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swiftlang / swift-syntax

A set of Swift libraries for parsing, inspecting, generating, and transforming Swift source code.
Apache License 2.0
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[Syntax] Perf: Optimize 'root' and 'ancestorOrSelf' #2842

Closed rintaro closed 6 days ago

rintaro commented 1 week ago

Accessing Syntax.parent requires retain/release traffic. Especially when traversing ancestors to the root, that ARC traffic is not negligible.

Introduce UnownedSyntax that provides a way to access the parents temporarily without causing ARC traffics.

rintaro commented 1 week ago

@swift-ci Please test

rintaro commented 1 week ago

@swift-ci Please test macOS

rintaro commented 6 days ago

@swift-ci Please test

rintaro commented 6 days ago

@swift-ci Please test Windows

rintaro commented 6 days ago

https://github.com/swiftlang/swift/pull/76360 @swift-ci Please test

rintaro commented 6 days ago

https://github.com/swiftlang/swift/pull/76360 @swift-ci Please test Windows