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LibJS: Use create_list_from_array_like() in Reflect.{apply,construct}()

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This commit is contained in:
Linus Groh 2021-06-09 23:28:20 +01:00
parent ad7aa05cc6
commit f932da095e
4 changed files with 4 additions and 26 deletions
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1
Userland/Libraries/LibJS/Runtime/ErrorTypes.h
View file

@ -136,7 +136,6 @@
M(ReferenceUnresolvable, "Unresolvable reference") \
M(ReflectArgumentMustBeAFunction, "First argument of Reflect.{}() must be a function") \
M(ReflectArgumentMustBeAnObject, "First argument of Reflect.{}() must be an object") \
M(ReflectBadArgumentsList, "Arguments list must be an object") \
M(ReflectBadNewTarget, "Optional third argument of Reflect.construct() must be a constructor") \
M(ReflectBadDescriptorArgument, "Descriptor argument is not an object") \
M(RegExpCompileError, "RegExp compile error: {}") \

25
Userland/Libraries/LibJS/Runtime/ReflectObject.cpp
View file

@ -36,25 +36,6 @@ static Function* get_target_function_from(GlobalObject& global_object, const Str
return &target.as_function();
}
static void prepare_arguments_list(GlobalObject& global_object, Value value, MarkedValueList& arguments)
{
auto& vm = global_object.vm();
if (!value.is_object()) {
vm.throw_exception<TypeError>(global_object, ErrorType::ReflectBadArgumentsList);
return;
}
auto& arguments_list = value.as_object();
auto length = length_of_array_like(global_object, arguments_list);
if (vm.exception())
return;
for (size_t i = 0; i < length; ++i) {
auto element = arguments_list.get(String::number(i));
if (vm.exception())
return;
arguments.append(element.value_or(js_undefined()));
}
}
ReflectObject::ReflectObject(GlobalObject& global_object)
: Object(*global_object.object_prototype())
{
@ -91,8 +72,7 @@ JS_DEFINE_NATIVE_FUNCTION(ReflectObject::apply)
if (!target)
return {};
auto this_arg = vm.argument(1);
MarkedValueList arguments(vm.heap());
prepare_arguments_list(global_object, vm.argument(2), arguments);
auto arguments = create_list_from_array_like(global_object, vm.argument(2));
if (vm.exception())
return {};
return vm.call(*target, this_arg, move(arguments));
@ -103,8 +83,7 @@ JS_DEFINE_NATIVE_FUNCTION(ReflectObject::construct)
auto* target = get_target_function_from(global_object, "construct");
if (!target)
return {};
MarkedValueList arguments(vm.heap());
prepare_arguments_list(global_object, vm.argument(1), arguments);
auto arguments = create_list_from_array_like(global_object, vm.argument(1));
if (vm.exception())
return {};
auto* new_target = target;

2
Userland/Libraries/LibJS/Tests/builtins/Reflect/Reflect.apply.js
View file

@ -18,7 +18,7 @@ describe("errors", () => {
[null, undefined, "foo", 123, NaN, Infinity].forEach(value => {
expect(() => {
Reflect.apply(() => {}, undefined, value);
}).toThrowWithMessage(TypeError, "Arguments list must be an object");
}).toThrowWithMessage(TypeError, `${value} is not an object`);
});
});
});

2
Userland/Libraries/LibJS/Tests/builtins/Reflect/Reflect.construct.js
View file

@ -18,7 +18,7 @@ describe("errors", () => {
[null, undefined, "foo", 123, NaN, Infinity].forEach(value => {
expect(() => {
Reflect.construct(() => {}, value);
}).toThrowWithMessage(TypeError, "Arguments list must be an object");
}).toThrowWithMessage(TypeError, `${value} is not an object`);
});
});