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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/non262/class/newTargetArrow.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 '')
-rw-r--r--js/src/tests/non262/class/newTargetArrow.js24
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/non262/class/newTargetArrow.js b/js/src/tests/non262/class/newTargetArrow.js
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+++ b/js/src/tests/non262/class/newTargetArrow.js
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+// new.target is valid in any arrow function not in a global context.
+new Function('(() => new.target)()');
+
+// It's also good inside eval, but not global eval
+assertThrowsInstanceOf(() => eval('() => new.target'), SyntaxError);
+
+function assertNewTarget(expected) {
+ assertEq((()=>new.target)(), expected);
+ assertEq(eval('()=>new.target')(), expected);
+
+ // Make sure that arrow functions can escape their original context and
+ // still get the right answer.
+ return (() => new.target);
+}
+
+const ITERATIONS = 550;
+for (let i = 0; i < ITERATIONS; i++)
+ assertEq(assertNewTarget(undefined)(), undefined);
+
+for (let i = 0; i < ITERATIONS; i++)
+ assertEq(new assertNewTarget(assertNewTarget)(), assertNewTarget);
+
+if (typeof reportCompare === 'function')
+ reportCompare(0,0,"OK");