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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Geometry Bugs and Geometry Types (www.cs.cornell.edu)

submitted 1 month ago by [email protected] to c/[email protected]

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Key excerpt:

At OOPSLA 2020, Prof. Dietrich Geisler published a paper about geometry bugs and a type system that can catch them. The idea hasn't exactly taken over the world, and I wish it would. The paper's core insight is that, to do a good job with this kind of type system, you need your types to encode three pieces of information:

the reference frame (like model, world, or view space)

the coordinate scheme (like Cartesian, homogeneous, or polar coordinates)

the geometric object (like positions and directions)

In Dietrich's language, these types are spelled scheme<frame>.object. Dietrich implemented these types in a language called Gator with help from Irene Yoon, Aditi Kabra, Horace He, and Yinnon Sanders. With a few helper functions, you can get Gator to help you catch all the geometric pitfalls we saw in this post.

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