Android Extensions: Generate proper receiver for clearFindViewByIdCache() call (KT-19742)

compiler/backend/src/org/jetbrains/kotlin/codegen/ExpressionCodegen.java

@@ -1705,7 +1705,7 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
 
             Collection<ExpressionCodegenExtension> codegenExtensions = ExpressionCodegenExtension.Companion.getInstances(state.getProject());
             if (!codegenExtensions.isEmpty() && resolvedCall != null) {
-                ExpressionCodegenExtension.Context context = new ExpressionCodegenExtension.Context(typeMapper, v);
+                ExpressionCodegenExtension.Context context = new ExpressionCodegenExtension.Context(this, typeMapper, v);
                 KotlinType returnType = propertyDescriptor.getReturnType();
                 for (ExpressionCodegenExtension extension : codegenExtensions) {
                     if (returnType != null) {
@@ -2141,7 +2141,7 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
 
         Collection<ExpressionCodegenExtension> codegenExtensions = ExpressionCodegenExtension.Companion.getInstances(state.getProject());
         if (!codegenExtensions.isEmpty()) {
-            ExpressionCodegenExtension.Context context = new ExpressionCodegenExtension.Context(typeMapper, v);
+            ExpressionCodegenExtension.Context context = new ExpressionCodegenExtension.Context(this, typeMapper, v);
             for (ExpressionCodegenExtension extension : codegenExtensions) {
                 StackValue stackValue = extension.applyFunction(receiver, resolvedCall, context);
                 if (stackValue != null) return stackValue;

compiler/backend/src/org/jetbrains/kotlin/codegen/extensions/ExpressionCodegenExtension.kt

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.codegen.extensions
 
+import org.jetbrains.kotlin.codegen.ExpressionCodegen
 import org.jetbrains.kotlin.codegen.ImplementationBodyCodegen
 import org.jetbrains.kotlin.codegen.StackValue
 import org.jetbrains.kotlin.codegen.state.KotlinTypeMapper
@@ -28,6 +29,7 @@ interface ExpressionCodegenExtension {
             "org.jetbrains.kotlin.expressionCodegenExtension", ExpressionCodegenExtension::class.java)
 
     class Context(
+            val codegen: ExpressionCodegen,
             val typeMapper: KotlinTypeMapper,
             val v: InstructionAdapter
     )

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

@@ -103,11 +103,12 @@ abstract class AbstractAndroidExtensionsExpressionCodegenExtension : ExpressionC
         }
 
         if (containerOptions.containerType == AndroidContainerType.UNKNOWN) return null
+        val actualReceiver = StackValue.receiver(resolvedCall, receiver, c.codegen, null)
 
         return StackValue.functionCall(Type.VOID_TYPE) {
             val bytecodeClassName = c.typeMapper.mapType(container).internalName
 
-            receiver.put(c.typeMapper.mapType(container), it)
+            actualReceiver.put(c.typeMapper.mapType(container), it)
             it.invokevirtual(bytecodeClassName, CLEAR_CACHE_METHOD_NAME, "()V", false)
         }
     }

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

@@ -7,6 +7,7 @@ import android.view.View
 import android.widget.*
 import org.my.cool.MyButton
 import kotlinx.android.synthetic.main.layout.*
+import kotlinx.android.synthetic.clearFindViewByIdCache
 
 class R {
     class id {
@@ -36,7 +37,9 @@ class MyFragment(): Fragment() {
     override fun getView(): View = baseView
 
     public fun box(): String {
-        return if (login.toString() == "MyButton") "OK" else ""
+        val result = if (login.toString() == "MyButton") "OK" else ""
+        clearFindViewByIdCache()
+        return result
     }
 }
 

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

@@ -4,6 +4,7 @@ import android.app.Activity
 import android.view.View
 import android.widget.*
 import kotlinx.android.synthetic.main.layout.*
+import kotlinx.android.synthetic.clearFindViewByIdCache
 
 class R {
     class id {
@@ -32,11 +33,15 @@ class MyActivity(): Activity() {
         }
     }
 
-    public fun box(): String{
-        return if (textView1.toString() == "TextView" &&
-                    password.toString() == "EditText" &&
-                    login.toString() == "Button")
-            "OK" else ""
+    public fun box(): String {
+        val result = when {
+            textView1.toString() == "TextView" && password.toString() == "EditText" && login.toString() == "Button" -> "OK"
+            else -> ""
+        }
+
+        clearFindViewByIdCache()
+
+        return result
     }
 }