zz
pony-tutorial
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zz | pony-tutorial | |
---|---|---|
10 | 5 | |
1,604 | 303 | |
- | 2.0% | |
1.9 | 7.0 | |
almost 2 years ago | 4 days ago | |
Rust | Markdown | |
MIT License | BSD 2-clause "Simplified" License |
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zz
- A "logical" compiler
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Is it possible to have a superset of the C programming languages standard that is as safe as Rust?
There is this: https://github.com/zetzit/zz
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ISO C became unusable for operating systems development
You're right that you can't define a safe subset of C without making it practical. MISRA C defines a C subset intended to help avoid C's footguns, but it still isn't actually a safe language. There are alternative approaches though:
1. Compile a safe language to C (whether a new language or an existing one)
2. Formal analysis of C, or of some practical subset of C, to prove the absence of undefined behaviour
Work has been done on both approaches.
ZZ compiles to C. [0] Dafny can compile to C++, but it seems that's not its primary target. [1][2]
There are several projects on formal analysis of C. [3][4][5][6]
[0] https://github.com/zetzit/zz
[1] https://github.com/dafny-lang/dafny
[2] https://dafny-lang.github.io/dafny/
[3] https://frama-c.com/
[4] https://www.microsoft.com/en-us/research/project/vcc-a-verif...
[5] https://www.eschertech.com/products/ecv.php
[6] https://trust-in-soft.com/
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Foundations of Dawn: The Untyped Concatenative Calculus
Formal methods have been used successfully for decades; it's not just a pipe dream. Perfect software should ideally be something like ultra-low-defect software, though (that's the term the AdaCore folks use).
There are also other projects that aim to make formal software development much easier [0][1] and of course there's SPARK Ada.
[0] https://github.com/zetzit/zz
[1] https://github.com/dafny-lang/dafny
- ZetZ: A zymbolic verifier and tranzpiler to bare metal C Resources
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Programming in Z3 by learning to think like a compiler
This post reminds me that I've been wanting to try out ZetZ[0]. It incorporates Z3 into a high-level programming language, and seems to do a lot of what the post talks about automatically.
[0] https://github.com/zetzit/zz
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Grids in Rust, part 2: const generics
I still want to try the ZZ language (https://github.com/zetzit/zz) someday. It compiles to C, and uses a SMT solver to prove that you don't index out-of-bounds at compile time. But I don't like how it lacks generics, uses C idioms, and compiles to C.
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Another technique to manage memory
The zz language uses a SMT solver to check for program soundness... I haven't tried it, but that's got to be more flexible and resource-hungry.
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We are building a new systems programming language
Especially the fact that it outputs C code. So interop is seamless.
https://github.com/zetzit/zz
For any systems language, interop with C is the litmus test.
With that in mind, this new language should not require 15,000 lines of standard library. A type-safe wrapper for libc should be enough...
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Does such a language already exist ("Rust--")?
You might find ZetZ interesting!
pony-tutorial
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Is there a programming language that will blow my mind?
I don't think that there is a book written about Pony, but the tutorial and the list of patterns (WIP) are all you need to learn the language.
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Not well known programming languages with interesting features?
[Pony](https://tutorial.ponylang.io/): actors, reference capabilities, object capabilities.
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Today, Thanks to this sub Reddit. I discovered 3 awesome new languages....
Pony is a relatively young but interesting language with capabilities-security.
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Does such a language already exist ("Rust--")?
Well, depends on how you define ownership. Pony 's type system has reference capabilities which let you define who's allowed to do what to a reference and part of it sort of deals with ownership (along the lines of "this actor is allowed to do Y to the reference, other actors are allowed to do Z"). You can eg. have methods that return an isolated value that guarantees that there are no other references to that value, meaning it's automatically thread safe. You can also define things as vals which says that they are globally immutable, refs which give the current actor read/write capabilities but can't be shared with other actors
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Flix β Next-generation reliable, concise, functional-first programming language
The alternatives are:
- Division must be impure (because it can throw an exception)
- Division must be partial - i.e. return Option[Int].
Both seem worse compared to defining division by zero as zero. Coq, Lean, and Pony do the same. https://github.com/ponylang/pony-tutorial/blob/master/conten...
What are some alternatives?
TinyGo - Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.
effekt - A research language with effect handlers and lightweight effect polymorphism
checkedc - Checked C is an extension to C that lets programmers write C code that is guaranteed by the compiler to be type-safe. The goal is to let people easily make their existing C code type-safe and eliminate entire classes of errors. Checked C does not address use-after-free errors. This repo has a wiki for Checked C, sample code, the specification, and test code.
sixten - Functional programming with fewer indirections
angr - A powerful and user-friendly binary analysis platform!
cooltt - πTT
CrossHair - An analysis tool for Python that blurs the line between testing and type systems.
felix - The Felix Programming Language
micro-mitten - You might not need your garbage collector
io - Io programming language. Inspired by Self, Smalltalk and LISP.
alive2 - Automatic verification of LLVM optimizations
TablaM - The practical relational programing language for data-oriented applications