named-yield-identifier-spread-non-strict.js (1628B)
1 // This file was procedurally generated from the following sources: 2 // - src/generators/yield-identifier-spread-non-strict.case 3 // - src/generators/non-strict/expression-named.template 4 /*--- 5 description: Mixed use of object spread and yield as a valid identifier in a function body inside a generator body in non strict mode (Generator named expression - valid for non-strict only cases) 6 esid: prod-GeneratorExpression 7 features: [Symbol, object-spread, generators] 8 flags: [generated, noStrict] 9 info: | 10 14.4 Generator Function Definitions 11 12 GeneratorExpression: 13 function * BindingIdentifier opt ( FormalParameters ) { GeneratorBody } 14 15 16 Spread Properties 17 18 PropertyDefinition[Yield]: 19 (...) 20 ...AssignmentExpression[In, ?Yield] 21 22 ---*/ 23 var s = Symbol('s'); 24 25 var callCount = 0; 26 27 var gen = function *g() { 28 callCount += 1; 29 yield { 30 ...yield yield, 31 ...(function(arg) { 32 var yield = arg; 33 return {...yield}; 34 }(yield)), 35 ...yield, 36 } 37 }; 38 39 var iter = gen(); 40 41 var iter = gen(); 42 43 iter.next(); 44 iter.next(); 45 iter.next({ x: 10, a: 0, b: 0, [s]: 1 }); 46 iter.next({ y: 20, a: 1, b: 1, [s]: 42 }); 47 var item = iter.next({ z: 30, b: 2 }); 48 49 var value = item.value; 50 51 assert.sameValue(item.done, false); 52 assert.sameValue(value.x, 10); 53 assert.sameValue(value.y, 20); 54 assert.sameValue(value.z, 30); 55 assert.sameValue(value.a, 1); 56 assert.sameValue(value.b, 2); 57 assert.sameValue(value[s], 42); 58 assert(Object.prototype.hasOwnProperty.call(value, s), "s is an own property"); 59 assert.sameValue(Object.keys(value).length, 5); 60 61 assert.sameValue(callCount, 1); 62 63 reportCompare(0, 0);