JSONのSuperObject(6):方法

SuperObjectのJSONオブジェクトに「方法」が含まれているのは興味深い.メソッドのフォーマットは次のとおりです.

procedure Method(const This, Params: ISuperObject; var Result: ISuperObject);



//  ,           :

TSuperType = (stNull, stBoolean, stDouble, stInt, stObject, stArray, stString, stMethod);


 
   

テストコード:

unit Unit1;



interface



uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls, Keyboard;



type

  TForm1 = class(TForm)

    Button1: TButton;

    Button2: TButton;

    procedure Button1Click(Sender: TObject);

    procedure Button2Click(Sender: TObject);

  end;



var

  Form1: TForm1;



implementation



{$R *.dfm}



uses SuperObject;



//  1;          ,         

procedure Method1(const This, Params: ISuperObject; var Result: ISuperObject);

begin

  ShowMessage('Hello');

end;



//  2;           ;                

procedure Method2(const This, Params: ISuperObject; var Result: ISuperObject);

begin

  ShowMessage(Params.AsJSon);

end;



//  3;           ;              ,             

procedure Method3(const This, Params: ISuperObject; var Result: ISuperObject);

begin

  ShowMessage(This.AsJSon);

end;



//  4;           ;          ,        ,         

procedure Method4(const This, Params: ISuperObject; var Result: ISuperObject);

begin

  Result := This;

  Result.Merge(Params, True); {  }

end;





//       

procedure TForm1.Button1Click(Sender: TObject);

var

  jo: ISuperObject;

begin

  jo := SO('{"X":"Y"}');

  jo.M['jm1'] := @Method1;

  jo.M['jm2'] := @Method2;

  jo.M['jm3'] := @Method3;

  jo.M['jm4'] := @Method4;



  jo.call('jm1');                      // Hello



  jo.call('jm2', SO('{"A":"B"}'));     // {"A":"B"}

  jo.call('jm2', '{"A":"B"}');         // {"A":"B"}



  jo.call('jm3');                      // {"X":"Y"}



  jo.call('jm4', '{"B":null}');

  ShowMessage(jo.AsJSon);              // {"X":"Y","B":null}

end;



//       

procedure TForm1.Button2Click(Sender: TObject);

var

  t,jo: ISuperObject;

begin

  jo := SO('{"X":"Y"}');

  jo.M['jm1'] := @Method1;

  jo.M['jm2'] := @Method2;

  jo.M['jm3'] := @Method3;

  jo.M['jm4'] := @Method4;



  jo['jm1()'];                           // Hello



  jo['jm2(' + '{"A":"B"}' + ')'];        // {"A":"B"}

  jo['jm2({A:B})'];                      // {"A":"B"}



  jo['jm3()'];                           // {"X":"Y"}



  jo['jm4(' + '{"B":null}' + ')'];

  ShowMessage(jo.AsJSon);                // {"X":"Y","B":null}

end;



end.