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 --- .../instanceof-bound-function-recursion.js | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 js/src/tests/non262/operators/instanceof-bound-function-recursion.js (limited to 'js/src/tests/non262/operators/instanceof-bound-function-recursion.js') diff --git a/js/src/tests/non262/operators/instanceof-bound-function-recursion.js b/js/src/tests/non262/operators/instanceof-bound-function-recursion.js new file mode 100644 index 0000000000..133b84f2f9 --- /dev/null +++ b/js/src/tests/non262/operators/instanceof-bound-function-recursion.js @@ -0,0 +1,23 @@ +function f() {} + +var fn = f; +for (var i = 0; i < 100000; ++i) { + fn = fn.bind(); + + // Ensure we don't fallback to @@hasInstance from %FunctionPrototype%. + Object.defineProperty(fn, Symbol.hasInstance, { + value: undefined, writable: true, enumerable: true, writable: true + }); + + // Prevent generating overlong names of the form "bound bound bound [...] f". + Object.defineProperty(fn, "name", { + value: "", writable: true, enumerable: true, writable: true + }); +} + +assertThrowsInstanceOf( + () => ({}) instanceof fn, + Error, + "detect runaway recursion delegating instanceof to bound function target"); + +reportCompare(0, 0); -- cgit v1.2.3