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LibJS: Remove cloneConstructor parameter from CloneArrayBuffer

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This is a normative change in the ECMA-262 spec. See:
e7979fd

Note that this implements a FIXME in InitializeTypedArrayFromTypedArray,
now that shared array buffers are no longer a concern there. We already
have test coverage for the now-handled case.
This commit is contained in:
Timothy Flynn 2022-04-15 11:39:17 -04:00 • committed by Linus Groh
parent 39b308ba52
commit 6654efcd82
4 changed files with 48 additions and 51 deletions
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14
Userland/Libraries/LibJS/Runtime/ArrayBuffer.cpp
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@ -7,6 +7,7 @@
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/ArrayBuffer.h>
#include <LibJS/Runtime/ArrayBufferConstructor.h>
#include <LibJS/Runtime/GlobalObject.h>
namespace JS {
@ -121,16 +122,13 @@ ThrowCompletionOr<Value> detach_array_buffer(GlobalObject& global_object, ArrayB
}
// 25.1.2.4 CloneArrayBuffer ( srcBuffer, srcByteOffset, srcLength, cloneConstructor ), https://tc39.es/ecma262/#sec-clonearraybuffer
ThrowCompletionOr<ArrayBuffer*> clone_array_buffer(GlobalObject& global_object, ArrayBuffer& source_buffer, size_t source_byte_offset, size_t source_length, FunctionObject& clone_constructor)
ThrowCompletionOr<ArrayBuffer*> clone_array_buffer(GlobalObject& global_object, ArrayBuffer& source_buffer, size_t source_byte_offset, size_t source_length)
{
auto& vm = global_object.vm();
// 1. Assert: IsDetachedBuffer(srcBuffer) is false.
VERIFY(!source_buffer.is_detached());
// 1. Let targetBuffer be ? AllocateArrayBuffer(cloneConstructor, srcLength).
auto* target_buffer = TRY(allocate_array_buffer(global_object, clone_constructor, source_length));
// 2. If IsDetachedBuffer(srcBuffer) is true, throw a TypeError exception.
if (source_buffer.is_detached())
return vm.throw_completion<TypeError>(global_object, ErrorType::DetachedArrayBuffer);
// 2. Let targetBuffer be ? AllocateArrayBuffer(%ArrayBuffer%, srcLength).
auto* target_buffer = TRY(allocate_array_buffer(global_object, *global_object.array_buffer_constructor(), source_length));
// 3. Let srcBlock be srcBuffer.[[ArrayBufferData]].
auto& source_block = source_buffer.buffer();