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- 'use strict';
- var $TypeError = require('es-errors/type');
- 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 (/* 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 (Type(result) !== 'Object') {
- return result;
- }
- }
- }
- throw new $TypeError('No primitive value for ' + inspect(O));
- };
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