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node_modules/core-js/modules/esnext.async-iterator.drop.js

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+'use strict';
+var $ = require('../internals/export');
+var call = require('../internals/function-call');
+var anObject = require('../internals/an-object');
+var getIteratorDirect = require('../internals/get-iterator-direct');
+var notANaN = require('../internals/not-a-nan');
+var toPositiveInteger = require('../internals/to-positive-integer');
+var createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy');
+var createIterResultObject = require('../internals/create-iter-result-object');
+var IS_PURE = require('../internals/is-pure');
+
+var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise) {
+  var state = this;
+
+  return new Promise(function (resolve, reject) {
+    var doneAndReject = function (error) {
+      state.done = true;
+      reject(error);
+    };
+
+    var loop = function () {
+      try {
+        Promise.resolve(anObject(call(state.next, state.iterator))).then(function (step) {
+          try {
+            if (anObject(step).done) {
+              state.done = true;
+              resolve(createIterResultObject(undefined, true));
+            } else if (state.remaining) {
+              state.remaining--;
+              loop();
+            } else resolve(createIterResultObject(step.value, false));
+          } catch (err) { doneAndReject(err); }
+        }, doneAndReject);
+      } catch (error) { doneAndReject(error); }
+    };
+
+    loop();
+  });
+});
+
+// `AsyncIterator.prototype.drop` method
+// https://github.com/tc39/proposal-async-iterator-helpers
+$({ target: 'AsyncIterator', proto: true, real: true, forced: IS_PURE }, {
+  drop: function drop(limit) {
+    anObject(this);
+    var remaining = toPositiveInteger(notANaN(+limit));
+    return new AsyncIteratorProxy(getIteratorDirect(this), {
+      remaining: remaining
+    });
+  }
+});