зеркало из https://github.com/mozilla/gecko-dev.git
80 строки
2.9 KiB
C++
80 строки
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/DefineEnum.h"
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// Sanity test for MOZ_DEFINE_ENUM.
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MOZ_DEFINE_ENUM(TestEnum1, (EnumeratorA, EnumeratorB, EnumeratorC));
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static_assert(EnumeratorA == 0, "Unexpected enumerator value");
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static_assert(EnumeratorB == 1, "Unexpected enumerator value");
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static_assert(EnumeratorC == 2, "Unexpected enumerator value");
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static_assert(kHighestTestEnum1 == EnumeratorC, "Incorrect highest value");
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static_assert(kTestEnum1Count == 3, "Incorrect enumerator count");
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// Sanity test for MOZ_DEFINE_ENUM_CLASS.
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MOZ_DEFINE_ENUM_CLASS(TestEnum2, (A, B, C));
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static_assert(TestEnum2::A == TestEnum2(0), "Unexpected enumerator value");
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static_assert(TestEnum2::B == TestEnum2(1), "Unexpected enumerator value");
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static_assert(TestEnum2::C == TestEnum2(2), "Unexpected enumerator value");
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static_assert(kHighestTestEnum2 == TestEnum2::C, "Incorrect highest value");
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static_assert(kTestEnum2Count == 3, "Incorrect enumerator count");
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// TODO: Test that the _WITH_BASE variants generate enumerators with the
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// correct underlying types. To do this, we need an |UnderlyingType|
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// type trait, which needs compiler support (recent versions of
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// compilers in the GCC family provide an |__underlying_type| builtin
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// for this purpose.
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// Sanity test for MOZ_DEFINE_ENUM[_CLASS]_AT_CLASS_SCOPE.
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struct TestClass {
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MOZ_DEFINE_ENUM_AT_CLASS_SCOPE(
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TestEnum3, (
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EnumeratorA,
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EnumeratorB,
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EnumeratorC
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));
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MOZ_DEFINE_ENUM_CLASS_AT_CLASS_SCOPE(
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TestEnum4, (
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A,
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B,
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C
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));
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static_assert(EnumeratorA == 0, "Unexpected enumerator value");
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static_assert(EnumeratorB == 1, "Unexpected enumerator value");
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static_assert(EnumeratorC == 2, "Unexpected enumerator value");
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static_assert(sHighestTestEnum3 == EnumeratorC, "Incorrect highest value");
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static_assert(sTestEnum3Count == 3, "Incorrect enumerator count");
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static_assert(TestEnum4::A == TestEnum4(0), "Unexpected enumerator value");
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static_assert(TestEnum4::B == TestEnum4(1), "Unexpected enumerator value");
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static_assert(TestEnum4::C == TestEnum4(2), "Unexpected enumerator value");
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static_assert(sHighestTestEnum4 == TestEnum4::C, "Incorrect highest value");
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static_assert(sTestEnum4Count == 3, "Incorrect enumerator count");
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};
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// Test that MOZ_DEFINE_ENUM doesn't allow giving enumerators initializers.
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#ifdef CONFIRM_COMPILATION_ERRORS
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MOZ_DEFINE_ENUM_CLASS(EnumWithInitializer1, (A = -1, B, C))
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MOZ_DEFINE_ENUM_CLASS(EnumWithInitializer2, (A = 1, B, C))
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MOZ_DEFINE_ENUM_CLASS(EnumWithInitializer3, (A, B = 6, C))
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#endif
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int
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main()
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{
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// Nothing to do here, all tests are static_asserts.
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return 0;
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}
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