rust/tests/ui/issues/issue-12127.rs

#![feature(unboxed_closures, tuple_trait)]

fn to_fn_once<A:std::marker::Tuple,F:FnOnce<A>>(f: F) -> F { f }
fn do_it(x: &isize) { }

fn main() {
    let x: Box<_> = Box::new(22);
    let f = to_fn_once(move|| do_it(&*x));
    to_fn_once(move|| {
        f();
        f();
        //~^ ERROR: use of moved value: `f`
    })()
}
Adjust diagnostics, bless tests 2022-07-30 05:37:48 +00:00			`#![feature(unboxed_closures, tuple_trait)]`
Test fixes and rebase conflicts 2015-01-08 02:53:58 +00:00
Adjust diagnostics, bless tests 2022-07-30 05:37:48 +00:00			`fn to_fn_once<A:std::marker::Tuple,F:FnOnce<A>>(f: F) -> F { f }`
Update compile fail tests to use isize. 2015-01-08 10:54:35 +00:00			`fn do_it(x: &isize) { }`
Mostly rote conversion of `proc()` to `move\|\|` (and occasionally `Thunk::new`) 2014-11-26 13:12:18 +00:00
rustc: Prevent repeated moves out of proc upvars This fixes the categorization of the upvars of procs (represented internally as once fns) to consider usage to require a loan. In doing so, upvars are no longer allowed to be moved out of repeatedly in loops and such. Closes #10398 Closes #12041 Closes #12127 2014-04-08 23:59:18 +00:00			`fn main() {`
Remove even more box syntax uses from src/test Prior work, notably 6550021124451628b1efc60c59284465b109e3aa from #88316 has removed box syntax from most of the testsuite. However, some tests were left out. This commit removes box_syntax uses from more locations in src/test. Some tests that are very box syntax specific are not being migrated. 2022-07-07 02:36:10 +00:00			`let x: Box<_> = Box::new(22);`
Update compile-fail tests to use the expected type to force the closure kind, thereby detecting what happens if there are mismatches. Simply removing the `:` annotations caused most of these tests to pass or produce other errors, because the inference would convert the closure into a more appropriate kind. (The ability to override the inference by using the expected type is an important backdoor partly for this reason.) 2015-02-03 16:32:26 +00:00			`let f = to_fn_once(move\|\| do_it(&*x));`
			`to_fn_once(move\|\| {`
rustc: Prevent repeated moves out of proc upvars This fixes the categorization of the upvars of procs (represented internally as once fns) to consider usage to require a loan. In doing so, upvars are no longer allowed to be moved out of repeatedly in loops and such. Closes #10398 Closes #12041 Closes #12127 2014-04-08 23:59:18 +00:00			`f();`
			`f();`
			//~^ ERROR: use of moved value: `f`
			`})()`
			`}`