diff options
Diffstat (limited to 'dom/promise/PromiseCallback.h')
| -rw-r--r-- | dom/promise/PromiseCallback.h | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/dom/promise/PromiseCallback.h b/dom/promise/PromiseCallback.h deleted file mode 100644 index 9f55e03d0..000000000 --- a/dom/promise/PromiseCallback.h +++ /dev/null @@ -1,203 +0,0 @@ -/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/* vim: set ts=8 sts=2 et sw=2 tw=80: */ -/* 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_dom_PromiseCallback_h -#define mozilla_dom_PromiseCallback_h - -#include "mozilla/dom/Promise.h" -#include "nsCycleCollectionParticipant.h" - -namespace mozilla { -namespace dom { - -#ifndef SPIDERMONKEY_PROMISE -// This is the base class for any PromiseCallback. -// It's a logical step in the promise chain of callbacks. -class PromiseCallback : public nsISupports -{ -protected: - virtual ~PromiseCallback(); - -public: - NS_DECL_CYCLE_COLLECTING_ISUPPORTS - NS_DECL_CYCLE_COLLECTION_CLASS(PromiseCallback) - - PromiseCallback(); - - virtual nsresult Call(JSContext* aCx, - JS::Handle<JS::Value> aValue) = 0; - - // Return the Promise that this callback will end up resolving or - // rejecting, if any. - virtual Promise* GetDependentPromise() = 0; - - enum Task { - Resolve, - Reject - }; - - // This factory returns a PromiseCallback object with refcount of 0. - static PromiseCallback* - Factory(Promise* aNextPromise, JS::Handle<JSObject*> aObject, - AnyCallback* aCallback, Task aTask); -}; - -// WrapperPromiseCallback execs a JS Callback with a value, and then the return -// value is sent to either: -// a) If aNextPromise is non-null, the aNextPromise->ResolveFunction() or to -// aNextPromise->RejectFunction() if the JS Callback throws. -// or -// b) If aNextPromise is null, in which case aResolveFunc and aRejectFunc must -// be non-null, then to aResolveFunc, unless aCallback threw, in which case -// aRejectFunc. -class WrapperPromiseCallback final : public PromiseCallback -{ -public: - NS_DECL_ISUPPORTS_INHERITED - NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(WrapperPromiseCallback, - PromiseCallback) - - nsresult Call(JSContext* aCx, - JS::Handle<JS::Value> aValue) override; - - Promise* GetDependentPromise() override; - - // Constructor for when we know we have a vanilla Promise. - WrapperPromiseCallback(Promise* aNextPromise, JS::Handle<JSObject*> aGlobal, - AnyCallback* aCallback); - - // Constructor for when all we have to work with are resolve/reject functions. - WrapperPromiseCallback(JS::Handle<JSObject*> aGlobal, - AnyCallback* aCallback, - JS::Handle<JSObject*> mNextPromiseObj, - AnyCallback* aResolveFunc, - AnyCallback* aRejectFunc); - -private: - ~WrapperPromiseCallback(); - - // Either mNextPromise is non-null or all three of mNextPromiseObj, - // mResolveFund and mRejectFunc must are non-null. - RefPtr<Promise> mNextPromise; - // mNextPromiseObj is the reflector itself; it may not be in the - // same compartment as anything else we have. - JS::Heap<JSObject*> mNextPromiseObj; - RefPtr<AnyCallback> mResolveFunc; - RefPtr<AnyCallback> mRejectFunc; - JS::Heap<JSObject*> mGlobal; - RefPtr<AnyCallback> mCallback; -}; - -// ResolvePromiseCallback calls aPromise->ResolveFunction() with the value -// received by Call(). -class ResolvePromiseCallback final : public PromiseCallback -{ -public: - NS_DECL_ISUPPORTS_INHERITED - NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(ResolvePromiseCallback, - PromiseCallback) - - nsresult Call(JSContext* aCx, - JS::Handle<JS::Value> aValue) override; - - Promise* GetDependentPromise() override - { - return mPromise; - } - - ResolvePromiseCallback(Promise* aPromise, JS::Handle<JSObject*> aGlobal); - -private: - ~ResolvePromiseCallback(); - - RefPtr<Promise> mPromise; - JS::Heap<JSObject*> mGlobal; -}; - -// RejectPromiseCallback calls aPromise->RejectFunction() with the value -// received by Call(). -class RejectPromiseCallback final : public PromiseCallback -{ -public: - NS_DECL_ISUPPORTS_INHERITED - NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(RejectPromiseCallback, - PromiseCallback) - - nsresult Call(JSContext* aCx, - JS::Handle<JS::Value> aValue) override; - - Promise* GetDependentPromise() override - { - return mPromise; - } - - RejectPromiseCallback(Promise* aPromise, JS::Handle<JSObject*> aGlobal); - -private: - ~RejectPromiseCallback(); - - RefPtr<Promise> mPromise; - JS::Heap<JSObject*> mGlobal; -}; - -// InvokePromiseFuncCallback calls the given function with the value -// received by Call(). -class InvokePromiseFuncCallback final : public PromiseCallback -{ -public: - NS_DECL_ISUPPORTS_INHERITED - NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(InvokePromiseFuncCallback, - PromiseCallback) - - nsresult Call(JSContext* aCx, - JS::Handle<JS::Value> aValue) override; - - Promise* GetDependentPromise() override; - - InvokePromiseFuncCallback(JS::Handle<JSObject*> aGlobal, - JS::Handle<JSObject*> aNextPromiseObj, - AnyCallback* aPromiseFunc); - -private: - ~InvokePromiseFuncCallback(); - - JS::Heap<JSObject*> mGlobal; - JS::Heap<JSObject*> mNextPromiseObj; - RefPtr<AnyCallback> mPromiseFunc; -}; - -// NativePromiseCallback wraps a PromiseNativeHandler. -class NativePromiseCallback final : public PromiseCallback -{ -public: - NS_DECL_ISUPPORTS_INHERITED - NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(NativePromiseCallback, - PromiseCallback) - - nsresult Call(JSContext* aCx, - JS::Handle<JS::Value> aValue) override; - - Promise* GetDependentPromise() override - { - return nullptr; - } - - NativePromiseCallback(PromiseNativeHandler* aHandler, - Promise::PromiseState aState); - -private: - ~NativePromiseCallback(); - - RefPtr<PromiseNativeHandler> mHandler; - Promise::PromiseState mState; -}; - -#endif // SPIDERMONKEY_PROMISE - -} // namespace dom -} // namespace mozilla - -#endif // mozilla_dom_PromiseCallback_h |