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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
function ID(x) {
return x;
}
(function TestMethodComputedNameString() {
var object = {
a() { return 'A'},
['b']() { return 'B'; },
c() { return 'C'; },
[ID('d')]() { return 'D'; },
};
assertEquals('A', object.a());
assertEquals('B', object.b());
assertEquals('C', object.c());
assertEquals('D', object.d());
assertArrayEquals(['a', 'b', 'c', 'd'], Object.keys(object));
})();
(function TestMethodComputedNameNumber() {
var object = {
a() { return 'A'; },
[1]() { return 'B'; },
c() { return 'C'; },
[ID(2)]() { return 'D'; },
};
assertEquals('A', object.a());
assertEquals('B', object[1]());
assertEquals('C', object.c());
assertEquals('D', object[2]());
// Array indexes first.
assertArrayEquals(['1', '2', 'a', 'c'], Object.keys(object));
})();
(function TestMethodComputedNameSymbol() {
var sym1 = Symbol();
var sym2 = Symbol();
var object = {
a() { return 'A'; },
[sym1]() { return 'B'; },
c() { return 'C'; },
[ID(sym2)]() { return 'D'; },
};
assertEquals('A', object.a());
assertEquals('B', object[sym1]());
assertEquals('C', object.c());
assertEquals('D', object[sym2]());
assertArrayEquals(['a', 'c'], Object.keys(object));
assertArrayEquals([sym1, sym2], Object.getOwnPropertySymbols(object));
})();
function assertIteratorResult(value, done, result) {
assertEquals({ value: value, done: done}, result);
}
(function TestGeneratorComputedName() {
var object = {
*['a']() {
yield 1;
yield 2;
}
};
var iter = object.a();
assertIteratorResult(1, false, iter.next());
assertIteratorResult(2, false, iter.next());
assertIteratorResult(undefined, true, iter.next());
assertArrayEquals(['a'], Object.keys(object));
})();
(function TestToNameSideEffects() {
var counter = 0;
var key1 = {
toString: function() {
assertEquals(0, counter++);
return 'b';
}
};
var key2 = {
toString: function() {
assertEquals(1, counter++);
return 'd';
}
};
var object = {
a() { return 'A'; },
[key1]() { return 'B'; },
c() { return 'C'; },
[key2]() { return 'D'; },
};
assertEquals(2, counter);
assertEquals('A', object.a());
assertEquals('B', object.b());
assertEquals('C', object.c());
assertEquals('D', object.d());
assertArrayEquals(['a', 'b', 'c', 'd'], Object.keys(object));
})();
(function TestDuplicateKeys() {
'use strict';
// ES5 does not allow duplicate keys.
// ES6 does but we haven't changed our code yet.
var object = {
a() { return 1; },
['a']() { return 2; },
};
assertEquals(2, object.a());
})();
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