Rust's dbg! macro (new in 1.32) is delightful. You write dbg!(my_var) and you get a print statement that writes:
[src/my_file.rs:123] my_var = "value of my_var"
It's a huge ergonomic help when debugging!
miniblog.
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Some delightful examples of good compiler error messages in the latest Gleam release:
I've been using a 'golden tests' library for testing my parser, and it's just delightful. Rather than writing a verbose assertion about the resulting AST, I can just re-run my tests until the output looks good!
I've been using a 'golden tests' library for testing my parser, and it's just delightful. Rather than writing a verbose assertion about the resulting AST, I can just re-run my tests until the output looks good!
I'm using https://github.com/jfecher/golden-tests currently, which can automatically update the output in the file.
Example commit: