react-native-windows library

Summary:
This change adds the template for a RNW module to the existing react-native flipper project.

Basically, the changes in this diff are the product of executing the react-native-windows init for the existing library.

See:
https://microsoft.github.io/react-native-windows/docs/getting-started

https://microsoft.github.io/react-native-windows/docs/native-modules-setup

Notes:
There's some auto-generated module code contained in this change: ReactNativeModule (.h/.cpp)

allow-large-files

Reviewed By: passy

Differential Revision: D36751772

fbshipit-source-id: 41207bedb00ea147883f6d13336ed6c1da4454d7

react-native/react-native-flipper/windows/ReactNativeFlipper/ReactNativeModule.h

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and 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 "JSValue.h"
+#include "NativeModules.h"
+
+using namespace winrt::Microsoft::ReactNative;
+
+namespace winrt::ReactNativeFlipper {
+
+REACT_MODULE(ReactNativeModule, L"ReactNativeFlipper")
+struct ReactNativeModule {
+  // See https://microsoft.github.io/react-native-windows/docs/native-modules
+  // for details on writing native modules
+
+  REACT_INIT(Initialize)
+  void Initialize(ReactContext const& reactContext) noexcept {
+    m_reactContext = reactContext;
+  }
+
+  REACT_METHOD(sampleMethod)
+  void sampleMethod(
+      std::string stringArgument,
+      int numberArgument,
+      std::function<void(std::string)>&& callback) noexcept {
+    // TODO: Implement some actually useful functionality
+    callback(
+        "Received numberArgument: " + std::to_string(numberArgument) +
+        " stringArgument: " + stringArgument);
+  }
+
+ private:
+  ReactContext m_reactContext{nullptr};
+};
+
+} // namespace winrt::ReactNativeFlipper