com.google.gwt.dev.javac.asmbridge.EmptyVisitor.java Source code

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Here is the source code for com.google.gwt.dev.javac.asmbridge.EmptyVisitor.java

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/*
 * Copyright 2013 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.gwt.dev.javac.asmbridge;

import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;

/**
 * This class is a replacement of the EmptyVisitor class in ASM 3.1, no longer provided in ASM 4.
 */
public class EmptyVisitor extends ClassVisitor {

    protected AnnotationVisitor av = new AnnotationVisitor(Opcodes.ASM6) {

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

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

    public EmptyVisitor() {
        super(Opcodes.ASM6);
    }

    protected MethodVisitor mv = new MethodVisitor(Opcodes.ASM6) {

        @Override
        public AnnotationVisitor visitAnnotationDefault() {
            return av;
        }

        @Override
        public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
            return av;
        }

        @Override
        public AnnotationVisitor visitParameterAnnotation(int parameter, String desc, boolean visible) {
            return av;
        }
    };

    protected FieldVisitor fv = new FieldVisitor(Opcodes.ASM6) {

        @Override
        public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
            return av;
        }
    };

    @Override
    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
        return av;
    }

    @Override
    public FieldVisitor visitField(int access, String name, String desc, String signature, Object value) {
        return fv;
    }

    @Override
    public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
        return mv;
    }
}