mirror of
https://github.com/tc39/test262.git
synced 2025-11-03 21:24:30 +01:00
43 lines
1.4 KiB
JavaScript
43 lines
1.4 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
/*---
|
|
esid: sec-date-value
|
|
es6id: 20.3.2.2
|
|
description: Invocation of `Symbol.toPrimitive` method of object value
|
|
info: |
|
|
3. If NewTarget is not undefined, then
|
|
a. If Type(value) is Object and value has a [[DateValue]] internal slot, then
|
|
i. Let tv be thisTimeValue(value).
|
|
b. Else,
|
|
i. Let v be ? ToPrimitive(value).
|
|
[...]
|
|
|
|
|
|
ToPrimitive ( input [ , PreferredType ] )
|
|
|
|
1. If PreferredType was not passed, let hint be "default".
|
|
2. Else if PreferredType is hint String, let hint be "string".
|
|
3. Else PreferredType is hint Number, let hint be "number".
|
|
4. Let exoticToPrim be ? GetMethod(input, @@toPrimitive).
|
|
5. If exoticToPrim is not undefined, then
|
|
a. Let result be ? Call(exoticToPrim, input, « hint »).
|
|
[...]
|
|
features: [Symbol.toPrimitive]
|
|
---*/
|
|
|
|
var spyToPrimitive = {};
|
|
var callCount = 0;
|
|
var thisValue, args;
|
|
spyToPrimitive[Symbol.toPrimitive] = function() {
|
|
thisValue = this;
|
|
args = arguments;
|
|
callCount += 1;
|
|
};
|
|
|
|
new Date(spyToPrimitive);
|
|
|
|
assert.sameValue(callCount, 1, 'function invoked exactly once');
|
|
assert.sameValue(thisValue, spyToPrimitive, 'function "this" value');
|
|
assert.sameValue(args.length, 1, 'function invoked with exactly one argument');
|
|
assert.sameValue(args[0], 'default', 'argument value');
|