Hacker News with Generative AI: Error Handling

Syntax error recovery in parsing expression grammars (PEG parsers) (arxiv.org)
Parsing Expression Grammars (PEGs) are a formalism used to describe top-down parsers with backtracking. As PEGs do not provide a good error recovery mechanism, PEG-based parsers usually do not recover from syntax errors in the input, or recover from syntax errors using ad-hoc, implementation-specific features. The lack of proper error recovery makes PEG parsers unsuitable for using with Integrated Development Environments (IDEs), which need to build syntactic trees even for incomplete, syntactically invalid programs.

Parsing, Programming Languages, Computer Science, Error Handling

6 points by fanf2 21 days ago | 0 comments

Error Stacking in Rust (greptime.com)
A detailed exploration of error handling in Rust within GreptimeDB, proposing improvements and discussing future work.

Rust, Error Handling, Databases, Programming Languages

137 points by samanthasu 30 days ago | 102 comments

How we centralized and structured error handling in Golang (olivernguyen.io)
Handling errors in Go is simple and flexible – yet no structure!

Golang, Programming, Error Handling

171 points by thunderbong 31 days ago | 256 comments

Idiomatic Errors in Clojure (daveliepmann.com)
The idiomatic Clojure approach to error-handling is that there isn’t one. There’s a whole bunch.

Clojure, Programming Languages, Error Handling

97 points by harperlee 37 days ago | 42 comments

Union types ('enum types') would be complicated in Go (utoronto.ca)
Every so often, people wish that Go had enough features to build some equivalent of Rust's Result type or Option type, often so that Go programmers could have more ergonomic error handling.

Programming Languages, Go, Rust, Error Handling

28 points by misonic 46 days ago | 50 comments

Bringing Faster Exceptions to Rust (purplesyringa.moe)
Three months ago, I wrote about why you might want to use panics for error handling.

Rust, Programming Languages, Error Handling

103 points by stpn 72 days ago | 34 comments

The Ultimate Guide to Error Handling in Python (miguelgrinberg.com)
I often come across developers who know the mechanics of Python error handling well, yet when I review their code I find it to be far from good.

Python, Programming, Error Handling, Best Practices

96 points by kdamica 100 days ago | 28 comments

Rust error handling (bitfieldconsulting.com)
Things are always going wrong, as I’m sure you’ve noticed, and that applies to our programs too. Sometimes when a function call asks a question, there’s no answer to return—either because some error happened, or because the correct answer is, simply, “no results”.

Rust, Programming Languages, Error Handling

47 points by bitfield 126 days ago | 61 comments

Why I Prefer Exceptions to Error Values (cedardb.com)
Good error handling is key to robust programs, but often dreaded by programmers because there is always one more edge case.

Programming, Software Development, Error Handling

48 points by pfent 130 days ago | 21 comments

Guide to Error Handling in Rust (howtocodeit.com)

Rust, Programming, Error Handling

32 points by eventhelix 146 days ago | 25 comments

Ask HN: Why Implement "Something Went Wrong" Error Messages? (ycombinator.com)

Web Development, User Experience, Error Handling

12 points by MollyRealized 147 days ago | 21 comments

"We ran out of columns" (jimmyhmiller.github.io)

Software, Development, Error Handling, Programming

1641 points by poidos 168 days ago | 565 comments

A new approach to error handling (boomla.com)