rust/src/test/ui/borrowck/immutable-arg.rs

//compile-flags: -Z borrowck=compare

fn foo(_x: u32) {
    _x = 4;
    //~^ ERROR cannot assign to immutable argument `_x` (Mir)
    //~^^ ERROR cannot assign twice to immutable variable `_x` (Ast)
}

fn main() {}
Remove mir::StatementKind::EndRegion Since lexical MIR borrow check is gone, and validation no longer uses these, they can be removed. 2018-11-10 23:02:13 +00:00			`//compile-flags: -Z borrowck=compare`
Assignment to immutable argument: diagnostic tweak 2018-01-07 17:02:26 -08:00
			`fn foo(_x: u32) {`
			`_x = 4;`
Modify message to match label 2018-01-09 19:10:45 -08:00			//~^ ERROR cannot assign to immutable argument `_x` (Mir)
Assignment to immutable argument: diagnostic tweak 2018-01-07 17:02:26 -08:00			//~^^ ERROR cannot assign twice to immutable variable `_x` (Ast)
			`}`

			`fn main() {}`