Comment by kccqzy
5 hours ago
I don’t need to write examples because the article has plenty. All the fixes that Waffle needs to fix are precisely the code that behaves in a surprising way.
5 hours ago
I don’t need to write examples because the article has plenty. All the fixes that Waffle needs to fix are precisely the code that behaves in a surprising way.
None of this has anything bad to say about coercion or fallback, it's a consequence of the fact that Rust is an expression-oriented language which had expressions (like `loop {}`) which logically evaluated to the never type when in return position, and yet did not have the machinery in place to support it as a proper concept anywhere outside of return position, and so they chose the unit type as a relatively benign alternative in those contexts, which caused no problems whatsoever until the day came when they decided to actually implement the never type.