mirror of https://github.com/lukechilds/node.git
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.
31 lines
919 B
31 lines
919 B
'use strict';
|
|
|
|
var copy = require('es5-ext/object/copy')
|
|
, map = require('es5-ext/object/map')
|
|
, callable = require('es5-ext/object/valid-callable')
|
|
, validValue = require('es5-ext/object/valid-value')
|
|
|
|
, bind = Function.prototype.bind, defineProperty = Object.defineProperty
|
|
, hasOwnProperty = Object.prototype.hasOwnProperty
|
|
, define;
|
|
|
|
define = function (name, desc, bindTo) {
|
|
var value = validValue(desc) && callable(desc.value), dgs;
|
|
dgs = copy(desc);
|
|
delete dgs.writable;
|
|
delete dgs.value;
|
|
dgs.get = function () {
|
|
if (hasOwnProperty.call(this, name)) return value;
|
|
desc.value = bind.call(value, (bindTo == null) ? this : this[bindTo]);
|
|
defineProperty(this, name, desc);
|
|
return this[name];
|
|
};
|
|
return dgs;
|
|
};
|
|
|
|
module.exports = function (props/*, bindTo*/) {
|
|
var bindTo = arguments[1];
|
|
return map(props, function (desc, name) {
|
|
return define(name, desc, bindTo);
|
|
});
|
|
};
|
|
|