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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 com.google.gwt.dev.asm.util;
import com.google.gwt.dev.asm.AnnotationVisitor;
import com.google.gwt.dev.asm.Type;
/**
* An {@link AnnotationVisitor} that prints a disassembled view of the
* annotations it visits.
*
* @author Eric Bruneton
*/
public class TraceAnnotationVisitor extends TraceAbstractVisitor implements
AnnotationVisitor
{
/**
* The {@link AnnotationVisitor} to which this visitor delegates calls. May
* be null.
*/
protected AnnotationVisitor av;
private int valueNumber = 0;
/**
* Constructs a new {@link TraceAnnotationVisitor}.
*/
public TraceAnnotationVisitor() {
// ignore
}
// ------------------------------------------------------------------------
// Implementation of the AnnotationVisitor interface
// ------------------------------------------------------------------------
public void visit(final String name, final Object value) {
buf.setLength(0);
appendComa(valueNumber++);
if (name != null) {
buf.append(name).append('=');
}
if (value instanceof String) {
visitString((String) value);
} else if (value instanceof Type) {
visitType((Type) value);
} else if (value instanceof Byte) {
visitByte(((Byte) value).byteValue());
} else if (value instanceof Boolean) {
visitBoolean(((Boolean) value).booleanValue());
} else if (value instanceof Short) {
visitShort(((Short) value).shortValue());
} else if (value instanceof Character) {
visitChar(((Character) value).charValue());
} else if (value instanceof Integer) {
visitInt(((Integer) value).intValue());
} else if (value instanceof Float) {
visitFloat(((Float) value).floatValue());
} else if (value instanceof Long) {
visitLong(((Long) value).longValue());
} else if (value instanceof Double) {
visitDouble(((Double) value).doubleValue());
} else if (value.getClass().isArray()) {
buf.append('{');
if (value instanceof byte[]) {
byte[] v = (byte[]) value;
for (int i = 0; i < v.length; i++) {
appendComa(i);
visitByte(v[i]);
}
} else if (value instanceof boolean[]) {
boolean[] v = (boolean[]) value;
for (int i = 0; i < v.length; i++) {
appendComa(i);
visitBoolean(v[i]);
}
} else if (value instanceof short[]) {
short[] v = (short[]) value;
for (int i = 0; i < v.length; i++) {
appendComa(i);
visitShort(v[i]);
}
} else if (value instanceof char[]) {
char[] v = (char[]) value;
for (int i = 0; i < v.length; i++) {
appendComa(i);
visitChar(v[i]);
}
} else if (value instanceof int[]) {
int[] v = (int[]) value;
for (int i = 0; i < v.length; i++) {
appendComa(i);
visitInt(v[i]);
}
} else if (value instanceof long[]) {
long[] v = (long[]) value;
for (int i = 0; i < v.length; i++) {
appendComa(i);
visitLong(v[i]);
}
} else if (value instanceof float[]) {
float[] v = (float[]) value;
for (int i = 0; i < v.length; i++) {
appendComa(i);
visitFloat(v[i]);
}
} else if (value instanceof double[]) {
double[] v = (double[]) value;
for (int i = 0; i < v.length; i++) {
appendComa(i);
visitDouble(v[i]);
}
}
buf.append('}');
}
text.add(buf.toString());
if (av != null) {
av.visit(name, value);
}
}
private void visitInt(final int value) {
buf.append(value);
}
private void visitLong(final long value) {
buf.append(value).append('L');
}
private void visitFloat(final float value) {
buf.append(value).append('F');
}
private void visitDouble(final double value) {
buf.append(value).append('D');
}
private void visitChar(final char value) {
buf.append("(char)").append((int) value);
}
private void visitShort(final short value) {
buf.append("(short)").append(value);
}
private void visitByte(final byte value) {
buf.append("(byte)").append(value);
}
private void visitBoolean(final boolean value) {
buf.append(value);
}
private void visitString(final String value) {
appendString(buf, value);
}
private void visitType(final Type value) {
buf.append(value.getClassName()).append(".class");
}
public void visitEnum(
final String name,
final String desc,
final String value)
{
buf.setLength(0);
appendComa(valueNumber++);
if (name != null) {
buf.append(name).append('=');
}
appendDescriptor(FIELD_DESCRIPTOR, desc);
buf.append('.').append(value);
text.add(buf.toString());
if (av != null) {
av.visitEnum(name, desc, value);
}
}
public AnnotationVisitor visitAnnotation(
final String name,
final String desc)
{
buf.setLength(0);
appendComa(valueNumber++);
if (name != null) {
buf.append(name).append('=');
}
buf.append('@');
appendDescriptor(FIELD_DESCRIPTOR, desc);
buf.append('(');
text.add(buf.toString());
TraceAnnotationVisitor tav = createTraceAnnotationVisitor();
text.add(tav.getText());
text.add(")");
if (av != null) {
tav.av = av.visitAnnotation(name, desc);
}
return tav;
}
public AnnotationVisitor visitArray(final String name) {
buf.setLength(0);
appendComa(valueNumber++);
if (name != null) {
buf.append(name).append('=');
}
buf.append('{');
text.add(buf.toString());
TraceAnnotationVisitor tav = createTraceAnnotationVisitor();
text.add(tav.getText());
text.add("}");
if (av != null) {
tav.av = av.visitArray(name);
}
return tav;
}
public void visitEnd() {
if (av != null) {
av.visitEnd();
}
}
// ------------------------------------------------------------------------
// Utility methods
// ------------------------------------------------------------------------
private void appendComa(final int i) {
if (i != 0) {
buf.append(", ");
}
}
}
