rust/src/test/run-pass/issues/issue-20575.rs

// run-pass
// Test that overloaded calls work with zero arity closures

// pretty-expanded FIXME #23616

fn main() {
    let functions: [Box<Fn() -> Option<()>>; 1] = [Box::new(|| None)];

    let _: Option<Vec<()>> = functions.iter().map(|f| (*f)()).collect();
}
Add `// run-pass` annotations to all the tests under `ui/run-pass/`. (I may have accidentally added it to some auxilliary crates as well; my emacs-macro-based methodology was pretty crude.) 2018-08-30 07:18:55 -05:00			`// run-pass`
add test for issue #20575 closes #20575 2015-01-12 17:40:19 -06:00			`// Test that overloaded calls work with zero arity closures`

rustdoc: Replace no-pretty-expanded with pretty-expanded Now that features must be declared expanded source often does not compile. This adds 'pretty-expanded' to a bunch of test cases that still work. 2015-03-22 15:13:15 -05:00			`// pretty-expanded FIXME #23616`

add test for issue #20575 closes #20575 2015-01-12 17:40:19 -06:00			`fn main() {`
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 02:52:21 -06:00			`let functions: [Box<Fn() -> Option<()>>; 1] = [Box::new(\|\| None)];`
add test for issue #20575 closes #20575 2015-01-12 17:40:19 -06:00
			`let _: Option<Vec<()>> = functions.iter().map(\|f\| (*f)()).collect();`
			`}`