181 lines
6.1 KiB
Java
181 lines
6.1 KiB
Java
/***
|
|
* 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.objectweb.asm.util;
|
|
|
|
import org.objectweb.asm.AnnotationVisitor;
|
|
import org.objectweb.asm.Attribute;
|
|
import org.objectweb.asm.util.attrs.Traceable;
|
|
|
|
/**
|
|
* An abstract trace visitor.
|
|
*
|
|
* @author Eric Bruneton
|
|
*/
|
|
public abstract class TraceAbstractVisitor extends AbstractVisitor {
|
|
|
|
/**
|
|
* Constant used in {@link #appendDescriptor appendDescriptor} for internal
|
|
* type names in bytecode notation.
|
|
*/
|
|
public final static int INTERNAL_NAME = 0;
|
|
|
|
/**
|
|
* Constant used in {@link #appendDescriptor appendDescriptor} for field
|
|
* descriptors, formatted in bytecode notation
|
|
*/
|
|
public final static int FIELD_DESCRIPTOR = 1;
|
|
|
|
/**
|
|
* Constant used in {@link #appendDescriptor appendDescriptor} for field
|
|
* signatures, formatted in bytecode notation
|
|
*/
|
|
public final static int FIELD_SIGNATURE = 2;
|
|
|
|
/**
|
|
* Constant used in {@link #appendDescriptor appendDescriptor} for method
|
|
* descriptors, formatted in bytecode notation
|
|
*/
|
|
public final static int METHOD_DESCRIPTOR = 3;
|
|
|
|
/**
|
|
* Constant used in {@link #appendDescriptor appendDescriptor} for method
|
|
* signatures, formatted in bytecode notation
|
|
*/
|
|
public final static int METHOD_SIGNATURE = 4;
|
|
|
|
/**
|
|
* Constant used in {@link #appendDescriptor appendDescriptor} for class
|
|
* signatures, formatted in bytecode notation
|
|
*/
|
|
public final static int CLASS_SIGNATURE = 5;
|
|
|
|
/**
|
|
* Constant used in {@link #appendDescriptor appendDescriptor} for field or
|
|
* method return value signatures, formatted in default Java notation
|
|
* (non-bytecode)
|
|
*/
|
|
public final static int TYPE_DECLARATION = 6;
|
|
|
|
/**
|
|
* Constant used in {@link #appendDescriptor appendDescriptor} for class
|
|
* signatures, formatted in default Java notation (non-bytecode)
|
|
*/
|
|
public final static int CLASS_DECLARATION = 7;
|
|
|
|
/**
|
|
* Constant used in {@link #appendDescriptor appendDescriptor} for method
|
|
* parameter signatures, formatted in default Java notation (non-bytecode)
|
|
*/
|
|
public final static int PARAMETERS_DECLARATION = 8;
|
|
|
|
/**
|
|
* Tab for class members.
|
|
*/
|
|
protected String tab = " ";
|
|
|
|
/**
|
|
* Prints a disassembled view of the given annotation.
|
|
*
|
|
* @param desc the class descriptor of the annotation class.
|
|
* @param visible <tt>true</tt> if the annotation is visible at runtime.
|
|
* @return a visitor to visit the annotation values.
|
|
*/
|
|
public AnnotationVisitor visitAnnotation(
|
|
final String desc,
|
|
final boolean visible)
|
|
{
|
|
buf.setLength(0);
|
|
buf.append(tab).append('@');
|
|
appendDescriptor(FIELD_DESCRIPTOR, desc);
|
|
buf.append('(');
|
|
text.add(buf.toString());
|
|
TraceAnnotationVisitor tav = createTraceAnnotationVisitor();
|
|
text.add(tav.getText());
|
|
text.add(visible ? ")\n" : ") // invisible\n");
|
|
return tav;
|
|
}
|
|
|
|
/**
|
|
* Prints a disassembled view of the given attribute.
|
|
*
|
|
* @param attr an attribute.
|
|
*/
|
|
public void visitAttribute(final Attribute attr) {
|
|
buf.setLength(0);
|
|
buf.append(tab).append("ATTRIBUTE ");
|
|
appendDescriptor(-1, attr.type);
|
|
|
|
if (attr instanceof Traceable) {
|
|
((Traceable) attr).trace(buf, null);
|
|
} else {
|
|
buf.append(" : ").append(attr.toString()).append("\n");
|
|
}
|
|
|
|
text.add(buf.toString());
|
|
}
|
|
|
|
/**
|
|
* Does nothing.
|
|
*/
|
|
public void visitEnd() {
|
|
// does nothing
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
// Utility methods
|
|
// ------------------------------------------------------------------------
|
|
|
|
protected TraceAnnotationVisitor createTraceAnnotationVisitor() {
|
|
return new TraceAnnotationVisitor();
|
|
}
|
|
|
|
/**
|
|
* Appends an internal name, a type descriptor or a type signature to
|
|
* {@link #buf buf}.
|
|
*
|
|
* @param type indicates if desc is an internal name, a field descriptor, a
|
|
* method descriptor, a class signature, ...
|
|
* @param desc an internal name, type descriptor, or type signature. May be
|
|
* <tt>null</tt>.
|
|
*/
|
|
protected void appendDescriptor(final int type, final String desc) {
|
|
if (type == CLASS_SIGNATURE || type == FIELD_SIGNATURE
|
|
|| type == METHOD_SIGNATURE)
|
|
{
|
|
if (desc != null) {
|
|
buf.append("// signature ").append(desc).append('\n');
|
|
}
|
|
} else {
|
|
buf.append(desc);
|
|
}
|
|
}
|
|
|
|
}
|