Fix for KT-14597: "When" over smartcasted enum is broken and breaks all other "when"

#KT-14597 Fixed
2017-01-23 16:04:26 +01:00
parent ee9a174c1f
commit df8394bcd2
22 changed files with 443 additions and 8 deletions
@@ -0,0 +1,62 @@
+enum class En { A, B, С }
+
+fun main(args: Array<String>) {
+
+}
+
+fun box(): String {
+    var res1 = "fail"
+    var res2 = "fail2"
+
+    val en: En = En.A
+    when (en) {
+        En.A -> {res1 = ""}
+        En.B -> {}
+        En.С -> {}
+    }
+
+    when (en as En) {
+        En.A -> {res1 += "O"}
+        En.B -> {}
+        En.С -> {}
+    }
+
+
+    // nullable variable
+    val en2: Any? = En.A
+    if (en2 is En) {
+        when (en2) {
+            En.A -> {res1 += "K"}
+            En.B -> {}
+            En.С -> {}
+        }
+
+        when (en2 as En) {
+            En.A -> {res2 = ""}
+            En.B -> {}
+            En.С -> {}
+        }
+    }
+
+
+    // not nullable variable
+    val en1: Any = En.A
+    if (en1 is En) {
+        when (en1) {
+            En.A -> {res2 += "O"}
+            En.B -> {}
+            En.С -> {}
+        }
+        // Working without other examples
+        when (en1 as En) {
+            En.A -> {res2 += "K"}
+            En.B -> {}
+            En.С -> {}
+        }
+    }
+
+    if (res1 != res2) return "different results: $res1 != $res2"
+    return res1
+}
+
+// 6 TABLESWITCH