Nested routines

What is translated > Routines > Nested routines

In Delphi functions can be nested. Fortunately C# local functions are quite similar.

type

TNested = class

public

  iClassVar : Integer;

  function Test(iOuterParam, iTwiceParam : Integer; s : String): Integer;

end;

implementation

function TNested.Test(iOuterParam, iTwiceParam : Integer; s : String): Integer;

const

  cSeparate = ':';

var

 iFunctionVar : Integer;

 procedure NestedTest(iInnerParam, iTwiceParam : Integer);

 begin

   result := iClassVar + iOuterParam + iFunctionVar + iInnerParam + iTwiceParam;

 end;

begin

 iClassVar := 1;

 iFunctionVar := 2;

 NestedTest1(3, 4);

 result := result + iTwiceParam;

end;

->

public class TNested : TObject

{

  public int iClassVar;

  public int test(int iOuterParam, int iTwiceParam, string s)

  {

    int result = 0;

    const char cSeparate = ':';

    int iFunctionVar = 0;

    void NestedTest(int iInnerParam, int iTwiceParam_1)

    {

      result = iClassVar + iOuterParam + iFunctionVar + iInnerParam + iTwiceParam_1;

    };

    iClassVar = 1;

    iFunctionVar = 2;

    NestedTest1(3, 4);

    result = result + iTwiceParam;

    return result;

  }

  public TNested() {}

};

There are some restrictions in C# however. In the example the outer and the inner routine both have a parameter called "iTwiceParam". In C# this isn't allowed. the parameter for the inner routine is rename d to "iTwiceParam_1" therefore. The "_1" stands for level one.

This page belongs to the Delphi2C# Documentation