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No more code headers? (midwest.social)

submitted 2 years ago by ThermosOfPain@midwest.social to c/programming@programming.dev

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I recently hired into a data analytics team for a hospital, and we don't have a style guide. Lots of frustration from folks working with legacy code...I thought putting together a style guide would help folks working with code they didn't write, starting with requiring a header for SQL scripts first as low hanging fruit.

Or so I thought.

My counterpart over application development says that we shouldnt be documenting any metadata in-line, and he'd rather implement "docfx" if we want to improve code metadata and documentation. I'm terrified of half-implementing yet another application to further muddy the waters--i'm concerned it will become just one-more place to look while troubleshooting something.

Am I going crazy? I thought code headers were an industry standard, and in-line comments are regarded as practically necessary when working with a larger team...

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[–] TehPers@beehaw.org 1 points 2 years ago* (last edited 2 years ago)

Self-documenting code only documents what the code does, not why it does it. I can look at a well written method that populates a list with random elements from another list and go "I know what that does!" but reading the code doesn't tell me the reason this code was written or why alternatives weren't chosen.

In the case of Rust, it goes even a step further when working with unsafe code. Sure I know what invariants need to be held for unsafe code to be sound, but not everyone does, and it isn't always clear why a particular assumption made in an unsafe block (the list has at least 5 elements, for example) can be made soundly.