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LibJS: Convert internal_has_property() to ThrowCompletionOr

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This commit is contained in:
Linus Groh 2021-09-29 18:08:06 +01:00
parent 5da210125e
commit d9895ec12d
10 changed files with 32 additions and 32 deletions
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30
Userland/Libraries/LibJS/Runtime/ProxyObject.cpp
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@ -416,7 +416,7 @@ ThrowCompletionOr<bool> ProxyObject::internal_define_own_property(PropertyName c
}
// 10.5.7 [[HasProperty]] ( P ), https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-hasproperty-p
bool ProxyObject::internal_has_property(PropertyName const& property_name) const
ThrowCompletionOr<bool> ProxyObject::internal_has_property(PropertyName const& property_name) const
{
auto& vm = this->vm();
auto& global_object = this->global_object();
@ -427,16 +427,14 @@ bool ProxyObject::internal_has_property(PropertyName const& property_name) const
// 2. Let handler be O.[[ProxyHandler]].
// 3. If handler is null, throw a TypeError exception.
if (m_is_revoked) {
vm.throw_exception<TypeError>(global_object, ErrorType::ProxyRevoked);
return {};
}
if (m_is_revoked)
return vm.throw_completion<TypeError>(global_object, ErrorType::ProxyRevoked);
// 4. Assert: Type(handler) is Object.
// 5. Let target be O.[[ProxyTarget]].
// 6. Let trap be ? GetMethod(handler, "has").
auto trap = TRY_OR_DISCARD(Value(&m_handler).get_method(global_object, vm.names.has));
auto trap = TRY(Value(&m_handler).get_method(global_object, vm.names.has));
// 7. If trap is undefined, then
if (!trap) {
@ -445,31 +443,27 @@ bool ProxyObject::internal_has_property(PropertyName const& property_name) const
}
// 8. Let booleanTrapResult be ! ToBoolean(? Call(trap, handler, « target, P »)).
auto trap_result = TRY_OR_DISCARD(vm.call(*trap, &m_handler, &m_target, property_name_to_value(vm, property_name))).to_boolean();
auto trap_result = TRY(vm.call(*trap, &m_handler, &m_target, property_name_to_value(vm, property_name))).to_boolean();
// 9. If booleanTrapResult is false, then
if (!trap_result) {
// a. Let targetDesc be ? target.[[GetOwnProperty]](P).
auto target_descriptor = TRY_OR_DISCARD(m_target.internal_get_own_property(property_name));
auto target_descriptor = TRY(m_target.internal_get_own_property(property_name));
// b. If targetDesc is not undefined, then
if (target_descriptor.has_value()) {
// i. If targetDesc.[[Configurable]] is false, throw a TypeError exception.
if (!*target_descriptor->configurable) {
vm.throw_exception<TypeError>(global_object, ErrorType::ProxyHasExistingNonConfigurable);
return {};
}
if (!*target_descriptor->configurable)
return vm.throw_completion<TypeError>(global_object, ErrorType::ProxyHasExistingNonConfigurable);
// ii. Let extensibleTarget be ? IsExtensible(target).
auto extensible_target = m_target.is_extensible();
if (vm.exception())
return {};
if (auto* exception = vm.exception())
return throw_completion(exception->value());
// iii. If extensibleTarget is false, throw a TypeError exception.
if (!extensible_target) {
vm.throw_exception<TypeError>(global_object, ErrorType::ProxyHasExistingNonExtensible);
return false;
}
if (!extensible_target)
return vm.throw_completion<TypeError>(global_object, ErrorType::ProxyHasExistingNonExtensible);
}
}