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LibJS: Convert create_mutable_binding() to ThrowCompletionOr

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Also add spec step comments to it while we're here.
This commit is contained in:
Linus Groh 2021-10-09 18:53:25 +01:00
parent fbb176c926
commit 4baf3a91e8
10 changed files with 43 additions and 39 deletions
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5
Userland/Libraries/LibJS/Runtime/ObjectEnvironment.cpp
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@ -60,11 +60,12 @@ ThrowCompletionOr<bool> ObjectEnvironment::has_binding(FlyString const& name, Op
}
// 9.1.1.2.2 CreateMutableBinding ( N, D ), https://tc39.es/ecma262/#sec-object-environment-records-createmutablebinding-n-d
void ObjectEnvironment::create_mutable_binding(GlobalObject&, FlyString const& name, bool can_be_deleted)
ThrowCompletionOr<void> ObjectEnvironment::create_mutable_binding(GlobalObject&, FlyString const& name, bool can_be_deleted)
{
// 1. Let bindingObject be envRec.[[BindingObject]].
// 2. Return ? DefinePropertyOrThrow(bindingObject, N, PropertyDescriptor { [[Value]]: undefined, [[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: D }).
MUST(m_binding_object.define_property_or_throw(name, { .value = js_undefined(), .writable = true, .enumerable = true, .configurable = can_be_deleted }));
TRY(m_binding_object.define_property_or_throw(name, { .value = js_undefined(), .writable = true, .enumerable = true, .configurable = can_be_deleted }));
return {};
}
// 9.1.1.2.3 CreateImmutableBinding ( N, S ), https://tc39.es/ecma262/#sec-object-environment-records-createimmutablebinding-n-s