cacert-testmgr/external/ZendFramework-1.9.5/externals/dojo/dojox/lang/oo/aop.js
Markus Warg 8398c9048d initially import ZendFramework-1.9.5 into repository
code was modified slightly, so the code differs from the original downloadable 1.9.5 version
2010-03-31 10:12:32 +02:00

74 lines
1.8 KiB
JavaScript

dojo.provide("dojox.lang.oo.aop");
dojo.require("dojox.lang.oo.Decorator");
dojo.require("dojox.lang.oo.chain");
dojo.require("dojox.lang.oo.general");
(function(){
var oo = dojox.lang.oo, md = oo.makeDecorator, ooa = oo.aop;
// five decorators implementing light-weight AOP weaving
/*=====
ooa.before = md(function(name, newValue, oldValue){
// summary: creates a "before" advise, by calling new function
// before the old one
// dummy body
});
ooa.around = md(function(name, newValue, oldValue){
// summary: creates an "around" advise,
// the previous value is passed as a first argument and can be null,
// arguments are passed as a second argument
// dummy body
});
=====*/
// reuse existing decorators
ooa.before = oo.chain.before;
ooa.around = oo.general.wrap;
ooa.afterReturning = md(function(name, newValue, oldValue){
// summary: creates an "afterReturning" advise,
// the returned value is passed as the only argument
return dojo.isFunction(oldValue) ?
function(){
var ret = oldValue.apply(this, arguments);
newValue.call(this, ret);
return ret;
} : function(){ newValue.call(this); };
});
ooa.afterThrowing = md(function(name, newValue, oldValue){
// summary: creates an "afterThrowing" advise,
// the exception is passed as the only argument
return dojo.isFunction(oldValue) ?
function(){
var ret;
try{
ret = oldValue.apply(this, arguments);
}catch(e){
newValue.call(this, e);
throw e;
}
return ret;
} : oldValue;
});
ooa.after = md(function(name, newValue, oldValue){
// summary: creates an "after" advise,
// it takes no arguments
return dojo.isFunction(oldValue) ?
function(){
var ret;
try{
ret = oldValue.apply(this, arguments);
}finally{
newValue.call(this);
}
return ret;
} : function(){ newValue.call(this); }
});
})();