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acc2ed2488
Summary: This is only the core C++ part of TurboModule - moving to github to make integration with existing NativeModules system slightly easier. Other bindings for iOS/Android are not yet ready to move. Notes: * TurboModules is not ready to use at the moment. * Build configuration is not yet provided (cocoapods/.xcodeproj/gradle), just like Fabric. * No effort was done to make this lib C++17 strictly compliant yet (there will be in the future). Reviewed By: RSNara Differential Revision: D13551211 fbshipit-source-id: cd3b458e6746ee9218451962ca65b1ad641a32db
85 lines
2.0 KiB
C++
85 lines
2.0 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 <string>
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#include <unordered_map>
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#include <jsi/jsi.h>
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#include "JSCallInvoker.h"
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namespace facebook {
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namespace react {
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/**
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* For now, support the same set of return types as existing impl.
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* This can be improved to support richer typed objects.
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*/
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enum TurboModuleMethodValueKind {
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VoidKind,
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BooleanKind,
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NumberKind,
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StringKind,
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ObjectKind,
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ArrayKind,
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FunctionKind,
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PromiseKind,
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};
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/**
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* Base HostObject class for every module to be exposed to JS
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*/
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class JSI_EXPORT TurboModule : public facebook::jsi::HostObject {
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public:
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TurboModule(const std::string &name, std::shared_ptr<JSCallInvoker> jsInvoker);
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virtual ~TurboModule();
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/**
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* Instruct this module to invalidate itself.
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*/
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virtual void invalidate();
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virtual facebook::jsi::Value get(facebook::jsi::Runtime& runtime, const facebook::jsi::PropNameID& propName) override;
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/**
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* General method invocation mechanism.
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* Each subclass decides how the invocation should be, and whether it should be platform-specific.
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*/
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virtual jsi::Value invokeMethod(
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jsi::Runtime &runtime,
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TurboModuleMethodValueKind valueKind,
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const std::string &methodName,
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const jsi::Value *args,
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size_t count);
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const std::string name_;
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std::shared_ptr<JSCallInvoker> jsInvoker_;
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protected:
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struct MethodMetadata {
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size_t argCount;
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facebook::jsi::Value (*invoker)(
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facebook::jsi::Runtime& rt,
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TurboModule &turboModule,
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const facebook::jsi::Value* args,
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size_t count);
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};
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std::unordered_map<std::string, MethodMetadata> methodMap_;
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};
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/**
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* An app/platform-specific provider function to get an instance of a module given a name.
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*/
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using TurboModuleProviderFunctionType = std::function<std::shared_ptr<TurboModule>(
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const std::string &name)>;
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} // namespace react
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} // namespace facebook
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