Subversion Repositories openrisc

/***

 * 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.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 <tt>null</tt>.

     */

    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('}');

        } else {

            buf.append(value);

        }

        text.add(buf.toString());

        if (av != null) {

            av.visit(name, value);

        }

    }

    private void visitInt(int value) {

        buf.append(value);

    }

    private void visitLong(long value) {

        buf.append(value).append('L');

    }

    private void visitFloat(float value) {

        buf.append(value).append('F');

    }

    private void visitDouble(double value) {

        buf.append(value).append('D');

    }

    private void visitChar(char value) {

        buf.append("(char)").append((int) value);

    }

    private void visitShort(short value) {

        buf.append("(short)").append(value);

    }

    private void visitByte(byte value) {

        buf.append("(byte)").append(value);

    }

    private void visitBoolean(boolean value) {

        buf.append(value);

    }

    private void visitString(String value) {

        appendString(buf, value);

    }

    private void visitType(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

    // ------------------------------------------------------------------------

    protected TraceAnnotationVisitor createTraceAnnotationVisitor() {

        return new TraceAnnotationVisitor();

    }

    private void appendComa(int i) {

        if (i != 0) {

            buf.append(", ");

        }

    }

}