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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/derivedConstructorArrowEvalEscapeUninitialized.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/derivedConstructorArrowEvalEscapeUninitialized.js')
-rw-r--r-- | js/src/tests/non262/class/derivedConstructorArrowEvalEscapeUninitialized.js | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/tests/non262/class/derivedConstructorArrowEvalEscapeUninitialized.js b/js/src/tests/non262/class/derivedConstructorArrowEvalEscapeUninitialized.js new file mode 100644 index 0000000000..970beb0436 --- /dev/null +++ b/js/src/tests/non262/class/derivedConstructorArrowEvalEscapeUninitialized.js @@ -0,0 +1,38 @@ +let superArrow; +let thisArrow; + +let thisStash; + +class base { + constructor() { + // We run this constructor twice as part of the double init check + if (!thisStash) + thisStash = {prop:45}; + return thisStash; + } +} + +class foo extends base { + constructor() { + superArrow = (()=>super()); + thisArrow = ()=>this; + } +} + +// Populate the arrow function saves. Since we never invoke super(), we throw +assertThrowsInstanceOf(()=>new foo(), ReferenceError); + +// No |this| binding in the closure, yet +assertThrowsInstanceOf(thisArrow, ReferenceError); + +// call super() +superArrow(); + +// Can't call it twice +assertThrowsInstanceOf(superArrow, ReferenceError); + +// Oh look, |this| is populated, now. +assertEq(thisArrow(), thisStash); + +if (typeof reportCompare === 'function') + reportCompare(0,0,"OK"); |