PromiseResolverTask(Promise* aPromise,
JS::Handle<JS::Value> aValue,
Promise::PromiseState aState)
: mPromise(aPromise)
, mValue(aValue)
, mState(aState)
{
MOZ_ASSERT(aPromise);
MOZ_ASSERT(mState != Promise::Pending);
MOZ_COUNT_CTOR(PromiseResolverTask);
JSContext* cx = nsContentUtils::GetSafeJSContext();
/* It's safe to use unsafeGet() here: the unsafeness comes from the
* possibility of updating the value of mJSObject without triggering the
* barriers. However if the value will always be marked, post barriers
* unnecessary. */
JS_AddNamedValueRootRT(JS_GetRuntime(cx), mValue.unsafeGet(),
"PromiseResolverTask.mValue");
}
NS_IMETHODIMP
ArrayBufferInputStream::SetData(const JS::Value& aBuffer,
uint32_t aByteOffset,
uint32_t aLength,
JSContext* aCx)
{
if (!aBuffer.isObject()) {
return NS_ERROR_FAILURE;
}
JS::RootedObject arrayBuffer(aCx, &aBuffer.toObject());
if (!JS_IsArrayBufferObject(arrayBuffer)) {
return NS_ERROR_FAILURE;
}
mRt = JS_GetRuntime(aCx);
mArrayBuffer = aBuffer;
JS_AddNamedValueRootRT(mRt, &mArrayBuffer, "mArrayBuffer");
uint32_t buflen = JS_GetArrayBufferByteLength(arrayBuffer);
mOffset = std::min(buflen, aByteOffset);
mBufferLength = std::min(buflen - mOffset, aLength);
mBuffer = JS_GetArrayBufferData(arrayBuffer);
return NS_OK;
}
