a1e842164b
Reviewed by Yusuke Suzuki, Addy Osmani, and Julian Descottes. * InteractiveRunner.html: Added. * index.html Added. * resources: Added.
69 lines
1.9 KiB
JavaScript
69 lines
1.9 KiB
JavaScript
// ==========================================
|
|
// Copyright 2013 Twitter, Inc
|
|
// Licensed under The MIT License
|
|
// http://opensource.org/licenses/MIT
|
|
// ==========================================
|
|
|
|
"use strict";
|
|
|
|
define(
|
|
|
|
[
|
|
'./utils',
|
|
'./compose'
|
|
],
|
|
|
|
function (util, compose) {
|
|
|
|
var advice = {
|
|
|
|
around: function(base, wrapped) {
|
|
return function composedAround() {
|
|
// unpacking arguments by hand benchmarked faster
|
|
var i = 0, l = arguments.length, args = new Array(l + 1);
|
|
args[0] = base.bind(this);
|
|
for (; i < l; i++) args[i + 1] = arguments[i];
|
|
|
|
return wrapped.apply(this, args);
|
|
}
|
|
},
|
|
|
|
before: function(base, before) {
|
|
var beforeFn = (typeof before == 'function') ? before : before.obj[before.fnName];
|
|
return function composedBefore() {
|
|
beforeFn.apply(this, arguments);
|
|
return base.apply(this, arguments);
|
|
}
|
|
},
|
|
|
|
after: function(base, after) {
|
|
var afterFn = (typeof after == 'function') ? after : after.obj[after.fnName];
|
|
return function composedAfter() {
|
|
var res = (base.unbound || base).apply(this, arguments);
|
|
afterFn.apply(this, arguments);
|
|
return res;
|
|
}
|
|
},
|
|
|
|
// a mixin that allows other mixins to augment existing functions by adding additional
|
|
// code before, after or around.
|
|
withAdvice: function() {
|
|
['before', 'after', 'around'].forEach(function(m) {
|
|
this[m] = function(method, fn) {
|
|
|
|
compose.unlockProperty(this, method, function() {
|
|
if (typeof this[method] == 'function') {
|
|
return this[method] = advice[m](this[method], fn);
|
|
} else {
|
|
return this[method] = fn;
|
|
}
|
|
});
|
|
|
|
};
|
|
}, this);
|
|
}
|
|
};
|
|
|
|
return advice;
|
|
}
|
|
);
|