[FE 1.0] Support java sealed classes

^KT-46778 Fixed
2021-07-14 11:35:20 +03:00
parent 972211f8e6
commit fa1d09c778
32 changed files with 365 additions and 38 deletions
@@ -0,0 +1,44 @@
+// !DIAGNOSTICS: -UNUSED_VARIABLE
+// ISSUE: KT-41215, KT-43551
+
+// FILE: Base.java
+public sealed class Base permits A, B {}
+
+// FILE: A.java
+public final class A extends Base {}
+
+// FILE: B.java
+public sealed class B extends Base permits B.C, B.D {
+    public static final class C implements B {}
+
+    public static non-sealed class D extends B {}
+}
+
+// FILE: main.kt
+fun test_ok_1(base: Base) {
+    val x = when (base) {
+        is A -> 1
+        is B -> 2
+    }
+}
+
+fun test_ok_2(base: Base) {
+    val x = when (base) {
+        is A -> 1
+        is B.C -> 2
+        is B.D -> 3
+    }
+}
+
+fun test_error_1(base: Base) {
+    val x = <!NO_ELSE_IN_WHEN!>when<!> (base) {
+        is A -> 1
+    }
+}
+
+fun test_error_2(base: Base) {
+    val x = <!NO_ELSE_IN_WHEN!>when<!> (base) {
+        is A -> 1
+        is B.C -> 2
+    }
+}