| // 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-isnan-number |
| description: > |
| Return abrupt completion calling number.@@toPrimitive |
| info: | |
| isNaN (number) |
| |
| 1. Let num be ? ToNumber(number). |
| |
| ToPrimitive ( input [ , PreferredType ] ) |
| |
| [...] |
| 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 obj = {}; |
| obj[Symbol.toPrimitive] = function() { |
| throw new Test262Error(); |
| }; |
| |
| assert.throws(Test262Error, function() { |
| isNaN(obj); |
| }); |
