From 46e43f4bde4a35785b4997b81e86cd19f046b69b Mon Sep 17 00:00:00 2001 From: Minteck Date: Tue, 21 Dec 2021 16:52:28 +0100 Subject: Commit --- src/node_modules/es-to-primitive/es5.js | 45 +++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 src/node_modules/es-to-primitive/es5.js (limited to 'src/node_modules/es-to-primitive/es5.js') diff --git a/src/node_modules/es-to-primitive/es5.js b/src/node_modules/es-to-primitive/es5.js new file mode 100644 index 0000000..602aa36 --- /dev/null +++ b/src/node_modules/es-to-primitive/es5.js @@ -0,0 +1,45 @@ +'use strict'; + +var toStr = Object.prototype.toString; + +var isPrimitive = require('./helpers/isPrimitive'); + +var isCallable = require('is-callable'); + +// 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) { + var methods = actualHint === String ? ['toString', 'valueOf'] : ['valueOf', 'toString']; + var value, i; + for (i = 0; i < methods.length; ++i) { + if (isCallable(O[methods[i]])) { + value = O[methods[i]](); + if (isPrimitive(value)) { + return value; + } + } + } + throw new TypeError('No default value'); + } + throw new TypeError('invalid [[DefaultValue]] hint supplied'); + } +}; + +// 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) { + return ES5internalSlots['[[DefaultValue]]'](input, arguments[1]); + } + return ES5internalSlots['[[DefaultValue]]'](input); +}; -- cgit