miniblog.

Compiler error messages is such a deep topic. Even in rustc, a mature compiler that invests effort in diagnostic quality, I find interesting issues every few months. (The majority have been fixed pretty quickly, so it's really rewarding to file issues.)

I've been using "Expected Int, but got String" for my type error messages, but I've been wondering if I could do better. "Expected Int here, but this value has type String" or "This expression requires Int, but the value is String". Do you have a favourite?

I'm increasingly doubtful that commit messages should be entirely immutable. I sometimes find myself editing or commenting on merged pull requests, to help future readers. Phabricator appended a URL to commit messages, which helped. In principle PR merging could do the same thing.