[FIR] Unwrap flexible types in when exhaustiveness checker

^KT-56942 Fixed
2023-02-24 12:38:55 +02:00
parent 01c670194a
commit 0bbc61f459
8 changed files with 219 additions and 1 deletions
@@ -0,0 +1,51 @@
+// FIR_IDENTICAL
+// ISSUE: KT-56942
+// FILE: EnumJava.java
+public enum EnumJava {
+    JAVA_ONE, JAVA_TWO;
+
+    public static EnumJava provide() { return EnumJava.JAVA_ONE; }
+}
+
+// FILE: EnumProviderJava.java
+public class EnumProviderJava {
+    public static EnumJava provide() { return EnumJava.JAVA_ONE; }
+}
+
+
+// FILE: main.kt
+enum class EnumKotlin {
+    KOTLIN_ONE, KOTLIN_TWO;
+
+    companion object {
+        fun provide(): EnumKotlin = EnumKotlin.KOTLIN_ONE
+    }
+}
+
+fun test_1(ejp: EnumJava, ekp: EnumKotlin) {
+    <!NO_ELSE_IN_WHEN!>when<!> (ejp) {
+        EnumJava.JAVA_ONE -> {}
+    }
+
+    <!NO_ELSE_IN_WHEN!>when<!> (ekp) {
+        EnumKotlin.KOTLIN_ONE -> {}
+    }
+
+    <!NO_ELSE_IN_WHEN!>when<!> (EnumJava.provide()) {
+        EnumJava.JAVA_ONE -> {}
+    }
+
+    <!NO_ELSE_IN_WHEN!>when<!> (EnumKotlin.provide()) {
+        EnumKotlin.KOTLIN_ONE -> {}
+    }
+}
+
+fun test_2(ejp: EnumJava, ekp: EnumKotlin) {
+    <!NO_ELSE_IN_WHEN!>when<!> (ejp) {}
+
+    <!NO_ELSE_IN_WHEN!>when<!> (ekp) {}
+
+    <!NO_ELSE_IN_WHEN!>when<!> (EnumProviderJava.provide()) {}
+
+    <!NO_ELSE_IN_WHEN!>when<!> (EnumKotlin.provide()) {}
+}