// Copyright (C) 2017 Caio Lima. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- desc: Multiple Object Spread usage calls getter multiple times 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: [object-spread] ---*/ //- setup let getterCallCount = 0; let o = { get a() { return ++getterCallCount; } }; //- args {...o, c: 4, d: 5, a: 42, ...o} //- params obj //- body assert.sameValue(obj.a, 2); assert.sameValue(obj.c, 4); assert.sameValue(obj.d, 5); assert.sameValue(Object.keys(obj).length, 3);