Programming Languages

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Hello!

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

Bringing Verse Transactional Memory Semantics to C++ (www.unrealengine.com)

submitted 8 months ago* (last edited 8 months ago) by armchair_progamer to c/programming_languages

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Verse (paper/slides, language reference) is the "language for the metaverse" being developed by Epic Games and some very well-known PL researchers.

It has some very ambitious and non-traditional features: first-class types, effects, non-strict evaluation, choice (kind of like non-determinism), and transactional memory. Transactional memory means that a Verse computation (transaction) can be aborted early, and all effects produced by the transaction will be reverted.

Verse also is interoperable with C++, and part of that interop is that C++ functions called in Verse must also have their C++ effects reverted. Furthermore, this is for graphically-intensive realtime games so this rollback implementation must cause as minimal overhead as possible. That's what this article is about.

There's already some Verse code running in Fortnite and you can write Fortnite plugins in Verse today, but it's very WIP.

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[–] bitcrafter 1 points 8 months ago (1 children)

Huh, the docs are the only place where I see if defined in that way; in the slide decks and the paper the term "choice" means what you would expect in a logic programming context, and they even show concrete examples of unification. Maybe the Unreal Engine is using a subset of the full language for its dialect so that it can be mapped to and from C++?

[–] [email protected] 1 points 8 months ago

Ah, ok. I'll have to check this out in more detail.