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/***
* ASM: a very small and fast Java bytecode manipulation framework
* Copyright (c) 2000-2007 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.mockito.asm.util;
import org.mockito.asm.AnnotationVisitor;
import org.mockito.asm.Attribute;
/**
* 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 static final int INTERNAL_NAME = 0;
/**
* Constant used in {@link #appendDescriptor appendDescriptor} for field
* descriptors, formatted in bytecode notation
*/
public static final int FIELD_DESCRIPTOR = 1;
/**
* Constant used in {@link #appendDescriptor appendDescriptor} for field
* signatures, formatted in bytecode notation
*/
public static final int FIELD_SIGNATURE = 2;
/**
* Constant used in {@link #appendDescriptor appendDescriptor} for method
* descriptors, formatted in bytecode notation
*/
public static final int METHOD_DESCRIPTOR = 3;
/**
* Constant used in {@link #appendDescriptor appendDescriptor} for method
* signatures, formatted in bytecode notation
*/
public static final int METHOD_SIGNATURE = 4;
/**
* Constant used in {@link #appendDescriptor appendDescriptor} for class
* signatures, formatted in bytecode notation
*/
public static final 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 static final int TYPE_DECLARATION = 6;
/**
* Constant used in {@link #appendDescriptor appendDescriptor} for class
* signatures, formatted in default Java notation (non-bytecode)
*/
public static final int CLASS_DECLARATION = 7;
/**
* Constant used in {@link #appendDescriptor appendDescriptor} for method
* parameter signatures, formatted in default Java notation (non-bytecode)
*/
public static final 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 true 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(" : unknown\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
* null.
*/
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);
}
}
}
