serge-sans-paille
a55c1eb7b8
Unlike VS, we're not constrained by legacy behavior and should always turn this attribute on where it's needed. There's no VS flag for it, but we can use clang-tidy to detect when it's needed. It's okay to use that attribute when it has no effect, so don't bother trying to be smart in dom/bindings/Codegen.py and always add it. Differential Revision: https://phabricator.services.mozilla.com/D300299
17 lines
459 B
C++
17 lines
459 B
C++
struct EmptyA{};
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struct EmptyB{};
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struct NonEmpty{
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int field;
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};
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#if defined(_MSC_VER)
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# define MOZ_EMPTY_BASES __declspec(empty_bases)
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#else
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# define MOZ_EMPTY_BASES
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#endif
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struct MOZ_EMPTY_BASES Some : EmptyA, EmptyB {}; // no-error
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struct Some0 : EmptyA, EmptyB {}; // expected-error {{Missing MOZ_EMPTY_BASES}}
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struct Some1 : EmptyA, NonEmpty {}; // no-error
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struct Some2 : EmptyA, EmptyB, NonEmpty {}; // expected-error {{Missing MOZ_EMPTY_BASES}}
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