* Install an around function; AOP.
(obj, method, fn)
| 68 | */ |
| 69 | |
| 70 | function around (obj, method, fn) { |
| 71 | var old = obj[method] |
| 72 | |
| 73 | obj[method] = function () { |
| 74 | var args = new Array(arguments.length) |
| 75 | for (var i = 0; i < args.length; i++) args[i] = arguments[i] |
| 76 | return fn.call(this, old, args) |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Install a before function; AOP. |