SharedPointer.js: sync with other projects

see medooze/media-server-node#261 and the fixups in master afterwards

lib/SharedPointer.js

@@ -42,7 +42,7 @@ class Handler
 
 
 /**
- * @template {{ get(): U }} T
+ * @template {{ get(): any }} T
  * @typedef {T & ReturnType<T['get']>} Proxy
  *
  * objects returned by {@link SharedPointer} are proxies that
@@ -52,16 +52,19 @@ class Handler
  */
 
 /**
- * @template {{ get(): U }} T
+ * @template {{ get(): any }} T
  * @returns {Proxy<T>}
  */
 function SharedPointer(
  /** @type {T} */ obj,
- /** @type {Map<Object, Proxy>} */ cache)
+ /** @type {Map<Object, Proxy<any>>} */ cache)
 {
+ //If what we get passed is already a proxy, return it unchanged
+ if (obj[SharedPointer.Target])
+ return obj;
  //If we already have a proxy for that object
  if (cache && cache.has(obj))
- //Return 
+ //Return
  return cache.get(obj)
  //Create new proxy
  const proxy = new Proxy(obj, new Handler());
@@ -75,6 +78,17 @@ function SharedPointer(
 SharedPointer.Target = Symbol("target");
 SharedPointer.Pointer = Symbol("pointer");
 
+/**
+ * @template {{ get(): any }} T
+ * @param {Proxy<T>} ptr
+ * @returns {T}
+ */
+SharedPointer.getPointer = function (ptr)
+{
+ return ptr[SharedPointer.Pointer];
+}
+
+
 
 SharedPointer.wrapNativeModule = function (module)
 {
@@ -86,9 +100,3 @@ SharedPointer.wrapNativeModule = function (module)
 }
 
 module.exports = SharedPointer;
-
-
-
-
-
-