2.1/dev/core/src/com/google/gwt/dev/asm/util/TraceAnnotationVisitor.java - gwt - Git at Google

 /***
  * 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 <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('}');
         }

         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(", ");
         }
     }
 }
	/***
	* 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 <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('}');
	}

	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(", ");
	}
	}
	}