Add vtable entry for covariant IEnumerable<object> for WinRT types too. #601
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I realized there were other covariance scenarios still broken, made an attempt at solving them all. |
Scottj1s
reviewed
Nov 23, 2020
Scottj1s
reviewed
Nov 23, 2020
Scottj1s
reviewed
Nov 23, 2020
| @@ -206,6 +207,7 @@ private static bool IsTypeWindowsRuntimeTypeNoArray(Type type) | |||
| || type.GetCustomAttribute<WindowsRuntimeTypeAttribute>() is object; | |||
| } | |||
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| // Use TryGetCompatibleWindowsRuntimeTypesForVariantType instead. | |||
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No, the issue is this API was marked public even though we only used it internally. Since we don't expect anyone else to use it or for it to be used in cross module scenarios, we can accept the breaking change and remove the old version of the API. But before I did that, I wanted to make sure there weren't concerns with that, so I instead put a comment.
Scottj1s
reviewed
Nov 23, 2020
Scottj1s
approved these changes
Nov 23, 2020
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Adding a more complete covariant support. For covariant interfaces, we get all the possible types that can be passed for the generic and create a vtable entry for them. Along with that, if the generic is itself a covariant interface, we do the same for it.
For now, I haven't removed the previous version of this function as it was a public function.
Fixes #592
Fixes #598