feat: init

node_modules/unctx/dist/index.mjs

@@ -0,0 +1,131 @@
+function createContext(opts = {}) {
+  let currentInstance;
+  let isSingleton = false;
+  const checkConflict = (instance) => {
+    if (currentInstance && currentInstance !== instance) {
+      throw new Error("Context conflict");
+    }
+  };
+  let als;
+  if (opts.asyncContext) {
+    const _AsyncLocalStorage = opts.AsyncLocalStorage || globalThis.AsyncLocalStorage;
+    if (_AsyncLocalStorage) {
+      als = new _AsyncLocalStorage();
+    } else {
+      console.warn("[unctx] `AsyncLocalStorage` is not provided.");
+    }
+  }
+  const _getCurrentInstance = () => {
+    if (als) {
+      const instance = als.getStore();
+      if (instance !== void 0) {
+        return instance;
+      }
+    }
+    return currentInstance;
+  };
+  return {
+    use: () => {
+      const _instance = _getCurrentInstance();
+      if (_instance === void 0) {
+        throw new Error("Context is not available");
+      }
+      return _instance;
+    },
+    tryUse: () => {
+      return _getCurrentInstance();
+    },
+    set: (instance, replace) => {
+      if (!replace) {
+        checkConflict(instance);
+      }
+      currentInstance = instance;
+      isSingleton = true;
+    },
+    unset: () => {
+      currentInstance = void 0;
+      isSingleton = false;
+    },
+    call: (instance, callback) => {
+      checkConflict(instance);
+      currentInstance = instance;
+      try {
+        return als ? als.run(instance, callback) : callback();
+      } finally {
+        if (!isSingleton) {
+          currentInstance = void 0;
+        }
+      }
+    },
+    async callAsync(instance, callback) {
+      currentInstance = instance;
+      const onRestore = () => {
+        currentInstance = instance;
+      };
+      const onLeave = () => currentInstance === instance ? onRestore : void 0;
+      asyncHandlers.add(onLeave);
+      try {
+        const r = als ? als.run(instance, callback) : callback();
+        if (!isSingleton) {
+          currentInstance = void 0;
+        }
+        return await r;
+      } finally {
+        asyncHandlers.delete(onLeave);
+      }
+    }
+  };
+}
+function createNamespace(defaultOpts = {}) {
+  const contexts = {};
+  return {
+    get(key, opts = {}) {
+      if (!contexts[key]) {
+        contexts[key] = createContext({ ...defaultOpts, ...opts });
+      }
+      return contexts[key];
+    }
+  };
+}
+const _globalThis = typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : typeof global !== "undefined" ? global : typeof window !== "undefined" ? window : {};
+const globalKey = "__unctx__";
+const defaultNamespace = _globalThis[globalKey] || (_globalThis[globalKey] = createNamespace());
+const getContext = (key, opts = {}) => defaultNamespace.get(key, opts);
+const useContext = (key, opts = {}) => getContext(key, opts).use;
+const asyncHandlersKey = "__unctx_async_handlers__";
+const asyncHandlers = _globalThis[asyncHandlersKey] || (_globalThis[asyncHandlersKey] = /* @__PURE__ */ new Set());
+function executeAsync(function_) {
+  const restores = [];
+  for (const leaveHandler of asyncHandlers) {
+    const restore2 = leaveHandler();
+    if (restore2) {
+      restores.push(restore2);
+    }
+  }
+  const restore = () => {
+    for (const restore2 of restores) {
+      restore2();
+    }
+  };
+  let awaitable = function_();
+  if (awaitable && typeof awaitable === "object" && "catch" in awaitable) {
+    awaitable = awaitable.catch((error) => {
+      restore();
+      throw error;
+    });
+  }
+  return [awaitable, restore];
+}
+function withAsyncContext(function_, transformed) {
+  if (!transformed) {
+    console.warn(
+      "[unctx] `withAsyncContext` needs transformation for async context support in",
+      function_,
+      "\n",
+      function_.toString()
+    );
+  }
+  return function_;
+}
+
+export { createContext, createNamespace, defaultNamespace, executeAsync, getContext, useContext, withAsyncContext };