From b2cd254c35b6b1b128beea0eacdb8e814d91e003 Mon Sep 17 00:00:00 2001 From: Kenta Moriuchi Date: Thu, 4 Jan 2024 13:12:38 +0900 Subject: fix: strict type check for cross realms (#21669) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Deno v1.39 introduces `vm.runInNewContext`. This may cause problems when using `Object.prototype.isPrototypeOf` to check built-in types. ```js import vm from "node:vm"; const err = new Error(); const crossErr = vm.runInNewContext(`new Error()`); console.assert( !(crossErr instanceof Error) ); console.assert( Object.getPrototypeOf(err) !== Object.getPrototypeOf(crossErr) ); ``` This PR changes to check using internal slots solves them. --- current: ``` > import vm from "node:vm"; undefined > vm.runInNewContext(`new Error("message")`) Error {} > vm.runInNewContext(`new Date("2018-12-10T02:26:59.002Z")`) Date {} ``` this PR: ``` > import vm from "node:vm"; undefined > vm.runInNewContext(`new Error("message")`) Error: message at :1:1 > vm.runInNewContext(`new Date("2018-12-10T02:26:59.002Z")`) 2018-12-10T02:26:59.002Z ``` --------- Co-authored-by: Bartek Iwańczuk --- ext/web/01_dom_exception.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'ext/web/01_dom_exception.js') diff --git a/ext/web/01_dom_exception.js b/ext/web/01_dom_exception.js index 99e917f0f..14cabc286 100644 --- a/ext/web/01_dom_exception.js +++ b/ext/web/01_dom_exception.js @@ -210,4 +210,4 @@ for (let i = 0; i < entries.length; ++i) { ObjectDefineProperty(DOMException.prototype, key, desc); } -export default DOMException; +export { DOMException, DOMExceptionPrototype }; -- cgit v1.2.3