rust/tests/ui/issues/issue-4335.rs

#![feature(fn_traits)]

fn id<T>(t: T) -> T { t }

fn f<'r, T>(v: &'r T) -> Box<dyn FnMut() -> T + 'r> {
    id(Box::new(|| *v))
        //~^ ERROR E0507
}

fn main() {
    let v = &5;
    println!("{}", f(v).call_mut(()));
}
rustc: rework stability to be on-demand for type-directed lookup. 2016-11-10 17:08:21 +00:00			`#![feature(fn_traits)]`

testsuite: Add xfailed test for #4335 2013-01-20 01:39:15 +00:00			`fn id<T>(t: T) -> T { t }`

Update ui test suite to use dyn 2019-05-28 18:46:13 +00:00			`fn f<'r, T>(v: &'r T) -> Box<dyn FnMut() -> T + 'r> {`
Switched to Box::new in many places. Many of the modifications putting in `Box::new` calls also include a pointer to Issue 22405, which tracks going back to `box <expr>` if possible in the future. (Still tried to use `Box<_>` where it sufficed; thus some tests still have `box_syntax` enabled, as they use a mix of `box` and `Box::new`.) Precursor for overloaded-`box` and placement-`in`; see Issue 22181. 2015-02-15 08:52:21 +00:00			`id(Box::new(\|\| *v))`
Simplify `mem_categorization` * `Place` is no longer recursive. * The `cmt` type alias is removed * `Upvar` places no longer include the dereferences of the environment closure or of by reference captures. * All non-dereference projections are combined to a single variant. * Various unnecessary types and methods have been removed. 2019-11-08 22:54:00 +00:00			`//~^ ERROR E0507`
librustc: Remove remaining uses of `&fn()` in favor of `\|\|`. 2013-11-20 01:36:32 +00:00			`}`
testsuite: Add xfailed test for #4335 2013-01-20 01:39:15 +00:00
			`fn main() {`
Kill more `isize`s 2015-01-31 16:23:42 +00:00			`let v = &5;`
fix cfail tests 2015-01-03 15:45:00 +00:00			`println!("{}", f(v).call_mut(()));`
librustc: Replace `impl Type : Trait` with `impl Trait for Type`. rs=implflipping 2013-02-14 19:47:00 +00:00			`}`