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LibJS: Implement missing checks for SharedArrayBuffer values

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This commit is contained in:
Timothy Flynn 2023-12-28 09:27:42 -05:00 • committed by Andreas Kling
parent 299c86db20
commit 526a74f2f1
6 changed files with 46 additions and 6 deletions
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2
Userland/Libraries/LibJS/Runtime/ArrayBuffer.cpp
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@ -201,7 +201,7 @@ size_t array_buffer_byte_length(ArrayBuffer const& array_buffer, ArrayBuffer::Or
ThrowCompletionOr<void> detach_array_buffer(VM& vm, ArrayBuffer& array_buffer, Optional<Value> key)
{
// 1. Assert: IsSharedArrayBuffer(arrayBuffer) is false.
// FIXME: Check for shared buffer
VERIFY(!array_buffer.is_shared_array_buffer());
// 2. If key is not present, set key to undefined.
if (!key.has_value())

6
Userland/Libraries/LibJS/Runtime/ArrayBufferPrototype.cpp
View file

@ -174,7 +174,8 @@ JS_DEFINE_NATIVE_FUNCTION(ArrayBufferPrototype::slice)
auto array_buffer_object = TRY(typed_this_value(vm));
// 3. If IsSharedArrayBuffer(O) is true, throw a TypeError exception.
// FIXME: Check for shared buffer
if (array_buffer_object->is_shared_array_buffer())
return vm.throw_completion<TypeError>(ErrorType::SharedArrayBuffer);
// 4. If IsDetachedBuffer(O) is true, throw a TypeError exception.
if (array_buffer_object->is_detached())
@ -226,7 +227,8 @@ JS_DEFINE_NATIVE_FUNCTION(ArrayBufferPrototype::slice)
auto* new_array_buffer_object = static_cast<ArrayBuffer*>(new_array_buffer.ptr());
// 18. If IsSharedArrayBuffer(new) is true, throw a TypeError exception.
// FIXME: Check for shared buffer
if (new_array_buffer_object->is_shared_array_buffer())
return vm.throw_completion<TypeError>(ErrorType::SharedArrayBuffer);
// 19. If IsDetachedBuffer(new) is true, throw a TypeError exception.
if (new_array_buffer_object->is_detached())

9
Userland/Libraries/LibJS/Runtime/SharedArrayBufferPrototype.cpp
View file

@ -40,7 +40,8 @@ JS_DEFINE_NATIVE_FUNCTION(SharedArrayBufferPrototype::byte_length_getter)
auto array_buffer_object = TRY(typed_this_value(vm));
// 3. If IsSharedArrayBuffer(O) is false, throw a TypeError exception.
// FIXME: Check for shared buffer
if (!array_buffer_object->is_shared_array_buffer())
return vm.throw_completion<TypeError>(ErrorType::NotASharedArrayBuffer);
// 4. Let length be O.[[ArrayBufferByteLength]].
// 5. Return 𝔽(length).
@ -60,7 +61,8 @@ JS_DEFINE_NATIVE_FUNCTION(SharedArrayBufferPrototype::slice)
auto array_buffer_object = TRY(typed_this_value(vm));
// 3. If IsSharedArrayBuffer(O) is false, throw a TypeError exception.
// FIXME: Check for shared buffer
if (!array_buffer_object->is_shared_array_buffer())
return vm.throw_completion<TypeError>(ErrorType::NotASharedArrayBuffer);
// 4. Let len be O.[[ArrayBufferByteLength]].
auto length = array_buffer_object->byte_length();
@ -108,7 +110,8 @@ JS_DEFINE_NATIVE_FUNCTION(SharedArrayBufferPrototype::slice)
auto* new_array_buffer_object = static_cast<ArrayBuffer*>(new_array_buffer.ptr());
// 17. If IsSharedArrayBuffer(new) is true, throw a TypeError exception.
// FIXME: Check for shared buffer
if (!new_array_buffer_object->is_shared_array_buffer())
return vm.throw_completion<TypeError>(ErrorType::NotASharedArrayBuffer);
// 18. If new.[[ArrayBufferData]] is O.[[ArrayBufferData]], throw a TypeError exception.
if (new_array_buffer == array_buffer_object)