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      1 /***
      2  * ASM: a very small and fast Java bytecode manipulation framework
      3  * Copyright (c) 2000-2005 INRIA, France Telecom
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. Neither the name of the copyright holders nor the names of its
     15  *    contributors may be used to endorse or promote products derived from
     16  *    this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     28  * THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 package org.objectweb.asm.util;
     31 
     32 import org.objectweb.asm.AnnotationVisitor;
     33 import org.objectweb.asm.Attribute;
     34 import org.objectweb.asm.TypeAnnotationVisitor;
     35 import org.objectweb.asm.FieldVisitor;
     36 
     37 /**
     38  * A {@link FieldVisitor} that checks that its methods are properly used.
     39  */
     40 public class CheckFieldAdapter implements FieldVisitor {
     41 
     42     private FieldVisitor fv;
     43 
     44     private boolean end;
     45 
     46     public CheckFieldAdapter(final FieldVisitor fv) {
     47         this.fv = fv;
     48     }
     49 
     50     public AnnotationVisitor visitAnnotation(final String desc, boolean visible)
     51     {
     52         checkEnd();
     53         CheckMethodAdapter.checkDesc(desc, false);
     54         return new CheckAnnotationAdapter(fv.visitAnnotation(desc, visible));
     55     }
     56 
     57     // jaime
     58     public TypeAnnotationVisitor visitTypeAnnotation(String desc,
     59         boolean visible,
     60         boolean inCode)
     61     {
     62         throw new RuntimeException("Jaime did not implement yet");
     63     }
     64     //end jaime
     65 
     66     public void visitAttribute(final Attribute attr) {
     67         checkEnd();
     68         if (attr == null) {
     69             throw new IllegalArgumentException("Invalid attribute (must not be null)");
     70         }
     71         fv.visitAttribute(attr);
     72     }
     73 
     74     public void visitEnd() {
     75         checkEnd();
     76         end = true;
     77         fv.visitEnd();
     78     }
     79 
     80     private void checkEnd() {
     81         if (end) {
     82             throw new IllegalStateException("Cannot call a visit method after visitEnd has been called");
     83         }
     84     }
     85 }
     86