[fpc-pascal] Record Method and Operators

[Florian Klaempfl]

Cesar Romero schrieb:
> Hi,
> 
> Im wondering if FPC Team have plans to support Record Methods/Operators
> in future versions of FPC
> I read the actual "Future plans" and the most closed item is "RTL:: More
> compatibility with later Delphi versions."
> But it do not means that records can be changed.
> 
> I want to implement my ValueTypes using record with implicit operators
> and constructor/destructor, like this code written by a friend, Lee Nover.
> 
> TSpecifier = record
>   S: AnsiString;
>   WS: WideString;
>   Intf: IInterface;
> 
>   class operator Implicit(const S: AnsiString): TSpecifier;
>   class operator Implicit(const C: Cardinal): TSpecifier;
>   class operator Implicit(const D: Double): TSpecifier;
>   class operator Implicit(const I: Integer): TSpecifier;
>   class operator Implicit(const I64: Int64): TSpecifier;
>   class operator Implicit(const V: TValue): TSpecifier;
>   class operator Implicit(const WS: WideString): TSpecifier;
>   class operator Implicit(const Intf: IInterface): TSpecifier;
> 
>   class operator Implicit(const Spec: TSpecifier): AnsiString;
>   class operator Implicit(const Spec: TSpecifier): Cardinal;
>   class operator Implicit(const Spec: TSpecifier): Double;
>   class operator Implicit(const Spec: TSpecifier): Integer;
>   class operator Implicit(const Spec: TSpecifier): Int64;
>   class operator Implicit(const Spec: TSpecifier): TValue;
>   class operator Implicit(const Spec: TSpecifier): WideString;
>   class operator Implicit(const Spec: TSpecifier): IInterface;
> 
>   case NativeType: Integer of
>     varInteger: (I: Integer);
>     varInt64: (I64: Int64);
>     varLongWord: (C: Cardinal);
>     varDouble: (D: Double);
>     varObject: (O: TValue);
> end;
> 
> My plans is to have a single framework compatible with Delphi 2007/2009
> and FPC, so Ill not use some D2009 only resources, but implicit
> operators make the live of users very better to write less and better code.
> 
> Can I have any hope about this subject?

What does it prevent you from using FPC's operator overloading
capabilities to do so which has FPC for 10 years?