DFA bug fix: assignment of unstable to stable uses predictable nullability (see test)

2015-12-07 11:46:37 +03:00
parent 96d0c4a1db
commit 2e73bcb3a6
4 changed files with 39 additions and 6 deletions
@@ -0,0 +1,18 @@
+class Foo(var x: Int?) {
+    init {
+        if (x != null) {
+            val y = x
+            // Error: x is not stable, Type(y) = Int?
+            <!SMARTCAST_IMPOSSIBLE!>x<!>.hashCode()
+            y<!UNSAFE_CALL!>.<!>hashCode()
+            if (y == x) {
+                // Still error
+                y<!UNSAFE_CALL!>.<!>hashCode()
+            }
+            if (x == null && y != x) {
+                // Still error
+                y<!UNSAFE_CALL!>.<!>hashCode()
+            }
+        }
+    }
+}