var-env-var-init-local-exstng.js (796B)
1 // Copyright (C) 2016 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 esid: sec-evaldeclarationinstantiation 5 description: Re-declaration of an existing local variable binding has no effect 6 info: | 7 [...] 8 16. For each String vn in declaredVarNames, in list order do 9 a. If varEnvRec is a global Environment Record, then 10 [...] 11 b. Else, 12 i. Let bindingExists be varEnvRec.HasBinding(vn). 13 ii. If bindingExists is false, then 14 [...] 15 [...] 16 flags: [noStrict] 17 ---*/ 18 19 var initial; 20 21 (function() { 22 var x = 44443; 23 eval('initial = x; var x;'); 24 }()); 25 26 assert.sameValue(initial, 44443); 27 assert.throws(ReferenceError, function() { 28 x; 29 }); 30 31 reportCompare(0, 0);