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.impl.NodeCodecContext.CodecContextFactory;
  53 import org.opendaylight.mdsal.binding.dom.codec.impl.loader.CodecClassLoader;
  54 import org.opendaylight.mdsal.binding.dom.codec.impl.loader.CodecClassLoader.ClassGenerator;
  55 import org.opendaylight.mdsal.binding.dom.codec.impl.loader.CodecClassLoader.GeneratorResult;
  56 import org.opendaylight.mdsal.binding.dom.codec.spi.BindingSchemaMapping;
  57 import org.opendaylight.mdsal.binding.model.api.GeneratedType;
  58 import org.opendaylight.mdsal.binding.model.api.MethodSignature;
  59 import org.opendaylight.mdsal.binding.model.api.ParameterizedType;
  60 import org.opendaylight.mdsal.binding.model.api.Type;
  61 import org.opendaylight.yangtools.yang.binding.Augmentable;
  62 import org.opendaylight.yangtools.yang.binding.DataContainer;
  63 import org.opendaylight.yangtools.yang.binding.DataObject;
  64 import org.opendaylight.yangtools.yang.binding.Identifiable;
  65 import org.opendaylight.yangtools.yang.binding.Identifier;
  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 int PUB_FINAL = Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL | Opcodes.ACC_SYNTHETIC;
  93     private static final int PUB_CONST = Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC | Opcodes.ACC_FINAL
  94             | Opcodes.ACC_SYNTHETIC;
  95
  96     private static final Builder<?> TEMPLATE = new ByteBuddy().subclass(DataObjectStreamer.class)
  97             .modifiers(PUB_FINAL);
  98
  99     private static final StackManipulation REG = MethodVariableAccess.REFERENCE.loadFrom(1);
 100     private static final StackManipulation OBJ = MethodVariableAccess.REFERENCE.loadFrom(2);
 101     private static final StackManipulation STREAM = MethodVariableAccess.REFERENCE.loadFrom(3);
 102     private static final StackManipulation UNKNOWN_SIZE = IntegerConstant.forValue(
 103         BindingStreamEventWriter.UNKNOWN_SIZE);
 104
 105     private static final StackManipulation START_AUGMENTATION_NODE = invokeMethod(BindingStreamEventWriter.class,
 106         "startAugmentationNode", Class.class);
 107     private static final StackManipulation START_CASE = invokeMethod(BindingStreamEventWriter.class,
 108         "startCase", Class.class, int.class);
 109     private static final StackManipulation START_CONTAINER_NODE = invokeMethod(BindingStreamEventWriter.class,
 110         "startContainerNode", Class.class, int.class);
 111     private static final StackManipulation END_NODE = invokeMethod(BindingStreamEventWriter.class,
 112         "endNode");
 113
 114     // startMapEntryNode(obj.key(), UNKNOWN_SIZE)
 115     private static final StackManipulation START_MAP_ENTRY_NODE = new StackManipulation.Compound(
 116         OBJ,
 117         invokeMethod(Identifiable.class, "key"),
 118         UNKNOWN_SIZE,
 119         invokeMethod(BindingStreamEventWriter.class, "startMapEntryNode", Identifier.class, int.class));
 120
 121     // startUnkeyedListItem(UNKNOWN_SIZE)
 122     private static final StackManipulation START_UNKEYED_LIST_ITEM = new StackManipulation.Compound(
 123         UNKNOWN_SIZE,
 124         invokeMethod(BindingStreamEventWriter.class, "startUnkeyedListItem", int.class));
 125
 126     private static final StackManipulation STREAM_ANYDATA = invokeMethod(DataObjectStreamer.class,
 127         "streamAnydata", BindingStreamEventWriter.class, String.class, Object.class);
 128     private static final StackManipulation STREAM_ANYXML = invokeMethod(DataObjectStreamer.class,
 129         "streamAnyxml", BindingStreamEventWriter.class, String.class, Object.class);
 130     private static final StackManipulation STREAM_CHOICE = invokeMethod(DataObjectStreamer.class,
 131         "streamChoice", Class.class, DataObjectSerializerRegistry.class, BindingStreamEventWriter.class,
 132         DataContainer.class);
 133     private static final StackManipulation STREAM_CONTAINER = invokeMethod(DataObjectStreamer.class,
 134         "streamContainer", DataObjectStreamer.class, DataObjectSerializerRegistry.class, BindingStreamEventWriter.class,
 135         DataObject.class);
 136     private static final StackManipulation STREAM_LEAF = invokeMethod(DataObjectStreamer.class,
 137         "streamLeaf", BindingStreamEventWriter.class, String.class, Object.class);
 138     private static final StackManipulation STREAM_LEAF_LIST = invokeMethod(DataObjectStreamer.class,
 139         "streamLeafList",
 140         BindingStreamEventWriter.class, String.class, Set.class);
 141     private static final StackManipulation STREAM_ORDERED_LEAF_LIST = invokeMethod(DataObjectStreamer.class,
 142         "streamOrderedLeafList", BindingStreamEventWriter.class, String.class, List.class);
 143     private static final StackManipulation STREAM_LIST = invokeMethod(DataObjectStreamer.class,
 144         "streamList", Class.class, DataObjectStreamer.class, DataObjectSerializerRegistry.class,
 145         BindingStreamEventWriter.class, List.class);
 146     private static final StackManipulation STREAM_MAP = invokeMethod(DataObjectStreamer.class,
 147         "streamMap", Class.class, DataObjectStreamer.class, DataObjectSerializerRegistry.class,
 148         BindingStreamEventWriter.class, Map.class);
 149     private static final StackManipulation STREAM_ORDERED_MAP = invokeMethod(DataObjectStreamer.class,
 150         "streamOrderedMap", Class.class, DataObjectStreamer.class, DataObjectSerializerRegistry.class,
 151         BindingStreamEventWriter.class, List.class);
 152
 153     // streamAugmentations(reg, stream, obj)
 154     private static final StackManipulation STREAM_AUGMENTATIONS = new StackManipulation.Compound(
 155         REG,
 156         STREAM,
 157         OBJ,
 158         invokeMethod(DataObjectStreamer.class, "streamAugmentations", DataObjectSerializerRegistry.class,
 159             BindingStreamEventWriter.class, Augmentable.class));
 160
 161     private final CodecContextFactory registry;
 162     private final StackManipulation startEvent;
 163     private final DataNodeContainer schema;
 164     private final Class<?> type;
 165     private final GeneratedType genType;
 166
 167     private DataObjectStreamerGenerator(final CodecContextFactory registry, final GeneratedType genType,
 168             final DataNodeContainer schema, final Class<?> type, final StackManipulation startEvent) {
 169         this.registry = requireNonNull(registry);
 170         this.genType = requireNonNull(genType);
 171         this.schema = requireNonNull(schema);
 172         this.type = requireNonNull(type);
 173         this.startEvent = requireNonNull(startEvent);
 174     }
 175
 176     static Class<? extends DataObjectStreamer<?>> generateStreamer(final CodecClassLoader loader,
 177             final CodecContextFactory registry, final Class<?> type) {
 178
 179         final var typeAndSchema = registry.getRuntimeContext().getTypeWithSchema(type);
 180         final var schema = typeAndSchema.statement();
 181
 182         final StackManipulation startEvent;
 183         if (schema instanceof ContainerLike || schema instanceof NotificationDefinition) {
 184             startEvent = classUnknownSizeMethod(START_CONTAINER_NODE, type);
 185         } else if (schema instanceof ListSchemaNode) {
 186             startEvent = ((ListSchemaNode) schema).getKeyDefinition().isEmpty() ? START_UNKEYED_LIST_ITEM
 187                     : START_MAP_ENTRY_NODE;
 188         } else if (schema instanceof AugmentationSchemaNode) {
 189             // startAugmentationNode(Foo.class)
 190             startEvent = new StackManipulation.Compound(
 191                 ClassConstant.of(Sort.describe(type).asErasure()),
 192                 START_AUGMENTATION_NODE);
 193         } else if (schema instanceof CaseSchemaNode) {
 194             startEvent = classUnknownSizeMethod(START_CASE, type);
 195         } else {
 196             throw new UnsupportedOperationException("Schema type " + schema.getClass() + " is not supported");
 197         }
 198
 199         return loader.generateClass(type, "streamer",
 200             // FIXME: cast to GeneratedType: we really should adjust getTypeWithSchema()
 201             new DataObjectStreamerGenerator<>(registry, (GeneratedType) typeAndSchema.javaType(),
 202                 (DataNodeContainer) schema, type, startEvent));
 203     }
 204
 205     @Override
 206     public GeneratorResult<T> generateClass(final CodecClassLoader loader, final String fqcn,
 207             final Class<?> bindingInterface) {
 208         LOG.trace("Definining streamer {}", fqcn);
 209
 210         @SuppressWarnings("unchecked")
 211         Builder<T> builder = (Builder<T>) TEMPLATE.name(fqcn);
 212
 213         final ImmutableMap<String, Type> props = collectAllProperties(genType);
 214         final List<ChildStream> children = new ArrayList<>(props.size());
 215         for (final DataSchemaNode schemaChild : schema.getChildNodes()) {
 216             if (!schemaChild.isAugmenting()) {
 217                 final String getterName = BindingSchemaMapping.getGetterMethodName(schemaChild);
 218                 final Method getter;
 219                 try {
 220                     getter = type.getMethod(getterName);
 221                 } catch (NoSuchMethodException e) {
 222                     throw new IllegalStateException("Failed to find getter " + getterName, e);
 223                 }
 224
 225                 final ChildStream child = createStream(loader, props, schemaChild, getter);
 226                 if (child != null) {
 227                     children.add(child);
 228                 }
 229             }
 230         }
 231
 232         final ImmutableList.Builder<Class<?>> depBuilder = ImmutableList.builder();
 233         for (ChildStream child : children) {
 234             final Class<?> dependency = child.getDependency();
 235             if (dependency != null) {
 236                 depBuilder.add(dependency);
 237             }
 238         }
 239
 240         final GeneratorResult<T> result = GeneratorResult.of(builder
 241             .defineMethod("serialize", BB_VOID, PUB_FINAL)
 242                 .withParameters(BB_DOSR, BB_DATAOBJECT, BB_BESV)
 243                 .throwing(BB_IOX)
 244             .intercept(new SerializeImplementation(bindingInterface, startEvent, children)).make(), depBuilder.build());
 245
 246         LOG.trace("Definition of {} done", fqcn);
 247         return result;
 248     }
 249
 250     private ChildStream createStream(final CodecClassLoader loader, final ImmutableMap<String, Type> props,
 251             final DataSchemaNode childSchema, final Method getter) {
 252         if (childSchema instanceof LeafSchemaNode) {
 253             return qnameChildStream(STREAM_LEAF, getter, childSchema);
 254         }
 255         if (childSchema instanceof ContainerSchemaNode) {
 256             return containerChildStream(getter);
 257         }
 258         if (childSchema instanceof ListSchemaNode) {
 259             final String getterName = getter.getName();
 260             final Type childType = props.get(getterName);
 261             verify(childType instanceof ParameterizedType, "Unexpected type %s for %s", childType, getterName);
 262             final Type[] params = ((ParameterizedType) childType).getActualTypeArguments();
 263             final ListSchemaNode listSchema = (ListSchemaNode) childSchema;
 264             final Class<?> valueClass;
 265             if (!listSchema.isUserOrdered() && !listSchema.getKeyDefinition().isEmpty()) {
 266                 loadTypeClass(loader, params[0]);
 267                 valueClass = loadTypeClass(loader, params[1]);
 268             } else {
 269                 valueClass = loadTypeClass(loader, params[0]);
 270             }
 271
 272             return listChildStream(getter, valueClass.asSubclass(DataObject.class), listSchema);
 273         }
 274         if (childSchema instanceof ChoiceSchemaNode) {
 275             return choiceChildStream(getter);
 276         }
 277         if (childSchema instanceof AnydataSchemaNode) {
 278             return qnameChildStream(STREAM_ANYDATA, getter, childSchema);
 279         }
 280         if (childSchema instanceof AnyxmlSchemaNode) {
 281             return qnameChildStream(STREAM_ANYXML, getter, childSchema);
 282         }
 283         if (childSchema instanceof LeafListSchemaNode) {
 284             return qnameChildStream(((LeafListSchemaNode) childSchema).isUserOrdered() ? STREAM_ORDERED_LEAF_LIST
 285                     : STREAM_LEAF_LIST, getter, childSchema);
 286         }
 287
 288         LOG.debug("Ignoring {} due to unhandled schema {}", getter, childSchema);
 289         return null;
 290     }
 291
 292     private static ChildStream choiceChildStream(final Method getter) {
 293         // streamChoice(Foo.class, reg, stream, obj.getFoo())
 294         return new ChildStream(
 295             ClassConstant.of(Sort.describe(getter.getReturnType()).asErasure()),
 296             REG,
 297             STREAM,
 298             OBJ,
 299             invokeMethod(getter),
 300             STREAM_CHOICE);
 301     }
 302
 303     private ChildStream containerChildStream(final Method getter) {
 304         final Class<? extends DataObject> itemClass = getter.getReturnType().asSubclass(DataObject.class);
 305         final DataObjectStreamer<?> streamer = registry.getDataObjectSerializer(itemClass);
 306
 307         // streamContainer(FooStreamer.INSTANCE, reg, stream, obj.getFoo())
 308         return new ChildStream(streamer,
 309             streamerInstance(streamer),
 310             REG,
 311             STREAM,
 312             OBJ,
 313             invokeMethod(getter),
 314             STREAM_CONTAINER);
 315     }
 316
 317     private ChildStream listChildStream(final Method getter, final Class<? extends DataObject> itemClass,
 318             final ListSchemaNode childSchema) {
 319         final DataObjectStreamer<?> streamer = registry.getDataObjectSerializer(itemClass);
 320         final StackManipulation method;
 321         if (childSchema.getKeyDefinition().isEmpty()) {
 322             method = STREAM_LIST;
 323         } else {
 324             method = childSchema.isUserOrdered() ? STREAM_ORDERED_MAP : STREAM_MAP;
 325         }
 326
 327         // <METHOD>(Foo.class, FooStreamer.INSTACE, reg, stream, obj.getFoo())
 328         return new ChildStream(streamer,
 329             ClassConstant.of(Sort.describe(itemClass).asErasure()),
 330             streamerInstance(streamer),
 331             REG,
 332             STREAM,
 333             OBJ,
 334             invokeMethod(getter),
 335             method);
 336     }
 337
 338     private static ChildStream qnameChildStream(final StackManipulation method, final Method getter,
 339             final DataSchemaNode schema) {
 340         // <METHOD>(stream, "foo", obj.getFoo())
 341         return new ChildStream(
 342             STREAM,
 343             new TextConstant(schema.getQName().getLocalName()),
 344             OBJ,
 345             invokeMethod(getter),
 346             method);
 347     }
 348
 349     private static StackManipulation streamerInstance(final DataObjectStreamer<?> streamer) {
 350         try {
 351             return getField(streamer.getClass().getDeclaredField(INSTANCE_FIELD));
 352         } catch (NoSuchFieldException e) {
 353             throw new IllegalStateException(e);
 354         }
 355     }
 356
 357     private static StackManipulation classUnknownSizeMethod(final StackManipulation method, final Class<?> type) {
 358         // <METHOD>(Foo.class, UNKNOWN_SIZE)
 359         return new StackManipulation.Compound(
 360                 ClassConstant.of(Sort.describe(type).asErasure()),
 361                 UNKNOWN_SIZE,
 362                 method);
 363     }
 364
 365     private static ImmutableMap<String, Type> collectAllProperties(final GeneratedType type) {
 366         final Map<String, Type> props = new HashMap<>();
 367         collectAllProperties(type, props);
 368         return ImmutableMap.copyOf(props);
 369     }
 370
 371     private static void collectAllProperties(final GeneratedType type, final Map<String, Type> hashMap) {
 372         for (final MethodSignature definition : type.getMethodDefinitions()) {
 373             hashMap.put(definition.getName(), definition.getReturnType());
 374         }
 375         for (final Type parent : type.getImplements()) {
 376             if (parent instanceof GeneratedType) {
 377                 collectAllProperties((GeneratedType) parent, hashMap);
 378             }
 379         }
 380     }
 381
 382     private static Class<?> loadTypeClass(final CodecClassLoader loader, final Type type) {
 383         try {
 384             return loader.loadClass(type.getFullyQualifiedName());
 385         } catch (ClassNotFoundException e) {
 386             throw new LinkageError("Failed to load " + type, e);
 387         }
 388     }
 389
 390     private static final class SerializeImplementation implements Implementation {
 391         private final List<ChildStream> children;
 392         private final StackManipulation startEvent;
 393         private final Class<?> bindingInterface;
 394
 395         SerializeImplementation(final Class<?> bindingInterface, final StackManipulation startEvent,
 396                 final List<ChildStream> children) {
 397             this.bindingInterface = requireNonNull(bindingInterface);
 398             this.startEvent = requireNonNull(startEvent);
 399             this.children = requireNonNull(children);
 400         }
 401
 402         @Override
 403         public InstrumentedType prepare(final InstrumentedType instrumentedType) {
 404             return instrumentedType
 405                     // private static final This INSTANCE = new This()
 406                     .withField(new FieldDescription.Token(INSTANCE_FIELD, PUB_CONST, instrumentedType.asGenericType()))
 407                     .withInitializer(InitializeInstanceField.INSTANCE);
 408         }
 409
 410         @Override
 411         public ByteCodeAppender appender(final Target implementationTarget) {
 412             final List<StackManipulation> manipulations = new ArrayList<>(children.size() + 6);
 413
 414             // stream.<START_EVENT>(...)
 415             manipulations.add(STREAM);
 416             manipulations.add(startEvent);
 417
 418             // ... emit children ...
 419             manipulations.addAll(children);
 420
 421             if (Augmentable.class.isAssignableFrom(bindingInterface)) {
 422                 // streamAugmentations(reg, stream, obj)
 423                 manipulations.add(STREAM_AUGMENTATIONS);
 424             }
 425
 426             // stream.endNode()
 427             manipulations.add(STREAM);
 428             manipulations.add(END_NODE);
 429             // return
 430             manipulations.add(MethodReturn.VOID);
 431
 432             return new ByteCodeAppender.Simple(manipulations);
 433         }
 434     }
 435
 436     private static final class ChildStream extends StackManipulation.Compound {
 437         private final @Nullable Class<?> dependency;
 438
 439         ChildStream(final StackManipulation... stackManipulation) {
 440             super(stackManipulation);
 441             dependency = null;
 442         }
 443
 444         ChildStream(final DataObjectStreamer<?> streamer, final StackManipulation... stackManipulation) {
 445             super(stackManipulation);
 446             dependency = streamer.getClass();
 447         }
 448
 449         @Nullable Class<?> getDependency() {
 450             return dependency;
 451         }
 452     }
 453
 454     private enum InitializeInstanceField implements ByteCodeAppender {
 455         INSTANCE;
 456
 457         // TODO: eliminate this constant when ElementMatchers.isDefaultConstructor() returns a singleton
 458         private static final ElementMatcher<MethodDescription> IS_DEFAULT_CONSTRUCTOR =
 459             ElementMatchers.isDefaultConstructor();
 460
 461         @Override
 462         public Size apply(final MethodVisitor methodVisitor, final Context implementationContext,
 463                 final MethodDescription instrumentedMethod) {
 464             final TypeDescription instrumentedType = implementationContext.getInstrumentedType();
 465             StackManipulation.Size operandStackSize = new StackManipulation.Compound(
 466                 TypeCreation.of(instrumentedType),
 467                 Duplication.SINGLE,
 468                 MethodInvocation.invoke(instrumentedType.getDeclaredMethods()
 469                     .filter(IS_DEFAULT_CONSTRUCTOR).getOnly().asDefined()),
 470                 putField(instrumentedType, INSTANCE_FIELD))
 471                     .apply(methodVisitor, implementationContext);
 472             return new Size(operandStackSize.getMaximalSize(), instrumentedMethod.getStackSize());
 473         }
 474     }
 475 }