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Diffstat (limited to 'devtools/shared/heapsnapshot/DominatorTree.h')
-rw-r--r-- | devtools/shared/heapsnapshot/DominatorTree.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/devtools/shared/heapsnapshot/DominatorTree.h b/devtools/shared/heapsnapshot/DominatorTree.h new file mode 100644 index 0000000000..e8e06ee076 --- /dev/null +++ b/devtools/shared/heapsnapshot/DominatorTree.h @@ -0,0 +1,66 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef mozilla_devtools_DominatorTree__ +#define mozilla_devtools_DominatorTree__ + +#include "mozilla/devtools/HeapSnapshot.h" +#include "mozilla/dom/BindingDeclarations.h" +#include "mozilla/RefCounted.h" +#include "js/UbiNodeDominatorTree.h" +#include "nsWrapperCache.h" + +namespace mozilla { +class ErrorResult; + +namespace devtools { + +class DominatorTree final : public nsISupports, public nsWrapperCache { + protected: + nsCOMPtr<nsISupports> mParent; + + virtual ~DominatorTree() {} + + private: + JS::ubi::DominatorTree mDominatorTree; + RefPtr<HeapSnapshot> mHeapSnapshot; + + public: + explicit DominatorTree(JS::ubi::DominatorTree&& aDominatorTree, + HeapSnapshot* aHeapSnapshot, nsISupports* aParent) + : mParent(aParent), + mDominatorTree(std::move(aDominatorTree)), + mHeapSnapshot(aHeapSnapshot) { + MOZ_ASSERT(aParent); + MOZ_ASSERT(aHeapSnapshot); + }; + + NS_DECL_CYCLE_COLLECTING_ISUPPORTS; + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DominatorTree); + + nsISupports* GetParentObject() const { return mParent; } + + virtual JSObject* WrapObject(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) override; + + // readonly attribute NodeId root + uint64_t Root() const { return mDominatorTree.root().identifier(); } + + // [Throws] NodeSize getRetainedSize(NodeId node) + dom::Nullable<uint64_t> GetRetainedSize(uint64_t aNodeId, ErrorResult& aRv); + + // [Throws] sequence<NodeId>? getImmediatelyDominated(NodeId node); + void GetImmediatelyDominated(uint64_t aNodeId, + dom::Nullable<nsTArray<uint64_t>>& aOutDominated, + ErrorResult& aRv); + + // NodeId? getImmediateDominator(NodeId node); + dom::Nullable<uint64_t> GetImmediateDominator(uint64_t aNodeId) const; +}; + +} // namespace devtools +} // namespace mozilla + +#endif // mozilla_devtools_DominatorTree__ |