[OT] What are D's values?

SealabJaster sealabjaster at gmail.com
Mon Oct 4 23:01:31 UTC 2021

On Monday, 4 October 2021 at 22:15:33 UTC, Walter Bright wrote:
> What are your experiences with this?

I find code that does Design by Introspection tends to be very 
resilient to additions, modifications, and removals.

For example, I have a library that makes heavy use of 
introspection, and I completely changed the way the introspection 
was being handled without having to touch the way the user code 
was designed.

This was done without breakage (well... there was one break due 
to a language limitation), and with very minor behavioral 
differences. It was definitely quite magical.

Adding things is as simple as making a new UDA, slapping in some 
glue code for the introspect layer, and then applying it where 

Modifications don't really break anything unless the UDA itself 
is changed.

Removals technically don't break much since the user part of the 
code is just ignored and non-functional now.

DbI can be pretty awesome.

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