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delphianonymous-types

Anonymous Record constructors in delphi

Is it possible to use records as a method parameter, and call it without implicitly declaring an instance of said record?

I would like to be able to write code like this.

type
  TRRec = record
    ident : string;
    classtype : TClass;
  end;

procedure Foo(AClasses : array of TRRec);

then calling the method like this or something similar.

Foo([('Button1', TButton), ('Lable1', TLabel)]);

I'm still stuck on Delphi 5 by the way.

Solution

  • Yes. Almost.

    type
  TRRec = record
    ident : string;
    classtype : TClass;
  end;

function r(i: string; c: TClass): TRRec;
begin
  result.ident     := i;
  result.classtype := c;
end;

procedure Foo(AClasses : array of TRRec);
begin
  ;
end;

// ...
Foo([r('Button1', TButton), r('Lable1', TLabel)]);