DWScript extended language features

DWScript has supported several extensions to the Delphi language since the beginning. Here are a few you may wish the Delphi compiler supported too (and not just Delphi Prism…):

• generalized case of, which supports non-ordinal type, for instance you can write

  case myString of
    'hello': PrintLn('Hello!');
    'goodbye': PrintLn('See you!');
  end;

• variables can be declared in-line anywhere in the script, allowing code like

  for i:=1 to 10 do begin
     var k : Integer;
     ...
  end;

• variables are always initialized, not just global or managed variables

  procedure MyProc;
  var
     k : Integer;
  begin
     ...k is guaranteed to be zero here (unlike in Delphi)

• variables can be initialized to custom values upon declaration

  var obj : TMyObject = TMyObject.Create;