[Skylark] Cache isParamNamed computation. #5701
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Java uses dynamically generated proxy classes to access annotation properties and their methods are ~7X slower than plain getters. According to async-profiler 50%+ of `convertArgumentList` method time is spent in dynamic proxy methods, so optimizing their performance makes sense. This also makes the model less anemic, since POJOs can actually provide business methods.
This change is focused on 2 things: - avoid creating builders in case they don't end up being used - create builders using the maximum expected size to avoid intermediate allocations to accomodate more elements
Java uses dynamically generated proxy classes to access annotation properties and their methods are ~7X slower than plain getters. According to async-profiler 50%+ of `convertArgumentList` method time is spent in dynamic proxy methods, so optimizing their performance makes sense. This also makes the model less anemic, since POJOs can actually provide business methods.
According to async-profiler, about 50% of `Tuple.getSlice` method invocation is spent in `ImmutableList.copyOf` which is completely unnecessary for cases when an `ImmutableList` instance is passed.
When `isLegacyNamed` is `true`, `named` is considered to be `true` as well, so instead of going through an extra indirection and computation, just use `named` field to store combined result.
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When
isLegacyNamedistrue,namedis considered to betrueas well,so instead of going through an extra indirection and computation, just use
namedfield to store combined result.