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-rw-r--r--src/test/ui/regions/regions-infer-paramd-indirect.rs27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-infer-paramd-indirect.rs b/src/test/ui/regions/regions-infer-paramd-indirect.rs
new file mode 100644
index 000000000..978c84e53
--- /dev/null
+++ b/src/test/ui/regions/regions-infer-paramd-indirect.rs
@@ -0,0 +1,27 @@
+// Check that we correctly infer that b and c must be region
+// parameterized because they reference a which requires a region.
+
+type A<'a> = &'a isize;
+type B<'a> = Box<A<'a>>;
+
+struct C<'a> {
+ f: Box<B<'a>>
+}
+
+trait SetF<'a> {
+ fn set_f_ok(&mut self, b: Box<B<'a>>);
+ fn set_f_bad(&mut self, b: Box<B>);
+}
+
+impl<'a> SetF<'a> for C<'a> {
+ fn set_f_ok(&mut self, b: Box<B<'a>>) {
+ self.f = b;
+ }
+
+ fn set_f_bad(&mut self, b: Box<B>) {
+ self.f = b;
+ //~^ ERROR lifetime may not live long enough
+ }
+}
+
+fn main() {}