Nickolay - Joose-3.013

Documentation | Source
Joose.Managed.Property.MethodModifier = new Joose.Proto.Class('Joose.Managed.Property.MethodModifier', {
    
    isa : Joose.Managed.Property,

    
    prepareWrapper : function () {
        throw "Abstract method [prepareWrapper] of " + this + " was called"
    },
    
    
    apply : function (target) {
        var name            = this.name
        var targetProto     = target.prototype
        var isOwn           = targetProto.hasOwnProperty(name)
        var original        = targetProto[name]
        var superProto      = target.meta.superClass.prototype
        
        
        var originalCall = isOwn ? original : function () { 
            return superProto[name].apply(this, arguments) 
        }
        
        var methodWrapper = this.prepareWrapper({
            name            : name,
            modifier        : this.value, 
            
            isOwn           : isOwn,
            originalCall    : originalCall, 
            
            superProto      : superProto,
            
            target          : target
        })
        
        if (isOwn) methodWrapper._original = original
        methodWrapper._contain = this.value
        
        targetProto[name] = methodWrapper
    },
    
    
    isAppliedTo : function (target) {
        var targetCont = target.prototype[this.name]
        
        return targetCont && targetCont._contain == this.value
    },
    
    
    unapply : function (from) {
        var name = this.name
        var fromProto = from.prototype
        var original = fromProto[name]._original
        
        if (!this.isAppliedTo(from)) throw "Unapply of method [" + name + "] from class [" + from + "] failed"
        
        //if modifier was applied to own method - restore it
        if (original) 
            fromProto[name] = original
        //otherwise - just delete it, to reveal the inherited method 
        else
            delete fromProto[name]
    }
    
}).c