'Cast can never succeed' diagnostics improved

2013-09-04 13:12:07 +04:00
parent 9f4beece64
commit a28d211442
6 changed files with 250 additions and 9 deletions
@@ -0,0 +1,46 @@
+// !DIAGNOSTICS: -WARNING +CAST_NEVER_SUCCEEDS
+trait T1
+trait T2
+trait T3
+open class OC1: T1
+open class OC2: OC1(), T2
+class FC1: OC2(), T3
+trait T4: OC1
+trait T5: T2
+
+fun test<TP1: OC1, TP2: T2, TP3: OC2>(
+    t2: T2,
+    t4: T4,
+    fc1: FC1,
+    oc1: OC1,
+    oc2: OC2,
+    tp1: TP1,
+    tp2: TP2
+) {
+  fc1 as FC1
+  fc1 as OC1
+  fc1 as T1
+  fc1 as TP1
+
+  oc1 as FC1
+  oc1 as OC2
+  oc2 as OC1
+  oc1 as T2
+  oc1 as T1
+  oc1 as TP1
+  oc1 as TP2
+
+  t2 as FC1
+  t2 as OC2
+  t4 as OC1
+  t2 as T2
+  t2 as T5
+  t2 as TP2
+
+  tp1 as FC1
+  tp1 as OC1
+  tp1 as OC2
+  tp2 as T2
+  tp2 as T5
+  tp1 as TP3
+}