. NET and Javascript mixed programming series (how to penetrate the boundaries of. NET and JS)

Source: Internet
Author: User

The previous study on how to do CS and JS Mutual transparent access to the idea, after some practice, here to make a small demo.

Here's the first demo class:

    public class Testcsclass    {public        testcsclass ()        {        }        //Overload public        virtual object if overridden Method1 ()        {            Console.WriteLine ("CS call!!");            Return "Hello CS";        }    }

Simple C # code, and then there's an overloaded method Metod1

    [SharpKit.JavaScript.JsType (SHARPKIT.JAVASCRIPT.JSMODE.CLR, Precode = @ "Try{if (typeof (Global). jstypes)! = ' undefined ') {    jstypes = Global. Jstypes;}} catch (e) {} "        )] public    class Testjsclass:testcsclass    {public        string Arg1 {get; set;}        public void Funa (string arg)        {                    } public        Testjsclass ()        {        }    }
This is the class that will generate JS, inherit and Testcsclass, have a unique property, and one more field, and overload a method.

Then there is the proxy JS class, which binds C # objects and has some basic information about inheriting classes

   C # proxy class    namespace proxy    {        //js agent class        [SharpKit.JavaScript.JsType (TargetType = typeof ( Cslibforjs.testcsclass)] public        class Testcsclass        {public            string __basetypename = " Cslibforjs.testcsclass ";            Private object _extobject = null;            Public Testcsclass ()            {               _extobject = Clrhelper.callctor (this);            }            Public virtual Object Method1 ()            {               return clrhelper.callclr (_extobject, "Method1");            }        }            }
Of course this is also C #, or you do not compile the past.

CALLCLR is a reflection call (the performance of what the later again.) )

Let's take a look at the JS code generated by 2 classes:

/* Generated by Sharpkit 5 v5.4.4 */try{if (typeof (Global). jstypes)! = ' undefined ') {jstypes = Global. Jstypes;}} catch (E) {}if (typeof (jstypes) = = "undefined") var jstypes = [];var Cslibforjs$testjsclass = {fullname: "Cslibforj  S.testjsclass ", Basetypename:" Cslibforjs.testcsclass ", AssemblyName:" Cslibforjs ", Kind:" Class ", definition:            {ctor:function () {this._arg1 = null;        CsLibForJS.TestCSClass.ctor.call (this);        }, arg1$$: "System.String", Get_arg1:function () {return this._arg1;        }, Set_arg1:function (value) {this._arg1 = value; }, Funa:function (ARG) {}}};    Jstypes.push (Cslibforjs$testjsclass); var cslibforjs$proxy$testcsclass = {fullname: "CsLibForJS.Proxy.TestCSClass", Basetypename: "System.Object", AssemblyName: "Cslibforjs", Kind: "Class", definition: {ctor:function () {this.__basetypename = "CSLIBFORJS.TESTCSCL";            This._extobject = null;            System.Object.ctor.call (this);        This._extobject = CsLibForJS.ClrHelper.CallCtor (this);        }, Method1:function () {return CSLIBFORJS.CLRHELPER.CALLCLR (This._extobject, "Method1"); }    }}; Jstypes.push (Cslibforjs$proxy$testcsclass);
In order to avoid confusion, the name space of the proxy class is replaced in the jsclr when dealing with the class relationship.

Then we start the first call:

First start with JS:

var csobj = new CsLibForJS.TestCSClass.ctor (), var jsobj =new CsLibForJS.TestJSClass.ctor (); Log ("Jscall"); log (csobj. Method1 ()); log (jsobj. Method1 ());

New out a basic class, new out an inheritance class, a proxy class,

In Jsobj, there is no Method1, execution, output is: (>> start with JS output)

>>jscallcs call!! >>hello CSCS call!! >>hello CS

After binding the underlying object, our JS class can directly have a property pointing to the underlying class of C #, so the method in the object class can be called directly through reflection when invoking the current method.

Then we change the JS class to overloaded Method 1:

    public class Testjsclass:testcsclass    {public        string Arg1 {get; set;}        public void Funa (string arg)        {                    } public        Testjsclass ()        {        } public        override Object Method1 ()        {            return "Hello JS";        }    }


>>jscallcs call!! >>hello Cs>>hello JS
We have covered the original Method1 method from JS, (nonsense--。。。 )

Let's go on ... The CS method is called from CS, and the overloaded

Create a new JS proxy class:

Namespace Jsproxy    {public        class TestCSClass:CsLibForJS.TestCSClass        {            public Jint.Native.Object.ObjectInstance __bindjsobject;            Public Testcsclass ()            {                            }            //overloaded method public            override Object Method1 ()            {                //overridden                if (__ Bindjsobject.hasproperty ("Method1"))                {                    return __bindjsobject.get ("Method1"). As<jint.native.function.functioninstance> (). Call (__bindjsobject,new jsvalue[0]);                }                else                {                    return base. Method1 ();}}}    

Call Procedure:

            Testcsclass Localclass = new Jsproxy.testcsclass ()            {                __bindjsobject =                    engine. Execute ("New CsLibForJS.TestJSClass.ctor ()")                        . Getcompletionvalue ()                        . As<jint.native.object.objectinstance> ()            };            Console.WriteLine ("Cscall:" + localclass. Method1 ());

Cscall:hello JS

It looks like a heavy load, we're just changing our hand js.

Remove this sentence:

   public override Object Method1 ()        {            return "Hello JS";        }


Cscall:hello CS

Personalized performance test included:

var sw = new Stopwatch ();            Sw. Start ();            for (int i = 0; i < 10000*10; i++)            {                localclass = new Jsproxy.testcsclass ()                {                    __bindjsobject = ctor. Construct (new jsvalue[0])                };                Localclass. Method1 ();            }            Sw. Stop ();            Console.WriteLine ("Looptime:" + SW. Elapsedmilliseconds);


Thank you for watching ~

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

. NET and Javascript mixed programming series (how to penetrate the boundaries of. NET and JS)

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