@Override
public void visit(
final int version,
final int access,
final String name,
final String signature,
final String superName,
final String[] interfaces) {
Set<String> interfacesSet = new LinkedHashSet<String>();
if (interfaces != null) Collections.addAll(interfacesSet, interfaces);
for (Class extraInterface : classList) {
if (extraInterface.isInterface())
interfacesSet.add(BytecodeHelper.getClassInternalName(extraInterface));
}
final boolean addGroovyObjectSupport = !GroovyObject.class.isAssignableFrom(superClass);
if (addGroovyObjectSupport) interfacesSet.add("groovy/lang/GroovyObject");
super.visit(
V1_5,
ACC_PUBLIC,
proxyName,
signature,
BytecodeHelper.getClassInternalName(superClass),
interfacesSet.toArray(new String[interfacesSet.size()]));
addDelegateFields();
if (addGroovyObjectSupport) {
createGroovyObjectSupport();
}
for (Class clazz : classList) {
visitClass(clazz);
}
}
/**
* check whether a class should not be considered for transformation
*
* @param clazz the class to check
* @return true if clazz should not be considered for transformation otherwise false
*/
protected boolean isSkipClass(Class<?> clazz) {
if (!inst.isModifiableClass(clazz)) {
return true;
}
// we can safely skip array classes, interfaces and primitive classes
if (clazz.isArray()) {
return true;
}
if (clazz.isInterface()) {
return true;
}
if (clazz.isPrimitive()) {
return true;
}
String name = clazz.getName();
if (isBytemanClass(name) || !isTransformable(name)) {
return true;
}
return false;
}
private void writeSetter(ClassVisitor visitor, Type generatedType, ModelProperty<?> property) {
WeaklyTypeReferencingMethod<?, Void> weakSetter = property.getSetter();
// There is no setter for this property
if (weakSetter == null) {
return;
}
String propertyName = property.getName();
Class<?> propertyClass = property.getType().getConcreteClass();
Type propertyType = Type.getType(propertyClass);
Label calledOutsideOfConstructor = new Label();
Method setter = weakSetter.getMethod();
// the regular typed setter
String methodDescriptor = Type.getMethodDescriptor(Type.VOID_TYPE, propertyType);
MethodVisitor methodVisitor =
declareMethod(
visitor, setter.getName(), methodDescriptor, AsmClassGeneratorUtils.signature(setter));
putCanCallSettersFieldValueOnStack(methodVisitor, generatedType);
jumpToLabelIfStackEvaluatesToTrue(methodVisitor, calledOutsideOfConstructor);
throwExceptionBecauseCalledOnItself(methodVisitor);
methodVisitor.visitLabel(calledOutsideOfConstructor);
putStateFieldValueOnStack(methodVisitor, generatedType);
putConstantOnStack(methodVisitor, propertyName);
putFirstMethodArgumentOnStack(methodVisitor, propertyType);
if (propertyClass.isPrimitive()) {
boxType(methodVisitor, propertyClass);
}
invokeStateSetMethod(methodVisitor);
finishVisitingMethod(methodVisitor);
}
public void addGetter(MetaBeanProperty property) throws Exception {
MetaMethod getter = property.getGetter();
// GENERATE private boolean <prop>Set;
String flagName = String.format("%sSet", property.getName());
visitor.visitField(
Opcodes.ACC_PRIVATE, flagName, Type.BOOLEAN_TYPE.getDescriptor(), null, null);
addConventionGetter(getter.getName(), flagName, property);
String getterName = getter.getName();
Class<?> returnType = getter.getReturnType();
// If it's a boolean property, there can be get or is type variants.
// If this class has both, decorate both.
if (returnType.equals(Boolean.TYPE)) {
boolean getterIsIsMethod = getterName.startsWith("is");
String propertyNameComponent = getterName.substring(getterIsIsMethod ? 2 : 3);
String alternativeGetterName =
String.format("%s%s", getterIsIsMethod ? "get" : "is", propertyNameComponent);
try {
type.getMethod(alternativeGetterName);
addConventionGetter(alternativeGetterName, flagName, property);
} catch (NoSuchMethodException e) {
// ignore, no method to override
}
}
}
@Test
public void testEnclosingType() throws Exception {
for (Class<?> type : standardTypes) {
assertThat(
describe(type).getEnclosingType(),
type.getEnclosingClass() == null
? nullValue(TypeDescription.class)
: is((TypeDescription) new TypeDescription.ForLoadedType(type.getEnclosingClass())));
}
}
@Test
public void testSourceName() throws Exception {
for (Class<?> type : standardTypes) {
if (type.isArray()) {
assertThat(describe(type).getActualName(), is(type.getComponentType().getName() + "[]"));
} else {
assertThat(describe(type).getActualName(), is(type.getName()));
}
}
}
/**
* use the supplied bytes to define a class and try creating an instance via the empty
* constructor printing details of any errors which occur
*
* @param classname
* @param protectionDomain
* @param bytes
* @return the bytes if all goes well otherwise null
*/
public byte[] verify(String classname, ProtectionDomain protectionDomain, byte[] bytes) {
try {
Class clazz = super.defineClass(classname, bytes, 0, bytes.length, protectionDomain);
clazz.newInstance();
} catch (Throwable th) {
System.out.println("Transformer:verifyTransformedBytes " + th);
return null;
}
return bytes;
}
private void visitType(java.lang.reflect.Type type, StringBuilder builder) {
if (type instanceof Class) {
Class<?> cl = (Class<?>) type;
if (cl.isPrimitive()) {
builder.append(Type.getType(cl).getDescriptor());
} else {
if (cl.isArray()) {
builder.append(cl.getName().replace('.', '/'));
} else {
builder.append('L');
builder.append(cl.getName().replace('.', '/'));
builder.append(';');
}
}
} else if (type instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) type;
visitNested(parameterizedType.getRawType(), builder);
builder.append('<');
for (java.lang.reflect.Type param : parameterizedType.getActualTypeArguments()) {
visitType(param, builder);
}
builder.append(">;");
} else if (type instanceof WildcardType) {
WildcardType wildcardType = (WildcardType) type;
if (wildcardType.getUpperBounds().length == 1
&& wildcardType.getUpperBounds()[0].equals(Object.class)) {
if (wildcardType.getLowerBounds().length == 0) {
builder.append('*');
return;
}
} else {
for (java.lang.reflect.Type upperType : wildcardType.getUpperBounds()) {
builder.append('+');
visitType(upperType, builder);
}
}
for (java.lang.reflect.Type lowerType : wildcardType.getLowerBounds()) {
builder.append('-');
visitType(lowerType, builder);
}
} else if (type instanceof TypeVariable) {
TypeVariable<?> typeVar = (TypeVariable) type;
builder.append('T');
builder.append(typeVar.getName());
builder.append(';');
} else if (type instanceof GenericArrayType) {
GenericArrayType arrayType = (GenericArrayType) type;
builder.append('[');
visitType(arrayType.getGenericComponentType(), builder);
} else {
throw new IllegalArgumentException(
String.format("Cannot generate signature for %s.", type));
}
}
/**
* Visit every class/interface this proxy should implement, and generate the appropriate bytecode
* for delegation if available.
*
* @param clazz an class for which to generate bytecode
*/
private void visitClass(final Class clazz) {
Method[] methods = clazz.getDeclaredMethods();
for (Method method : methods) {
Class<?>[] exceptionTypes = method.getExceptionTypes();
String[] exceptions = new String[exceptionTypes.length];
for (int i = 0; i < exceptions.length; i++) {
exceptions[i] = BytecodeHelper.getClassInternalName(exceptionTypes[i]);
}
// for each method defined in the class, generate the appropriate delegation bytecode
visitMethod(
method.getModifiers(),
method.getName(),
BytecodeHelper.getMethodDescriptor(method.getReturnType(), method.getParameterTypes()),
null,
exceptions);
}
Constructor[] constructors = clazz.getDeclaredConstructors();
for (Constructor method : constructors) {
Class<?>[] exceptionTypes = method.getExceptionTypes();
String[] exceptions = new String[exceptionTypes.length];
for (int i = 0; i < exceptions.length; i++) {
exceptions[i] = BytecodeHelper.getClassInternalName(exceptionTypes[i]);
}
// for each method defined in the class, generate the appropriate delegation bytecode
visitMethod(
method.getModifiers(),
"<init>",
BytecodeHelper.getMethodDescriptor(Void.TYPE, method.getParameterTypes()),
null,
exceptions);
}
for (Class intf : clazz.getInterfaces()) {
visitClass(intf);
}
Class superclass = clazz.getSuperclass();
if (superclass != null) visitClass(superclass);
// Ultimately, methods can be available in the closure map which are not defined by the
// superclass
// nor the interfaces
for (Map.Entry<String, Boolean> entry : delegatedClosures.entrySet()) {
Boolean visited = entry.getValue();
if (!visited) {
String name = entry.getKey();
if (!"*".equals(name)) {
// generate a new method
visitMethod(ACC_PUBLIC, name, "([Ljava/lang/Object;)Ljava/lang/Object;", null, null);
}
}
}
}
public static Class<?> malform(Class<?> type) throws Exception {
ClassReader classReader = new ClassReader(type.getName());
ClassWriter classWriter = new ClassWriter(classReader, 0);
classReader.accept(new SignatureMalformer(classWriter), 0);
ClassLoader classLoader =
new ByteArrayClassLoader(
null,
Collections.singletonMap(type.getName(), classWriter.toByteArray()),
null,
ByteArrayClassLoader.PersistenceHandler.MANIFEST,
PackageDefinitionStrategy.NoOp.INSTANCE);
return classLoader.loadClass(type.getName());
}
private void visitNested(java.lang.reflect.Type type, StringBuilder builder) {
if (type instanceof Class) {
Class<?> cl = (Class<?>) type;
if (cl.isPrimitive()) {
builder.append(Type.getType(cl).getDescriptor());
} else {
builder.append('L');
builder.append(cl.getName().replace('.', '/'));
}
} else {
visitType(type, builder);
}
}
// the overload of type Object for Groovy coercions: public void setFoo(Object foo)
private void createTypeConvertingSetter(
ClassVisitor visitor, Type generatedType, ModelProperty<?> property) {
if (!property.isWritable() || !(property.getSchema() instanceof ScalarValueSchema)) {
return;
}
Class<?> propertyClass = property.getType().getConcreteClass();
Type propertyType = Type.getType(propertyClass);
Class<?> boxedClass =
propertyClass.isPrimitive() ? BOXED_TYPES.get(propertyClass) : propertyClass;
Type boxedType = Type.getType(boxedClass);
Method setter = property.getSetter().getMethod();
MethodVisitor methodVisitor =
declareMethod(
visitor,
setter.getName(),
SET_OBJECT_PROPERTY_DESCRIPTOR,
SET_OBJECT_PROPERTY_DESCRIPTOR);
putThisOnStack(methodVisitor);
putTypeConverterFieldValueOnStack(methodVisitor, generatedType);
// Object converted = $typeConverter.convert(foo, Float.class, false);
methodVisitor.visitVarInsn(ALOAD, 1); // put var #1 ('foo') on the stack
methodVisitor.visitLdcInsn(boxedType); // push the constant Class onto the stack
methodVisitor.visitInsn(
propertyClass.isPrimitive()
? ICONST_1
: ICONST_0); // push int 1 or 0 (interpreted as true or false) onto the stack
methodVisitor.visitMethodInsn(
INVOKEINTERFACE,
TYPE_CONVERTER_TYPE.getInternalName(),
"convert",
COERCE_TO_SCALAR_DESCRIPTOR,
true);
methodVisitor.visitTypeInsn(CHECKCAST, boxedType.getInternalName());
if (propertyClass.isPrimitive()) {
unboxType(methodVisitor, propertyClass);
}
// invoke the typed setter, popping 'this' and 'converted' from the stack
methodVisitor.visitMethodInsn(
INVOKEVIRTUAL,
generatedType.getInternalName(),
setter.getName(),
Type.getMethodDescriptor(Type.VOID_TYPE, propertyType),
false);
finishVisitingMethod(methodVisitor);
}
private static List<Method> getInheritedMethods(Class baseClass, List<Method> methods) {
Collections.addAll(methods, baseClass.getMethods());
Class currentClass = baseClass;
while (currentClass != null) {
Method[] protectedMethods = currentClass.getDeclaredMethods();
for (Method method : protectedMethods) {
if (method.getName().indexOf('$') != -1) continue;
if (Modifier.isProtected(method.getModifiers())
&& !containsEquivalentMethod(methods, method)) methods.add(method);
}
currentClass = currentClass.getSuperclass();
}
return methods;
}
private Method getToStringMethod(Class<?> managedTypeClass) {
try {
return managedTypeClass.getMethod("toString");
} catch (NoSuchMethodException e) {
return null;
}
}
private boolean isTransformed(Class clazz, String name, boolean isInterface) {
if (isBytemanClass(name) || !isTransformable(name)) {
return false;
}
boolean found = false;
List<RuleScript> scripts;
if (isInterface) {
scripts = scriptRepository.scriptsForInterfaceName(name);
} else {
scripts = scriptRepository.scriptsForClassName(name);
}
if (scripts != null) {
for (RuleScript script : scripts) {
if (!script.hasTransform(clazz)) {
found = true;
if (isVerbose()) {
System.out.println("Retransforming loaded bootstrap class " + clazz.getName());
}
break;
}
}
}
return found;
}
public Class<? extends T> generate() {
visitor.visitEnd();
byte[] bytecode = visitor.toByteArray();
return DEFINE_CLASS_METHOD.invoke(
type.getClassLoader(), typeName, bytecode, 0, bytecode.length);
}
protected void injectGetByIndex(
ClassWriter classWriter, String targetClassName, List<Field> fields) {
MethodVisitor methodVisitor =
classWriter.visitMethod(
ACC_PUBLIC,
"get",
"(Ljava/lang/Object;I)Ljava/lang/Object;",
null,
new String[] {getInternalName(ILLEGAL_ACCESS_EXCEPTION.getCanonicalName())});
Boxer boxer = new Boxer(methodVisitor);
methodVisitor.visitCode();
methodVisitor.visitVarInsn(ILOAD, 2);
int maxStack = 6;
Label[] labels = new Label[fields.size()];
Label errorLabel = new Label();
for (int i = 0; i < fields.size(); i++) {
labels[i] = new Label();
}
methodVisitor.visitTableSwitchInsn(0, labels.length - 1, errorLabel, labels);
if (!fields.isEmpty()) {
maxStack--;
for (int i = 0; i < fields.size(); i++) {
Field field = fields.get(i);
Class<?> type = field.getType();
String fieldDescriptor = Type.getDescriptor(type);
methodVisitor.visitLabel(labels[i]);
if (i == 0) methodVisitor.visitFrame(F_APPEND, 1, new Object[] {targetClassName}, 0, null);
else methodVisitor.visitFrame(F_SAME, 0, null, 0, null);
if (isPublic(field)) {
methodVisitor.visitVarInsn(ALOAD, 1);
methodVisitor.visitTypeInsn(CHECKCAST, targetClassName);
methodVisitor.visitFieldInsn(GETFIELD, targetClassName, field.getName(), fieldDescriptor);
boxer.box(Type.getType(type));
} else {
injectReflectiveGetter(methodVisitor);
}
methodVisitor.visitInsn(ARETURN);
}
methodVisitor.visitLabel(errorLabel);
methodVisitor.visitFrame(F_SAME, 0, null, 0, null);
}
injectException(methodVisitor, IllegalAccessException.class);
methodVisitor.visitMaxs(maxStack, 3);
methodVisitor.visitEnd();
}
private void castFirstStackElement(MethodVisitor methodVisitor, Class<?> returnType) {
if (returnType.isPrimitive()) {
unboxType(methodVisitor, returnType);
} else {
methodVisitor.visitTypeInsn(CHECKCAST, Type.getInternalName(returnType));
}
}
public static Class getHelperAdapter(Rule rule, Class helperClass, boolean compileToBytecode)
throws CompileException {
Class adapterClass;
// ok we have to create the adapter class
// n.b. we don't bother synchronizing here -- if another rule is racing to create an adapter
// in parallel we don't really care about generating two of them -- we can use whichever
// one gets installed last
try {
String helperName = Type.getInternalName(helperClass);
String compiledHelperName;
// we put the helper in the
if (compileToBytecode) {
compiledHelperName = helperName + "_HelperAdapter_Compiled_" + nextId();
} else {
compiledHelperName = helperName + "_HelperAdapter_Interpreted_" + nextId();
}
byte[] classBytes =
compileBytes(rule, helperClass, helperName, compiledHelperName, compileToBytecode);
String externalName = compiledHelperName.replace('/', '.');
// dump the compiled class bytes if required
Transformer.maybeDumpClass(externalName, classBytes);
// ensure the class is loaded
// think we need to load the generated helper using the class loader of the trigger class
ClassLoader loader = rule.getLoader();
adapterClass = loadHelperAdapter(loader, externalName, classBytes);
} catch (CompileException ce) {
throw ce;
} catch (Throwable th) {
if (compileToBytecode) {
throw new CompileException(
"Compiler.createHelperAdapter : exception creating compiled helper adapter for "
+ helperClass.getName(),
th);
} else {
throw new CompileException(
"Compiler.createHelperAdapter : exception creating interpreted helper adapter for "
+ helperClass.getName(),
th);
}
}
return adapterClass;
}
private ClassBuilderImpl(Class<T> type) {
this.type = type;
visitor = new ClassWriter(ClassWriter.COMPUTE_MAXS);
typeName = type.getName() + "_Decorated";
generatedType = Type.getType("L" + typeName.replaceAll("\\.", "/") + ";");
superclassType = Type.getType(type);
}
private void writeDelegateMethods(
final ClassVisitor visitor,
final Type generatedType,
StructSchema<?> delegateSchema,
Set<Class<?>> typesToDelegate) {
Class<?> delegateClass = delegateSchema.getType().getConcreteClass();
Type delegateType = Type.getType(delegateClass);
Map<Equivalence.Wrapper<Method>, Map<Class<?>, Method>> methodsToDelegate = Maps.newHashMap();
for (Class<?> typeToDelegate : typesToDelegate) {
for (Method methodToDelegate : typeToDelegate.getMethods()) {
if (ModelSchemaUtils.isIgnoredMethod(methodToDelegate)) {
continue;
}
Equivalence.Wrapper<Method> methodKey = METHOD_EQUIVALENCE.wrap(methodToDelegate);
Map<Class<?>, Method> methodsByReturnType = methodsToDelegate.get(methodKey);
if (methodsByReturnType == null) {
methodsByReturnType = Maps.newHashMap();
methodsToDelegate.put(methodKey, methodsByReturnType);
}
methodsByReturnType.put(methodToDelegate.getReturnType(), methodToDelegate);
}
}
Set<Equivalence.Wrapper<Method>> delegateMethodKeys =
ImmutableSet.copyOf(
Iterables.transform(
Arrays.asList(delegateClass.getMethods()),
new Function<Method, Equivalence.Wrapper<Method>>() {
@Override
public Equivalence.Wrapper<Method> apply(Method method) {
return METHOD_EQUIVALENCE.wrap(method);
}
}));
for (Map.Entry<Equivalence.Wrapper<Method>, Map<Class<?>, Method>> entry :
methodsToDelegate.entrySet()) {
Equivalence.Wrapper<Method> methodKey = entry.getKey();
if (!delegateMethodKeys.contains(methodKey)) {
continue;
}
Map<Class<?>, Method> methodsByReturnType = entry.getValue();
for (Method methodToDelegate : methodsByReturnType.values()) {
writeDelegatedMethod(visitor, generatedType, delegateType, methodToDelegate);
}
}
}
@Test
public void testEnclosingMethod() throws Exception {
for (Class<?> type : standardTypes) {
Matcher<MethodDescription> matcher;
if (type.getEnclosingMethod() != null) {
matcher =
CoreMatchers.<MethodDescription>is(
new MethodDescription.ForLoadedMethod(type.getEnclosingMethod()));
} else if (type.getEnclosingConstructor() != null) {
matcher =
CoreMatchers.<MethodDescription>is(
new MethodDescription.ForLoadedConstructor(type.getEnclosingConstructor()));
} else {
matcher = nullValue(MethodDescription.class);
}
assertThat(describe(type).getEnclosingMethod(), matcher);
}
}
@Override
public FieldAccessor build(ClassLoader classLoader) {
String targetClassType = getInternalName(this.getTarget().getName());
ClassWriter classWriter = this.getClassWriter();
injectFieldTable(classWriter);
injectConstructor(classWriter);
injectGetTargetClass(classWriter, this.getTarget());
List<Field> fields = new ArrayList<>();
Class<?> current = this.getTarget();
while (current != Object.class) {
for (Field field : current.getDeclaredFields()) {
fields.add(field);
}
current = current.getSuperclass();
}
injectGetByIndex(classWriter, targetClassType, fields);
injectSetByIndex(classWriter, targetClassType, fields);
injectGetByName(classWriter);
injectSetByName(classWriter);
injectGetFieldTable(classWriter);
injectGetIndex(classWriter);
classWriter.visitEnd();
Class<?> result =
CompilerService.create(classLoader)
.defineClass(
getExternalName(
getAccessorNameInternal(
this.getTarget(),
this
.getAccessorType())), // this is somewhat redundant but maybe in the
// future the class-name-format changes
this.getClassWriter().toByteArray());
return (FieldAccessor) instantiate(result);
}
/**
* Creates a visitor which will be used as a base class for initiating the visit. It is not
* necessary that the class is the superclass, any will do, as long as it can be loaded from a
* byte[].
*
* @param baseClass
* @return
*/
private ClassReader createClassVisitor(final Class baseClass) {
try {
String name = baseClass.getName();
String path = name.replace('.', '/') + ".class";
InputStream in = loader.getResourceAsStream(path);
return new ClassReader(in);
} catch (IOException e) {
throw new GroovyRuntimeException(
"Unable to generate a proxy for " + baseClass + " from class loader " + loader, e);
}
}
protected void injectException(
MethodVisitor methodVisitor, Class<? extends Throwable> throwable) {
methodVisitor.visitTypeInsn(NEW, getInternalName(throwable.getCanonicalName()));
methodVisitor.visitInsn(DUP);
methodVisitor.visitTypeInsn(NEW, "java/lang/StringBuilder");
methodVisitor.visitInsn(DUP);
methodVisitor.visitLdcInsn("Invalid index: ");
methodVisitor.visitMethodInsn(
INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V");
methodVisitor.visitVarInsn(ILOAD, 2);
methodVisitor.visitMethodInsn(
INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(I)Ljava/lang/StringBuilder;");
methodVisitor.visitMethodInsn(
INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;");
methodVisitor.visitMethodInsn(
INVOKESPECIAL,
getInternalName(throwable.getCanonicalName()),
"<init>",
"(Ljava/lang/String;)V");
methodVisitor.visitInsn(ATHROW);
}
@Test
public void testIsPackageDescription() throws Exception {
assertThat(
describe(
Class.forName(
Sample.class.getPackage().getName()
+ "."
+ PackageDescription.PACKAGE_CLASS_NAME))
.isPackageType(),
is(true));
assertThat(describe(Object.class).isPackageType(), is(false));
}
private static void resetLambdaClassSequenceNumber() {
try {
Field counterField =
Class.forName("java.lang.invoke.InnerClassLambdaMetafactory").getDeclaredField("counter");
counterField.setAccessible(true);
AtomicInteger counter = (AtomicInteger) counterField.get(null);
counter.set(0);
} catch (Throwable t) {
// print to stdout to keep in sync with other log output
System.out.println(
"WARNING: Failed to start class numbering from one. Don't worry, it's cosmetic, "
+ "but please file a bug report and tell on which JDK version this happened.");
t.printStackTrace(System.out);
}
}
private void assertAnnotations(Class<?> type) {
assertThat(
describe(type).getDeclaredAnnotations(),
hasItems(
new AnnotationList.ForLoadedAnnotations(type.getDeclaredAnnotations())
.toArray(new AnnotationDescription[type.getDeclaredAnnotations().length])));
assertThat(
describe(type).getDeclaredAnnotations().size(), is(type.getDeclaredAnnotations().length));
assertThat(
describe(type).getInheritedAnnotations(),
hasItems(
new AnnotationList.ForLoadedAnnotations(type.getAnnotations())
.toArray(new AnnotationDescription[type.getAnnotations().length])));
assertThat(describe(type).getInheritedAnnotations().size(), is(type.getAnnotations().length));
}
private void unboxType(MethodVisitor methodVisitor, Class<?> primitiveClass) {
// Float f = (Float) tmp
// f==null?0:f.floatValue()
Class<?> boxedType = BOXED_TYPES.get(primitiveClass);
Type primitiveType = Type.getType(primitiveClass);
methodVisitor.visitTypeInsn(CHECKCAST, Type.getInternalName(boxedType));
methodVisitor.visitInsn(DUP);
Label exit = new Label();
Label elseValue = new Label();
methodVisitor.visitJumpInsn(IFNONNULL, elseValue);
methodVisitor.visitInsn(POP);
pushDefaultValue(methodVisitor, primitiveClass);
methodVisitor.visitJumpInsn(GOTO, exit);
methodVisitor.visitLabel(elseValue);
methodVisitor.visitMethodInsn(
INVOKEVIRTUAL,
Type.getInternalName(boxedType),
primitiveClass.getSimpleName() + "Value",
Type.getMethodDescriptor(primitiveType),
false);
methodVisitor.visitLabel(exit);
}
private String proxyName() {
String name = delegateClass != null ? delegateClass.getName() : superClass.getName();
int index = name.lastIndexOf('.');
if (index == -1) return name + pxyCounter.incrementAndGet() + "_groovyProxy";
return name.substring(index + 1, name.length()) + pxyCounter.incrementAndGet() + "_groovyProxy";
}