IR KT-50258 rewrite enum-based 'when' more carefully

2021-12-21 06:06:45 +00:00
parent e17f121b23
commit 8905586cbb
16 changed files with 308 additions and 28 deletions
@@ -0,0 +1,21 @@
+enum class ABCD {
+    A, B, C, D
+}
+
+fun test(x: ABCD, y: ABCD, ok: String): String =
+    when (x) {
+        ABCD.A, ABCD.B ->
+            when (y) {
+                ABCD.A, ABCD.B -> ok
+                ABCD.C, ABCD.D -> y.toString()
+            }
+        ABCD.C, ABCD.D ->
+            x.toString()
+    }
+
+fun box(): String =
+    test(ABCD.B, ABCD.A, "O") + test(ABCD.A, ABCD.B, "K")
+
+// CHECK_BYTECODE_TEXT
+// JVM_IR_TEMPLATES
+// 2 (TABLE|LOOKUP)SWITCH