1 files changed, 52 insertions, 0 deletions
diff --git a/frontend-old/node_modules/@protobufjs/aspromise/index.js b/frontend-old/node_modules/@protobufjs/aspromise/index.js
new file mode 100644
index 0000000..b10f826
--- /dev/null
+++ b/frontend-old/node_modules/@protobufjs/aspromise/index.js
@@ -0,0 +1,52 @@
+"use strict";
+module.exports = asPromise;
+
+/**
+ * Callback as used by {@link util.asPromise}.
+ * @typedef asPromiseCallback
+ * @type {function}
+ * @param {Error|null} error Error, if any
+ * @param {...*} params Additional arguments
+ * @returns {undefined}
+ */
+
+/**
+ * Returns a promise from a node-style callback function.
+ * @memberof util
+ * @param {asPromiseCallback} fn Function to call
+ * @param {*} ctx Function context
+ * @param {...*} params Function arguments
+ * @returns {Promise<*>} Promisified function
+ */
+function asPromise(fn, ctx/*, varargs */) {
+    var params  = new Array(arguments.length - 1),
+        offset  = 0,
+        index   = 2,
+        pending = true;
+    while (index < arguments.length)
+        params[offset++] = arguments[index++];
+    return new Promise(function executor(resolve, reject) {
+        params[offset] = function callback(err/*, varargs */) {
+            if (pending) {
+                pending = false;
+                if (err)
+                    reject(err);
+                else {
+                    var params = new Array(arguments.length - 1),
+                        offset = 0;
+                    while (offset < params.length)
+                        params[offset++] = arguments[offset];
+                    resolve.apply(null, params);
+                }
+            }
+        };
+        try {
+            fn.apply(ctx || null, params);
+        } catch (err) {
+            if (pending) {
+                pending = false;
+                reject(err);
+            }
+        }
+    });
+}