@Specialization(
guards = "object.getShape() == cachedShape",
assumptions = "cachedShape.getValidAssumption()",
limit = "CACHE_LIMIT")
@ExplodeLoop
protected void shareCached(
DynamicObject object,
@Cached("ensureSharedClasses(object.getShape())") Shape cachedShape,
@Cached("createShareInternalFieldsNode()") ShareInternalFieldsNode shareInternalFieldsNode,
@Cached("createReadAndShareFieldNodes(getObjectProperties(cachedShape))")
ReadAndShareFieldNode[] readAndShareFieldNodes,
@Cached("createSharedShape(object)") Shape sharedShape) {
assert !SharedObjects.isShared(cachedShape);
// Mark the object as shared first to avoid recursion
object.setShapeAndGrow(cachedShape, sharedShape);
shareInternalFieldsNode.executeShare(object);
for (ReadAndShareFieldNode readAndShareFieldNode : readAndShareFieldNodes) {
readAndShareFieldNode.executeReadFieldAndShare(object);
}
}
protected static Shape ensureSharedClasses(Shape shape) {
final ObjectType objectType = shape.getObjectType();
SharedObjects.writeBarrier(Layouts.BASIC_OBJECT.getLogicalClass(objectType));
SharedObjects.writeBarrier(Layouts.BASIC_OBJECT.getMetaClass(objectType));
return shape;
}
@Specialization(contains = {"shareCached", "updateShapeAndShare"})
protected void shareUncached(DynamicObject object) {
SharedObjects.writeBarrier(object);
}
