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-rw-r--r--src/test/ui/associated-types/associated-types-enum-field-named.rs35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/associated-types/associated-types-enum-field-named.rs b/src/test/ui/associated-types/associated-types-enum-field-named.rs
new file mode 100644
index 000000000..896d67213
--- /dev/null
+++ b/src/test/ui/associated-types/associated-types-enum-field-named.rs
@@ -0,0 +1,35 @@
+// run-pass
+// Test associated types appearing in struct-like enum variants.
+
+
+use self::VarValue::*;
+
+pub trait UnifyKey {
+ type Value;
+ fn to_index(&self) -> usize;
+}
+
+pub enum VarValue<K:UnifyKey> {
+ Redirect { to: K },
+ Root { value: K::Value, rank: usize },
+}
+
+fn get<'a,K:UnifyKey<Value=Option<V>>,V>(table: &'a Vec<VarValue<K>>, key: &K) -> &'a Option<V> {
+ match table[key.to_index()] {
+ VarValue::Redirect { to: ref k } => get(table, k),
+ VarValue::Root { value: ref v, rank: _ } => v,
+ }
+}
+
+impl UnifyKey for usize {
+ type Value = Option<char>;
+ fn to_index(&self) -> usize { *self }
+}
+
+fn main() {
+ let table = vec![/* 0 */ Redirect { to: 1 },
+ /* 1 */ Redirect { to: 3 },
+ /* 2 */ Root { value: Some('x'), rank: 0 },
+ /* 3 */ Redirect { to: 2 }];
+ assert_eq!(get(&table, &0), &Some('x'));
+}