1 files changed, 46 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/esnext.async-iterator.reduce.js b/node_modules/core-js/modules/esnext.async-iterator.reduce.js
new file mode 100644
index 0000000..e5f7f9a
--- /dev/null
+++ b/node_modules/core-js/modules/esnext.async-iterator.reduce.js
@@ -0,0 +1,46 @@
+'use strict';
+// https://github.com/tc39/proposal-iterator-helpers
+var $ = require('../internals/export');
+var aFunction = require('../internals/a-function');
+var anObject = require('../internals/an-object');
+var getBuiltIn = require('../internals/get-built-in');
+
+var Promise = getBuiltIn('Promise');
+
+$({ target: 'AsyncIterator', proto: true, real: true }, {
+  reduce: function reduce(reducer /* , initialValue */) {
+    var iterator = anObject(this);
+    var next = aFunction(iterator.next);
+    var noInitial = arguments.length < 2;
+    var accumulator = noInitial ? undefined : arguments[1];
+    aFunction(reducer);
+
+    return new Promise(function (resolve, reject) {
+      var loop = function () {
+        try {
+          Promise.resolve(anObject(next.call(iterator))).then(function (step) {
+            try {
+              if (anObject(step).done) {
+                noInitial ? reject(TypeError('Reduce of empty iterator with no initial value')) : resolve(accumulator);
+              } else {
+                var value = step.value;
+                if (noInitial) {
+                  noInitial = false;
+                  accumulator = value;
+                  loop();
+                } else {
+                  Promise.resolve(reducer(accumulator, value)).then(function (result) {
+                    accumulator = result;
+                    loop();
+                  }, reject);
+                }
+              }
+            } catch (err) { reject(err); }
+          }, reject);
+        } catch (error) { reject(error); }
+      };
+
+      loop();
+    });
+  }
+});