mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-11-04 07:10:57 +00:00
85e313077a
In a subclass of Cell, we cannot use Cell::vm() before the base Cell object itself is constructed. Use the Realm's VM instead. This was caught by UBSAN with vptr sanitation enabled.
75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
/*
|
|
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibJS/Runtime/AbstractOperations.h>
|
|
#include <LibJS/Runtime/Error.h>
|
|
#include <LibJS/Runtime/GlobalObject.h>
|
|
#include <LibJS/Runtime/IteratorOperations.h>
|
|
#include <LibJS/Runtime/Map.h>
|
|
#include <LibJS/Runtime/MapConstructor.h>
|
|
|
|
namespace JS {
|
|
|
|
MapConstructor::MapConstructor(Realm& realm)
|
|
: NativeFunction(realm.vm().names.Map.as_string(), *realm.intrinsics().function_prototype())
|
|
{
|
|
}
|
|
|
|
void MapConstructor::initialize(Realm& realm)
|
|
{
|
|
auto& vm = this->vm();
|
|
NativeFunction::initialize(realm);
|
|
|
|
// 24.1.2.1 Map.prototype, https://tc39.es/ecma262/#sec-map.prototype
|
|
define_direct_property(vm.names.prototype, realm.intrinsics().map_prototype(), 0);
|
|
|
|
define_native_accessor(realm, *vm.well_known_symbol_species(), symbol_species_getter, {}, Attribute::Configurable);
|
|
|
|
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
|
|
}
|
|
|
|
// 24.1.1.1 Map ( [ iterable ] ), https://tc39.es/ecma262/#sec-map-iterable
|
|
ThrowCompletionOr<Value> MapConstructor::call()
|
|
{
|
|
auto& vm = this->vm();
|
|
return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, vm.names.Map);
|
|
}
|
|
|
|
// 24.1.1.1 Map ( [ iterable ] ), https://tc39.es/ecma262/#sec-map-iterable
|
|
ThrowCompletionOr<Object*> MapConstructor::construct(FunctionObject& new_target)
|
|
{
|
|
auto& vm = this->vm();
|
|
|
|
auto* map = TRY(ordinary_create_from_constructor<Map>(vm, new_target, &Intrinsics::map_prototype));
|
|
|
|
if (vm.argument(0).is_nullish())
|
|
return map;
|
|
|
|
auto adder = TRY(map->get(vm.names.set));
|
|
if (!adder.is_function())
|
|
return vm.throw_completion<TypeError>(ErrorType::NotAFunction, "'set' property of Map");
|
|
|
|
(void)TRY(get_iterator_values(vm, vm.argument(0), [&](Value iterator_value) -> Optional<Completion> {
|
|
if (!iterator_value.is_object())
|
|
return vm.throw_completion<TypeError>(ErrorType::NotAnObject, String::formatted("Iterator value {}", iterator_value.to_string_without_side_effects()));
|
|
|
|
auto key = TRY(iterator_value.as_object().get(0));
|
|
auto value = TRY(iterator_value.as_object().get(1));
|
|
TRY(JS::call(vm, adder.as_function(), map, key, value));
|
|
|
|
return {};
|
|
}));
|
|
|
|
return map;
|
|
}
|
|
|
|
// 24.1.2.2 get Map [ @@species ], https://tc39.es/ecma262/#sec-get-map-@@species
|
|
JS_DEFINE_NATIVE_FUNCTION(MapConstructor::symbol_species_getter)
|
|
{
|
|
return vm.this_value();
|
|
}
|
|
|
|
}
|