Example usage for org.objectweb.asm Opcodes RETURN

List of usage examples for org.objectweb.asm Opcodes RETURN

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int RETURN

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Usage

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;// w w  w  . ja v a  2  s  .  com
    }
    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.DrillInitMethodVisitor.java

License:Apache License

@Override
public void visitInsn(int opcode) {
    if (opcode == Opcodes.RETURN) {
        super.visitVarInsn(Opcodes.ALOAD, 0); // load this.
        super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, className, SignatureHolder.DRILL_INIT_METHOD, "()V"); // execute drill init.
    }/*w w w .java2  s .  c  om*/
    super.visitInsn(opcode);
}

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);/*  www  .j a v  a2  s.  c  o 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);
}

From source file:org.apache.felix.scrplugin.tags.qdox.QDoxJavaClassDescription.java

License:Apache License

protected void createMethod(ClassWriter cw, String propertyName, String typeName, boolean bind) {
    final org.objectweb.asm.Type type = org.objectweb.asm.Type.getType("L" + typeName.replace('.', '/') + ";");
    final String methodName = (bind ? "" : "un") + "bind" + propertyName.substring(0, 1).toUpperCase()
            + propertyName.substring(1);
    MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PROTECTED, methodName, "(" + type.toString() + ")V", null,
            null);/*  w  ww.j  av a 2 s .  c o  m*/
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    if (bind) {
        mv.visitVarInsn(type.getOpcode(Opcodes.ILOAD), 1);
        mv.visitFieldInsn(Opcodes.PUTFIELD, this.getName().replace('.', '/'), propertyName, type.toString());
    } else {
        mv.visitFieldInsn(Opcodes.GETFIELD, this.getName().replace('.', '/'), propertyName, 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, this.getName().replace('.', '/'), propertyName, type.toString());
        mv.visitLabel(jmpLabel);
    }
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(2, 2);
    // add to qdox
    final JavaParameter param = new JavaParameter(new Type(typeName), "param");
    final JavaParameter[] params = new JavaParameter[] { param };
    final com.thoughtworks.qdox.model.JavaMethod meth = new com.thoughtworks.qdox.model.JavaMethod();
    meth.setName(methodName);
    for (int i = 0; i < params.length; i++) {
        meth.addParameter(params[i]);
    }
    meth.setModifiers(new String[] { "protected" });
    this.javaClass.addMethod(meth);
}

From source file:org.apache.tuscany.sca.interfacedef.java.jaxrs.CodeGenerationHelper.java

License:Apache License

public static int getReturnOPCode(String signature) {
    if ("Z".equals(signature) || "B".equals(signature) || "C".equals(signature) || "S".equals(signature)
            || "I".equals(signature)) {
        return Opcodes.IRETURN;
    }//from   ww w.  j a v a  2 s  .  com

    if ("J".equals(signature)) {
        return Opcodes.LRETURN;
    }

    if ("F".equals(signature)) {
        return Opcodes.FRETURN;
    }

    if ("D".equals(signature)) {
        return Opcodes.DRETURN;
    }
    if ("V".equals(signature)) {
        return Opcodes.RETURN;
    }

    return Opcodes.ARETURN;

}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createContainerConstructor(final String enhancingClassName, final String enhancedClassName,
        final String descEnhancer, final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE, Class.class, SessionImpl.class, Object.class, Boolean.TYPE),
            null, null);//ww  w .j av  a  2  s . com
    mv.visitCode();

    final Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, enhancingClassName, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE));

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_TYPE,
            Enhancer.DESCRIPTOR_CLASS);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 2);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_ID,
            Enhancer.DESCRIPTOR_OBJECT);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ILOAD, 4);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitLocalVariable("type", Enhancer.DESCRIPTOR_CLASS, null, l0, l1, 1);
    mv.visitLocalVariable("session", Enhancer.DESCRIPTOR_SESSION, null, l0, l1, 2);
    mv.visitLocalVariable("id", Enhancer.DESCRIPTOR_OBJECT, null, l0, l1, 3);
    mv.visitLocalVariable("initialized", Enhancer.DESCRIPTOR_BOOLEAN, null, l0, l1, 4);
    mv.visitMaxs(0, 0);

    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodCheck(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PRIVATE, Enhancer.METHOD_ENHANCED_CHECK,
            Enhancer.makeDescription(Void.TYPE), null, null);
    mv.visitCode();//w  w w .ja  va2s.c  om

    final Label lCheckInternal = new Label();
    final Label lCheckInitialized = new Label();
    final Label lReturn = new Label();
    final Label lFind = new Label();
    final Label lInitialized = new Label();
    final Label lChanged = new Label();
    final Label lOut = new Label();

    // if (!this.__enhanced__$$__internal) { return }
    mv.visitLabel(lCheckInternal);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INTERNAL,
            Enhancer.DESCRIPTOR_BOOLEAN);
    mv.visitJumpInsn(Opcodes.IFEQ, lCheckInitialized);
    mv.visitInsn(Opcodes.RETURN);

    // if (!this.__enhanced__$$__initialized) {
    mv.visitLabel(lCheckInitialized);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);
    mv.visitJumpInsn(Opcodes.IFNE, lChanged);

    //     if (this.__enhanced_$$__session == null)
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);
    mv.visitJumpInsn(Opcodes.IFNONNULL, lFind);

    //         throw new PersistenceException("No session to initialize the instance");
    mv.visitTypeInsn(Opcodes.NEW, Enhancer.INTERNAL_PERSISTENCE_EXCEPTION);
    mv.visitInsn(Opcodes.DUP);
    mv.visitLdcInsn("No session to initialize the instance");
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Enhancer.INTERNAL_PERSISTENCE_EXCEPTION,
            Enhancer.CONSTRUCTOR_INIT, Enhancer.makeDescription(Void.TYPE, String.class));
    mv.visitInsn(Opcodes.ATHROW);

    //       this.__enhanced_$$__session.getEntityManager().find(this.__enhanced_$$__type, this.__enhanced__$$__id);
    mv.visitLabel(lFind);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_SESSION, Enhancer.METHOD_GET_ENTITY_MANAGER,
            Enhancer.makeDescription(EntityManagerImpl.class));
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_TYPE,
            Enhancer.DESCRIPTOR_CLASS);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_ID,
            Enhancer.DESCRIPTOR_OBJECT);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_ENTITY_MANAGER, Enhancer.METHOD_FIND,
            Enhancer.makeDescription(Object.class, Class.class, Object.class));
    mv.visitInsn(Opcodes.POP);

    //   this.__enhanced__$$__initialized = true;
    mv.visitLabel(lInitialized);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ICONST_1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);

    // if (this.__enhanced_$$__session != null)
    mv.visitLabel(lChanged);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);
    mv.visitJumpInsn(Opcodes.IFNULL, lReturn);

    //     this.__enhanced__$$__managedInstance.changed();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_MANAGED_INSTANCE,
            Enhancer.DESCRIPTOR_MANAGED_INSTANCE);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_MANAGED_INSTANCE, Enhancer.METHOD_CHANGED,
            Enhancer.makeDescription(Void.TYPE));

    // return;
    mv.visitLabel(lReturn);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitInsn(Opcodes.RETURN);

    mv.visitLabel(lOut);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, lCheckInternal, lOut, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodSetInitialized(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.METHOD_ENHANCED_SET_INITIALIZED,
            Enhancer.makeDescription(Void.TYPE), null, null);
    mv.visitCode();//ww  w. ja va 2  s. com

    final Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ICONST_1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodSetInternal(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.METHOD_ENHANCED_SET_INTERNAL,
            Enhancer.makeDescription(Void.TYPE, Boolean.TYPE), null, null);
    mv.visitCode();//from  ww  w.  j av  a  2 s. c om

    final Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ILOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INTERNAL,
            Enhancer.DESCRIPTOR_BOOLEAN);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitLocalVariable("internal", Enhancer.DESCRIPTOR_BOOLEAN, null, l0, l1, 1);
    mv.visitMaxs(0, 0);
    mv.visitEnd();

    //      final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "__enhanced__$$__setInternalCall", "(Z)V", null, null);
    //      mv.visitCode();
    //      final Label l0 = new Label();
    //      mv.visitLabel(l0);
    //      mv.visitLineNumber(81, l0);
    //      mv.visitVarInsn(Opcodes.ALOAD, 0);
    //      mv.visitVarInsn(Opcodes.ILOAD, 1);
    //      mv.visitFieldInsn(Opcodes.PUTFIELD, descEnhancer, Enhancer.FIELD_ENHANCED_INTERNAL, Enhancer.DESCRIPTOR_BOOLEAN);
    //      final Label l1 = new Label();
    //      mv.visitLabel(l1);
    //      mv.visitLineNumber(82, l1);
    //      mv.visitInsn(Opcodes.RETURN);
    //      final Label l2 = new Label();
    //      mv.visitLabel(l2);
    //      mv.visitLocalVariable("this", descEnhancer, null, l0, l2, 0);
    //      mv.visitLocalVariable("internal", "Z", null, l0, l2, 1);
    //      mv.visitMaxs(2, 2);
    //      mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodSetManagedInstance(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.METHOD_ENHANCED_SET_MANAGED_INSTANCE,
            Enhancer.makeDescription(Void.TYPE, ManagedInstance.class), null, null);
    mv.visitCode();/* w w  w. ja v  a  2s  . c o m*/

    final Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_MANAGED_INSTANCE,
            Enhancer.DESCRIPTOR_MANAGED_INSTANCE);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitLocalVariable("instance", Enhancer.DESCRIPTOR_MANAGED_INSTANCE, null, l0, l1, 1);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}