You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.0 KiB
38 lines
1.0 KiB
'use strict'; |
|
|
|
var GetIntrinsic = require('get-intrinsic'); |
|
|
|
var $TypeError = GetIntrinsic('%TypeError%'); |
|
|
|
var Call = require('./Call'); |
|
var Get = require('./Get'); |
|
var IsCallable = require('./IsCallable'); |
|
var Type = require('./Type'); |
|
|
|
var inspect = require('object-inspect'); |
|
|
|
// https://262.ecma-international.org/8.0/#sec-ordinarytoprimitive |
|
|
|
module.exports = function OrdinaryToPrimitive(O, hint) { |
|
if (Type(O) !== 'Object') { |
|
throw new $TypeError('Assertion failed: Type(O) is not Object'); |
|
} |
|
if (/* Type(hint) !== 'String' || */ hint !== 'string' && hint !== 'number') { |
|
throw new $TypeError('Assertion failed: `hint` must be "string" or "number"'); |
|
} |
|
|
|
var methodNames = hint === 'string' ? ['toString', 'valueOf'] : ['valueOf', 'toString']; |
|
|
|
for (var i = 0; i < methodNames.length; i += 1) { |
|
var name = methodNames[i]; |
|
var method = Get(O, name); |
|
if (IsCallable(method)) { |
|
var result = Call(method, O); |
|
if (Type(result) !== 'Object') { |
|
return result; |
|
} |
|
} |
|
} |
|
|
|
throw new $TypeError('No primitive value for ' + inspect(O)); |
|
};
|
|
|