summaryrefslogtreecommitdiffstats
path: root/src/test/ui/recursion/issue-95134.rs
diff options
context:
space:
mode:
Diffstat (limited to 'src/test/ui/recursion/issue-95134.rs')
-rw-r--r--src/test/ui/recursion/issue-95134.rs28
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/recursion/issue-95134.rs b/src/test/ui/recursion/issue-95134.rs
new file mode 100644
index 000000000..adc9c6ee2
--- /dev/null
+++ b/src/test/ui/recursion/issue-95134.rs
@@ -0,0 +1,28 @@
+// build-fail
+// compile-flags: -Copt-level=0
+//~^^ ERROR overflow evaluating the requirement
+
+pub fn encode_num<Writer: ExampleWriter>(n: u32, mut writer: Writer) -> Result<(), Writer::Error> {
+ if n > 15 {
+ encode_num(n / 16, &mut writer)?;
+ }
+ Ok(())
+}
+
+pub trait ExampleWriter {
+ type Error;
+}
+
+impl<'a, T: ExampleWriter> ExampleWriter for &'a mut T {
+ type Error = T::Error;
+}
+
+struct EmptyWriter;
+
+impl ExampleWriter for EmptyWriter {
+ type Error = ();
+}
+
+fn main() {
+ encode_num(69, &mut EmptyWriter).unwrap();
+}