test262/test/language/computed-property-names/to-name-side-effects/numbers-class.js

38 lines
942 B
JavaScript

// Copyright (C) Copyright 2014 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 12.2.5
description: >
to name, accessor side effects numbers 2
includes: [compareArray.js]
---*/
var counter = 0;
var key1 = {
valueOf: function() {
assert.sameValue(counter++, 0);
return 1;
},
toString: null
};
var key2 = {
valueOf: function() {
assert.sameValue(counter++, 1);
return 2;
},
toString: null
};
class C {
a() { return 'A'; }
[key1]() { return 'B'; }
c() { return 'C'; }
[key2]() { return 'D'; }
}
assert.sameValue(counter, 2);
assert.sameValue(new C().a(), 'A');
assert.sameValue(new C()[1](), 'B');
assert.sameValue(new C().c(), 'C');
assert.sameValue(new C()[2](), 'D');
assert(compareArray(Object.keys(C.prototype), []));
assert(compareArray(Object.getOwnPropertyNames(C.prototype), ['1', '2', 'constructor', 'a', 'c']));