mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Ramanpreet Nara
4c998fd05d
Summary: ## Motivation The concept behind JSCallInvoker doesn't necessarily have to apply only to the JS thread. On Android, we need to re-use this abstraction to allow execution of async method calls on the NativeModules thread. Reviewed By: PeteTheHeat Differential Revision: D17377313 fbshipit-source-id: 3d9075cbfce0b908d800a366947cfd16a3013d1c
109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <cassert>
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#include <string>
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#include <folly/Optional.h>
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#include <jsi/jsi.h>
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#include <ReactCommon/CallInvoker.h>
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#include <ReactCommon/LongLivedObject.h>
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using namespace facebook;
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namespace facebook {
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namespace react {
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jsi::Object deepCopyJSIObject(jsi::Runtime &rt, const jsi::Object &obj);
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jsi::Array deepCopyJSIArray(jsi::Runtime &rt, const jsi::Array &arr);
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struct Promise : public LongLivedObject {
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Promise(jsi::Runtime &rt, jsi::Function resolve, jsi::Function reject);
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void resolve(const jsi::Value &result);
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void reject(const std::string &error);
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jsi::Runtime &runtime_;
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jsi::Function resolve_;
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jsi::Function reject_;
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};
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using PromiseSetupFunctionType =
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std::function<void(jsi::Runtime &rt, std::shared_ptr<Promise>)>;
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jsi::Value createPromiseAsJSIValue(
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jsi::Runtime &rt,
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const PromiseSetupFunctionType func);
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// Helper for passing jsi::Function arg to other methods.
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// TODO (ramanpreet): Simplify with weak_ptr<>
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class CallbackWrapper : public LongLivedObject {
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private:
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struct Data {
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Data(
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jsi::Function callback,
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jsi::Runtime &runtime,
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std::shared_ptr<react::CallInvoker> jsInvoker)
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: callback(std::move(callback)),
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runtime(runtime),
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jsInvoker(std::move(jsInvoker)) {}
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jsi::Function callback;
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jsi::Runtime &runtime;
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std::shared_ptr<react::CallInvoker> jsInvoker;
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};
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folly::Optional<Data> data_;
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public:
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static std::weak_ptr<CallbackWrapper> createWeak(
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jsi::Function callback,
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jsi::Runtime &runtime,
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std::shared_ptr<react::CallInvoker> jsInvoker) {
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auto wrapper = std::make_shared<CallbackWrapper>(
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std::move(callback), runtime, jsInvoker);
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LongLivedObjectCollection::get().add(wrapper);
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return wrapper;
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}
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CallbackWrapper(
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jsi::Function callback,
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jsi::Runtime &runtime,
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std::shared_ptr<react::CallInvoker> jsInvoker)
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: data_(Data{std::move(callback), runtime, jsInvoker}) {}
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// Delete the enclosed jsi::Function
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void destroy() {
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data_ = folly::none;
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allowRelease();
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}
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bool isDestroyed() {
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return !data_.hasValue();
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}
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jsi::Function &callback() {
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assert(!isDestroyed());
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return data_->callback;
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}
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jsi::Runtime &runtime() {
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assert(!isDestroyed());
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return data_->runtime;
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}
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react::CallInvoker &jsInvoker() {
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assert(!isDestroyed());
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return *(data_->jsInvoker);
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}
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};
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} // namespace react
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} // namespace facebook
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