Skip to content
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

System FC #3

Open
FrankBro opened this issue Jul 12, 2014 · 1 comment
Open

System FC #3

FrankBro opened this issue Jul 12, 2014 · 1 comment

Comments

@FrankBro
Copy link

I've recently been looking around at System FC, which is what is used in haskell. I don't know if you've heard of it but it's interesting.

https://www.youtube.com/watch?v=2IZQx7WNOMs
https://www.cs.uoregon.edu/research/summerschool/summer13/lectures/FC_in_GHC_July13.pdf
@tomprimozic
Copy link
Owner

Hi FrankBro!

Thanks for pointing this out! I was vaguely aware that GHC used some form of evidence of type equality, but I didn't know any specifics. However, skimming through the presentation you linked, it seems that System FC is used mainly during compilation, by the GHC intermediate language. In my experiments, however, I focused on type systems with a form of type inference, which System F (and its extensions) lacks. There are ways of type inference for GADTs, but none of them is complete.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
2 participants
@tomprimozic @FrankBro