emptyvisitor.java

jboss规则引擎

/***
 * ASM: a very small and fast Java bytecode manipulation framework
 * Copyright (c) 2000-2005 INRIA, France Telecom
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.drools.asm.commons;

import org.drools.asm.AnnotationVisitor;
import org.drools.asm.Attribute;
import org.drools.asm.ClassVisitor;
import org.drools.asm.FieldVisitor;
import org.drools.asm.Label;
import org.drools.asm.MethodVisitor;

/**
 * An empty implementation of the ASM visitor interfaces.
 * 
 * @author Eric Bruneton
 */
public class EmptyVisitor
    implements
    ClassVisitor,
    FieldVisitor,
    MethodVisitor,
    AnnotationVisitor {

    public void visit(final int version,
                      final int access,
                      final String name,
                      final String signature,
                      final String superName,
                      final String[] interfaces) {
    }

    public void visitSource(final String source,
                            final String debug) {
    }

    public void visitOuterClass(final String owner,
                                final String name,
                                final String desc) {
    }

    public AnnotationVisitor visitAnnotation(final String desc,
                                             final boolean visible) {
        return this;
    }

    public void visitAttribute(final Attribute attr) {
    }

    public void visitInnerClass(final String name,
                                final String outerName,
                                final String innerName,
                                final int access) {
    }

    public FieldVisitor visitField(final int access,
                                   final String name,
                                   final String desc,
                                   final String signature,
                                   final Object value) {
        return this;
    }

    public MethodVisitor visitMethod(final int access,
                                     final String name,
                                     final String desc,
                                     final String signature,
                                     final String[] exceptions) {
        return this;
    }

    public void visitEnd() {
    }

    public AnnotationVisitor visitAnnotationDefault() {
        return this;
    }

    public AnnotationVisitor visitParameterAnnotation(final int parameter,
                                                      final String desc,
                                                      final boolean visible) {
        return this;
    }

    public void visitCode() {
    }

    public void visitInsn(final int opcode) {
    }

    public void visitIntInsn(final int opcode,
                             final int operand) {
    }

    public void visitVarInsn(final int opcode,
                             final int var) {
    }

    public void visitTypeInsn(final int opcode,
                              final String desc) {
    }

    public void visitFieldInsn(final int opcode,
                               final String owner,
                               final String name,
                               final String desc) {
    }

    public void visitMethodInsn(final int opcode,
                                final String owner,
                                final String name,
                                final String desc) {
    }

    public void visitJumpInsn(final int opcode,
                              final Label label) {
    }

    public void visitLabel(final Label label) {
    }

    public void visitLdcInsn(final Object cst) {
    }

    public void visitIincInsn(final int var,
                              final int increment) {
    }

    public void visitTableSwitchInsn(final int min,
                                     final int max,
                                     final Label dflt,
                                     final Label labels[]) {
    }

    public void visitLookupSwitchInsn(final Label dflt,
                                      final int keys[],
                                      final Label labels[]) {
    }

    public void visitMultiANewArrayInsn(final String desc,
                                        final int dims) {
    }

    public void visitTryCatchBlock(final Label start,
                                   final Label end,
                                   final Label handler,
                                   final String type) {
    }

    public void visitLocalVariable(final String name,
                                   final String desc,
                                   final String signature,
                                   final Label start,
                                   final Label end,
                                   final int index) {
    }

    public void visitLineNumber(final int line,
                                final Label start) {
    }

    public void visitMaxs(final int maxStack,
                          final int maxLocals) {
    }

    public void visit(final String name,
                      final Object value) {
    }

    public void visitEnum(final String name,
                          final String desc,
                          final String value) {
    }

    public AnnotationVisitor visitAnnotation(final String name,
                                             final String desc) {
        return this;
    }

    public AnnotationVisitor visitArray(final String name) {
        return this;
    }
}