From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- js/src/jit-test/tests/for-of/semantics-01.js | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 js/src/jit-test/tests/for-of/semantics-01.js (limited to 'js/src/jit-test/tests/for-of/semantics-01.js') diff --git a/js/src/jit-test/tests/for-of/semantics-01.js b/js/src/jit-test/tests/for-of/semantics-01.js new file mode 100644 index 0000000000..6da9883723 --- /dev/null +++ b/js/src/jit-test/tests/for-of/semantics-01.js @@ -0,0 +1,13 @@ +// for-of is defined in terms of basic operations on objects, particularly +// [[Get]] for properties named "iterator" and "next", and [[Call]]. These +// "semantics" tests check that for-of really does appear to be implemented in +// terms of those more basic operations, as required by the spec, even in +// unusual cases. + +// Deleting Array.prototype.iterator makes for-of stop working on arrays. + +load(libdir + "asserts.js"); +load(libdir + "iteration.js"); + +delete Array.prototype[Symbol.iterator]; +assertThrowsInstanceOf(function () { for (var x of []) ; }, TypeError); -- cgit v1.2.3