binding/mdsal-binding-dom-codec/src/main/java/org/opendaylight/mdsal/binding/dom/codec/impl/DataObjectStreamerGenerator.java

   1 /*
   2  * Copyright (c) 2019 PANTHEON.tech, s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.mdsal.binding.dom.codec.impl;
   9
  10 import static com.google.common.base.Verify.verify;
  11 import static java.util.Objects.requireNonNull;
  12 import static org.opendaylight.mdsal.binding.dom.codec.impl.ByteBuddyUtils.getField;
  13 import static org.opendaylight.mdsal.binding.dom.codec.impl.ByteBuddyUtils.invokeMethod;
  14 import static org.opendaylight.mdsal.binding.dom.codec.impl.ByteBuddyUtils.putField;
  15
  16 import com.google.common.collect.ImmutableList;
  17 import com.google.common.collect.ImmutableMap;
  18 import java.io.IOException;
  19 import java.lang.reflect.Method;
  20 import java.util.ArrayList;
  21 import java.util.HashMap;
  22 import java.util.List;
  23 import java.util.Map;
  24 import java.util.Set;
  25 import net.bytebuddy.ByteBuddy;
  26 import net.bytebuddy.description.field.FieldDescription;
  27 import net.bytebuddy.description.method.MethodDescription;
  28 import net.bytebuddy.description.type.TypeDefinition;
  29 import net.bytebuddy.description.type.TypeDefinition.Sort;
  30 import net.bytebuddy.description.type.TypeDescription;
  31 import net.bytebuddy.description.type.TypeDescription.Generic;
  32 import net.bytebuddy.dynamic.DynamicType.Builder;
  33 import net.bytebuddy.dynamic.scaffold.InstrumentedType;
  34 import net.bytebuddy.implementation.Implementation;
  35 import net.bytebuddy.implementation.Implementation.Context;
  36 import net.bytebuddy.implementation.bytecode.ByteCodeAppender;
  37 import net.bytebuddy.implementation.bytecode.Duplication;
  38 import net.bytebuddy.implementation.bytecode.StackManipulation;
  39 import net.bytebuddy.implementation.bytecode.TypeCreation;
  40 import net.bytebuddy.implementation.bytecode.constant.ClassConstant;
  41 import net.bytebuddy.implementation.bytecode.constant.IntegerConstant;
  42 import net.bytebuddy.implementation.bytecode.constant.TextConstant;
  43 import net.bytebuddy.implementation.bytecode.member.MethodInvocation;
  44 import net.bytebuddy.implementation.bytecode.member.MethodReturn;
  45 import net.bytebuddy.implementation.bytecode.member.MethodVariableAccess;
  46 import net.bytebuddy.jar.asm.MethodVisitor;
  47 import net.bytebuddy.jar.asm.Opcodes;
  48 import net.bytebuddy.matcher.ElementMatcher;
  49 import net.bytebuddy.matcher.ElementMatchers;
  50 import org.eclipse.jdt.annotation.Nullable;
  51 import org.opendaylight.mdsal.binding.dom.codec.api.BindingStreamEventWriter;
  52 import org.opendaylight.mdsal.binding.dom.codec.spi.BindingSchemaMapping;
  53 import org.opendaylight.mdsal.binding.loader.BindingClassLoader;
  54 import org.opendaylight.mdsal.binding.loader.BindingClassLoader.ClassGenerator;
  55 import org.opendaylight.mdsal.binding.loader.BindingClassLoader.GeneratorResult;
  56 import org.opendaylight.mdsal.binding.model.api.GeneratedType;
  57 import org.opendaylight.mdsal.binding.model.api.MethodSignature;
  58 import org.opendaylight.mdsal.binding.model.api.ParameterizedType;
  59 import org.opendaylight.mdsal.binding.model.api.Type;
  60 import org.opendaylight.yangtools.yang.binding.Augmentable;
  61 import org.opendaylight.yangtools.yang.binding.DataContainer;
  62 import org.opendaylight.yangtools.yang.binding.DataObject;
  63 import org.opendaylight.yangtools.yang.binding.Key;
  64 import org.opendaylight.yangtools.yang.binding.KeyAware;
  65 import org.opendaylight.yangtools.yang.binding.contract.Naming;
  66 import org.opendaylight.yangtools.yang.model.api.AnydataSchemaNode;
  67 import org.opendaylight.yangtools.yang.model.api.AnyxmlSchemaNode;
  68 import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
  69 import org.opendaylight.yangtools.yang.model.api.CaseSchemaNode;
  70 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
  71 import org.opendaylight.yangtools.yang.model.api.ContainerLike;
  72 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  73 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
  74 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
  75 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
  76 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
  77 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
  78 import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
  79 import org.slf4j.Logger;
  80 import org.slf4j.LoggerFactory;
  81
  82 final class DataObjectStreamerGenerator<T extends DataObjectStreamer<?>> implements ClassGenerator<T> {
  83     static final String INSTANCE_FIELD = "INSTANCE";
  84
  85     private static final Logger LOG = LoggerFactory.getLogger(DataObjectStreamerGenerator.class);
  86     private static final Generic BB_VOID = TypeDefinition.Sort.describe(void.class);
  87     private static final Generic BB_DATAOBJECT = TypeDefinition.Sort.describe(DataObject.class);
  88     private static final Generic BB_DOSR = TypeDefinition.Sort.describe(DataObjectSerializerRegistry.class);
  89     private static final Generic BB_BESV = TypeDefinition.Sort.describe(BindingStreamEventWriter.class);
  90     private static final Generic BB_IOX = TypeDefinition.Sort.describe(IOException.class);
  91
  92     private static final Builder<?> TEMPLATE = new ByteBuddy().subclass(DataObjectStreamer.class)
  93             .modifiers(Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL | Opcodes.ACC_SYNTHETIC);
  94
  95     private static final StackManipulation REG = MethodVariableAccess.REFERENCE.loadFrom(1);
  96     private static final StackManipulation OBJ = MethodVariableAccess.REFERENCE.loadFrom(2);
  97     private static final StackManipulation STREAM = MethodVariableAccess.REFERENCE.loadFrom(3);
  98     private static final StackManipulation UNKNOWN_SIZE = IntegerConstant.forValue(
  99         BindingStreamEventWriter.UNKNOWN_SIZE);
 100
 101     private static final StackManipulation START_AUGMENTATION_NODE = invokeMethod(BindingStreamEventWriter.class,
 102         "startAugmentationNode", Class.class);
 103     private static final StackManipulation START_CASE = invokeMethod(BindingStreamEventWriter.class,
 104         "startCase", Class.class, int.class);
 105     private static final StackManipulation START_CONTAINER_NODE = invokeMethod(BindingStreamEventWriter.class,
 106         "startContainerNode", Class.class, int.class);
 107     private static final StackManipulation END_NODE = invokeMethod(BindingStreamEventWriter.class,
 108         "endNode");
 109
 110     // startMapEntryNode(obj.key(), UNKNOWN_SIZE)
 111     private static final StackManipulation START_MAP_ENTRY_NODE = new StackManipulation.Compound(
 112         OBJ,
 113         invokeMethod(KeyAware.class, Naming.KEY_AWARE_KEY_NAME),
 114         UNKNOWN_SIZE,
 115         invokeMethod(BindingStreamEventWriter.class, "startMapEntryNode", Key.class, int.class));
 116
 117     // startUnkeyedListItem(UNKNOWN_SIZE)
 118     private static final StackManipulation START_UNKEYED_LIST_ITEM = new StackManipulation.Compound(
 119         UNKNOWN_SIZE,
 120         invokeMethod(BindingStreamEventWriter.class, "startUnkeyedListItem", int.class));
 121
 122     private static final StackManipulation STREAM_ANYDATA = invokeMethod(DataObjectStreamer.class,
 123         "streamAnydata", BindingStreamEventWriter.class, String.class, Object.class);
 124     private static final StackManipulation STREAM_ANYXML = invokeMethod(DataObjectStreamer.class,
 125         "streamAnyxml", BindingStreamEventWriter.class, String.class, Object.class);
 126     private static final StackManipulation STREAM_CHOICE = invokeMethod(DataObjectStreamer.class,
 127         "streamChoice", Class.class, DataObjectSerializerRegistry.class, BindingStreamEventWriter.class,
 128         DataContainer.class);
 129     private static final StackManipulation STREAM_CONTAINER = invokeMethod(DataObjectStreamer.class,
 130         "streamContainer", DataObjectStreamer.class, DataObjectSerializerRegistry.class, BindingStreamEventWriter.class,
 131         DataObject.class);
 132     private static final StackManipulation STREAM_LEAF = invokeMethod(DataObjectStreamer.class,
 133         "streamLeaf", BindingStreamEventWriter.class, String.class, Object.class);
 134     private static final StackManipulation STREAM_LEAF_LIST = invokeMethod(DataObjectStreamer.class,
 135         "streamLeafList",
 136         BindingStreamEventWriter.class, String.class, Set.class);
 137     private static final StackManipulation STREAM_ORDERED_LEAF_LIST = invokeMethod(DataObjectStreamer.class,
 138         "streamOrderedLeafList", BindingStreamEventWriter.class, String.class, List.class);
 139     private static final StackManipulation STREAM_LIST = invokeMethod(DataObjectStreamer.class,
 140         "streamList", Class.class, DataObjectStreamer.class, DataObjectSerializerRegistry.class,
 141         BindingStreamEventWriter.class, List.class);
 142     private static final StackManipulation STREAM_MAP = invokeMethod(DataObjectStreamer.class,
 143         "streamMap", Class.class, DataObjectStreamer.class, DataObjectSerializerRegistry.class,
 144         BindingStreamEventWriter.class, Map.class);
 145     private static final StackManipulation STREAM_ORDERED_MAP = invokeMethod(DataObjectStreamer.class,
 146         "streamOrderedMap", Class.class, DataObjectStreamer.class, DataObjectSerializerRegistry.class,
 147         BindingStreamEventWriter.class, List.class);
 148
 149     // streamAugmentations(reg, stream, obj)
 150     private static final StackManipulation STREAM_AUGMENTATIONS = new StackManipulation.Compound(
 151         REG,
 152         STREAM,
 153         OBJ,
 154         invokeMethod(DataObjectStreamer.class, "streamAugmentations", DataObjectSerializerRegistry.class,
 155             BindingStreamEventWriter.class, Augmentable.class));
 156
 157     private final CodecContextFactory registry;
 158     private final StackManipulation startEvent;
 159     private final DataNodeContainer schema;
 160     private final Class<?> type;
 161     private final GeneratedType genType;
 162
 163     private DataObjectStreamerGenerator(final CodecContextFactory registry, final GeneratedType genType,
 164             final DataNodeContainer schema, final Class<?> type, final StackManipulation startEvent) {
 165         this.registry = requireNonNull(registry);
 166         this.genType = requireNonNull(genType);
 167         this.schema = requireNonNull(schema);
 168         this.type = requireNonNull(type);
 169         this.startEvent = requireNonNull(startEvent);
 170     }
 171
 172     static Class<? extends DataObjectStreamer<?>> generateStreamer(final BindingClassLoader loader,
 173             final CodecContextFactory registry, final Class<?> type) {
 174
 175         final var typeAndSchema = registry.getRuntimeContext().getTypeWithSchema(type);
 176         final var schema = typeAndSchema.statement();
 177
 178         final StackManipulation startEvent;
 179         if (schema instanceof ContainerLike || schema instanceof NotificationDefinition) {
 180             startEvent = classUnknownSizeMethod(START_CONTAINER_NODE, type);
 181         } else if (schema instanceof ListSchemaNode) {
 182             startEvent = ((ListSchemaNode) schema).getKeyDefinition().isEmpty() ? START_UNKEYED_LIST_ITEM
 183                     : START_MAP_ENTRY_NODE;
 184         } else if (schema instanceof AugmentationSchemaNode) {
 185             // startAugmentationNode(Foo.class)
 186             startEvent = new StackManipulation.Compound(
 187                 ClassConstant.of(Sort.describe(type).asErasure()),
 188                 START_AUGMENTATION_NODE);
 189         } else if (schema instanceof CaseSchemaNode) {
 190             startEvent = classUnknownSizeMethod(START_CASE, type);
 191         } else {
 192             throw new UnsupportedOperationException("Schema type " + schema.getClass() + " is not supported");
 193         }
 194
 195         return CodecPackage.STREAMER.generateClass(loader, type,
 196             // FIXME: cast to GeneratedType: we really should adjust getTypeWithSchema()
 197             new DataObjectStreamerGenerator<>(registry, (GeneratedType) typeAndSchema.javaType(),
 198                 (DataNodeContainer) schema, type, startEvent));
 199     }
 200
 201     @Override
 202     public GeneratorResult<T> generateClass(final BindingClassLoader loader, final String fqcn,
 203             final Class<?> bindingInterface) {
 204         LOG.trace("Definining streamer {}", fqcn);
 205
 206         @SuppressWarnings("unchecked")
 207         Builder<T> builder = (Builder<T>) TEMPLATE.name(fqcn);
 208
 209         final ImmutableMap<String, Type> props = collectAllProperties(genType);
 210         final List<ChildStream> children = new ArrayList<>(props.size());
 211         for (final DataSchemaNode schemaChild : schema.getChildNodes()) {
 212             if (!schemaChild.isAugmenting()) {
 213                 final String getterName = BindingSchemaMapping.getGetterMethodName(schemaChild);
 214                 final Method getter;
 215                 try {
 216                     getter = type.getMethod(getterName);
 217                 } catch (NoSuchMethodException e) {
 218                     throw new IllegalStateException("Failed to find getter " + getterName, e);
 219                 }
 220
 221                 final ChildStream child = createStream(loader, props, schemaChild, getter);
 222                 if (child != null) {
 223                     children.add(child);
 224                 }
 225             }
 226         }
 227
 228         final ImmutableList.Builder<Class<?>> depBuilder = ImmutableList.builder();
 229         for (ChildStream child : children) {
 230             final Class<?> dependency = child.getDependency();
 231             if (dependency != null) {
 232                 depBuilder.add(dependency);
 233             }
 234         }
 235
 236         final GeneratorResult<T> result = GeneratorResult.of(builder
 237             .defineMethod("serialize", BB_VOID, Opcodes.ACC_PROTECTED | Opcodes.ACC_FINAL | Opcodes.ACC_SYNTHETIC)
 238                 .withParameters(BB_DOSR, BB_DATAOBJECT, BB_BESV)
 239                 .throwing(BB_IOX)
 240             .intercept(new SerializeImplementation(bindingInterface, startEvent, children)).make(), depBuilder.build());
 241
 242         LOG.trace("Definition of {} done", fqcn);
 243         return result;
 244     }
 245
 246     private ChildStream createStream(final BindingClassLoader loader, final ImmutableMap<String, Type> props,
 247             final DataSchemaNode childSchema, final Method getter) {
 248         if (childSchema instanceof LeafSchemaNode) {
 249             return qnameChildStream(STREAM_LEAF, getter, childSchema);
 250         }
 251         if (childSchema instanceof ContainerSchemaNode) {
 252             return containerChildStream(getter);
 253         }
 254         if (childSchema instanceof ListSchemaNode) {
 255             final String getterName = getter.getName();
 256             final Type childType = props.get(getterName);
 257             verify(childType instanceof ParameterizedType, "Unexpected type %s for %s", childType, getterName);
 258             final Type[] params = ((ParameterizedType) childType).getActualTypeArguments();
 259             final ListSchemaNode listSchema = (ListSchemaNode) childSchema;
 260             final Class<?> valueClass;
 261             if (!listSchema.isUserOrdered() && !listSchema.getKeyDefinition().isEmpty()) {
 262                 loadTypeClass(loader, params[0]);
 263                 valueClass = loadTypeClass(loader, params[1]);
 264             } else {
 265                 valueClass = loadTypeClass(loader, params[0]);
 266             }
 267
 268             return listChildStream(getter, valueClass.asSubclass(DataObject.class), listSchema);
 269         }
 270         if (childSchema instanceof ChoiceSchemaNode) {
 271             return choiceChildStream(getter);
 272         }
 273         if (childSchema instanceof AnydataSchemaNode) {
 274             return qnameChildStream(STREAM_ANYDATA, getter, childSchema);
 275         }
 276         if (childSchema instanceof AnyxmlSchemaNode) {
 277             return qnameChildStream(STREAM_ANYXML, getter, childSchema);
 278         }
 279         if (childSchema instanceof LeafListSchemaNode) {
 280             return qnameChildStream(((LeafListSchemaNode) childSchema).isUserOrdered() ? STREAM_ORDERED_LEAF_LIST
 281                     : STREAM_LEAF_LIST, getter, childSchema);
 282         }
 283
 284         LOG.debug("Ignoring {} due to unhandled schema {}", getter, childSchema);
 285         return null;
 286     }
 287
 288     private static ChildStream choiceChildStream(final Method getter) {
 289         // streamChoice(Foo.class, reg, stream, obj.getFoo())
 290         return new ChildStream(
 291             ClassConstant.of(Sort.describe(getter.getReturnType()).asErasure()),
 292             REG,
 293             STREAM,
 294             OBJ,
 295             invokeMethod(getter),
 296             STREAM_CHOICE);
 297     }
 298
 299     private ChildStream containerChildStream(final Method getter) {
 300         final Class<? extends DataObject> itemClass = getter.getReturnType().asSubclass(DataObject.class);
 301         final DataObjectStreamer<?> streamer = registry.getDataObjectSerializer(itemClass);
 302
 303         // streamContainer(FooStreamer.INSTANCE, reg, stream, obj.getFoo())
 304         return new ChildStream(streamer,
 305             streamerInstance(streamer),
 306             REG,
 307             STREAM,
 308             OBJ,
 309             invokeMethod(getter),
 310             STREAM_CONTAINER);
 311     }
 312
 313     private ChildStream listChildStream(final Method getter, final Class<? extends DataObject> itemClass,
 314             final ListSchemaNode childSchema) {
 315         final DataObjectStreamer<?> streamer = registry.getDataObjectSerializer(itemClass);
 316         final StackManipulation method;
 317         if (childSchema.getKeyDefinition().isEmpty()) {
 318             method = STREAM_LIST;
 319         } else {
 320             method = childSchema.isUserOrdered() ? STREAM_ORDERED_MAP : STREAM_MAP;
 321         }
 322
 323         // <METHOD>(Foo.class, FooStreamer.INSTACE, reg, stream, obj.getFoo())
 324         return new ChildStream(streamer,
 325             ClassConstant.of(Sort.describe(itemClass).asErasure()),
 326             streamerInstance(streamer),
 327             REG,
 328             STREAM,
 329             OBJ,
 330             invokeMethod(getter),
 331             method);
 332     }
 333
 334     private static ChildStream qnameChildStream(final StackManipulation method, final Method getter,
 335             final DataSchemaNode schema) {
 336         // <METHOD>(stream, "foo", obj.getFoo())
 337         return new ChildStream(
 338             STREAM,
 339             new TextConstant(schema.getQName().getLocalName()),
 340             OBJ,
 341             invokeMethod(getter),
 342             method);
 343     }
 344
 345     private static StackManipulation streamerInstance(final DataObjectStreamer<?> streamer) {
 346         try {
 347             return getField(streamer.getClass().getDeclaredField(INSTANCE_FIELD));
 348         } catch (NoSuchFieldException e) {
 349             throw new IllegalStateException(e);
 350         }
 351     }
 352
 353     private static StackManipulation classUnknownSizeMethod(final StackManipulation method, final Class<?> type) {
 354         // <METHOD>(Foo.class, UNKNOWN_SIZE)
 355         return new StackManipulation.Compound(
 356                 ClassConstant.of(Sort.describe(type).asErasure()),
 357                 UNKNOWN_SIZE,
 358                 method);
 359     }
 360
 361     private static ImmutableMap<String, Type> collectAllProperties(final GeneratedType type) {
 362         final Map<String, Type> props = new HashMap<>();
 363         collectAllProperties(type, props);
 364         return ImmutableMap.copyOf(props);
 365     }
 366
 367     private static void collectAllProperties(final GeneratedType type, final Map<String, Type> hashMap) {
 368         for (final MethodSignature definition : type.getMethodDefinitions()) {
 369             hashMap.put(definition.getName(), definition.getReturnType());
 370         }
 371         for (final Type parent : type.getImplements()) {
 372             if (parent instanceof GeneratedType) {
 373                 collectAllProperties((GeneratedType) parent, hashMap);
 374             }
 375         }
 376     }
 377
 378     private static Class<?> loadTypeClass(final BindingClassLoader loader, final Type type) {
 379         try {
 380             return loader.loadClass(type.getFullyQualifiedName());
 381         } catch (ClassNotFoundException e) {
 382             throw new LinkageError("Failed to load " + type, e);
 383         }
 384     }
 385
 386     private static final class SerializeImplementation implements Implementation {
 387         private final List<ChildStream> children;
 388         private final StackManipulation startEvent;
 389         private final Class<?> bindingInterface;
 390
 391         SerializeImplementation(final Class<?> bindingInterface, final StackManipulation startEvent,
 392                 final List<ChildStream> children) {
 393             this.bindingInterface = requireNonNull(bindingInterface);
 394             this.startEvent = requireNonNull(startEvent);
 395             this.children = requireNonNull(children);
 396         }
 397
 398         @Override
 399         public InstrumentedType prepare(final InstrumentedType instrumentedType) {
 400             return instrumentedType
 401                     // private static final This INSTANCE = new This()
 402                     .withField(new FieldDescription.Token(INSTANCE_FIELD,
 403                         Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC | Opcodes.ACC_FINAL | Opcodes.ACC_SYNTHETIC,
 404                         instrumentedType.asGenericType()))
 405                     .withInitializer(InitializeInstanceField.INSTANCE);
 406         }
 407
 408         @Override
 409         public ByteCodeAppender appender(final Target implementationTarget) {
 410             final List<StackManipulation> manipulations = new ArrayList<>(children.size() + 6);
 411
 412             // stream.<START_EVENT>(...)
 413             manipulations.add(STREAM);
 414             manipulations.add(startEvent);
 415
 416             // ... emit children ...
 417             manipulations.addAll(children);
 418
 419             if (Augmentable.class.isAssignableFrom(bindingInterface)) {
 420                 // streamAugmentations(reg, stream, obj)
 421                 manipulations.add(STREAM_AUGMENTATIONS);
 422             }
 423
 424             // stream.endNode()
 425             manipulations.add(STREAM);
 426             manipulations.add(END_NODE);
 427             // return
 428             manipulations.add(MethodReturn.VOID);
 429
 430             return new ByteCodeAppender.Simple(manipulations);
 431         }
 432     }
 433
 434     private static final class ChildStream extends StackManipulation.Compound {
 435         private final @Nullable Class<?> dependency;
 436
 437         ChildStream(final StackManipulation... stackManipulation) {
 438             super(stackManipulation);
 439             dependency = null;
 440         }
 441
 442         ChildStream(final DataObjectStreamer<?> streamer, final StackManipulation... stackManipulation) {
 443             super(stackManipulation);
 444             dependency = streamer.getClass();
 445         }
 446
 447         @Nullable Class<?> getDependency() {
 448             return dependency;
 449         }
 450     }
 451
 452     private enum InitializeInstanceField implements ByteCodeAppender {
 453         INSTANCE;
 454
 455         // TODO: eliminate this constant when ElementMatchers.isDefaultConstructor() returns a singleton
 456         private static final ElementMatcher<MethodDescription> IS_DEFAULT_CONSTRUCTOR =
 457             ElementMatchers.isDefaultConstructor();
 458
 459         @Override
 460         public Size apply(final MethodVisitor methodVisitor, final Context implementationContext,
 461                 final MethodDescription instrumentedMethod) {
 462             final TypeDescription instrumentedType = implementationContext.getInstrumentedType();
 463             StackManipulation.Size operandStackSize = new StackManipulation.Compound(
 464                 TypeCreation.of(instrumentedType),
 465                 Duplication.SINGLE,
 466                 MethodInvocation.invoke(instrumentedType.getDeclaredMethods()
 467                     .filter(IS_DEFAULT_CONSTRUCTOR).getOnly().asDefined()),
 468                 putField(instrumentedType, INSTANCE_FIELD))
 469                     .apply(methodVisitor, implementationContext);
 470             return new Size(operandStackSize.getMaximalSize(), instrumentedMethod.getStackSize());
 471         }
 472     }
 473 }