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Tighten stream helper interface realms

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Basilisk-Dev 2026-05-08 20:57:19 -04:00 • committed by wuggy
commit 8c4ece641e
1 changed files with 25 additions and 13 deletions
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38
js/src/builtin/Stream.cpp
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@ -5157,7 +5157,8 @@ DequeueValue(JSContext* cx, HandleNativeObject container, MutableHandleValue chu
// Step 2: Assert: queue is not empty.
RootedValue val(cx, container->getFixedSlot(QueueContainerSlot_Queue));
RootedNativeObject queue(cx, &val.toObject().as<NativeObject>());
RootedNativeObject queue(cx);
queue = UnwrapInternalSlotObject<NativeObject>(&val.toObject());
MOZ_ASSERT(queue->getDenseInitializedLength() > 0);
// Step 3. Let pair be the first element of queue.
@ -5179,7 +5180,10 @@ DequeueValue(JSContext* cx, HandleNativeObject container, MutableHandleValue chu
container->setFixedSlot(QueueContainerSlot_TotalSize, NumberValue(totalSize));
// Step 7: Return pair.[[value]].
chunk.set(pair->value());
RootedValue chunkVal(cx, pair->value());
if (!JS_WrapValue(cx, &chunkVal))
return false;
chunk.set(chunkVal);
return true;
}
@ -5208,19 +5212,27 @@ EnqueueValueWithSize(JSContext* cx, HandleNativeObject container, HandleValue va
// Step 4: Append Record {[[value]]: value, [[size]]: size} as the last element
// of container.[[queue]].
RootedValue val(cx, container->getFixedSlot(QueueContainerSlot_Queue));
RootedNativeObject queue(cx, &val.toObject().as<NativeObject>());
RootedNativeObject queue(cx);
queue = UnwrapInternalSlotObject<NativeObject>(&val.toObject());
QueueEntry* entry = QueueEntry::create(cx, value, size);
if (!entry)
return false;
val = ObjectValue(*entry);
if (!AppendToList(cx, queue, val))
return false;
{
JSAutoCompartment ac(cx, queue);
RootedValue wrappedValue(cx, value);
if (!JS_WrapValue(cx, &wrappedValue))
return false;
// Step 5: Set container.[[queueTotalSize]] to
// container.[[queueTotalSize]] + size.
double totalSize = container->getFixedSlot(QueueContainerSlot_TotalSize).toNumber();
container->setFixedSlot(QueueContainerSlot_TotalSize, NumberValue(totalSize + size));
QueueEntry* entry = QueueEntry::create(cx, wrappedValue, size);
if (!entry)
return false;
val = ObjectValue(*entry);
if (!AppendToList(cx, queue, val))
return false;
// Step 5: Set container.[[queueTotalSize]] to
// container.[[queueTotalSize]] + size.
double totalSize = container->getFixedSlot(QueueContainerSlot_TotalSize).toNumber();
container->setFixedSlot(QueueContainerSlot_TotalSize, NumberValue(totalSize + size));
}
return true;
}