33ec1823d7
When writing positional arguments after named arguments in the `format!()` and `println!()` macros, provide a targeted diagnostic.
17 lines
638 B
Rust
17 lines
638 B
Rust
fn main() {
|
|
let foo = "";
|
|
let bar = "";
|
|
format!(); //~ ERROR requires at least a format string argument
|
|
format!(struct); //~ ERROR expected expression
|
|
format!("s", name =); //~ ERROR expected expression
|
|
format!(
|
|
"s {foo} {} {}",
|
|
foo = foo,
|
|
bar, //~ ERROR positional arguments cannot follow named arguments
|
|
);
|
|
format!("s {foo}", foo = struct); //~ ERROR expected expression
|
|
format!("s", struct); //~ ERROR expected expression
|
|
|
|
// This error should come after parsing errors to ensure they are non-fatal.
|
|
format!(123); //~ ERROR format argument must be a string literal
|
|
}
|