text: /*
   * Copyright (c) Facebook, Inc. and its affiliates.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  #pragma once
  
  #include <string>
  #include <unordered_set>
  
  #include <ReactCommon/TurboModule.h>
  #include <ReactCommon/TurboModuleUtils.h>
  #include <fb/fbjni.h>
  #include <jsi/jsi.h>
  #include <react/jni/JCallback.h>
  
  namespace facebook {
  namespace react {
  
  struct JNIArgs {
    JNIArgs(size_t count) : args_(count) {}
    std::vector<jvalue> args_;
    std::vector<jobject> globalRefs_;
  };
  
  struct JTurboModule : jni::JavaClass<JTurboModule> {
    static auto constexpr kJavaDescriptor =
        "Lcom/facebook/react/turbomodule/core/interfaces/TurboModule;";
  };
  
  class JSI_EXPORT JavaTurboModule : public TurboModule {
   public:
    JavaTurboModule(
        const std::string &name,
        jni::alias_ref<JTurboModule> instance,
        std::shared_ptr<CallInvoker> jsInvoker,
        std::shared_ptr<CallInvoker> nativeInvoker);
    jsi::Value invokeJavaMethod(
        jsi::Runtime &runtime,
        TurboModuleMethodValueKind valueKind,
        const std::string &methodName,
        const std::string &methodSignature,
        const jsi::Value *args,
        size_t argCount);
  
    /**
     * This dtor must be called from the JS Thread, since it accesses
     * callbackWrappers_, which createJavaCallbackFromJSIFunction also accesses
     * from the JS Thread.
     */
    virtual ~JavaTurboModule();
  
   private:
    jni::global_ref<JTurboModule> instance_;
    std::unordered_set<std::shared_ptr<CallbackWrapper>> callbackWrappers_;
    std::shared_ptr<CallInvoker> nativeInvoker_;
  
    /**
     * This method must be called from the JS Thread, since it accesses
     * callbackWrappers_.
     */
    jni::local_ref<JCxxCallbackImpl::JavaPart> createJavaCallbackFromJSIFunction(
        jsi::Function &function,
        jsi::Runtime &rt,
        std::shared_ptr<CallInvoker> jsInvoker);
    JNIArgs convertJSIArgsToJNIArgs(
        JNIEnv *env,
        jsi::Runtime &rt,
        std::string methodName,
        std::vector<std::string> methodArgTypes,
        const jsi::Value *args,
        size_t count,
        std::shared_ptr<CallInvoker> jsInvoker,
        TurboModuleMethodValueKind valueKind);
  };
  
  } // namespace react
  } // namespace facebook
  