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LibJS: Add Object.{keys,values,entries}()

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mattco98 2020-04-29 18:59:23 -07:00 • committed by Andreas Kling
parent 36a5e0be4b
commit 683a0696f3
7 changed files with 250 additions and 0 deletions
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39
Libraries/LibJS/Runtime/ObjectConstructor.cpp
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@ -47,6 +47,9 @@ ObjectConstructor::ObjectConstructor()
put_native_function("getOwnPropertyNames", get_own_property_names, 1, attr);
put_native_function("getPrototypeOf", get_prototype_of, 1, attr);
put_native_function("setPrototypeOf", set_prototype_of, 2, attr);
put_native_function("keys", keys, 1, attr);
put_native_function("values", values, 1, attr);
put_native_function("entries", entries, 1, attr);
}
ObjectConstructor::~ObjectConstructor()
@ -165,4 +168,40 @@ Value ObjectConstructor::is(Interpreter& interpreter)
return typed_eq(interpreter, value1, value2);
}
Value ObjectConstructor::keys(Interpreter& interpreter)
{
if (!interpreter.argument_count())
return interpreter.throw_exception<TypeError>("Can't convert undefined to object");
auto* obj_arg = interpreter.argument(0).to_object(interpreter.heap());
if (interpreter.exception())
return {};
return obj_arg->get_enumerable_own_properties(*obj_arg, GetOwnPropertyMode::Key);
}
Value ObjectConstructor::values(Interpreter& interpreter)
{
if (!interpreter.argument_count())
return interpreter.throw_exception<TypeError>("Can't convert undefined to object");
auto* obj_arg = interpreter.argument(0).to_object(interpreter.heap());
if (interpreter.exception())
return {};
return obj_arg->get_enumerable_own_properties(*obj_arg, GetOwnPropertyMode::Value);
}
Value ObjectConstructor::entries(Interpreter& interpreter)
{
if (!interpreter.argument_count())
return interpreter.throw_exception<TypeError>("Can't convert undefined to object");
auto* obj_arg = interpreter.argument(0).to_object(interpreter.heap());
if (interpreter.exception())
return {};
return obj_arg->get_enumerable_own_properties(*obj_arg, GetOwnPropertyMode::KeyAndValue);
}
}