Delegated Properties: Code generation for local properties (JVM)

compiler/testData/codegen/box/delegatedProperty/capturedLocalVal.kt

@@ -0,0 +1,14 @@
+package foo
+
+import kotlin.reflect.KProperty
+
+inline fun <T> run(f: () -> T) = f()
+
+class Delegate {
+    operator fun getValue(t: Any?, p: KProperty<*>): Int = 1
+}
+
+fun box(): String {
+    val prop: Int by Delegate()
+    return run { if (prop == 1) "OK" else "fail" }
+}

compiler/testData/codegen/box/delegatedProperty/capturedLocalValNoInline.kt

@@ -0,0 +1,14 @@
+package foo
+
+import kotlin.reflect.KProperty
+
+fun <T> run(f: () -> T) = f()
+
+class Delegate {
+    operator fun getValue(t: Any?, p: KProperty<*>): Int = 1
+}
+
+fun box(): String {
+    val prop: Int by Delegate()
+    return run { if (prop == 1) "OK" else "fail" }
+}

compiler/testData/codegen/box/delegatedProperty/capturedLocalVar.kt

@@ -0,0 +1,20 @@
+package foo
+
+import kotlin.reflect.KProperty
+
+inline fun <T> run(f: () -> T) = f()
+
+class Delegate {
+    var inner = 1
+    operator fun getValue(t: Any?, p: KProperty<*>): Int = inner
+    operator fun setValue(t: Any?, p: KProperty<*>, i: Int) {
+        inner = i
+    }
+}
+
+fun box(): String {
+    var prop: Int by Delegate()
+    run { prop = 2 }
+    if (prop != 2) return "fail get"
+    return run { if (prop != 2) "fail set" else "OK" }
+}

compiler/testData/codegen/box/delegatedProperty/capturedLocalVarNoInline.kt

@@ -0,0 +1,20 @@
+package foo
+
+import kotlin.reflect.KProperty
+
+fun <T> run(f: () -> T) = f()
+
+class Delegate {
+    var inner = 1
+    operator fun getValue(t: Any?, p: KProperty<*>): Int = inner
+    operator fun setValue(t: Any?, p: KProperty<*>, i: Int) {
+        inner = i
+    }
+}
+
+fun box(): String {
+    var prop: Int by Delegate()
+    run { prop = 2 }
+    if (prop != 2) return "fail get"
+    return run { if (prop != 2) "fail set" else "OK" }
+}

compiler/testData/codegen/box/delegatedProperty/localVal.kt

@@ -0,0 +1,12 @@
+package foo
+
+import kotlin.reflect.KProperty
+
+class Delegate {
+    operator fun getValue(t: Any?, p: KProperty<*>): Int = 1
+}
+
+fun box(): String {
+    val prop: Int by Delegate()
+    return if (prop == 1) "OK" else "fail"
+}

compiler/testData/codegen/box/delegatedProperty/localVar.kt

@@ -0,0 +1,19 @@
+package foo
+
+import kotlin.reflect.KProperty
+
+class Delegate {
+    var inner = 1
+    operator fun getValue(t: Any?, p: KProperty<*>): Int = inner
+    operator fun setValue(t: Any?, p: KProperty<*>, i: Int) {
+        inner = i
+    }
+}
+
+fun box(): String {
+    var prop: Int by Delegate()
+    if (prop != 1) return "fail get"
+    prop = 2
+    if (prop != 2) return "fail set"
+    return "OK"
+}

compiler/testData/codegen/script/localDelegatedProperty.kts

@@ -0,0 +1,14 @@
+import kotlin.reflect.KProperty
+
+class Delegate {
+    operator fun getValue(t: Any?, p: KProperty<*>): Int = 3
+}
+
+fun foo(): Int {
+    val prop: Int by Delegate()
+    return prop
+}
+
+val x = foo()
+
+// expected: x: 3