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Add a never type option to make diverging blocks `()` by WaffleLapkin · Pull Req...
source link: https://github.com/rust-lang/rust/pull/122843
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More experiments for the blood god T-lang!
Usage example:
#![allow(internal_features)]
#![feature(never_type, rustc_attrs)]
#![rustc_never_type_options(diverging_block_default = "unit")]
fn main() {
let _: u8 = { //~ error: expected `u8`, found `()`
return;
};
}r? compiler-errors
I'm not sure how I feel about parsing the attribute every time we create FnCtxt. There must be a better way to do this, right?
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