rust/tests/ui/hygiene/hygienic-label-1.rs

macro_rules! foo {
    () => { break 'x; } //~ ERROR use of undeclared label `'x`
}

pub fn main() {
    'x: loop { foo!(); }
}
Make break and continue hygienic Makes labelled loops hygiene by performing renaming of the labels defined in e.g. `'x: loop { ... }` and then used in break and continue statements within loop body so that they act hygienically when used with macros. Closes #12262. 2014-02-15 08:54:32 +00:00			`macro_rules! foo {`
Fix hygienic-label-x tests 2015-09-02 21:03:38 +00:00			() => { break 'x; } //~ ERROR use of undeclared label `'x`
Make break and continue hygienic Makes labelled loops hygiene by performing renaming of the labels defined in e.g. `'x: loop { ... }` and then used in break and continue statements within loop body so that they act hygienically when used with macros. Closes #12262. 2014-02-15 08:54:32 +00:00			`}`

			`pub fn main() {`
Make `SEMICOLON_IN_EXPRESSIONS_FROM_MACROS` warn by default 2021-07-22 19:28:02 +00:00			`'x: loop { foo!(); }`
Make break and continue hygienic Makes labelled loops hygiene by performing renaming of the labels defined in e.g. `'x: loop { ... }` and then used in break and continue statements within loop body so that they act hygienically when used with macros. Closes #12262. 2014-02-15 08:54:32 +00:00			`}`