// check-pass // run-rustfix fn main() { let mut _x: usize; _x = 1; println!("_x is {_x}", _x = 5); //~^ WARNING named argument `_x` is not used by name [named_arguments_used_positionally] //~| HELP use the named argument by name to avoid ambiguity println!("_x is {y}", y = _x); //~^ WARNING named argument `y` is not used by name [named_arguments_used_positionally] //~| HELP use the named argument by name to avoid ambiguity println!("first positional arg {}, second positional arg {}, _x is {y}", 1, 2, y = _x); //~^ WARNING named argument `y` is not used by name [named_arguments_used_positionally] //~| HELP use the named argument by name to avoid ambiguity let mut _x: usize; _x = 1; let _f = format!("_x is {_x}", _x = 5); //~^ WARNING named argument `_x` is not used by name [named_arguments_used_positionally] //~| HELP use the named argument by name to avoid ambiguity let _f = format!("_x is {y}", y = _x); //~^ WARNING named argument `y` is not used by name [named_arguments_used_positionally] //~| HELP use the named argument by name to avoid ambiguity let _f = format!("first positional arg {}, second positional arg {}, _x is {y}", 1, 2, y = _x); //~^ WARNING named argument `y` is not used by name [named_arguments_used_positionally] //~| HELP use the named argument by name to avoid ambiguity let s = "0.009"; // Confirm that named arguments used in formatting are correctly considered. println!(".{:0<width$}", s, width = _x); let region = "abc"; let width = 8; let ls = "abcde"; let full = "abcde"; // Confirm that named arguments used in formatting are correctly considered. println!( "| {r:rw$?} | {ui:4?} | {v}", r = region, rw = width, ui = ls, v = full, ); // Confirm that named arguments used in formatting are correctly considered. println!("{:.a$}", "aaaaaaaaaaaaaaaaaa", a = 4); // Confirm that named arguments used in formatting are correctly considered. println!("{:._a$}", "aaaaaaaaaaaaaaaaaa", _a = 4); }