RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 01:37:36 +00:00
Code Issues Activity Actions

LibJS: Use create_list_from_array_like() in Function.prototype.apply()

Browse source
This commit is contained in:
Linus Groh 2021-06-09 23:28:59 +01:00
parent f932da095e
commit b639bf64f2
2 changed files with 2 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

1
Userland/Libraries/LibJS/Runtime/ErrorTypes.h
View file

@ -25,7 +25,6 @@
M(DescChangeNonConfigurable, "Cannot change attributes of non-configurable property '{}'") \
M(DescWriteNonWritable, "Cannot write to non-writable property '{}'") \
M(DivisionByZero, "Division by zero") \
M(FunctionArgsNotObject, "Argument array must be an object") \
M(GetCapabilitiesExecutorCalledMultipleTimes, "GetCapabilitiesExecutor was called multiple times") \
M(InOperatorWithObject, "'in' operator must be used on an object") \
M(InstanceOfOperatorBadPrototype, "'prototype' property of {} is not an object") \

15
Userland/Libraries/LibJS/Runtime/FunctionPrototype.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2020, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -56,20 +56,9 @@ JS_DEFINE_NATIVE_FUNCTION(FunctionPrototype::apply)
auto arg_array = vm.argument(1);
if (arg_array.is_nullish())
return vm.call(function, this_arg);
if (!arg_array.is_object()) {
vm.throw_exception<TypeError>(global_object, ErrorType::FunctionArgsNotObject);
return {};
}
auto length = length_of_array_like(global_object, arg_array.as_object());
auto arguments = create_list_from_array_like(global_object, arg_array);
if (vm.exception())
return {};
MarkedValueList arguments(vm.heap());
for (size_t i = 0; i < length; ++i) {
auto element = arg_array.as_object().get(i);
if (vm.exception())
return {};
arguments.append(element.value_or(js_undefined()));
}
return vm.call(function, this_arg, move(arguments));
}