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LibJS/JIT: Add fastpath for set variable

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This commit is contained in:
Stephan Vedder 2023-11-16 07:13:35 +01:00 • committed by Andreas Kling
parent b3cbe0fdb9
commit 84eecbb10e
8 changed files with 148 additions and 12 deletions
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5
Userland/Libraries/LibJS/Bytecode/CommonImplementations.cpp
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@ -264,10 +264,13 @@ ThrowCompletionOr<void> set_variable(
DeprecatedFlyString const& name,
Value value,
Op::EnvironmentMode mode,
Op::SetVariable::InitializationMode initialization_mode)
Op::SetVariable::InitializationMode initialization_mode,
EnvironmentVariableCache& cache)
{
auto environment = mode == Op::EnvironmentMode::Lexical ? vm.running_execution_context().lexical_environment : vm.running_execution_context().variable_environment;
auto reference = TRY(vm.resolve_binding(name, environment));
if (reference.environment_coordinate().has_value())
cache = reference.environment_coordinate();
switch (initialization_mode) {
case Op::SetVariable::InitializationMode::Initialize:
TRY(reference.initialize_referenced_binding(vm, value));