rust/tests/ui/macros/span-covering-argument-1.rs

macro_rules! bad {
    ($s:ident whatever) => {
        {
            let $s = 0;
            *&mut $s = 0;
            //~^ ERROR cannot borrow `foo` as mutable, as it is not declared as mutable [E0596]
        }
    }
}

fn main() {
    bad!(foo whatever);
}
Minimize weird spans involving macro context Sometimes the parser attempts to synthesize spans from within a macro context with the span for the captured argument, leading to non-sensical spans with very bad output. Given that an incorrect span is worse than a partially incomplete span, when detecting this situation return only one of the spans without mergin them. 2018-02-01 11:51:49 -08:00			`macro_rules! bad {`
			`($s:ident whatever) => {`
			`{`
			`let $s = 0;`
			`*&mut $s = 0;`
update tests for migrate mode by default 2019-04-22 08:40:08 +01:00			//~^ ERROR cannot borrow `foo` as mutable, as it is not declared as mutable [E0596]
Minimize weird spans involving macro context Sometimes the parser attempts to synthesize spans from within a macro context with the span for the captured argument, leading to non-sensical spans with very bad output. Given that an incorrect span is worse than a partially incomplete span, when detecting this situation return only one of the spans without mergin them. 2018-02-01 11:51:49 -08:00			`}`
			`}`
			`}`

			`fn main() {`
			`bad!(foo whatever);`
			`}`