diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/for-of/iterator-close-non-throw-get-method-non-callable.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-of/iterator-close-non-throw-get-method-non-callable.js | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-of/iterator-close-non-throw-get-method-non-callable.js b/js/src/tests/test262/language/statements/for-of/iterator-close-non-throw-get-method-non-callable.js new file mode 100644 index 0000000000..f7715d3135 --- /dev/null +++ b/js/src/tests/test262/language/statements/for-of/iterator-close-non-throw-get-method-non-callable.js @@ -0,0 +1,49 @@ +// Copyright (C) 2020 Alexey Shvayka. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-iteratorclose +description: > + If retrieving an iterator's `return` method generates an error while + closing the iterator with non-throw completion, the error should be + forwarded to the runtime. +info: | + IteratorClose ( iteratorRecord, completion ) + + [...] + 4. Let innerResult be GetMethod(iterator, "return"). + 5. If innerResult.[[Type]] is normal, + [...] + 6. If completion.[[Type]] is throw, return Completion(completion). + 7. If innerResult.[[Type]] is throw, return Completion(innerResult). + + GetMethod ( V, P ) + + [...] + 2. Let func be ? GetV(V, P). + 3. If func is either undefined or null, return undefined. + 4. If IsCallable(func) is false, throw a TypeError exception. +features: [Symbol.iterator] +---*/ + +var iterable = {}; +var iterationCount = 0; + +iterable[Symbol.iterator] = function() { + return { + next: function() { + return { done: false, value: null }; + }, + return: 1, + }; +}; + +assert.throws(TypeError, function() { + for (var x of iterable) { + iterationCount += 1; + break; + } +}); + +assert.sameValue(iterationCount, 1, 'The loop body is evaluated'); + +reportCompare(0, 0); |