Change return type of CanExecuteChanged only for MUX.Input.ICommand#1092
Merged
manodasanW merged 2 commits intomicrosoft:masterfrom Mar 8, 2022
Merged
Change return type of CanExecuteChanged only for MUX.Input.ICommand#1092manodasanW merged 2 commits intomicrosoft:masterfrom
manodasanW merged 2 commits intomicrosoft:masterfrom
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thanks @mcooley - with this change, what does CanExecuteChanged get projected to for Windows.UI.Xaml.Input.ICommand? |
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@asklar on Windows.UI.Xaml.Input.ICommand, CanExecuteChanged will be |
asklar
approved these changes
Mar 2, 2022
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/azp run |
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Commenter does not have sufficient privileges for PR 1092 in repo microsoft/CsWinRT |
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@manodasanW could you take a look? LGTM. |
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/azp run |
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Azure Pipelines successfully started running 1 pipeline(s). |
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manodasanW
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Mar 8, 2022
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Fixes #597
Microsoft.UI.Xaml.Input.ICommand is mapped to System.Windows.Input.ICommand. The CanExecuteChanged events on those two types aren't exactly the same, so there is a special case in the code generation to fix up the type mapping. This was introduced in #112.
The check for this special case is currently too broad: it will apply to any event named "CanExecuteChanged" of type "EventHandler", even if that event is part of some unknown-to-cswinrt type that is not mapped to System.Windows.Input.ICommand. (I hit this with the WUX.Input.ICommand type in system XAML--since system XAML is not supported, its types should be treated as unknown-to-cswinrt everywhere.)
This PR makes the check more specific, so it affects only the mapped MUX type.