Programming Languages

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This is the current Lemmy equivalent of https://www.reddit.com/r/ProgrammingLanguages/.

The content and rules are the same here as they are over there. Taken directly from the /r/ProgrammingLanguages overview:

This community is dedicated to the theory, design and implementation of programming languages.

Be nice to each other. Flame wars and rants are not welcomed. Please also put some effort into your post.

This isn't the right place to ask questions such as "What language should I use for X", "what language should I learn", and "what's your favorite language". Such questions should be posted in /c/learn_programming or /c/programming.

This is the right place for posts like the following:

"Check out this new language I've been working on!"
"Here's a blog post on how I implemented static type checking into this compiler"
"I want to write a compiler, where do I start?"
"How does the Java compiler work? How does it handle forward declarations/imports/targeting multiple platforms/?"
"How should I test my compiler? How are other compilers and interpreters like gcc, Java, and python tested?"
"What are the pros/cons of ?"
"Compare and contrast vs. "
"Confused about the semantics of this language"
"Proceedings from PLDI / OOPSLA / ICFP / "

See /r/ProgrammingLanguages for specific examples

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armchair_progamer@programming.dev

A Dependent Nominal Physical Type System for Static Analysis of Memory in Low Level Code (paper) (codex.top)

submitted 1 month ago* (last edited 1 month ago) by armchair_progamer@programming.dev to c/programming_languages@programming.dev

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Background: the authors are developing a static analysis library (or perhaps framework) called Codex and publishing papers on it. This post summarizes their most recent paper, which got accepted to OOPSLA 2024. The full paper and an artifact (Docker container) are both linked, and Codex is on GitHub with a demo.

Excerpt:

One of the main challenges when analyzing C programs is the representation of the memory. The paper proposes a type system, inspired by that of C, as the basis for this abstraction. While initial versions of this type system have been proposed in VMCAI'22 and used in RTAS'21, this paper extends it significantly with new features like support for union, parameterized, and existential types. The paper shows how to combine all these features to encode many complex low-level idioms, such as flexible array members or discriminated unions using a memory tag or bit-stealing. This makes it possible to apply Codex to challenging case studies, such as the unmodified Olden benchmark, or parts of OS kernels or the Emacs Lisp runtime.

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