arguments-object-attributes.js (1263B)
1 // Copyright (C) 2013 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 es6id: 25.2 5 description: > 6 Attributes of the `arguments` object are valid yield expression operands. 7 features: [generators] 8 ---*/ 9 10 function* g() { 11 yield arguments[0]; 12 yield arguments[1]; 13 yield arguments[2]; 14 yield arguments[3]; 15 } 16 var iter = g(23, 45, 33); 17 var result; 18 19 result = iter.next(); 20 assert.sameValue(result.value, 23, 'First result `value`'); 21 assert.sameValue(result.done, false, 'First result `done` flag'); 22 23 result = iter.next(); 24 assert.sameValue(result.value, 45, 'Second result `value`'); 25 assert.sameValue(result.done, false, 'Second result `done` flag'); 26 27 result = iter.next(); 28 assert.sameValue(result.value, 33, 'Third result `value`'); 29 assert.sameValue(result.done, false, 'Third result `done` flag'); 30 31 result = iter.next(); 32 assert.sameValue( 33 result.value, undefined, 'Fourth result `value` (unspecified parameter)' 34 ); 35 assert.sameValue( 36 result.done, false, 'Fourth result `done` flag (unspecified parameter)' 37 ); 38 39 result = iter.next(); 40 assert.sameValue(result.value, undefined, 'Final result `value`'); 41 assert.sameValue(result.done, true, 'Final result `done` flag'); 42 43 reportCompare(0, 0);