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Diffstat (limited to 'js/src/tests/test262/language/expressions/yield/star-rhs-iter-nrml-res-value-final.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/yield/star-rhs-iter-nrml-res-value-final.js | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/yield/star-rhs-iter-nrml-res-value-final.js b/js/src/tests/test262/language/expressions/yield/star-rhs-iter-nrml-res-value-final.js new file mode 100644 index 0000000000..3068878530 --- /dev/null +++ b/js/src/tests/test262/language/expressions/yield/star-rhs-iter-nrml-res-value-final.js @@ -0,0 +1,64 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-generator-function-definitions-runtime-semantics-evaluation +es6id: 14.4.14 +description: Value received from invocation of generator's `next` method +info: | + YieldExpression : yield * AssignmentExpression + + 1. Let exprRef be the result of evaluating AssignmentExpression. + 2. Let value be ? GetValue(exprRef). + 3. Let iterator be ? GetIterator(value). + 4. Let received be NormalCompletion(undefined). + 5. Repeat + a. If received.[[Type]] is normal, then + i. Let innerResult be ? IteratorNext(iterator, received.[[Value]]). + ii. Let done be ? IteratorComplete(innerResult). + iii. If done is true, then + 1. Return ? IteratorValue(innerResult). + + 7.4.4 IteratorValue + + 1. Assert: Type(iterResult) is Object. + 2. Return ? Get(iterResult, "value"). +features: [generators, Symbol.iterator] +---*/ + +var quickIter = {}; +var exprValue, nextReceived, done, iter; +quickIter[Symbol.iterator] = function() { + return { + next: function(x) { + nextReceived = x; + return { + done: done, + value: 3333 + }; + } + }; +}; +function* g() { + exprValue = yield * quickIter; +} + +done = true; +iter = g(); +iter.next(4444); + +assert.sameValue( + nextReceived, undefined, 'received value (previously-exhausted iterator)' +); +assert.sameValue(exprValue, 3333, 'expression value (previously-exhausted iterator)'); + +done = false; +exprValue = null; +iter = g(); +iter.next(2222); +done = true; +iter.next(5555); + +assert.sameValue(nextReceived, 5555, 'received value'); +assert.sameValue(exprValue, 3333, 'expression value'); + +reportCompare(0, 0); |