// Copyright (C) 2017 Caio Lima. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- desc: Object Spread properties being overriden template: default esid: pending info: | Pending Runtime Semantics: PropertyDefinitionEvaluation PropertyDefinition:...AssignmentExpression 1. Let exprValue be the result of evaluating AssignmentExpression. 2. Let fromValue be GetValue(exprValue). 3. ReturnIfAbrupt(fromValue). 4. Let excludedNames be a new empty List. 5. Return CopyDataProperties(object, fromValue, excludedNames). features: [Symbol, object-spread] ---*/ //- setup let o = {a: 2, b: 3, c: 4, e: undefined, f: null, g: false}; //- args {...o, a: 1, b: 7, d: 5, h: -0, i: Symbol("foo"), j: o} //- params obj //- body assert.sameValue(obj.a, 1); assert.sameValue(obj.b, 7); assert.sameValue(obj.c, 4); assert.sameValue(obj.d, 5); assert(obj.hasOwnProperty("e")); assert.sameValue(obj.f, null); assert.sameValue(obj.g, false); assert.sameValue(obj.h, -0); assert.sameValue(obj.i.toString(), "Symbol(foo)"); assert(Object.is(obj.j, o)); assert.sameValue(Object.keys(obj).length, 10);