Android Extensions: Fix compilation when LayoutContainer is used as an interface (KT-19753)

plugins/android-extensions/android-extensions-compiler/src/org/jetbrains/kotlin/android/synthetic/codegen/ResourcePropertyStackValue.kt

@@ -17,6 +17,7 @@
 package org.jetbrains.kotlin.android.synthetic.codegen
 
 import kotlinx.android.extensions.CacheImplementation
+import kotlinx.android.extensions.LayoutContainer
 import org.jetbrains.kotlin.android.synthetic.AndroidConst
 import org.jetbrains.kotlin.android.synthetic.codegen.AbstractAndroidExtensionsExpressionCodegenExtension.Companion.shouldCacheResource
 import org.jetbrains.kotlin.android.synthetic.codegen.AbstractAndroidExtensionsExpressionCodegenExtension.Companion.CACHED_FIND_VIEW_BY_ID_METHOD_NAME
@@ -78,7 +79,7 @@ class ResourcePropertyStackValue(
                 }
                 AndroidContainerType.LAYOUT_CONTAINER -> {
                     receiver.put(Type.getType("L${containerType.internalClassName};"), v)
-                    v.invokevirtual(containerType.internalClassName, "getEntityView", "()Landroid/view/View;", false)
+                    v.invokeinterface(Type.getType(LayoutContainer::class.java).internalName, "getContainerView", "()Landroid/view/View;")
                     getResourceId(v)
                     v.invokevirtual("android/view/View", "findViewById", "(I)Landroid/view/View;", false)
                 }

plugins/android-extensions/android-extensions-compiler/src/org/jetbrains/kotlin/android/synthetic/descriptors/ContainerOptionsProxy.kt

@@ -34,7 +34,7 @@ class ContainerOptionsProxy(val containerType: AndroidContainerType, val cache:
         private val CACHE_NAME = ContainerOptions::cache.name
 
         fun create(container: ClassDescriptor): ContainerOptionsProxy {
-            if (container.kind != ClassKind.CLASS) {
+            if (container.kind != ClassKind.CLASS && container.kind != ClassKind.INTERFACE) {
                 return ContainerOptionsProxy(AndroidContainerType.UNKNOWN, NO_CACHE)
             }
 
@@ -44,7 +44,10 @@ class ContainerOptionsProxy(val containerType: AndroidContainerType, val cache:
 
             if (anno == null) {
                 // Java classes (and Kotlin classes from other modules) does not support cache by default
-                val supportsCache = container.source is KotlinSourceElement && containerType.doesSupportCache
+                val supportsCache = container.kind == ClassKind.CLASS
+                                    && container.source is KotlinSourceElement
+                                    && containerType.doesSupportCache
+
                 return ContainerOptionsProxy(
                         containerType,
                         if (supportsCache) null else NO_CACHE) // `null` here means "use global cache implementation setting"

plugins/android-extensions/android-extensions-compiler/testData/codegen/android/androidEntity/0.kt

@@ -26,8 +26,12 @@ class MyActivity(): Activity() {
         }
     })
 
+    val entity2: LayoutContainer = entity
+
     public fun box(): String {
-        return if (entity.login.toString() == "Button") "OK" else ""
+        val o = if (entity.login.toString() == "Button") "O" else ""
+        val k = if (entity2.login.toString() == "Button") "K" else ""
+        return o + k // "OK"
     }
 }