BUG: Fails to keep a space before range .. when its LHS is a binary operation whose RHS is a float literal ending with . #6175
Description
I wonder how I can make the title short 🤔
In the following code, the space between 1. and .. must be kept, as together they form an illegal token ....
fn main() {
let a = 0. + 1. ..2.;
}Expected: no changes, found:
fn main() {
let a = 0. + 1...2.;
}Related: #3854 , but it only handles the case when LHS of .. is not a binary expression. Indeed, this code is not modified by rustfmt as expected:
fn main() {
let a = 1. ..2.;
}