New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Single Variant Eliminator #31

Open

eric-corumdigital opened this issue May 29, 2018 · 0 comments

eric-corumdigital commented May 29, 2018 •

edited

Loading

single :: forall s t e
  .   IsSymbol s
  =>  RowCons s t () e
  =>  RowToList e (Cons s t Nil)
  =>  Variant e
  ->  t
single = on (SProxy :: SProxy s) id case_

Just an idea. I found this useful. Thanks to @MonoidMusician for the RowToList idea so s is inferrable.

The text was updated successfully, but these errors were encountered:

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment