rust-lang
Turn autoimport from an assist into a quickfix
Which will allow e.g. write!() to import when std::fmt::Write/std::io::Write are not in scope, but there is no explicit method call to trigger the assist on.
rust-analyzer already has an assist for that, https://rust-analyzer.github.io/book/assists.html#auto_import.
No it doesn't:
use std::fs::File;
fn main() {
let f = File::create("hello_world").unwrap();
write!(f, "hello world");
}
Error appears on f, no assist.
That's because it's a macro, and there is no explicit method invocation.
To do something here we would need to emit our own error, and it won't happen soon.
Even when we have the diagnostic it may prove unfeasible to have a quickfix for this macro.
But I can reopen the issue and edit it to clarify that we want to change the assist into a quickfix.