rust/src/test/compile-fail/unsafe-alt.rs

// error-pattern:invalidate reference i

tag foo { left({mutable x: int}); right(bool); }

fn main() {
    let x = left({mutable x: 10});
    alt x { left(i) { x = right(false); log i; } _ { } }
}
Rename alias to reference in docs and error messages Update docs to reflect new approach to aliases 2011-09-12 14:24:12 +02:00			`// error-pattern:invalidate reference i`
First take on an alias-safety checker The alias checker works by ensuring that any value to which an alias is created is rooted in some way that ensures it outlives the alias. It is now disallowed to create an alias to the content of a mutable box, or to a box hanging off a mutable field. There is also machinery in place to prevent assignment to local variables whenever they are the root of a live alias. 2011-06-06 15:22:13 +02:00
Apply implicit copying for unsafe references to alt patterns 2011-09-13 12:14:30 +02:00			`tag foo { left({mutable x: int}); right(bool); }`
First take on an alias-safety checker The alias checker works by ensuring that any value to which an alias is created is rooted in some way that ensures it outlives the alias. It is now disallowed to create an alias to the content of a mutable box, or to a box hanging off a mutable field. There is also machinery in place to prevent assignment to local variables whenever they are the root of a live alias. 2011-06-06 15:22:13 +02:00
			`fn main() {`
Apply implicit copying for unsafe references to alt patterns 2011-09-13 12:14:30 +02:00			`let x = left({mutable x: 10});`
Reformat for new syntax 2011-07-27 14:19:39 +02:00			`alt x { left(i) { x = right(false); log i; } _ { } }`
Reformat This changes the indexing syntax from .() to [], the vector syntax from ~[] to [] and the extension syntax from #fmt() to #fmt[] 2011-08-19 15:16:48 -07:00			`}`