ceph/src/civetweb/src/third_party/duktape-1.5.2/polyfills/object-assign.js

   1 /*
   2  *  Object.assign(), described in E6 Section 19.1.2.1
   3  *
   4  *  http://www.ecma-international.org/ecma-262/6.0/index.html#sec-object.assign
   5  */
   6
   7 if (typeof Object.assign === 'undefined') {
   8    Object.defineProperty(Object, 'assign', {
   9        value: function (target) {
  10            var i, n, j, m, k;
  11            var source, keys;
  12            var gotError;
  13            var pendingError;
  14
  15            if (target == null) {
  16                throw new Exception('target null or undefined');
  17            }
  18
  19            for (i = 1, n = arguments.length; i < n; i++) {
  20                source = arguments[i];
  21                if (source == null) {
  22                    continue;  // null or undefined
  23                }
  24                source = Object(source);
  25                keys = Object.keys(source);  // enumerable own keys
  26
  27                for (j = 0, m = keys.length; j < m; j++) {
  28                    k = keys[j];
  29                    try {
  30                        target[k] = source[k];
  31                    } catch (e) {
  32                        if (!gotError) {
  33                            gotError = true;
  34                            pendingError = e;
  35                        }
  36                    }
  37                }
  38            }
  39
  40            if (gotError) {
  41                throw pendingError;
  42            }
  43        }, writable: true, enumerable: false, configurable: true
  44    });
  45 }