JSObjectMakeArrayBufferWithBytesNoCopy(_:_:_:_:_:_:)
Creates a JavaScript array buffer object from an existing pointer.
Declaration
func JSObjectMakeArrayBufferWithBytesNoCopy(_ ctx: JSContextRef!, _ bytes: UnsafeMutableRawPointer!, _ byteLength: Int, _ bytesDeallocator: JSTypedArrayBytesDeallocator!, _ deallocatorContext: UnsafeMutableRawPointer!, _ exception: UnsafeMutablePointer<JSValueRef?>!) -> JSObjectRef!Parameters
- ctx:
The execution context to use.
- bytes:
A pointer to the byte buffer to use as the backing store of the typed array object.
- byteLength:
The number of bytes that
bytespoints to. - bytesDeallocator:
The allocator to use to deallocate the external buffer when deallocating the typed array object.
- deallocatorContext:
A pointer to pass back to the deallocator.
- exception:
A pointer to a Jsvalueref to store an exception in, if any. Pass
NULLto discard any exception.
Return Value
A JSObjectRef array buffer with a backing store that is the same as the one that bytes points to, or NULL if there is an error.
Discussion
If the system throws an exception during this function, it always calls the bytesDeallocator.