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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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3
Libraries/LibJS/Runtime/BoundFunction.cpp
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@@ -40,8 +40,9 @@ BoundFunction::BoundFunction(GlobalObject& global_object, Function& target_funct
void BoundFunction::initialize(GlobalObject& global_object)
{
auto& vm = this->vm();
Function::initialize(global_object);
define_property("length", Value(m_length), Attribute::Configurable);
define_property(vm.names.length, Value(m_length), Attribute::Configurable);
}
BoundFunction::~BoundFunction()