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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
commit2aa4a82499d4becd2284cdb482213d541b8804dd (patch)
treeb80bf8bf13c3766139fbacc530efd0dd9d54394c /js/src/tests/test262/language/expressions/yield/star-rhs-iter-thrw-res-done-err.js
parentInitial commit. (diff)
downloadfirefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz
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Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/js/src/tests/test262/language/expressions/yield/star-rhs-iter-thrw-res-done-err.js b/js/src/tests/test262/language/expressions/yield/star-rhs-iter-thrw-res-done-err.js
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+++ b/js/src/tests/test262/language/expressions/yield/star-rhs-iter-thrw-res-done-err.js
@@ -0,0 +1,68 @@
+// 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: >
+ Abrupt completion returned when accessing `done` property of iteration result
+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
+ [...]
+ b. Else if received.[[Type]] is throw, then
+ i. Let throw be ? GetMethod(iterator, "throw").
+ ii. If throw is not undefined, then
+ 1. Let innerResult be ? Call(throw, iterator, « received.[[Value]]
+ »).
+ 2. NOTE: Exceptions from the inner iterator throw method are
+ propagated. Normal completions from an inner throw method are
+ processed similarly to an inner next.
+ 3. If Type(innerResult) is not Object, throw a TypeError exception.
+ 4. Let done be ? IteratorComplete(innerResult).
+
+ 7.4.3 IteratorComplete
+
+ 1. Assert: Type(iterResult) is Object.
+ 2. Return ToBoolean(? Get(iterResult, "done")).
+features: [generators, Symbol.iterator]
+---*/
+
+var thrown = new Test262Error();
+var badIter = {};
+var poisonedDone = Object.defineProperty({}, 'done', {
+ get: function() {
+ throw thrown;
+ }
+});
+badIter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { done: false };
+ },
+ throw: function() {
+ return poisonedDone;
+ }
+ };
+};
+function* g() {
+ try {
+ yield * badIter;
+ } catch (err) {
+ caught = err;
+ }
+}
+var iter = g();
+var caught;
+
+iter.next();
+iter.throw();
+
+assert.sameValue(caught, thrown);
+
+reportCompare(0, 0);