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LibJS: Convert get_method to ThrowCompletionOr

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This commit is contained in:
Idan Horowitz 2021-09-23 21:24:51 +03:00
parent ab594e5f2f
commit ee825d6d9e
10 changed files with 47 additions and 92 deletions
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20
Userland/Libraries/LibJS/Runtime/Value.cpp
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@ -418,9 +418,7 @@ Value Value::to_primitive(GlobalObject& global_object, PreferredType preferred_t
};
if (is_object()) {
auto& vm = global_object.vm();
auto to_primitive_method = get_method(global_object, *vm.well_known_symbol_to_primitive());
if (vm.exception())
return {};
auto to_primitive_method = TRY_OR_DISCARD(get_method(global_object, *vm.well_known_symbol_to_primitive()));
if (to_primitive_method) {
auto hint = get_hint_for_preferred_type();
auto result = TRY_OR_DISCARD(vm.call(*to_primitive_method, *this, js_string(vm, hint)));
@ -818,7 +816,7 @@ Value Value::get(GlobalObject& global_object, PropertyName const& property_name)
}
// 7.3.10 GetMethod ( V, P ), https://tc39.es/ecma262/#sec-getmethod
FunctionObject* Value::get_method(GlobalObject& global_object, PropertyName const& property_name) const
ThrowCompletionOr<FunctionObject*> Value::get_method(GlobalObject& global_object, PropertyName const& property_name) const
{
auto& vm = global_object.vm();
@ -827,18 +825,16 @@ FunctionObject* Value::get_method(GlobalObject& global_object, PropertyName cons
// 2. Let func be ? GetV(V, P).
auto function = get(global_object, property_name);
if (vm.exception())
return nullptr;
if (auto* exception = vm.exception())
return throw_completion(exception->value());
// 3. If func is either undefined or null, return undefined.
if (function.is_nullish())
return nullptr;
// 4. If IsCallable(func) is false, throw a TypeError exception.
if (!function.is_function()) {
vm.throw_exception<TypeError>(global_object, ErrorType::NotAFunction, function.to_string_without_side_effects());
return nullptr;
}
if (!function.is_function())
return vm.throw_completion<TypeError>(global_object, ErrorType::NotAFunction, function.to_string_without_side_effects());
// 5. Return func.
return &function.as_function();
@ -1292,9 +1288,7 @@ Value instance_of(GlobalObject& global_object, Value lhs, Value rhs)
vm.throw_exception<TypeError>(global_object, ErrorType::NotAnObject, rhs.to_string_without_side_effects());
return {};
}
auto has_instance_method = rhs.get_method(global_object, *vm.well_known_symbol_has_instance());
if (vm.exception())
return {};
auto has_instance_method = TRY_OR_DISCARD(rhs.get_method(global_object, *vm.well_known_symbol_has_instance()));
if (has_instance_method) {
auto has_instance_result = TRY_OR_DISCARD(vm.call(*has_instance_method, rhs, lhs));
return Value(has_instance_result.to_boolean());