u/libeakoin r/haskell • Recommends
Richard Eisenberg: How whitespace works in Haskell
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@rae: How whitespace works in Haskell
Tweag by Modus Create
5K subscribers • 25 videos on Hallway
- Recommended by 1 person: 1 in engineering communities.
- Presented by Richard Eisenberg, software engineer at Tweag
Beginner. No background in the topic needed.
2.8K views5 years ago1 recommendation
Programming languagesHaskellLanguage design and type systems
Richard Eisenberg explains Haskell's layout rule and how whitespace works in practice.
We explore Haskell's layout rule, and how it works in practice. Official description of that layout rule: haskell.org/onlinereport/haskell2010/haskellch2.html#x7-2100… Find me at richarde.dev/Why it's here
1 person recommends thisWhat people say. Recommended as a clear explanation of Haskell's layout and indentation rules.
u/Spasmodic_Ramblingsin r/haskell • Mentions
On “Indentation rules”
If you want a more expansive explanation than in the report listed in the other comment (and/or prefer video format), I highly recommend this video: [video
u/UnclearVoyantin r/haskell • Mentions
On “Desugaring confusion with `do`”
This video clarifies a lot about indentation scopes
link to this video
u/cyrus_t_crumplesin r/haskell • Mentions
On “Haskell For Dilettantes - Part 2 (Expressions, Simple types, Simple functions)”
When you say "can I bind a name to something without using a function?", I think the better phrasing would have been "Can I bind a name just using an expression?"
I felt like you were going for making a binding without a "top-level declaration", but that's a bit of jargon that maybe you don't want to introduce at this stage.
> I think you can extend this out as far as you want
Haha, you can't go higher than 63-tuples, I think!
WRT indentation concerns, I cannot recommend the lovely Richard Eisenberg video on whitespace high enough.
When you started introducing typed holes, you were saying that "The compiler doesn't actually know what should go there!" and you were saying that the hole…