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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/language/expressions/yield/star-rhs-iter-rtrn-res-value-final.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/language/expressions/yield/star-rhs-iter-rtrn-res-value-final.js')
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diff --git a/js/src/tests/test262/language/expressions/yield/star-rhs-iter-rtrn-res-value-final.js b/js/src/tests/test262/language/expressions/yield/star-rhs-iter-rtrn-res-value-final.js
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+++ b/js/src/tests/test262/language/expressions/yield/star-rhs-iter-rtrn-res-value-final.js
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+// 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 `return` 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
+ [...]
+ b. Else if received.[[Type]] is throw, then
+ [...]
+ c. Else,
+ i. Assert: received.[[Type]] is return.
+ ii. Let return be ? GetMethod(iterator, "return").
+ iii. If return is undefined, return Completion(received).
+ iv. Let innerReturnResult be ? Call(return, iterator, «
+ received.[[Value]] »).
+ v. If Type(innerReturnResult) is not Object, throw a TypeError
+ exception.
+ vi. Let done be ? IteratorComplete(innerReturnResult).
+ vii. If done is true, then
+ 1. Let value be ? IteratorValue(innerReturnResult).
+ 2. Return Completion{[[Type]]: return, [[Value]]: value,
+ [[Target]]: empty}.
+ viii. Let received be GeneratorYield(innerReturnResult).
+
+features: [generators, Symbol.iterator]
+---*/
+
+var quickIter = {};
+var normalCompletion = false;
+var errorCompletion = false;
+var delegationComplete = false;
+var iter, returnReceived;
+quickIter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { done: false };
+ },
+ return: function(x) {
+ returnReceived = x;
+ return { done: true, value: 3333 };
+ }
+ };
+};
+function* g() {
+ try {
+ yield * quickIter;
+ normalCompletion = true;
+ } catch (e) {
+ errorCompletion = true;
+ } finally {
+ delegationComplete = true;
+ }
+}
+
+iter = g();
+
+iter.next();
+iter.return(2222);
+assert.sameValue(returnReceived, 2222);
+assert.sameValue(delegationComplete, true, 'delegation complete');
+assert.sameValue(normalCompletion, false, 'completion was abrupt');
+assert.sameValue(errorCompletion, false, 'completion was not of type "throw"');
+
+reportCompare(0, 0);