Galerie und tage

2021-11-23 17:56:26 +01:00
parent ff35366279
commit 5f873bee89
4693 changed files with 149659 additions and 301447 deletions
--- a/node_modules/wrap-fn/index.js
+++ b/node_modules/wrap-fn/index.js
@@ -0,0 +1,125 @@
+/**
+ * Module Dependencies
+ */
+
+var noop = function(){};
+var co = require('co');
+
+/**
+ * Export `wrap-fn`
+ */
+
+module.exports = wrap;
+
+/**
+ * Wrap a function to support
+ * sync, async, and gen functions.
+ *
+ * @param {Function} fn
+ * @param {Function} done
+ * @return {Function}
+ * @api public
+ */
+
+function wrap(fn, done) {
+  done = once(done || noop);
+
+  return function() {
+    // prevents arguments leakage
+    // see https://github.com/petkaantonov/bluebird/wiki/Optimization-killers#3-managing-arguments
+    var i = arguments.length;
+    var args = new Array(i);
+    while (i--) args[i] = arguments[i];
+
+    var ctx = this;
+
+    // done
+    if (!fn) {
+      return done.apply(ctx, [null].concat(args));
+    }
+
+    // async
+    if (fn.length > args.length) {
+      // NOTE: this only handles uncaught synchronous errors
+      try {
+        return fn.apply(ctx, args.concat(done));
+      } catch (e) {
+        return done(e);
+      }
+    }
+
+    // generator
+    if (generator(fn)) {
+      return co(fn).apply(ctx, args.concat(done));
+    }
+
+    // sync
+    return sync(fn, done).apply(ctx, args);
+  }
+}
+
+/**
+ * Wrap a synchronous function execution.
+ *
+ * @param {Function} fn
+ * @param {Function} done
+ * @return {Function}
+ * @api private
+ */
+
+function sync(fn, done) {
+  return function () {
+    var ret;
+
+    try {
+      ret = fn.apply(this, arguments);
+    } catch (err) {
+      return done(err);
+    }
+
+    if (promise(ret)) {
+      ret.then(function (value) { done(null, value); }, done);
+    } else {
+      ret instanceof Error ? done(ret) : done(null, ret);
+    }
+  }
+}
+
+/**
+ * Is `value` a generator?
+ *
+ * @param {Mixed} value
+ * @return {Boolean}
+ * @api private
+ */
+
+function generator(value) {
+  return value
+    && value.constructor
+    && 'GeneratorFunction' == value.constructor.name;
+}
+
+
+/**
+ * Is `value` a promise?
+ *
+ * @param {Mixed} value
+ * @return {Boolean}
+ * @api private
+ */
+
+function promise(value) {
+  return value && 'function' == typeof value.then;
+}
+
+/**
+ * Once
+ */
+
+function once(fn) {
+  return function() {
+    var ret = fn.apply(this, arguments);
+    fn = noop;
+    return ret;
+  };
+}