Support property delegation to inline class values (KT-27070)

2018-10-01 12:58:39 +03:00
parent 70e60ea9bc
commit 5480bf69e8
18 changed files with 582 additions and 16 deletions
@@ -0,0 +1,30 @@
+// !LANGUAGE: +InlineClasses
+// IGNORE_BACKEND: JVM_IR
+
+var setterInvoked = 0
+var backing = 42
+
+inline class Delegate(val ignored: Int) {
+
+    operator fun getValue(thisRef: Any?, prop: Any?) =
+        backing
+
+    operator fun setValue(thisRef: Any?, prop: Any?, newValue: Int) {
+        setterInvoked++
+        backing = newValue
+    }
+}
+
+var topLevelD by Delegate(0)
+
+fun box(): String {
+    if (topLevelD != 42) AssertionError()
+
+    topLevelD = 1234
+    if (topLevelD != 1234) throw AssertionError()
+    if (backing != 1234) throw AssertionError()
+
+    if (setterInvoked != 1) throw AssertionError()
+
+    return "OK"
+}