| // Copyright (C) 2018 Valerie Young. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-asyncgenerator-prototype-throw |
| description: next() call while iterator is in state executing |
| info: | |
| AsyncGenerator.prototype.next ( value ) |
| 1. Let generator be the this value. |
| 2. Let completion be NormalCompletion(value). |
| 3. Return ! AsyncGeneratorEnqueue(generator, completion). |
| |
| AsyncGeneratorEnqueue ( generator, completion ) |
| ... |
| 4. Let queue be generator.[[AsyncGeneratorQueue]]. |
| 5. Let request be AsyncGeneratorRequest{[[Completion]]: completion, |
| [[Capability]]: promiseCapability}. |
| 6. Append request to the end of queue. |
| ... |
| |
| AsyncGeneratorResolve ( generator, value, done ) |
| ... |
| 2. Let queue be generator.[[AsyncGeneratorQueue]]. |
| 3. Assert: queue is not an empty List. |
| 4. Remove the first element from queue and let next be the value of that element. |
| ... |
| |
| flags: [async] |
| features: [async-iteration] |
| ---*/ |
| |
| var iter, result; |
| var executionorder = 0; |
| var valueisset = false; |
| |
| async function* g() { |
| |
| iter.next().then( |
| function(result) { |
| assert(valueisset, "variable valueisset should be set to true"); |
| assert.sameValue(++executionorder, 2); |
| assert.sameValue(result.value, 2); |
| assert.sameValue(result.done, false); |
| }, |
| function() { |
| $DONE(new Test262Error("next() should result in resolved promise.")); |
| } |
| ).catch($DONE) |
| |
| valueisset = true; |
| |
| yield 1; |
| yield 2; |
| } |
| |
| iter = g(); |
| |
| iter.next().then(function(result) { |
| assert.sameValue(++executionorder, 1); |
| assert.sameValue(result.value, 1); |
| assert.sameValue(result.done, false); |
| |
| iter.next().then(function(result) { |
| assert.sameValue(++executionorder, 3); |
| assert.sameValue(result.value, undefined); |
| assert.sameValue(result.done, true); |
| }).then($DONE, $DONE); |
| |
| }).catch($DONE); |
| |
| |
| |