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LibJS: Add initial implementation for SharedArrayBuffer

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None of the actual sharing is implemented yet, but this is enough for
most basic functionality.

Diff Tests:
    +260 ✅    -262 ❌   +2 💀
This commit is contained in:
Shannon Booth 2023-07-01 16:07:26 +12:00 • committed by Linus Groh
commit 3781948f0c
Notes: sideshowbarker 2024-07-17 05:02:35 +09:00
13 changed files with 347 additions and 0 deletions
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Userland/Libraries/LibJS/Runtime/ArrayBuffer.h
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@ -104,6 +104,7 @@ ThrowCompletionOr<ArrayBuffer*> allocate_array_buffer(VM&, FunctionObject& const
ThrowCompletionOr<void> detach_array_buffer(VM&, ArrayBuffer& array_buffer, Optional<Value> key = {});
ThrowCompletionOr<ArrayBuffer*> clone_array_buffer(VM&, ArrayBuffer& source_buffer, size_t source_byte_offset, size_t source_length);
ThrowCompletionOr<ArrayBuffer*> array_buffer_copy_and_detach(VM&, ArrayBuffer& array_buffer, Value new_length, PreserveResizability preserve_resizability);
ThrowCompletionOr<NonnullGCPtr<ArrayBuffer>> allocate_shared_array_buffer(VM&, FunctionObject& constructor, size_t byte_length);
// 25.1.2.9 RawBytesToNumeric ( type, rawBytes, isLittleEndian ), https://tc39.es/ecma262/#sec-rawbytestonumeric
template<typename T>