| 'use strict'; |
| |
| var toStr = Object.prototype.toString; |
| |
| var isPrimitive = require('./helpers/isPrimitive'); |
| |
| var isCallable = require('is-callable'); |
| |
| /** @type {{ [k in `[[${string}]]`]: (O: { toString?: unknown, valueOf?: unknown }, actualHint?: StringConstructor | NumberConstructor) => null | undefined | string | symbol | number | boolean | bigint; }} */ |
| // http://ecma-international.org/ecma-262/5.1/#sec-8.12.8 |
| var ES5internalSlots = { |
| '[[DefaultValue]]': function (O) { |
| var actualHint; |
| if (arguments.length > 1) { |
| actualHint = arguments[1]; |
| } else { |
| actualHint = toStr.call(O) === '[object Date]' ? String : Number; |
| } |
| |
| if (actualHint === String || actualHint === Number) { |
| /** @type {('toString' | 'valueOf')[]} */ |
| var methods = actualHint === String ? ['toString', 'valueOf'] : ['valueOf', 'toString']; |
| var value, i; |
| for (i = 0; i < methods.length; ++i) { |
| var method = methods[i]; |
| if (isCallable(O[method])) { |
| // eslint-disable-next-line no-extra-parens |
| value = /** @type {Function} */ (O[method])(); |
| if (isPrimitive(value)) { |
| return value; |
| } |
| } |
| } |
| throw new TypeError('No default value'); |
| } |
| throw new TypeError('invalid [[DefaultValue]] hint supplied'); |
| } |
| }; |
| |
| /** @type {import('./es5')} */ |
| // http://ecma-international.org/ecma-262/5.1/#sec-9.1 |
| module.exports = function ToPrimitive(input) { |
| if (isPrimitive(input)) { |
| return input; |
| } |
| if (arguments.length > 1) { |
| // eslint-disable-next-line no-extra-parens |
| return ES5internalSlots['[[DefaultValue]]'](/** @type {object} */ (input), arguments[1]); |
| } |
| // eslint-disable-next-line no-extra-parens |
| return ES5internalSlots['[[DefaultValue]]'](/** @type {object} */ (input)); |
| }; |