call-in.js (827B)
1 // Copyright (C) 2015 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 es6id: 9.5.7 5 description: > 6 A `in` check trigger trap.call(handler, target, P); 7 info: | 8 [[HasProperty]] (P) 9 10 ... 11 9. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P»)). 12 ... 13 features: [Proxy] 14 ---*/ 15 16 var _handler, _target, _prop; 17 var target = {}; 18 var handler = { 19 has: function(t, prop) { 20 _handler = this; 21 _target = t; 22 _prop = prop; 23 24 return prop in t; 25 } 26 }; 27 var p = new Proxy(target, handler); 28 29 "attr" in p; 30 31 assert.sameValue(_handler, handler, "handler is context"); 32 assert.sameValue(_target, target, "target is the first parameter"); 33 assert.sameValue(_prop, "attr", "given prop is the second paramter"); 34 35 reportCompare(0, 0);