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18 -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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27 -- Check that a nonprivate tagged type declared in a package specification
28 -- may be extended with a private extension in a different package
29 -- specification, and that this private extension may in turn be extended
30 -- by a private extension.
32 -- Check that each derivative inherits the user-defined primitive
33 -- subprograms of its parent (including those that its parent inherited),
34 -- that it may override these inherited primitive subprograms, and that it
35 -- may also declare its own primitive subprograms.
37 -- Check that predefined equality operators are defined for the tagged
38 -- type and its derivatives.
40 -- Check that type conversion is defined from a type extension to its
41 -- parent, and that this parent itself may be a type extension.
44 -- Declare a root tagged type and two associated primitive subprograms
45 -- in a package specification (foundation code).
47 -- Extend the root type with a private extension in a different package
48 -- specification. Declare a new primitive subprogram for the extension,
49 -- and override one of the two inherited subprograms. Within the
50 -- overriding subprogram, utilize type conversion to call the parent's
51 -- implementation of the same subprogram. Also within the overriding
52 -- subprogram, call the new primitive subprogram and each inherited
53 -- subprogram. Declare operations of the private extension which utilize
54 -- aggregates and equality operators to verify the correctness of the
57 -- Extend the extension with a private extension in the same package
58 -- specification. Declare a new primitive subprogram for this second
59 -- extension, and override one of the three inherited subprograms.
60 -- Within the overriding subprogram, utilize type conversion to call the
61 -- parent's implementation of the same subprogram. Also within the
62 -- overriding subprogram, call the new primitive subprogram and each
63 -- inherited subprogram. Declare operations of the private extension
64 -- which override the verification operations of its parent. Within
65 -- these overriding operations, utilize type conversion to call the
66 -- parent's implementations of the same operations.
68 -- In the main program, declare objects of the two extended types.
69 -- For each object, call the overriding subprogram, and verify the
70 -- correctness of the components by calling the verification operations
71 -- declared in the second package.
74 -- This test consists of the following files:
82 -- 06 Dec 94 SAIC ACVC 2.0
83 -- 04 Jun 96 SAIC ACVC 2.1: Modified prologue.
89 with F390A00; -- Basic alert abstraction.
90 with C390A030; -- Extended alert abstraction.
92 use F390A00; -- Primitive operations of Alert_Type directly visible.
97 Report.Test ("C390A03", "Primitive operation inheritance by type " &
98 "extensions: all extensions are private and declared " &
99 "in same package, but a different package from that " &
103 -- The case for type F390A00.Alert_Type is tested in C390A01.
104 -- That subtest is not repeated here.
107 LOW_ALERT_SUBTEST: ---------------------------------------------------------
110 Low_Alarm : C390A030.Low_Alert_Type; -- Priv. ext. of tagged type.
111 use C390A030; -- Primitive operations of extension directly visible.
113 if not C390A030.Initial_Values_Okay (Low_Alarm) then
114 Report.Failed ("Wrong initial values for Low_Alert_Type");
119 if C390A030.Bad_Final_Values (Low_Alarm) then
120 Report.Failed ("Wrong values for Low_Alert_Type after Handle");
122 end Low_Alert_Subtest;
125 -- Check intermediate display counts:
127 if F390A00.Display_Count_For /= (Null_Device => 1,
132 Report.Failed ("Wrong display counts after Low_Alert");
136 MEDIUM_ALERT_SUBTEST: ------------------------------------------------------
139 Medium_Alarm : C390A030.Medium_Alert_Type; -- Priv. ext. of extension.
140 use C390A030; -- Primitive operations of extension directly visible.
142 if not C390A030.Initial_Values_Okay (Medium_Alarm) then
143 Report.Failed ("Wrong initial values for Medium_Alert_Type");
146 Handle (Medium_Alarm);
148 if C390A030.Bad_Final_Values (Medium_Alarm) then
149 Report.Failed ("Wrong values for Medium_Alert_Type after Handle");
151 end Medium_Alert_Subtest;
154 -- Check final display counts:
156 if F390A00.Display_Count_For /= (Null_Device => 2,
161 Report.Failed ("Wrong display counts after Medium_Alert_Type");