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node_modules/react-native/ReactCommon/react/bridging/Object.h

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+/*
+ * 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 <react/bridging/AString.h>
+#include <react/bridging/Base.h>
+
+#include <map>
+#include <unordered_map>
+
+namespace facebook::react {
+
+template <>
+struct Bridging<jsi::WeakObject> {
+  static jsi::WeakObject fromJs(jsi::Runtime &rt, const jsi::Object &value)
+  {
+    return jsi::WeakObject(rt, value);
+  }
+
+  static jsi::Value toJs(jsi::Runtime &rt, jsi::WeakObject &value)
+  {
+    return value.lock(rt);
+  }
+};
+
+template <typename T>
+struct Bridging<std::shared_ptr<T>, std::enable_if_t<std::is_base_of_v<jsi::HostObject, T>>> {
+  static std::shared_ptr<T> fromJs(jsi::Runtime &rt, const jsi::Object &value)
+  {
+    return value.getHostObject<T>(rt);
+  }
+
+  static jsi::Object toJs(jsi::Runtime &rt, std::shared_ptr<T> value)
+  {
+    return jsi::Object::createFromHostObject(rt, std::move(value));
+  }
+};
+
+namespace map_detail {
+
+template <typename T>
+struct Bridging {
+  static T fromJs(jsi::Runtime &rt, const jsi::Object &value, const std::shared_ptr<CallInvoker> &jsInvoker)
+  {
+    T result;
+    auto propertyNames = value.getPropertyNames(rt);
+    auto length = propertyNames.length(rt);
+
+    for (size_t i = 0; i < length; i++) {
+      auto propertyName = propertyNames.getValueAtIndex(rt, i);
+
+      result.emplace(
+          bridging::fromJs<std::string>(rt, propertyName, jsInvoker),
+          bridging::fromJs<typename T::mapped_type>(rt, value.getProperty(rt, propertyName.asString(rt)), jsInvoker));
+    }
+
+    return result;
+  }
+
+  static jsi::Object toJs(jsi::Runtime &rt, const T &map, const std::shared_ptr<CallInvoker> &jsInvoker)
+  {
+    auto resultObject = jsi::Object(rt);
+
+    for (const auto &[key, value] : map) {
+      resultObject.setProperty(rt, jsi::PropNameID::forUtf8(rt, key), bridging::toJs(rt, value, jsInvoker));
+    }
+
+    return resultObject;
+  }
+};
+
+} // namespace map_detail
+
+template <typename... Args>
+struct Bridging<std::map<std::string, Args...>> : map_detail::Bridging<std::map<std::string, Args...>> {};
+
+template <typename... Args>
+struct Bridging<std::unordered_map<std::string, Args...>>
+    : map_detail::Bridging<std::unordered_map<std::string, Args...>> {};
+
+} // namespace facebook::react