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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /js/src/tests/non262/class/newTargetArrow.js | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/non262/class/newTargetArrow.js')
-rw-r--r-- | js/src/tests/non262/class/newTargetArrow.js | 24 |
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 new file mode 100644 index 0000000000..548f750475 --- /dev/null +++ b/js/src/tests/non262/class/newTargetArrow.js @@ -0,0 +1,24 @@ +// 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"); |