I have a situation where I want to wrap a certain type to add a few methods to that type.

UFCS is not an option, because the library that will use this type will not import the UFCS methods.

std.typecons.Proxy doesn't seem to wrap static methods, and besides, I want to return wrappers if the function being wrapped returns the same type (this is critical for stuff like auto result = a + b, I want the result to be the same wrapped type).

Are there any libraries that might do this (including Phobos)?

-Steve

On Monday, 28 June 2021 at 15:17:34 UTC, Steven Schveighoffer wrote:

https://code.dlang.org/packages/addle

Doesn't do everything you're looking for, but you might find some useful tricks in the source.

On 6/28/21 11:53 AM, Paul Backus wrote:

Very neat! I think I can't use it, because I need to add static methods.

My particular use case is a translated database type. In this case, it's a fixed point currency, which is stored as an integer in the database, but translated to a D fixedpoint type.

To make it work with my DB library, I need to have a method dbValue which converts the D type into an appropriate D type that the database can utilize (long in this case), and a static method fromDBValue which goes the opposite direction.

For now, I've just hand implemented the needed functions. This includes forwarding constructors, operator overloads, opAssign, etc.

-Steve