From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- ...splice-delete-non-configurable-during-shrink.js | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 js/src/jit-test/tests/basic/splice-delete-non-configurable-during-shrink.js (limited to 'js/src/jit-test/tests/basic/splice-delete-non-configurable-during-shrink.js') diff --git a/js/src/jit-test/tests/basic/splice-delete-non-configurable-during-shrink.js b/js/src/jit-test/tests/basic/splice-delete-non-configurable-during-shrink.js new file mode 100644 index 0000000000..93dddb5cc6 --- /dev/null +++ b/js/src/jit-test/tests/basic/splice-delete-non-configurable-during-shrink.js @@ -0,0 +1,26 @@ +/* Test that splice causing deletion of a non-configurable property stops at exactly step 12(v) of ES5 15.4.4.12 */ + +var O = [1,2,3,4,5,6]; +var A = undefined; +Object.defineProperty(O, 3, { configurable: false }); + +try +{ + A = O.splice(0, 6); + throw new Error("didn't throw, returned " + A); +} +catch (e) +{ + assertEq(e instanceof TypeError, true, + "deleting O[3] should have caused a TypeError"); +} + +assertEq(O.length, 6); // setting length not reached +assertEq(A, undefined); // return value not reached + +assertEq(O[5], undefined); // deletion reached +assertEq(O[4], undefined); // deletion reached +assertEq(O[3], 4); // deletion caused exception +assertEq(O[2], 3); // deletion not reached +assertEq(O[1], 2); // deletion not reached +assertEq(O[0], 1); // deletion not reached -- cgit v1.2.3