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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/lexical-environment/unscopables-getters.js | |
parent | Initial commit. (diff) | |
download | firefox-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/lexical-environment/unscopables-getters.js | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/non262/lexical-environment/unscopables-getters.js b/js/src/tests/non262/lexical-environment/unscopables-getters.js new file mode 100644 index 0000000000..1360787983 --- /dev/null +++ b/js/src/tests/non262/lexical-environment/unscopables-getters.js @@ -0,0 +1,41 @@ +// @@unscopables checks can call getters. + +// The @@unscopables property itself can be a getter. +let hit1 = 0; +let x = "global x"; +let env1 = { + x: "env1.x", + get [Symbol.unscopables]() { + hit1++; + return {x: true}; + } +}; +with (env1) + assertEq(x, "global x"); +assertEq(hit1, 1); + +// It can throw; the exception is propagated out. +function Fit() {} +with ({x: 0, get [Symbol.unscopables]() { throw new Fit; }}) + assertThrowsInstanceOf(() => x, Fit); + +// Individual properties on the @@unscopables object can have getters. +let hit2 = 0; +let env2 = { + x: "env2.x", + [Symbol.unscopables]: { + get x() { + hit2++; + return true; + } + } +}; +with (env2) + assertEq(x, "global x"); +assertEq(hit2, 1); + +// And they can throw. +with ({x: 0, [Symbol.unscopables]: {get x() { throw new Fit; }}}) + assertThrowsInstanceOf(() => x, Fit); + +reportCompare(0, 0); |