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-rw-r--r--src/test/ui/issues/issue-13058.rs27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-13058.rs b/src/test/ui/issues/issue-13058.rs
new file mode 100644
index 000000000..a5806feb7
--- /dev/null
+++ b/src/test/ui/issues/issue-13058.rs
@@ -0,0 +1,27 @@
+use std::ops::Range;
+
+trait Itble<'r, T, I: Iterator<Item=T>> { fn iter(&'r self) -> I; }
+
+impl<'r> Itble<'r, usize, Range<usize>> for (usize, usize) {
+ fn iter(&'r self) -> Range<usize> {
+ let &(min, max) = self;
+ min..max
+ }
+}
+
+fn check<'r, I: Iterator<Item=usize>, T: Itble<'r, usize, I>>(cont: &T) -> bool
+{
+ let cont_iter = cont.iter();
+//~^ ERROR explicit lifetime required in the type of `cont` [E0621]
+ let result = cont_iter.fold(Some(0), |state, val| {
+ state.map_or(None, |mask| {
+ let bit = 1 << val;
+ if mask & bit == 0 {Some(mask|bit)} else {None}
+ })
+ });
+ result.is_some()
+}
+
+fn main() {
+ check(&(3, 5));
+}