List of usage examples for org.objectweb.asm Opcodes PUTFIELD
int PUTFIELD
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From source file:org.actorsguildframework.internal.codegenerator.BeanCreator.java
License:Apache License
/** * Writes the accessor methods for @Prop generated properties. * @param bcd the class descriptor/*from w w w.j a va2 s . c om*/ * @param classNameInternal the internal name of this class * @param cw the ClassWriter to write to */ public static void writePropAccessors(BeanClassDescriptor bcd, String classNameInternal, ClassWriter cw) { String classNameDescriptor = "L" + classNameInternal + ";"; MethodVisitor mv; for (int i = 0; i < bcd.getPropertyCount(); i++) { PropertyDescriptor pd = bcd.getProperty(i); if (!pd.getPropertySource().isGenerating()) continue; { Type t = Type.getType(pd.getPropertyClass()); Method orig = pd.getGetter(); mv = cw.visitMethod( GenerationUtils.convertAccessModifiers(orig.getModifiers()) + (bcd.isThreadSafe() ? Opcodes.ACC_SYNCHRONIZED : 0), orig.getName(), Type.getMethodDescriptor(orig), GenericTypeHelper.getSignature(orig), null); mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, classNameInternal, String.format(PROP_FIELD_NAME_TEMPLATE, pd.getName()), Type.getDescriptor(pd.getPropertyClass())); mv.visitInsn(t.getOpcode(Opcodes.IRETURN)); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", classNameDescriptor, null, l0, l1, 0); mv.visitMaxs(0, 0); mv.visitEnd(); } if (pd.getAccess().isWritable()) { Type t = Type.getType(pd.getPropertyClass()); Method orig = pd.getSetter(); mv = cw.visitMethod( GenerationUtils.convertAccessModifiers(orig.getModifiers()) + (bcd.isThreadSafe() ? Opcodes.ACC_SYNCHRONIZED : 0), orig.getName(), Type.getMethodDescriptor(orig), GenericTypeHelper.getSignature(orig), null); mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitVarInsn(t.getOpcode(Opcodes.ILOAD), 1); mv.visitFieldInsn(Opcodes.PUTFIELD, classNameInternal, String.format(PROP_FIELD_NAME_TEMPLATE, pd.getName()), Type.getDescriptor(pd.getPropertyClass())); mv.visitInsn(Opcodes.RETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLocalVariable("this", classNameDescriptor, null, l0, l1, 0); mv.visitLocalVariable("value", Type.getDescriptor(pd.getPropertyClass()), null, l0, l1, 1); mv.visitMaxs(0, 0); mv.visitEnd(); } } }
From source file:org.actorsguildframework.internal.codegenerator.BeanCreator.java
License:Apache License
/** * Writes the bean constructor to the given ClassWriter. * @param beanClass the original bean class to extend * @param bcd the descriptor of the bean * @param classNameInternal the internal name of the new class * @param cw the ClassWriter to write to * @param snippetWriter if not null, this will be invoked to add a snippet * after the invocation of the super constructor *///from w ww .ja v a 2 s .com public static void writeConstructor(Class<?> beanClass, BeanClassDescriptor bcd, String classNameInternal, ClassWriter cw, SnippetWriter snippetWriter) { String classNameDescriptor = "L" + classNameInternal + ";"; int localPropertySize = 0; ArrayList<PropertyDescriptor> localVarProperties = new ArrayList<PropertyDescriptor>(); for (int i = 0; i < bcd.getPropertyCount(); i++) { PropertyDescriptor pd = bcd.getProperty(i); if (pd.getPropertySource().isGenerating() || (pd.getDefaultValue() != null)) { localVarProperties.add(pd); localPropertySize += Type.getType(pd.getPropertyClass()).getSize(); } } final int locVarThis = 0; final int locVarController = 1; final int locVarProps = 2; final int locVarPropertiesOffset = 3; final int locVarP = 3 + localPropertySize; final int locVarK = 4 + localPropertySize; final int locVarV = 5 + localPropertySize; MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(Lorg/actorsguildframework/internal/Controller;Lorg/actorsguildframework/Props;)V", null, null); mv.visitCode(); Label lTry = new Label(); Label lCatch = new Label(); mv.visitTryCatchBlock(lTry, lCatch, lCatch, "java/lang/ClassCastException"); Label lBegin = new Label(); mv.visitLabel(lBegin); mv.visitVarInsn(Opcodes.ALOAD, locVarThis); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(beanClass), "<init>", "()V"); if (snippetWriter != null) snippetWriter.write(mv); Label lPropertyInit = new Label(); mv.visitLabel(lPropertyInit); // load default values into the local variables for each property that must be set int varCount = 0; for (PropertyDescriptor pd : localVarProperties) { Type pt = Type.getType(pd.getPropertyClass()); if (pd.getDefaultValue() != null) mv.visitFieldInsn(Opcodes.GETSTATIC, Type.getInternalName(pd.getDefaultValue().getDeclaringClass()), pd.getDefaultValue().getName(), Type.getDescriptor(pd.getDefaultValue().getType())); else GenerationUtils.generateLoadDefault(mv, pd.getPropertyClass()); mv.visitVarInsn(pt.getOpcode(Opcodes.ISTORE), locVarPropertiesOffset + varCount); varCount += pt.getSize(); } // loop through the props argument's list mv.visitVarInsn(Opcodes.ALOAD, locVarProps); mv.visitVarInsn(Opcodes.ASTORE, locVarP); Label lWhile = new Label(); Label lEndWhile = new Label(); Label lWhileBody = new Label(); mv.visitLabel(lWhile); mv.visitJumpInsn(Opcodes.GOTO, lEndWhile); mv.visitLabel(lWhileBody); mv.visitVarInsn(Opcodes.ALOAD, locVarP); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "org/actorsguildframework/Props", "getKey", "()Ljava/lang/String;"); mv.visitVarInsn(Opcodes.ASTORE, locVarK); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "org/actorsguildframework/Props", "getValue", "()Ljava/lang/Object;"); mv.visitVarInsn(Opcodes.ASTORE, locVarV); mv.visitLabel(lTry); // write an if for each property Label lEndIf = new Label(); varCount = 0; int ifCount = 0; for (int i = 0; i < bcd.getPropertyCount(); i++) { PropertyDescriptor pd = bcd.getProperty(i); boolean usesLocal = pd.getPropertySource().isGenerating() || (pd.getDefaultValue() != null); Class<?> propClass = pd.getPropertyClass(); Type pt = Type.getType(propClass); mv.visitVarInsn(Opcodes.ALOAD, locVarK); mv.visitLdcInsn(pd.getName()); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z"); Label lElse = new Label(); mv.visitJumpInsn(Opcodes.IFEQ, lElse); if (!usesLocal) mv.visitVarInsn(Opcodes.ALOAD, locVarThis); // for setter invocation, load 'this' if (propClass.isPrimitive()) { mv.visitLdcInsn(pd.getName()); mv.visitVarInsn(Opcodes.ALOAD, locVarV); mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(BeanHelper.class), String.format("get%s%sFromPropValue", propClass.getName().substring(0, 1).toUpperCase(Locale.US), propClass.getName().substring(1)), "(Ljava/lang/String;Ljava/lang/Object;)" + pt.getDescriptor()); } else if (!propClass.equals(Object.class)) { mv.visitVarInsn(Opcodes.ALOAD, locVarV); mv.visitTypeInsn(Opcodes.CHECKCAST, pt.getInternalName()); } else mv.visitVarInsn(Opcodes.ALOAD, locVarV); if (!usesLocal) mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classNameInternal, pd.getSetter().getName(), Type.getMethodDescriptor(pd.getSetter())); else mv.visitVarInsn(pt.getOpcode(Opcodes.ISTORE), varCount + locVarPropertiesOffset); mv.visitJumpInsn(Opcodes.GOTO, lEndIf); mv.visitLabel(lElse); ifCount++; if (usesLocal) varCount += pt.getSize(); } // else (==> if not prop matched) throw IllegalArgumentException mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(IllegalArgumentException.class)); mv.visitInsn(Opcodes.DUP); mv.visitLdcInsn("Unknown property \"%s\"."); mv.visitInsn(Opcodes.ICONST_1); mv.visitTypeInsn(Opcodes.ANEWARRAY, "java/lang/Object"); mv.visitInsn(Opcodes.DUP); mv.visitInsn(Opcodes.ICONST_0); mv.visitVarInsn(Opcodes.ALOAD, locVarK); mv.visitInsn(Opcodes.AASTORE); mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/String", "format", "(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;"); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(IllegalArgumentException.class), "<init>", "(Ljava/lang/String;)V"); mv.visitInsn(Opcodes.ATHROW); mv.visitLabel(lCatch); mv.visitInsn(Opcodes.POP); // pop the exception object (not needed) mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(IllegalArgumentException.class)); mv.visitInsn(Opcodes.DUP); mv.visitLdcInsn("Incompatible type for property \"%s\". Got %s."); mv.visitInsn(Opcodes.ICONST_2); mv.visitTypeInsn(Opcodes.ANEWARRAY, "java/lang/Object"); mv.visitInsn(Opcodes.DUP); mv.visitInsn(Opcodes.ICONST_0); mv.visitVarInsn(Opcodes.ALOAD, locVarK); mv.visitInsn(Opcodes.AASTORE); mv.visitInsn(Opcodes.DUP); mv.visitInsn(Opcodes.ICONST_1); mv.visitVarInsn(Opcodes.ALOAD, locVarV); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;"); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;"); mv.visitInsn(Opcodes.AASTORE); mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/String", "format", "(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;"); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(IllegalArgumentException.class), "<init>", "(Ljava/lang/String;)V"); mv.visitInsn(Opcodes.ATHROW); mv.visitLabel(lEndIf); mv.visitVarInsn(Opcodes.ALOAD, locVarP); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "org/actorsguildframework/Props", "tail", "()Lorg/actorsguildframework/Props;"); mv.visitVarInsn(Opcodes.ASTORE, locVarP); mv.visitLabel(lEndWhile); mv.visitVarInsn(Opcodes.ALOAD, locVarP); mv.visitJumpInsn(Opcodes.IFNONNULL, lWhileBody); // write local variables back into properties varCount = 0; for (PropertyDescriptor pd : localVarProperties) { Type pt = Type.getType(pd.getPropertyClass()); mv.visitVarInsn(Opcodes.ALOAD, locVarThis); if (pd.getPropertySource() == PropertySource.ABSTRACT_METHOD) { mv.visitVarInsn(pt.getOpcode(Opcodes.ILOAD), locVarPropertiesOffset + varCount); mv.visitFieldInsn(Opcodes.PUTFIELD, classNameInternal, String.format(PROP_FIELD_NAME_TEMPLATE, pd.getName()), pt.getDescriptor()); } else if (pd.getPropertySource() == PropertySource.USER_WRITTEN) { mv.visitVarInsn(pt.getOpcode(Opcodes.ILOAD), locVarPropertiesOffset + varCount); mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, classNameInternal, pd.getSetter().getName(), Type.getMethodDescriptor(pd.getSetter())); } else throw new RuntimeException("Internal error"); varCount += pt.getSize(); } // if bean is thread-safe, publish all writes now if (bcd.isThreadSafe()) { mv.visitVarInsn(Opcodes.ALOAD, locVarThis); mv.visitInsn(Opcodes.DUP); mv.visitInsn(Opcodes.MONITORENTER); mv.visitInsn(Opcodes.MONITOREXIT); } mv.visitInsn(Opcodes.RETURN); Label lEnd = new Label(); mv.visitLabel(lEnd); mv.visitLocalVariable("this", classNameDescriptor, null, lBegin, lEnd, locVarThis); mv.visitLocalVariable("controller", "Lorg/actorsguildframework/internal/Controller;", null, lBegin, lEnd, locVarController); mv.visitLocalVariable("props", "Lorg/actorsguildframework/Props;", null, lBegin, lEnd, locVarProps); varCount = 0; for (PropertyDescriptor pd : localVarProperties) { Type pt = Type.getType(pd.getPropertyClass()); mv.visitLocalVariable("__" + pd.getName(), pt.getDescriptor(), GenericTypeHelper.getSignature(pd.getPropertyType()), lPropertyInit, lEnd, locVarPropertiesOffset + varCount); varCount += pt.getSize(); } mv.visitLocalVariable("p", "Lorg/actorsguildframework/Props;", null, lPropertyInit, lEnd, locVarP); mv.visitLocalVariable("k", "Ljava/lang/String;", null, lWhile, lEndWhile, locVarK); mv.visitLocalVariable("v", "Ljava/lang/Object;", null, lWhile, lEndWhile, locVarV); mv.visitMaxs(0, 0); mv.visitEnd(); }
From source file:org.adjective.stout.operation.AssignFieldStatement.java
License:Apache License
public void getInstructions(ExecutionStack stack, InstructionCollector collector) { UnresolvedType owner = _owner;/*from w w w.j ava 2s. c o m*/ if (owner == null) { owner = stack.currentClass(); } UnresolvedType type = _fieldType; if (type == null) { type = owner.getFieldType(_fieldName); if (type == null) { throw new OperationException("No such field " + _fieldName + " in " + owner); } } if (_target == null) { addInstruction(collector, ThisExpression.LOAD_THIS); } else { _target.getInstructions(stack, collector); } _expression.getInstructions(stack, collector); addInstruction(collector, new FieldInstruction(Opcodes.PUTFIELD, owner.getInternalName(), _fieldName, type.getDescriptor())); }
From source file:org.adjective.stout.tools.StackVisualiserMethodVisitor.java
License:Apache License
public void visitFieldInsn(int opcode, String owner, String name, String desc) { String description = owner + "." + name; switch (opcode) { case Opcodes.GETFIELD: pop();//from w w w . java 2 s. c o m push(description, desc); break; case Opcodes.PUTFIELD: pop(2); break; case Opcodes.GETSTATIC: push(description, desc); break; case Opcodes.PUTSTATIC: pop(1); break; } print(opcode, description); }
From source file:org.apache.cxf.binding.corba.utils.CorbaAnyHelper.java
License:Apache License
private static void addInsertOverride(ClassWriter cw) { MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "insert_Streamable", "(Lorg/omg/CORBA/portable/Streamable;)V", null, null); mv.visitCode();/*from w ww.j a va 2s . co m*/ Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(43, l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/sun/corba/se/impl/corba/AnyImpl", "insert_Streamable", "(Lorg/omg/CORBA/portable/Streamable;)V"); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(44, l1); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitFieldInsn(Opcodes.PUTFIELD, "org/apache/cxf/binding/corba/utils/FixedAnyImpl", "obj", "Lorg/omg/CORBA/portable/Streamable;"); Label l2 = new Label(); mv.visitLabel(l2); mv.visitLineNumber(45, l2); mv.visitInsn(Opcodes.RETURN); Label l3 = new Label(); mv.visitLabel(l3); mv.visitLocalVariable("this", "Lorg/apache/cxf/binding/corba/utils/FixedAnyImpl;", null, l0, l3, 0); mv.visitLocalVariable("s", "Lorg/omg/CORBA/portable/Streamable;", null, l0, l3, 1); mv.visitMaxs(2, 2); mv.visitEnd(); }
From source file:org.apache.cxf.jaxb.JAXBUtils.java
License:Apache License
private static Class<?> createNamespaceWrapperInternal(ASMHelper helper, ClassWriter cw) { String className = "org.apache.cxf.jaxb.NamespaceMapperInternal"; FieldVisitor fv;//from w ww . j a v a 2 s . c o m MethodVisitor mv; cw.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL + Opcodes.ACC_SUPER, "org/apache/cxf/jaxb/NamespaceMapperInternal", null, "com/sun/xml/internal/bind/marshaller/NamespacePrefixMapper", null); cw.visitSource("NamespaceMapper.java", null); fv = cw.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_FINAL, "nspref", "Ljava/util/Map;", "Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;", null); fv.visitEnd(); mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(Ljava/util/Map;)V", "(Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;)V", null); mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(30, l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "com/sun/xml/internal/bind/marshaller/NamespacePrefixMapper", "<init>", "()V"); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(31, l1); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitFieldInsn(Opcodes.PUTFIELD, "org/apache/cxf/jaxb/NamespaceMapperInternal", "nspref", "Ljava/util/Map;"); Label l2 = new Label(); mv.visitLabel(l2); mv.visitLineNumber(32, l2); mv.visitInsn(Opcodes.RETURN); Label l3 = new Label(); mv.visitLabel(l3); mv.visitLocalVariable("this", "Lorg/apache/cxf/jaxb/NamespaceMapperInternal;", null, l0, l3, 0); mv.visitLocalVariable("nspref", "Ljava/util/Map;", "Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;", l0, l3, 1); mv.visitMaxs(2, 2); mv.visitEnd(); mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "getPreferredPrefix", "(Ljava/lang/String;Ljava/lang/String;Z)Ljava/lang/String;", null, null); mv.visitCode(); l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(38, l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, "org/apache/cxf/jaxb/NamespaceMapperInternal", "nspref", "Ljava/util/Map;"); mv.visitVarInsn(Opcodes.ALOAD, 1); mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Map", "get", "(Ljava/lang/Object;)Ljava/lang/Object;"); mv.visitTypeInsn(Opcodes.CHECKCAST, "java/lang/String"); mv.visitVarInsn(Opcodes.ASTORE, 4); l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(39, l1); mv.visitVarInsn(Opcodes.ALOAD, 4); l2 = new Label(); mv.visitJumpInsn(Opcodes.IFNULL, l2); l3 = new Label(); mv.visitLabel(l3); mv.visitLineNumber(40, l3); mv.visitVarInsn(Opcodes.ALOAD, 4); mv.visitInsn(Opcodes.ARETURN); mv.visitLabel(l2); mv.visitLineNumber(42, l2); mv.visitVarInsn(Opcodes.ALOAD, 2); mv.visitInsn(Opcodes.ARETURN); Label l4 = new Label(); mv.visitLabel(l4); mv.visitLocalVariable("this", "Lorg/apache/cxf/jaxb/NamespaceMapperInternal;", null, l0, l4, 0); mv.visitLocalVariable("namespaceUri", "Ljava/lang/String;", null, l0, l4, 1); mv.visitLocalVariable("suggestion", "Ljava/lang/String;", null, l0, l4, 2); mv.visitLocalVariable("requirePrefix", "Z", null, l0, l4, 3); mv.visitLocalVariable("prefix", "Ljava/lang/String;", null, l1, l4, 4); mv.visitMaxs(2, 5); mv.visitEnd(); cw.visitEnd(); byte bts[] = cw.toByteArray(); return helper.loadClass(className, JAXBUtils.class, bts); }
From source file:org.apache.cxf.jaxb.WrapperHelperCompiler.java
License:Apache License
private static void addConstructor(String newClassName, ClassWriter cw, Class<?> objectFactory) { if (objectFactory != null) { String ofName = "L" + periodToSlashes(objectFactory.getName()) + ";"; FieldVisitor fv = cw.visitField(0, "factory", ofName, null, null); fv.visitEnd();//from ww w . j a v a 2s . c o m } MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); Label l0 = new Label(); mv.visitLabel(l0); mv.visitLineNumber(102, l0); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); if (objectFactory != null) { mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitTypeInsn(Opcodes.NEW, periodToSlashes(objectFactory.getName())); mv.visitInsn(Opcodes.DUP); mv.visitMethodInsn(Opcodes.INVOKESPECIAL, periodToSlashes(objectFactory.getName()), "<init>", "()V"); mv.visitFieldInsn(Opcodes.PUTFIELD, periodToSlashes(newClassName), "factory", "L" + periodToSlashes(objectFactory.getName()) + ";"); } mv.visitInsn(Opcodes.RETURN); Label l1 = new Label(); mv.visitLabel(l1); mv.visitLineNumber(103, l0); mv.visitLocalVariable("this", "L" + newClassName + ";", null, l0, l1, 0); mv.visitMaxs(0, 0); mv.visitEnd(); }
From source file:org.apache.cxf.jaxws.WrapperClassGenerator.java
License:Apache License
private void generateMessagePart(ClassWriter cw, MessagePartInfo mpi, Method method, String className) { if (Boolean.TRUE.equals(mpi.getProperty(ReflectionServiceFactoryBean.HEADER))) { return;/* ww w . ja v a 2s. c o m*/ } String classFileName = periodToSlashes(className); String name = mpi.getName().getLocalPart(); Class clz = mpi.getTypeClass(); Object obj = mpi.getProperty(ReflectionServiceFactoryBean.RAW_CLASS); if (obj != null) { clz = (Class) obj; } Type genericType = (Type) mpi.getProperty(ReflectionServiceFactoryBean.GENERIC_TYPE); if (genericType instanceof ParameterizedType) { ParameterizedType tp = (ParameterizedType) genericType; if (tp.getRawType() instanceof Class && Holder.class.isAssignableFrom((Class) tp.getRawType())) { genericType = tp.getActualTypeArguments()[0]; } } String classCode = getClassCode(clz); String fieldDescriptor = null; if (genericType instanceof ParameterizedType) { if (Collection.class.isAssignableFrom(clz) || clz.isArray()) { ParameterizedType ptype = (ParameterizedType) genericType; Type[] types = ptype.getActualTypeArguments(); // TODO: more complex Parameterized type if (types.length > 0) { if (types[0] instanceof Class) { fieldDescriptor = getClassCode(genericType); } else if (types[0] instanceof GenericArrayType) { fieldDescriptor = getClassCode(genericType); } else if (types[0] instanceof ParameterizedType) { classCode = getClassCode(((ParameterizedType) types[0]).getRawType()); fieldDescriptor = getClassCode(genericType); } } } else { classCode = getClassCode(((ParameterizedType) genericType).getRawType()); fieldDescriptor = getClassCode(genericType); } } String fieldName = JavaUtils.isJavaKeyword(name) ? JavaUtils.makeNonJavaKeyword(name) : name; FieldVisitor fv = cw.visitField(Opcodes.ACC_PRIVATE, fieldName, classCode, fieldDescriptor, null); AnnotationVisitor av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlElement;", true); av0.visit("name", name); if (factory.isWrapperPartQualified(mpi)) { av0.visit("namespace", mpi.getConcreteName().getNamespaceURI()); } if (factory.isWrapperPartNillable(mpi)) { av0.visit("nillable", Boolean.TRUE); } if (factory.getWrapperPartMinOccurs(mpi) == 1) { av0.visit("required", Boolean.TRUE); } av0.visitEnd(); List<Annotation> jaxbAnnos = getJaxbAnnos(mpi); addJAXBAnnotations(fv, jaxbAnnos); fv.visitEnd(); String methodName = JAXBUtils.nameToIdentifier(name, JAXBUtils.IdentifierType.GETTER); MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, methodName, "()" + classCode, fieldDescriptor == null ? null : "()" + fieldDescriptor, null); mv.visitCode(); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitFieldInsn(Opcodes.GETFIELD, classFileName, fieldName, classCode); mv.visitInsn(org.objectweb.asm.Type.getType(classCode).getOpcode(Opcodes.IRETURN)); mv.visitMaxs(0, 0); mv.visitEnd(); methodName = JAXBUtils.nameToIdentifier(name, JAXBUtils.IdentifierType.SETTER); mv = cw.visitMethod(Opcodes.ACC_PUBLIC, methodName, "(" + classCode + ")V", fieldDescriptor == null ? null : "(" + fieldDescriptor + ")V", null); mv.visitCode(); mv.visitVarInsn(Opcodes.ALOAD, 0); org.objectweb.asm.Type setType = org.objectweb.asm.Type.getType(classCode); mv.visitVarInsn(setType.getOpcode(Opcodes.ILOAD), 1); mv.visitFieldInsn(Opcodes.PUTFIELD, className, fieldName, classCode); mv.visitInsn(Opcodes.RETURN); mv.visitMaxs(0, 0); mv.visitEnd(); }
From source file:org.apache.drill.exec.compile.bytecode.InstructionModifier.java
License:Apache License
@Override public void visitFieldInsn(int opcode, String owner, String name, String desc) { ReplacingBasicValue v;/*from w ww. ja v a 2s.co m*/ switch (opcode) { case Opcodes.PUTFIELD: // pop twice for put. v = popCurrent(true); if (v != null) { if (v.isFunctionReturn) { super.visitFieldInsn(opcode, owner, name, desc); return; } else { // we are trying to store a replaced variable in an external context, we need to generate an instance and // transfer it out. ValueHolderSub sub = oldToNew.get(v.getIndex()); sub.transferToExternal(adder, owner, name, desc); return; } } case Opcodes.GETFIELD: // pop again. v = popCurrent(); if (v != null) { // super.visitFieldInsn(opcode, owner, name, desc); ValueHolderSub sub = oldToNew.get(v.getIndex()); sub.addInsn(name, this, opcode); return; } } super.visitFieldInsn(opcode, owner, name, desc); }
From source file:org.apache.felix.scrplugin.helper.ClassModifier.java
License:Apache License
private static void createMethod(final ClassWriter cw, final String className, final String referenceName, final String fieldName, final String typeName, final boolean bind) { final org.objectweb.asm.Type type = org.objectweb.asm.Type.getType("L" + typeName.replace('.', '/') + ";"); final String methodName = (bind ? "" : "un") + "bind" + referenceName.substring(0, 1).toUpperCase() + referenceName.substring(1); final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PROTECTED, methodName, "(" + type.toString() + ")V", null, null);/*from w w w . jav a 2 s .co m*/ mv.visitVarInsn(Opcodes.ALOAD, 0); if (bind) { mv.visitVarInsn(type.getOpcode(Opcodes.ILOAD), 1); mv.visitFieldInsn(Opcodes.PUTFIELD, className.replace('.', '/'), fieldName, type.toString()); } else { mv.visitFieldInsn(Opcodes.GETFIELD, className.replace('.', '/'), fieldName, type.toString()); mv.visitVarInsn(Opcodes.ALOAD, 1); final Label jmpLabel = new Label(); mv.visitJumpInsn(Opcodes.IF_ACMPNE, jmpLabel); mv.visitVarInsn(Opcodes.ALOAD, 0); mv.visitInsn(Opcodes.ACONST_NULL); mv.visitFieldInsn(Opcodes.PUTFIELD, className.replace('.', '/'), fieldName, type.toString()); mv.visitLabel(jmpLabel); } mv.visitInsn(Opcodes.RETURN); mv.visitMaxs(2, 2); }