zz
firefly-boot
Our great sponsors
zz | firefly-boot | |
---|---|---|
10 | 12 | |
1,604 | 48 | |
- | - | |
1.9 | 9.7 | |
almost 2 years ago | 3 days ago | |
Rust | JavaScript | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
zz
- A "logical" compiler
-
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
-
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/
[4] https://www.microsoft.com/en-us/research/project/vcc-a-verif...
-
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.
- ZetZ: A zymbolic verifier and tranzpiler to bare metal C Resources
-
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.
-
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.
-
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.
-
We are building a new systems programming language
Especially the fact that it outputs C code. So interop is seamless.
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...
-
Does such a language already exist ("Rust--")?
You might find ZetZ interesting!
firefly-boot
-
What's the syntax of lambda expressions in your language?
Firefly, curly braces:
-
January 2022 monthly "What are you working on?" thread
I'm still working on Firefly, a language with first class capabilities.
-
Ask HN: Who Wants to Collaborate?
Since there's no other way for `deleteDirectory` to obtain capabilities than to recieve them as arguments, `deleteDirectory` only has access to the file system.
[1] https://github.com/Ahnfelt/firefly-boot/tree/master/compiler
-
Preventing Log4j with Capabilities
> Do you have more to share, like resources about capability-safe languages, or your ongoing work?
I can share an example from the main function of the [self hosting Firefly compiler](https://github.com/Ahnfelt/firefly-boot/tree/master/compiler):
main(system: System): Unit {
-
What are some simple but powerful compile-to-JS languages I might not know about, or that you are working on (not Elm, Reason, PureScript, or ClojureScript)?
I'm working on Firefly, which will compile to JS once bootstrapping is complete (almost there).
-
June 2021 monthly "What are you working on?" thread
Still working on typechecking Firefly with the help of a friend.
-
March 2021 monthly "What are you working on?" thread
Working on the type inference for Firefly. I don't have a lot of free time at the moment, so it's coming along slowly.
-
Alternative to monads for enforcing purity?
Firefly uses object capabilities for enforcing purity:
-
Generalizing Ruby block syntax in static languages with currying
In Firefly, this is done without macros:
-
February 2021 Monthly What Are You Working On
Firefly - self hosting, working on the type inference.
What are some alternatives?
TinyGo - Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.
xvm - Ecstasy and XVM
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.
konna - A fast functional language based on two level type theory
angr - A powerful and user-friendly binary analysis platform!
cubiml-demo - A simple ML-like programming language with subtyping and full type inference.
alive2 - Automatic verification of LLVM optimizations
starlight - JS engine in Rust
CrossHair - An analysis tool for Python that blurs the line between testing and type systems.
IntercalScript - The IntercalScript programming language
micro-mitten - You might not need your garbage collector
Matrix - Easy-to-use Scientific Computing library in/for C++ available for Linux and Windows.