The Delphi Geek: Using Generics to Manipulate Enumerated Types

Not that this is bad code, but there are no unit tests for them, and I have seen places in the wild that blindly use it without documenting where it came from and what tested alternatives might be: [WayBack] The Delphi Geek: Using Generics to Manipulate Enumerated Types

The unit itself is down (though there is still a copy on the WayBack machine).

The post itself mentions it is Spring4D-inspired, and since Spring4D already has quite an extensive [WayBack] TEnum<T> implementation covered by unit tests, so that is a logical place to do for.

I might actually document the migration table if I find time for it.

Here is a start so I will only have to insert the blanks

Function	Replacement
class function Clip(const value: Integer): T;
class function Clip(const value: T): T;
class function Ensure(const value: Integer; const min, max: T): T;
class function Ensure(const value, min, max: T): T;
class function FromInt(const value: Integer): T;
class function Enum: RangeEnum; static;
class function GetValueOrDefault(const value: Integer): T;
class function IsValid(const value: Integer): Boolean;
class function IsValid(const value: T): Boolean;
class function Max: T; static;
class function Min: T; static;
class function ToInt(const value: T): Integer;
class function ToString(const value: T): string;

–jeroen