Use 'DefaultImpls' as owner for interface local delegated properties

#KT-19690 Fixed

compiler/backend/src/org/jetbrains/kotlin/codegen/InterfaceImplBodyCodegen.kt

@@ -22,20 +22,14 @@ import org.jetbrains.kotlin.backend.common.bridges.firstSuperMethodFromKotlin
 import org.jetbrains.kotlin.codegen.context.ClassContext
 import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.descriptors.*
-import org.jetbrains.kotlin.descriptors.impl.ClassDescriptorImpl
-import org.jetbrains.kotlin.load.java.JvmAbi
 import org.jetbrains.kotlin.load.java.descriptors.JavaMethodDescriptor
-import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.KtPureClassOrObject
 import org.jetbrains.kotlin.resolve.DescriptorToSourceUtils
-import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOrigin
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOriginKind
 import org.jetbrains.kotlin.resolve.jvm.jvmSignature.JvmMethodSignature
-import org.jetbrains.kotlin.resolve.scopes.MemberScope
 import org.jetbrains.org.objectweb.asm.MethodVisitor
 import org.jetbrains.org.objectweb.asm.Opcodes.*
-import java.util.*
 
 class InterfaceImplBodyCodegen(
         aClass: KtPureClassOrObject,
@@ -47,12 +41,14 @@ class InterfaceImplBodyCodegen(
     private var isAnythingGenerated: Boolean = false
         get() = (v as InterfaceImplClassBuilder).isAnythingGenerated
 
+    private val defaultImplType = typeMapper.mapDefaultImpls(descriptor)
+
     override fun generateDeclaration() {
         val codegenFlags = ACC_PUBLIC or ACC_FINAL or ACC_SUPER
         val flags = if (state.classBuilderMode == ClassBuilderMode.LIGHT_CLASSES) codegenFlags or ACC_STATIC else codegenFlags
         v.defineClass(
                 myClass.psiOrParent, state.classFileVersion, flags,
-                typeMapper.mapDefaultImpls(descriptor).internalName,
+                defaultImplType.internalName,
                 null, "java/lang/Object", ArrayUtil.EMPTY_STRING_ARRAY
         )
         v.visitSource(myClass.containingKtFile.name, null)
@@ -154,7 +150,7 @@ class InterfaceImplBodyCodegen(
     override fun done() {
         super.done()
         if (!isAnythingGenerated) {
-            state.factory.removeClasses(setOf(typeMapper.mapDefaultImpls(descriptor).internalName))
+            state.factory.removeClasses(setOf(defaultImplType.internalName))
         }
     }
 
@@ -183,4 +179,8 @@ class InterfaceImplBodyCodegen(
             return super.newMethod(origin, access, name, desc, signature, exceptions)
         }
     }
+
+    override fun generateSyntheticPartsBeforeBody() {
+        generatePropertyMetadataArrayFieldIfNeeded(defaultImplType)
+    }
 }

compiler/backend/src/org/jetbrains/kotlin/codegen/binding/CodegenAnnotatingVisitor.java

@@ -38,6 +38,7 @@ import org.jetbrains.kotlin.descriptors.annotations.Annotations;
 import org.jetbrains.kotlin.descriptors.impl.LocalVariableDescriptor;
 import org.jetbrains.kotlin.fileClasses.FileClasses;
 import org.jetbrains.kotlin.fileClasses.JvmFileClassesProvider;
+import org.jetbrains.kotlin.load.java.JvmAbi;
 import org.jetbrains.kotlin.load.java.sam.SamConstructorDescriptor;
 import org.jetbrains.kotlin.load.kotlin.TypeMappingConfiguration;
 import org.jetbrains.kotlin.name.ClassId;
@@ -440,9 +441,15 @@ class CodegenAnnotatingVisitor extends KtVisitorVoid {
             // The first "real" containing class (not a synthetic class for lambda) is the owner of the delegated property metadata
             if (!(descriptor instanceof SyntheticClassDescriptorForLambda)) {
                 ClassId classId = DescriptorUtilsKt.getClassId(descriptor);
-                return classId != null
+                if (classId == null) {
-                       ? AsmUtil.asmTypeByClassId(classId)
+                    return CodegenBinding.getAsmType(bindingContext, descriptor);
-                       : CodegenBinding.getAsmType(bindingContext, descriptor);
+                }
+
+                return AsmUtil.asmTypeByClassId(
+                        DescriptorUtils.isInterface(descriptor)
+                        ? classId.createNestedClassId(Name.identifier(JvmAbi.DEFAULT_IMPLS_CLASS_NAME))
+                        : classId
+                );
             }
         }
 

compiler/testData/codegen/box/delegatedProperty/local/kt19690.kt

@@ -0,0 +1,17 @@
+//WITH_REFLECT
+
+import kotlin.properties.Delegates
+
+interface MyInterface {
+    fun something(): String {
+        var foo: String by Delegates.notNull();
+        foo = "OK"
+        return foo
+    }
+}
+
+fun box(): String {
+    return object : MyInterface {
+
+    }.something()
+}

compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java

@@ -7012,6 +7012,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
                 doTest(fileName);
             }
 
+            @TestMetadata("kt19690.kt")
+            public void testKt19690() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/delegatedProperty/local/kt19690.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("localVal.kt")
             public void testLocalVal() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/delegatedProperty/local/localVal.kt");

compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java

@@ -7012,6 +7012,12 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("kt19690.kt")
+            public void testKt19690() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/delegatedProperty/local/kt19690.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("localVal.kt")
             public void testLocalVal() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/delegatedProperty/local/localVal.kt");

compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -7012,6 +7012,12 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                 doTest(fileName);
             }
 
+            @TestMetadata("kt19690.kt")
+            public void testKt19690() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/delegatedProperty/local/kt19690.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("localVal.kt")
             public void testLocalVal() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/delegatedProperty/local/localVal.kt");

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java

@@ -7798,6 +7798,12 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("kt19690.kt")
+            public void testKt19690() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/delegatedProperty/local/kt19690.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("localVal.kt")
             public void testLocalVal() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/delegatedProperty/local/localVal.kt");