gcc/testsuite/ada/acats/tests/c3/c393a06.a

   1 -- C393A06.A
   2 --
   3 --                             Grant of Unlimited Rights
   4 --
   5 --     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
   6 --     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
   7 --     unlimited rights in the software and documentation contained herein.
   8 --     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
   9 --     this public release, the Government intends to confer upon all
  10 --     recipients unlimited rights  equal to those held by the Government.
  11 --     These rights include rights to use, duplicate, release or disclose the
  12 --     released technical data and computer software in whole or in part, in
  13 --     any manner and for any purpose whatsoever, and to have or permit others
  14 --     to do so.
  15 --
  16 --                                    DISCLAIMER
  17 --
  18 --     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
  19 --     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
  20 --     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
  21 --     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
  22 --     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
  23 --     PARTICULAR PURPOSE OF SAID MATERIAL.
  24 --*
  25 --
  26 -- OBJECTIVE:
  27 --      Check that a type that inherits abstract operations but
  28 --      overrides each of these operations is not required to be
  29 --      abstract, and that objects of the type and its class-wide type
  30 --      may be declared and passed in calls to the overriding
  31 --      subprograms.
  32 --
  33 -- TEST DESCRIPTION:
  34 --      This test derives a type from the root abstract type available
  35 --      in foundation F393A00.  It declares subprograms as required by
  36 --      the language to override the abstract subprograms, allowing the
  37 --      derived type itself to be not abstract.  It also declares
  38 --      operations on the new type, as well as on the associated class-
  39 --      wide type.  The main program then uses two objects of the type
  40 --      and two objects of the class-wide type as parameters for each of
  41 --      the subprograms.  Correct execution is determined by path
  42 --      analysis and value checking.
  43 --
  44 -- TEST FILES:
  45 --      The following files comprise this test:
  46 --
  47 --         F393A00.A   (foundation code)
  48 --         C393A06.A
  49 --
  50 --
  51 -- CHANGE HISTORY:
  52 --      06 Dec 94   SAIC    ACVC 2.0
  53 --      19 Dec 94   SAIC    Removed RM references from objective text.
  54 --
  55 --!
  56
  57  with F393A00_1;
  58  package C393A06_0 is
  59    type Organism is new F393A00_1.Object with private;
  60    type Kingdoms is ( Animal, Vegetable, Unspecified );
  61
  62    procedure Swap( A,B: in out Organism );
  63    function  Create return Organism;
  64
  65    procedure Initialize( The_Entity     : in out Organism;
  66                          In_The_Kingdom : Kingdoms );
  67    function  Kingdom( Of_The_Entity : Organism ) return Kingdoms;
  68
  69    procedure TC_Check( An_Entity   : Organism'Class;
  70                        In_Kingdom  : Kingdoms;
  71                        Initialized : Boolean );
  72
  73    Incompatible : exception;
  74
  75  private
  76    type Organism is new F393A00_1.Object with
  77      record
  78        In_Kingdom : Kingdoms;
  79      end record;
  80  end C393A06_0;
  81
  82  with F393A00_0;
  83  package body C393A06_0 is
  84
  85    procedure Swap( A,B: in out Organism ) is
  86    begin
  87      F393A00_0.TC_Touch( 'A' );  ------------------------------------------- A
  88      if A.In_Kingdom /= B.In_Kingdom then
  89        F393A00_0.TC_Touch( 'X' );
  90        raise Incompatible;
  91      else
  92        declare
  93          T: constant Organism := A;
  94        begin
  95          A := B;
  96          B := T;
  97        end;
  98      end if;
  99    end Swap;
 100
 101    function  Create return Organism is
 102      Widget : Organism;
 103    begin
 104      F393A00_0.TC_Touch( 'B' ); ------------------------------------------- B
 105      Initialize( Widget );
 106      Widget.In_Kingdom := Unspecified;
 107      return Widget;
 108    end Create;
 109
 110    procedure Initialize( The_Entity     : in out Organism;
 111                          In_The_Kingdom : Kingdoms ) is
 112    begin
 113      F393A00_0.TC_Touch( 'C' ); ------------------------------------------- C
 114      F393A00_1.Initialize( F393A00_1.Object( The_Entity ) );
 115      The_Entity.In_Kingdom := In_The_Kingdom;
 116    end Initialize;
 117
 118    function  Kingdom( Of_The_Entity : Organism ) return Kingdoms is
 119    begin
 120      F393A00_0.TC_Touch( 'D' ); ------------------------------------------- D
 121      return Of_The_Entity.In_Kingdom;
 122    end Kingdom;
 123
 124    procedure TC_Check( An_Entity   : Organism'Class;
 125                        In_Kingdom  : Kingdoms;
 126                        Initialized : Boolean ) is
 127    begin
 128      if F393A00_1.Initialized( An_Entity ) /= Initialized then
 129        F393A00_0.TC_Touch( '-' ); ------------------------------------------- -
 130      elsif An_Entity.In_Kingdom /= In_Kingdom then
 131        F393A00_0.TC_Touch( '!' ); ------------------------------------------- !
 132      else
 133        F393A00_0.TC_Touch( '+' ); ------------------------------------------- +
 134      end if;
 135    end TC_Check;
 136
 137  end C393A06_0;
 138
 139  with Report;
 140
 141  with C393A06_0;
 142  with F393A00_0;
 143  with F393A00_1;
 144  procedure C393A06 is
 145
 146    package Darwin  renames C393A06_0;
 147    package Tagger  renames F393A00_0;
 148    package Objects renames F393A00_1;
 149
 150    Lion      : Darwin.Organism;
 151    Tigerlily : Darwin.Organism;
 152    Bear      : Darwin.Organism'Class := Darwin.Create;
 153    Sunflower : Darwin.Organism'Class := Darwin.Create;
 154
 155    use type Darwin.Kingdoms;
 156
 157  begin  -- Main test procedure.
 158
 159     Report.Test ("C393A06", "Check that a type that inherits abstract "
 160                           & "operations but overrides each of these "
 161                           & "operations is not required to be abstract. "
 162                           & "Check that objects of the type and its "
 163                           & "class-wide type may be declared and passed "
 164                           & "in calls to the overriding subprograms" );
 165
 166    Tagger.TC_Validate( "BaBa", "Declaration Initializations" );
 167
 168    Darwin.Initialize( Lion,      Darwin.Animal );
 169    Darwin.Initialize( Tigerlily, Darwin.Vegetable );
 170    Darwin.Initialize( Bear,      Darwin.Animal );
 171    Darwin.Initialize( Sunflower, Darwin.Vegetable );
 172
 173    Tagger.TC_Validate( "CaCaCaCa", "Initialization sequence" );
 174
 175    Oh_My: begin
 176      Darwin.Swap( Lion, Darwin.Organism( Bear ) );
 177      Darwin.Swap( Lion, Tigerlily );
 178      Report.Failed("Exception not raised");
 179    exception
 180      when Darwin.Incompatible => null;
 181    end Oh_My;
 182
 183    Tagger.TC_Validate( "AAX", "Swap sequence" );
 184
 185    if Darwin.Kingdom( Darwin.Create ) = Darwin.Unspecified then
 186      Darwin.Swap( Sunflower, Darwin.Organism'Class( Tigerlily ) );
 187    end if;
 188
 189    Tagger.TC_Validate( "BaDA", "Vegetable swap sequence" );
 190
 191    Darwin.TC_Check( Lion,      Darwin.Animal,    True );
 192    Darwin.TC_Check( Tigerlily, Darwin.Vegetable, True );
 193    Darwin.TC_Check( Bear,      Darwin.Animal,    True );
 194    Darwin.TC_Check( Sunflower, Darwin.Vegetable, True );
 195
 196    Tagger.TC_Validate( "b+b+b+b+", "Final sequence" );
 197
 198    Report.Result;
 199
 200  end C393A06;
 201