_Complex_Pkg renames FA11D00.CA11D02_0.CA11D02_1; use Complex_Pkg; use Array_Complex_Pkg; begin Report.Test ("CA11D02", "Check that an exception declared in a package " & "can be raised by a child of a child package"); Multiply_Complex_Subtest: declare Operand_1 : Complex_Array_Type := ( Complex (Int_Type (Report.Ident_Int (3)), Int_Type (Report.Ident_Int (5))), Complex (Int_Type (Report.Ident_Int (2)), Int_Type (Report.Ident_Int (8))) ); Operand_2 : Complex_Array_Type := ( Complex (Int_Type (Report.Ident_Int (1)), Int_Type (Report.Ident_Int (2))), Complex (Int_Type (Report.Ident_Int (3)), Int_Type (Report.Ident_Int (6))) ); Operand_3 : Complex_Array_Type := ( Zero, Zero); Mul_Result : Complex_Array_Type := ( Complex (Int_Type (Report.Ident_Int (3)), Int_Type (Report.Ident_Int (10))), Complex (Int_Type (Report.Ident_Int (6)), Int_Type (Report.Ident_Int (48))) ); Complex_No : Complex_Array_Type := (others => Zero); begin If (Multiply (Operand_1, Operand_2) /= Mul_Result) then Report.Failed ("Incorrect results from multiplication"); end if; -- Error is raised and exception will be handled in grandchild package. Complex_No := Multiply (Operand_1, Operand_3); if Complex_No /= (Zero, Zero) then Report.Failed ("Exception was not raised in multiplication"); end if; exception when Multiply_Error => Report.Failed ("Exception raised in multiplication and " & "propagated to caller"); TC_Handled_In_Grandchild_Pkg_Func := false; -- Improper exception handling in caller. when others => Report.Failed ("Unexpected exception in multiplication"); TC_Handled_In_Grandchild_Pkg_Func := false; -- Improper exception handling in caller. end Multiply_Complex_Subtest; Add_Complex_Subtest: declare Operand_1 : Complex_Array_Type := ( Complex (Int_Type (Report.Ident_Int (2)), Int_Type (Report.Ident_Int (7))), Complex (Int_Type (Report.Ident_Int (5)), Int_Type (Report.Ident_Int (8))) ); Operand_2 : Complex_Array_Type := ( Complex (Int_Type (Report.Ident_Int (4)), Int_Type (Report.Ident_Int (1))), Complex (Int_Type (Report.Ident_Int (2)), Int_Type (Report.Ident_Int (3))) ); Operand_3 : Complex_Array_Type := ( Zero, Zero); Add_Result : Complex_Array_Type := ( Complex (Int_Type (Report.Ident_Int (6)), Int_Type (Report.Ident_Int (8))), Complex (Int_Type (Report.Ident_Int (7)), Int_Type (Report.Ident_Int (11))) ); Complex_No : Complex_Array_Type := (others => Zero); begin Complex_No := Add (Operand_1, Operand_2); If (Complex_No /= Add_Result) then Report.Failed ("Incorrect results from addition"); end if; -- Error is raised in grandchild package and exception -- will be propagated to caller. Complex_No := Add (Operand_1, Operand_3); if Complex_No = Add_Result then Report.Failed ("Exception was not raised in addition"); end if; exception when Add_Error => TC_Propagated_To_Caller := true; -- Exception is propagated. when others => Report.Failed ("Unexpected exception in addition subtest"); TC_Propagated_To_Caller := false; -- Improper exception handling -- in caller. end Add_Complex_Subtest; Inverse_Complex_Subtest: declare Operand_1 : Complex_Array_Type := ( Complex (Int_Type (Report.Ident_Int (1)), Int_Type (Report.Ident_Int (5))), Complex (Int_Type (Report.Ident_Int (3)), Int_Type (Report.Ident_Int (11))) ); Operand_3 : Complex_Array_Type := ( Zero, Complex (Int_Type (Report.Ident_Int (3)), Int_Type (Report.Ident_Int (6))) ); Inv_Result : Complex_Array_Type := ( Complex (Int_Type (Report.Ident_Int (-1)), Int_Type (Report.Ident_Int (-5))), Complex (Int_Type (Report.Ident_Int (-3)), Int_Type (Report.Ident_Int (-11))) ); Complex_No : Complex_Array_Type := (others => Zero); begin Inverse (Operand_1, Complex_No); if (Complex_No /= Inv_Result) then Report.Failed ("Incorrect results from inverse"); end if; -- Error is raised in grandchild package and exception -- will be handled/reraised to caller. Inverse (Operand_3, Complex_No); Report.Failed ("Exception was not handled in inverse"); exception when Inverse_Error => if not TC_Handled_In_Grandchild_Pkg_Proc then Report.Failed ("Exception was not raised in inverse"); else TC_Handled_In_Caller := true; -- Exception is reraised from -- child package. end if; when others => Report.Failed ("Unexpected exception in inverse"); TC_Handled_In_Caller := false; -- Improper exception handling in caller. end Inverse_Complex_Subtest; if not (TC_Handled_In_Caller and -- Check to see that all TC_Handled_In_Grandchild_Pkg_Proc and -- exceptions were handled TC_Handled_In_Grandchild_Pkg_Func and -- in proper location. TC_Propagated_To_Caller) then Report.Failed ("Exceptions handled in incorrect locations"); end if; Report.Result; end CA11D02;