[generator] Avoid C#11 delegate cache overhead. #1053
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
jonathanpeppers
approved these changes
Oct 25, 2022
Member
jonathanpeppers
left a comment
jonathanpeppers
left a comment
There was a problem hiding this comment.
The changes here look right.
The only thing we should do in the next java.interop bump, is delete this line:
And just let Mono.Android.dll compile with C# 11, checking what the size diff is.
Contributor
Author
|
Yeah, my bad, I should have mentioned my test XA PR does that and no tests fail. 🎉 https://github.com/xamarin/xamarin-android/pull/7478/files |
jonpryor
pushed a commit
to dotnet/android
that referenced
this pull request
Nov 1, 2022
Fixes: dotnet/java-interop#1034 Fixes: dotnet/java-interop#1051 Context: 938b2cb Changes: dotnet/java-interop@e1ee4b1...5318261 * dotnet/java-interop@53182615: [build] Update Microsoft.* NuGet package versions (dotnet/java-interop#1055) * dotnet/java-interop@8e18c909: [generator] Avoid C#11 delegate cache overhead. (dotnet/java-interop#1053) * dotnet/java-interop@2d8b6d24: [generator] More AttributeTargets on SupportedOSPlatformAttribute (dotnet/java-interop#1054) * dotnet/java-interop@7dfbab67: [generator] Add [SupportedOSPlatform] to bound constant fields (dotnet/java-interop#1038) * dotnet/java-interop@1720628a: [generator] Mark generated .cs files as generated (dotnet/java-interop#1052) * dotnet/java-interop@f498fcf5: [Java.Interop] Avoid some method group conversions (dotnet/java-interop#1050) * dotnet/java-interop@16e1ecd4: [build] Use $(VSINSTALLDIR), not $(VSINSTALLROOT) (dotnet/java-interop#1048) * dotnet/java-interop@8e4c7d20: [Hello-Core] Add "low level" sample. (dotnet/java-interop#1047) Additionally, remove `$(LangVersion)`=10 from `Mono.Android.csproj`, which was a hack to work around a size regression due to delegate caching in C# 11; see also 938b2cb, dotnet/java-interop@8e18c909. Co-authored-by: Jonathan Pobst <[email protected]>
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fixes: #1034
Context: dotnet/roslyn#62832 (comment)
On a recent .NET 7 bump, we found a ~4.5% app size regression related to a new C# 11 delegate feature.
Instead of emitting e.g.
generatorshould instead emit:This should avoid a C#11 "caching method group conversion", allowing
Mono.Android.dllassembly size to be ~unchanged between C#10 and C#11.Test JI bump with this change is green: https://devdiv.visualstudio.com/DevDiv/_build/results?buildId=6867774&view=results.