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LibJS: Cache commonly used FlyStrings in the VM

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Roughly 7% of test-js runtime was spent creating FlyStrings from string
literals. This patch frontloads that work and caches all the commonly
used names in LibJS on a CommonPropertyNames struct that hangs off VM.
This commit is contained in:
Andreas Kling
2020-10-13 23:49:19 +02:00
parent 9f6c5f68b6
commit 7b863330dc
45 changed files with 651 additions and 392 deletions
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2
Libraries/LibJS/Runtime/Error.cpp
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@@ -51,7 +51,7 @@ Error::~Error()
return global_object.heap().allocate<ClassName>(global_object, message, *global_object.snake_name##_prototype()); \
} \
ClassName::ClassName(const String& message, Object& prototype) \
: Error(#ClassName, message, prototype) \
: Error(vm().names.ClassName, message, prototype) \
{ \
} \
ClassName::~ClassName() { }