dale
chalk
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dale | chalk | |
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5 | 25 | |
1,016 | 1,768 | |
- | 1.5% | |
3.8 | 7.1 | |
6 days ago | 17 days ago | |
C++ | Rust | |
BSD 3-clause "New" or "Revised" License | GNU General Public License v3.0 or later |
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dale
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Is there a language with lisp syntax but C semantics?
There's Dale, Extempore (more particularly, XTlang which is the statically-typed part of Extempore), Carp, and one more that I can't remember right now that basically maps to C++, more-or-less directly.
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What Makes Lisp Unique?
>However, there are LISP flavored versions of C
For anyone interested the example given is from https://github.com/tomhrr/dale
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Useful lesser-used languages?
Dale: Basically C, but using Lisp syntax, support for macros, which might segfault, not beginner friendly at all.
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A language you feel the most productive with?
Carp, Lux and Dale are 3 I'm familiar with.There's also Dylan, though that one dropped its parentheses. But if we go by the brackets, technically, we can argue that any expression-based languages is a Lisp. I once wrote a Lisp to JS transpile whose output had more parens than the input. :)
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Best Lisp/scheme for OSDev?
Dale
chalk
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Why did Prolog lose steam? (2010)
The Rust compiler uses a Prolog-like query language internally for type checking generic requirements and traits: https://github.com/rust-lang/chalk
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Why doesn't rust-analyzer reuse infrastructures of rustc?
rust-analyzer already uses chalk (https://github.com/rust-lang/chalk) which should replace the current trait resolver.
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Why use Rust on the backend? by Adam Chalmers
Well it's quite easy to come to that conclusion: The code compiles with rustc, which is currently the reference implementation. If rust-analyzer does not match rustc's behavior it's an issue in their implementation. That written it's not that easy to fix as it's related to how rust-analyzer resolves types/traits. rust-analyzer uses chalk for this, which is known to be incomplete/diverging from the RFC'ed behavior. Now one could argue that we can simplify diesel to the point where it works will with rust-analyzer/chalk, but that would result in basically removing core diesel features that exist way longer than rust-analyzer.
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Why has functional programming become so popular in non-academic settings?
> Not all of those things work well in the real world. E.g. logic programming (prolog) is cool but ultimately never really caught on.
It does have its niches though. For example, there is a trait solver for Rust called Chalk that uses a Prolog-inspired language because trait bounds basically define a logic:
https://github.com/rust-lang/chalk
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General mathematical expression analysis system
Maybe something in the prolog/datalog direction could be useful? Notably Rust has Chalk to help with trait resolution ("Chalk is a library that implements the Rust trait system, based on Prolog-ish logic rules.")
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Useful lesser-used languages?
There has been work to implement part of the Rust typing logic in the Chalk Engine which uses a prolog-ish syntax to describe its rules.
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Can you have a function return different types known at compile time
That's something Chalk is trying to tackle.
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Compile time wins today
We probably will see all of them at some point -- polonius is a current effort to make the borrow checker accept more valid programs, in a way that also simplifies the logic and is probably a bit faster than the current NLL system, chalk is an attempt to do a similar thing for the trait system, and cranelift is a project that seeks to replace the LLVM codegen backend. But obviously, these are very large and complex projects that are gonna take some time.
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What is the difference between associated types and generics?
Do Rust developers realize that? Oh, yes, absolutely, that's why we have this:
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Question about Trait Bounds (from Rust for Rustaceans)
For me an attempt to write where HashMap: FromIterator and then use new and insert was totally bizzare because currently rustc is pretty primitive and doesn't do super-complex machinery needed to do what you want. Chalk may fix that one day, but it's nowhere near to being ready for inclusion into rustc thus I wouldn't even attempt to do what you tried to do… but that's not something you are supposed to know before reading this book!
What are some alternatives?
lux - The Lux Programming Language
polonius - Defines the Rust borrow checker.
Carp - A statically typed lisp, without a GC, for real-time applications.
miri - An interpreter for Rust's mid-level intermediate representation
Nim - Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority).
prolog - The only reasonable scripting engine for Go.
opendylan - Open Dylan compiler and IDE
lccc - Lightning Creations Compiler Frontend for various languages
FFTW - DO NOT CHECK OUT THESE FILES FROM GITHUB UNLESS YOU KNOW WHAT YOU ARE DOING. (See below.)
pny1-assignment - College assignment writing in which I ramble about type classes and dependent types.
extempore - A cyber-physical programming environment
expr - Expression language and expression evaluation for Go [Moved to: https://github.com/expr-lang/expr]