38 lines
1020 B
JavaScript
38 lines
1020 B
JavaScript
'use strict';
|
|
|
|
var $TypeError = require('es-errors/type');
|
|
|
|
var Call = require('./Call');
|
|
var Get = require('./Get');
|
|
var IsCallable = require('./IsCallable');
|
|
|
|
var isObject = require('../helpers/isObject');
|
|
|
|
var inspect = require('object-inspect');
|
|
|
|
// https://262.ecma-international.org/8.0/#sec-ordinarytoprimitive
|
|
|
|
module.exports = function OrdinaryToPrimitive(O, hint) {
|
|
if (!isObject(O)) {
|
|
throw new $TypeError('Assertion failed: Type(O) is not Object');
|
|
}
|
|
if (/* typeof 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 (!isObject(result)) {
|
|
return result;
|
|
}
|
|
}
|
|
}
|
|
|
|
throw new $TypeError('No primitive value for ' + inspect(O));
|
|
};
|