rfcs
eff
rfcs | eff | |
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8 | 18 | |
58 | 546 | |
- | 0.4% | |
4.3 | 0.0 | |
16 days ago | 12 months ago | |
Haskell | ||
Apache License 2.0 | ISC License |
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rfcs
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What are the current hot topics in type theory and static analysis?
I would add that Equality saturation/E-graphs has become quite a hot topic recently, since their POPL21 paper, with workshops dedicated to applications of e-graphs. They have even recently been added to Cranelift as an IR for optimizations.
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Blog Post: Next Rust Compiler
I think with Cranelift's investment into an e-graph based optimizer (https://github.com/bytecodealliance/rfcs/blob/main/accepted/cranelift-egraph.md) they are well positioned to have quite competitive performance as a backend.
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Inko in 2023
They're also actively working in this area, for example the recently added equality saturation framework and the pattern matching DSL it builds on.
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Wasmtime Reaches 1.0: Fast, Safe and Production Ready!
There's an RFC here: https://github.com/bytecodealliance/rfcs/pull/28 and Saúl Cabrera, the person who is leading this effort and implementing the compiler tier, has a work-in-progress draft PR here: https://github.com/bytecodealliance/wasmtime/pull/4907
- Cranelift: Using E-Graphs for Verified, Cooperating Middle-End Optimizations
- Cranelift Progress Report: A Look Back at 2021
eff
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Haskellers who moved to Rust: What has been your experience?
You can swap-out implementations for testing, avoid the crazy N^2 instances issues, etc. They're pretty cool. Currently there are many competing libraries. polysemy and eff both have good examples on their homepages.
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What are the current hot topics in type theory and static analysis?
Effect systems and Algebraic effects. ocaml has just released a stripped-down effect system. People are also working on Effect systems for Haskell (eff, fused-effects, effet). Koka is a language built with effects first and foremost and it’s rapidly gaining popularity. Unison also has effects.
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[ANNOUNCE] GHC 9.6.1 is now available
There are also a few subtle issues that arise with delconts related to semantics of higher order effects (see here and here), but they might be solvable.
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Effectful | Paweł Szulc | Lambda Days 2022
Details are in https://github.com/hasura/eff/issues/12 and https://www.reddit.com/r/haskell/comments/pywuqg/unresolved_challenges_of_scoped_effects_and_what/.
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Looking for languages that combine algebraic effects with parallel execution
You'll get fearless parallel with STM in the mixture, and GHC is getting a work in progress effect system for Haskell, as Delimited continuation primops has been merged.
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Should I pick up OCaml or Haskell?
My last example is algebraic effects, some of which have been made possible in a both practical and efficient way thanks to extremely recent research, and that I can use to implement architectures like Ports and Adapters or Clean Architecture and have very maintainable code. (Extensible Effects — An Alternative to Monad Transformers was published in 2013, Effect Handlers in Scope was published in 2014 and they are behind Polysemy, while there is ongoing work on effects with even better performance, like Eff)
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[ANN] cleff - fast and consise extensible effects
cleff's Eff monad is esentially implemented as a ReaderT IO. [...] This is first done by eff, [...]
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Opinions on Reader + Continuation-based IO?
Here is link number 1 - Previous text "eff"
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Where's more discussion of the designs of effect systems?
Languages such as Koka only support algebraic effects, not scoping operations such as catch and listen. The Effect Handlers in Scope paper introduces scoping operations, which lead to the Haskell libraries fused-effects and polysemy, but they turned out to have some weird semantics. eff is her effort to fix that.
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Languages that don't support Error-Catching as a Control Structure?
There are a few languages that have algebraic effect systems, most notably Haskell, but these systems are implemented as libraries, not baked into the language (which can have advantages and disadvantages).
What are some alternatives?
reduze - Zig program reduction is upstream in compiler due to various parser + formatter interactions.
freer-simple - A friendly effect system for Haskell
buck2 - Build system, successor to Buck
fused-effects - A fast, flexible, fused effect system for Haskell
libaco - A blazing fast and lightweight C asymmetric coroutine library 💎 ⛅🚀⛅🌞
frp-zoo - Comparing many FRP implementations by reimplementing the same toy app in each.
design
in-other-words - A higher-order effect system where the sky's the limit
spiderlightning - A set of WIT definitions and associated implementations to enable app developers to work at a faster pace and require less knowledge of the environment in which they are executing.
polysemy - :gemini: higher-order, no-boilerplate monads
marker - An experimental linting interface for Rust. Let's make custom lints a reality
extensible-effects - Extensible Effects: An Alternative to Monad Transformers