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LibJS: Make Environment::has_binding() optionally return binding index
If the caller wants to use the binding index for anything, if there is such a thing, it can now be obtained via an optional out-parameter.
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7 changed files with 13 additions and 8 deletions
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@ -25,7 +25,7 @@ void ObjectEnvironment::visit_edges(Cell::Visitor& visitor)
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}
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// 9.1.1.2.1 HasBinding ( N ), https://tc39.es/ecma262/#sec-object-environment-records-hasbinding-n
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bool ObjectEnvironment::has_binding(FlyString const& name) const
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bool ObjectEnvironment::has_binding(FlyString const& name, Optional<size_t>*) const
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{
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auto& vm = this->vm();
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bool found_binding = TRY_OR_DISCARD(m_binding_object.has_property(name));
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