Correct boxing for functional types containing inline classes

2018-02-09 08:48:15 +03:00
parent a8a9f774d0
commit d606e5bc89
10 changed files with 111 additions and 1 deletions
@@ -0,0 +1,27 @@
+// !LANGUAGE: +InlineClasses
+
+inline class UInt(val value: Int)
+inline class ULong(val value: Long)
+
+fun foo(u: UInt, f: (UInt) -> ULong): ULong = f(u)
+
+fun takeUInt(u: UInt) {}
+
+fun test() {
+    val u = UInt(0)
+    val l = foo(u) { // box unbox UInt
+        takeUInt(it)
+
+        ULong(0) // box ULong
+    } // unbox ULong
+}
+
+// 1 INVOKESTATIC UInt\$Erased.box
+// 1 INVOKEVIRTUAL UInt.unbox
+
+// 1 INVOKESTATIC ULong\$Erased.box
+// 1 INVOKEVIRTUAL ULong.unbox
+
+// 0 valueOf
+// 0 intValue
+// 0 longValue