effekt
cooltt
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effekt | cooltt | |
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13 | 1 | |
283 | 208 | |
5.3% | -0.5% | |
9.6 | 5.7 | |
6 days ago | 6 months ago | |
Scala | OCaml | |
MIT License | Apache License 2.0 |
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effekt
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What the imperative shell of an Functional Core/Imperative Shell language looks like
I like it. Modern languages that distinguish between pure and impure programs like Flix, Koka, and Effekt do so on the type level instead of syntactically. This has three advantages:
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Algebraic Effects: Another mistake carried through to perfection?
The problem with checked exceptions been identified and solved. The same problem and solution applies to effect handlers. Effekt is a language with lexical effect handlers which doesn't have this problem. Consider the following program in Effekt:
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Is continuation passing style conversion still used as an intermediate language?
Yes, for you this is the right decision. But for us going to CPS makes everything significantly easier and in cases where you do use control effects significantly faster. For our language Effekt we are exploring different tradeoffs in different backends.
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The Registers of Rust - Without boats, dreams dry up
This pattern they observe is nicely captured by effect handlers. These examples are written in Effekt.
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An approach to manual memory management and side effect handling system, feedback, ideas and thoughts requested
This is beyond my level of expertise. But effect tracking? There are some cool languages out there that do that consistently! Search for "algebraic effects". My favorite is Koka. Effekt also seems to be a popular choice.
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Let's collect relatively new research programming languages in this thread
https://effekt-lang.org/ A research language with effect handlers and lightweight effect polymorphism
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Is there a garbage collected, statically typed language, that has null safety, and doesn't use exceptions?
Examples are languages like Koka, Effekt, Links, or Unison. These languages come with a type-and-effect system: a function's type not only tell you which values the function accepts and which values it returns, but also which effects it has. This is relevant to your question, because throwing an exception is one such effect.
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The Val Object Model: Template for a possible future Swift object model
It seems that with Effekt we are pursuing the same goal, but coming from the opposite direction, perhaps one day we will meet in the middle :). We start from a purely functional language and carefully add effects like mutation.
- Is there a pure-functional ML?
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"Colored" functions: pure versus impure
- https://effekt-lang.org/
cooltt
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Today, Thanks to this sub Reddit. I discovered 3 awesome new languages....
If you're looking for stuff pushing the boundaries of PL research, Agda (especially Cubical Agda) might be cool to look at. It's got lots of cutting edge stuff in it, pushing the boundaries of what is currently possible with dependent type theory. It's not the only language out there with cubical features (see also: cooltt), but it's probably one of the more fleshed-out implementations in terms of being practically useful. The 1Lab makes heavy use of it. There's also Introduction to Univalent Foundations of Mathematics with Agda that might be interesting to look at too!
What are some alternatives?
koka - Koka language compiler and interpreter
redtt - "Between the darkness and the dawn, a red cube rises!": a proof assistant for cartesian cubical type theory
Eff - Eff monad for cats - https://atnos-org.github.io/eff
xvm - Ecstasy and XVM
hylo - The Hylo programming language
cubicaltt - Experimental implementation of Cubical Type Theory
tofu - Functional programming toolbox
pony-tutorial - :horse: Tutorial for the Pony programming language
effects-bibliography - A collaborative bibliography of work related to the theory and practice of computational effects
sml-redprl - The People's Refinement Logic
ZIO - ZIO — A type-safe, composable library for async and concurrent programming in Scala
anders - 🧊 Модальний гомотопічний верифікатор математики