void
ArrayBufferObject::changeContents(JSContext *cx, void *newData)
{
// Change buffer contents.
uint8_t* oldDataPointer = dataPointer();
setNewOwnedData(cx->runtime()->defaultFreeOp(), newData);
// Update all views.
ArrayBufferViewObject *viewListHead = viewList();
for (ArrayBufferViewObject *view = viewListHead; view; view = view->nextView()) {
// Watch out for NULL data pointers in views. This means that the view
// is not fully initialized (in which case it'll be initialized later
// with the correct pointer).
uint8_t *viewDataPointer = view->dataPointer();
if (viewDataPointer) {
JS_ASSERT(newData);
ptrdiff_t offset = viewDataPointer - oldDataPointer;
viewDataPointer = static_cast<uint8_t *>(newData) + offset;
view->setPrivate(viewDataPointer);
}
// Notify compiled jit code that the base pointer has moved.
MarkObjectStateChange(cx, view);
}
}
void
ArrayBufferObject::changeContents(JSContext *cx, void *newData)
{
JS_ASSERT(!isAsmJSArrayBuffer());
JS_ASSERT(!isSharedArrayBuffer());
// Update all views.
ArrayBufferViewObject *viewListHead = viewList();
for (ArrayBufferViewObject *view = viewListHead; view; view = view->nextView()) {
// Watch out for NULL data pointers in views. This either
// means that the view is not fully initialized (in which case
// it'll be initialized later with the correct pointer) or
// that the view has been neutered. In that case, the buffer
// is "en route" to being neutered but the isNeuteredBuffer()
// flag may not yet be set.
uint8_t *viewDataPointer = view->dataPointer();
if (viewDataPointer) {
JS_ASSERT(newData);
viewDataPointer += static_cast<uint8_t *>(newData) - dataPointer();
view->setPrivate(viewDataPointer);
}
// Notify compiled jit code that the base pointer has moved.
MarkObjectStateChange(cx, view);
}
if (ownsData())
releaseData(cx->runtime()->defaultFreeOp());
setDataPointer(static_cast<uint8_t *>(newData), OwnsData);
}
