diff options
Diffstat (limited to 'src/test/ui/issues/issue-21245.rs')
-rw-r--r-- | src/test/ui/issues/issue-21245.rs | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/src/test/ui/issues/issue-21245.rs b/src/test/ui/issues/issue-21245.rs deleted file mode 100644 index c8e55a0cc..000000000 --- a/src/test/ui/issues/issue-21245.rs +++ /dev/null @@ -1,56 +0,0 @@ -// check-pass -#![allow(dead_code)] -// Regression test for issue #21245. Check that we are able to infer -// the types in these examples correctly. It used to be that -// insufficient type propagation caused the type of the iterator to be -// incorrectly unified with the `*const` type to which it is coerced. - -// pretty-expanded FIXME #23616 - -use std::ptr; - -trait IntoIterator { - type Iter: Iterator; - - fn into_iter2(self) -> Self::Iter; -} - -impl<I> IntoIterator for I where I: Iterator { - type Iter = I; - - fn into_iter2(self) -> I { - self - } -} - -fn desugared_for_loop_bad<T>(v: Vec<T>) { - match IntoIterator::into_iter2(v.iter()) { - mut iter => { - loop { - match ::std::iter::Iterator::next(&mut iter) { - ::std::option::Option::Some(x) => { - unsafe { ptr::read(x); } - }, - ::std::option::Option::None => break - } - } - } - } -} - -fn desugared_for_loop_good<T>(v: Vec<T>) { - match v.iter().into_iter() { - mut iter => { - loop { - match ::std::iter::Iterator::next(&mut iter) { - ::std::option::Option::Some(x) => { - unsafe { ptr::read(x); } - }, - ::std::option::Option::None => break - } - } - } - } -} - -fn main() {} |