tps_demo_overload.htm

来自「Delphi脚本控件」· HTM 代码 · 共 114 行

HTM

114 行

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<h3>
TPaxScripter Demo. Registering overloaded routines and routines which have default parameters.
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<pre>
<font color="blue"><b>unit</b></font> Unit1;

<font color="blue"><b>interface</b></font>

<font color="blue"><b>uses</b></font>
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, PaxScripter, PaxPascal, BASE_PARSER;

<font color="blue"><b>type</b></font>

  TForm1 = <font color="blue"><b>class</b></font>(TForm)
    Memo1: TMemo;
    PaxScripter1: TPaxScripter;
    PaxPascal1: TPaxPascal;
    Button1: TButton;
    <font color="blue"><b>procedure</b></font> Button1Click(Sender: TObject);
  <font color="blue"><b>private</b></font>
    { <font color="blue"><b>Private</b></font> declarations }
  <font color="blue"><b>public</b></font>
    { <font color="blue"><b>Public</b></font> declarations }
    <font color="blue"><b>procedure</b></font> TestOverload(lVal: Boolean); overload;
    <font color="blue"><b>procedure</b></font> TestOverload(<font color="blue"><b>const</b></font> cVal: <font color="blue"><b>String</b></font>); overload;
    <font color="blue"><b>procedure</b></font> TestDefParam(<font color="blue"><b>const</b></font> cVal: <font color="blue"><b>String</b></font> = <font color="Red">'abc'</font>);
  <font color="blue"><b>end</b></font>;

<font color="blue"><b>var</b></font>
  Form1: TForm1;


<font color="blue"><b>implementation</b></font>

{$R *.dfm}

<font color="blue"><b>uses</b></font> Imp_Classes, Imp_Dialogs;

<font color="blue"><b>procedure</b></font> TForm1_TestOverload1(lVal: Boolean);
<font color="blue"><b>begin</b></font>
  TForm1(_Self).TestOverload(lVal);
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TForm1_TestOverload2(<font color="blue"><b>const</b></font> cVal: <font color="blue"><b>String</b></font>);
<font color="blue"><b>begin</b></font>
  TForm1(_Self).TestOverload(cVal);
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TForm1.Button1Click(Sender: TObject);
<font color="blue"><b>begin</b></font>
   RegisterClassType(TForm1, -1);
   RegisterMethod(TForm1,
       <font color="Red">'procedure TestOverload(lVal: Boolean);'</font>,
       @TForm1_TestOverload1, fake);
   RegisterMethod(TForm1,
       <font color="Red">'procedure TestOverload(const cVal: String);'</font>,
       @TForm1_TestOverload2, fake);
   RegisterMethod(TForm1,
       <font color="Red">'procedure TestDefParam(cVal: String = '</font><font color="Red">'abc'</font><font color="Red">');'</font>,
       @TForm1.TestDefParam);

   PaxScripter1.ResetScripter;
   PaxScripter1.RegisterObject(<font color="Red">'Form1'</font>,Self);
   PaxScripter1.AddModule(<font color="Red">'main'</font>,<font color="Red">'paxPascal'</font>);
   PaxScripter1.AddCode(<font color="Red">'main'</font>,Memo1.Lines.Text);
   PaxScripter1.Run;
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TForm1.TestOverload(lVal: Boolean);
<font color="blue"><b>begin</b></font>
   <font color="blue"><b>If</b></font> lVal <font color="blue"><b>Then</b></font> <font color="blue"><b>begin</b></font>
      ShowMessage(<font color="Red">'True'</font>);
   <font color="blue"><b>end</b></font> <font color="blue"><b>else</b></font> <font color="blue"><b>begin</b></font>
      ShowMessage(<font color="Red">'False'</font>);
   <font color="blue"><b>end</b></font>;
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TForm1.TestDefParam(<font color="blue"><b>const</b></font> cVal: <font color="blue"><b>String</b></font> = <font color="Red">'abc'</font>);
<font color="blue"><b>begin</b></font>
   ShowMessage(cVal);
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TForm1.TestOverload(<font color="blue"><b>const</b></font> cVal: <font color="blue"><b>String</b></font>);
<font color="blue"><b>begin</b></font>
   ShowMessage(cVal);
<font color="blue"><b>end</b></font>;

<font color="blue"><b>end</b></font>.
</pre>
</blockquote>

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