spread-obj-with-overrides.js (1653B)
1 // This file was procedurally generated from the following sources: 2 // - src/spread/obj-with-overrides.case 3 // - src/spread/default/member-expr.template 4 /*--- 5 description: Object Spread properties being overriden (`new` operator) 6 esid: sec-new-operator-runtime-semantics-evaluation 7 features: [Symbol, object-spread] 8 flags: [generated] 9 info: | 10 MemberExpression : new MemberExpression Arguments 11 12 1. Return EvaluateNew(MemberExpression, Arguments). 13 14 12.3.3.1.1 Runtime Semantics: EvaluateNew 15 16 6. If arguments is empty, let argList be an empty List. 17 7. Else, 18 a. Let argList be ArgumentListEvaluation of arguments. 19 [...] 20 21 Pending Runtime Semantics: PropertyDefinitionEvaluation 22 23 PropertyDefinition:...AssignmentExpression 24 25 1. Let exprValue be the result of evaluating AssignmentExpression. 26 2. Let fromValue be GetValue(exprValue). 27 3. ReturnIfAbrupt(fromValue). 28 4. Let excludedNames be a new empty List. 29 5. Return CopyDataProperties(object, fromValue, excludedNames). 30 31 ---*/ 32 let o = {a: 2, b: 3, c: 4, e: undefined, f: null, g: false}; 33 34 35 var callCount = 0; 36 37 new function(obj) { 38 assert.sameValue(obj.a, 1); 39 assert.sameValue(obj.b, 7); 40 assert.sameValue(obj.c, 4); 41 assert.sameValue(obj.d, 5); 42 assert(obj.hasOwnProperty("e")); 43 assert.sameValue(obj.f, null); 44 assert.sameValue(obj.g, false); 45 assert.sameValue(obj.h, -0); 46 assert.sameValue(obj.i.toString(), "Symbol(foo)"); 47 assert(Object.is(obj.j, o)); 48 assert.sameValue(Object.keys(obj).length, 10); 49 callCount += 1; 50 }({...o, a: 1, b: 7, d: 5, h: -0, i: Symbol("foo"), j: o}); 51 52 assert.sameValue(callCount, 1); 53 54 reportCompare(0, 0);