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LibJS: Implement Atomics.and

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Timothy Flynn 2021-07-11 14:10:43 -04:00 • committed by Linus Groh
parent 940875c9fd
commit 2d3af5c1b4
4 changed files with 91 additions and 0 deletions
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19
Userland/Libraries/LibJS/Runtime/AtomicsObject.cpp
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@ -118,6 +118,7 @@ void AtomicsObject::initialize(GlobalObject& global_object)
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.add, add, 3, attr);
define_native_function(vm.names.and_, and_, 3, attr);
define_native_function(vm.names.load, load, 2, attr);
// 25.4.15 Atomics [ @@toStringTag ], https://tc39.es/ecma262/#sec-atomics-@@tostringtag
@ -142,6 +143,24 @@ JS_DEFINE_NATIVE_FUNCTION(AtomicsObject::add)
VERIFY_NOT_REACHED();
}
// 25.4.4 Atomics.and ( typedArray, index, value ), https://tc39.es/ecma262/#sec-atomics.and
JS_DEFINE_NATIVE_FUNCTION(AtomicsObject::and_)
{
auto* typed_array = typed_array_from(global_object, vm.argument(0));
if (!typed_array)
return {};
auto atomic_and = [](auto* storage, auto value) { return AK::atomic_fetch_and(storage, value); };
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, Type) \
if (is<ClassName>(typed_array)) \
return perform_atomic_operation<Type>(global_object, *typed_array, move(atomic_and));
JS_ENUMERATE_TYPED_ARRAYS
#undef __JS_ENUMERATE
VERIFY_NOT_REACHED();
}
// 25.4.8 Atomics.load ( typedArray, index ), https://tc39.es/ecma262/#sec-atomics.load
JS_DEFINE_NATIVE_FUNCTION(AtomicsObject::load)
{