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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /js/src/jit-test/tests/basic/for-in-densified-elements.js
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/basic/for-in-densified-elements.js')
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diff --git a/js/src/jit-test/tests/basic/for-in-densified-elements.js b/js/src/jit-test/tests/basic/for-in-densified-elements.js
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+function test() {
+ // An array with sparse elements...
+ var arr = [];
+ arr[10_000] = 1;
+ arr[10_001] = 1;
+
+ for (var prop in arr) {
+ assertEq(prop, "10000");
+ assertEq(arr.length, 10_002);
+
+ // Densify the elements.
+ for (var i = 0; i < arr.length; i++) {
+ arr[i] = 1;
+ }
+
+ // Delete the last dense element (10001). It should not be visited by the
+ // active for-in (checked above).
+ arr.length = 10_001;
+ }
+}
+test();