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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/lexical-environment/unscopables-ignored.js | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.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/lexical-environment/unscopables-ignored.js')
-rw-r--r-- | js/src/tests/non262/lexical-environment/unscopables-ignored.js | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/tests/non262/lexical-environment/unscopables-ignored.js b/js/src/tests/non262/lexical-environment/unscopables-ignored.js new file mode 100644 index 0000000000..08b042a3b5 --- /dev/null +++ b/js/src/tests/non262/lexical-environment/unscopables-ignored.js @@ -0,0 +1,22 @@ +// In these cases, @@unscopables should not be consulted. + +// Because obj has no properties `assertEq` or `x`, +// obj[@@unscopables] is not checked here: +var obj = { + get [Symbol.unscopables]() { + throw "tried to read @@unscopables"; + } +}; +var x = 3; +with (obj) + assertEq(x, 3); + +// If @@unscopables is present but not an object, it is ignored: +for (let nonObject of [undefined, null, "nothing", Symbol.for("moon")]) { + let y = 4; + let obj2 = {[Symbol.unscopables]: nonObject, y: 5}; + with (obj2) + assertEq(y, 5); +} + +reportCompare(0, 0); |