dotnet/roslyn

Refactor `CheckFeatureAvailability` to not accept a `Location` parameter

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#68,935 opened on 2023年7月8日

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Area-CompilersArea-Performancehelp wanted

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説明

Currently, CheckFeatureAvailability overloads take a Location parameter. Causing caller to call syntaxNode.Location which allocates a SourceLocation. At the end, if the feature is available, the allocation is thrown away.

Example:

https://github.com/dotnet/roslyn/blob/b203101cbc6672a9761a7ce4917d26be593aed26/src/Compilers/CSharp/Portable/Binder/Binder_Patterns.cs#L574

Not sure how much this pattern is hit, but it's good to optimize this anyway.

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