Source code
Revision control
Copy as Markdown
Other Tools
// This file was procedurally generated from the following sources:
// - src/spread/obj-spread-order.case
// - src/spread/default/member-expr.template
/*---
description: Spread operation follows [[OwnPropertyKeys]] order (`new` operator)
esid: sec-new-operator-runtime-semantics-evaluation
features: [Symbol, object-spread]
flags: [generated]
includes: [compareArray.js]
info: |
MemberExpression : new MemberExpression Arguments
1. Return EvaluateNew(MemberExpression, Arguments).
12.3.3.1.1 Runtime Semantics: EvaluateNew
6. If arguments is empty, let argList be an empty List.
7. Else,
a. Let argList be ArgumentListEvaluation of arguments.
[...]
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).
---*/
var calls = [];
var o = { get z() { calls.push('z') }, get a() { calls.push('a') } };
Object.defineProperty(o, 1, { get: () => { calls.push(1) }, enumerable: true });
Object.defineProperty(o, Symbol('foo'), { get: () => { calls.push("Symbol(foo)") }, enumerable: true });
var callCount = 0;
new function(obj) {
assert.compareArray(calls, [1, 'z', 'a', "Symbol(foo)"]);
assert.sameValue(Object.keys(obj).length, 3);
callCount += 1;
}({...o});
assert.sameValue(callCount, 1);
reportCompare(0, 0);