144280 2015-04-27 15:01:54 -0700 Class name binding should be constant inside the class body 2015-08-05 21:12:54 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Minor --- 140491 1 arv rniwa joepeck rniwa saam oldest_to_newest 1089213 0 arv 2015-04-27 15:01:54 -0700 http://trac.webkit.org/browser/trunk/LayoutTests/js/script-tests/class-syntax-name.js#L84 runTestShouldThrow("class A { constructor() { A = 1; } }; new A"); This should not throw. ClassDeclarations do not create an inner const binding. Your code seems to be doing the right thing based on the -expexted.txt Another line to add to this test would be: runTestShouldThrow("class A { constructor() { A = 1; } }; new A; new A"); which should throw because in the second call to `new A` A is 1. 1089216 1 arv 2015-04-27 15:05:58 -0700 My bad. The test is right and the JSC behavior is wrong. ng. 1114966 2 rniwa 2015-08-04 21:48:22 -0700 Saam, did your patch to make class declaration block-scoped fix this? 1115267 3 rniwa 2015-08-05 21:12:54 -0700 Yup, this has been fixed by http://trac.webkit.org/changeset/187680