IReference operators need to go into the level-1 header#906
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IReference operators need to go into the level-1 header#906
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That way they are defined whenever the interface is defined.
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@kennykerr Note that |
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@oldnewthing That's a remnant of the xlang side project that aimed to support C++/WinRT on non-Windows metadata. That's been canned so we can remove those conditionals. |
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Jun 24, 2021
Implementation relies on methods in the top-level header, so defer implementation to there. This reverts the change to base_reference_produce.h from #906 and reduces base_reference_produce_1.h to merely forward references. This is enough to get structures to compile, although you cannot meaningfully use any IReferences in them until you include Windows.Foundation.h (which is consistent with existing rules for namespace headers).
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That way they are defined whenever the interface is defined.
This brings
IReference<T>in line with all other types with customoperator==, which had already defined those operators at the point the type is defined.Note that
operator co_awaitis still defined in the top header even though the type being co-awaited is defined in the level-1 or level-2 header. This isn't a problem in practice because if you try toco_awaitaDispatcherQueue(say), without having included the top-level header, you will be told, "I don't know how to co_await a DispatcherQueue" because the DispatcherQueue doesn't implement await_ready.Fixes #801