Cache a linear search for the #[staged_api] attribute. #27574
Merged
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This search happens a lot! Locally, compiling hyper sees the following improvements:
before
real 0m30.843s
user 0m51.644s
sys 0m2.128s
real 0m30.164s
user 0m53.320s
sys 0m2.208s
after
real 0m28.438s
user 0m51.076s
sys 0m2.276s
real 0m28.612s
user 0m51.560s
sys 0m2.192s