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Rehabilitate an unboxed closure test

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This test works as a regression test for issue #17655.  It also
exercises mutation of by-ref upvars.
This commit is contained in:
Brian Koropoff 2014-10-02 19:48:07 -07:00
parent c4c19fe960
commit 39344c2d7e
1 changed files with 2 additions and 7 deletions
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9
src/test/run-pass/capture-clauses-unboxed-closures.rs
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@ -8,13 +8,9 @@
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// ignore-test
//
// This is ignored because it depends on #16122.
#![feature(overloaded_calls, unboxed_closures)]
fn each<'a,T,F:|&mut: &'a T|>(x: &'a [T], mut f: F) {
fn each<'a,T,F:FnMut(&'a T)>(x: &'a [T], mut f: F) {
for val in x.iter() {
f(val)
}
@ -23,7 +19,6 @@ fn each<'a,T,F:|&mut: &'a T|>(x: &'a [T], mut f: F) {
fn main() {
let mut sum = 0u;
let elems = [ 1u, 2, 3, 4, 5 ];
each(elems, ref |&mut: val: &uint| sum += *val);
each(elems, |&mut: val: &uint| sum += *val);
assert_eq!(sum, 15);
}