Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/***
* 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 mockit.external.asm;
/**
* A non standard class, field, method or code attribute.
*
* @author Eric Bruneton
* @author Eugene Kuleshov
*/
public final class Attribute
{
/**
* The type of this attribute.
*/
public final String type;
/**
* The raw value of this attribute, used only for unknown attributes.
*/
byte[] value;
/**
* The next attribute in this attribute list. May be null.
*/
Attribute next;
/**
* Constructs a new empty attribute.
*
* @param type the type of the attribute.
*/
Attribute(String type) {
this.type = type;
}
/**
* Returns true if this type of attribute is a code attribute.
*/
public boolean isCodeAttribute() {
return false;
}
/**
* Returns the labels corresponding to this attribute.
*
* @return the labels corresponding to this attribute, or null if
* this attribute is not a code attribute that contains labels.
*/
Label[] getLabels() {
return null;
}
/**
* Reads a {@link #type type} attribute. This method must return a new
* Attribute object, of type {@link #type type}, corresponding to
* the len bytes starting at the given offset, in the given class reader.
*
* @param cr the class that contains the attribute to be read.
* @param off index of the first byte of the attribute's content in {@link
* ClassReader#b cr.b}. The 6 attribute header bytes, containing the
* type and the length of the attribute, are not taken into account
* here.
* @param len the length of the attribute's content.
*
* @return a new Attribute object corresponding to the given bytes.
*/
Attribute read(ClassReader cr, int off, int len)
{
Attribute attr = new Attribute(type);
attr.value = new byte[len];
System.arraycopy(cr.b, off, attr.value, 0, len);
return attr;
}
/**
* Returns the byte array form of this attribute.
*/
private ByteVector write()
{
ByteVector v = new ByteVector();
v.data = value;
v.length = value.length;
return v;
}
/**
* Returns the length of the attribute list that begins with this attribute.
*/
int getCount() {
int count = 0;
Attribute attr = this;
while (attr != null) {
count += 1;
attr = attr.next;
}
return count;
}
/**
* Returns the size of all the attributes in this attribute list.
*
* @param cw the class writer to be used to convert the attributes into byte
* arrays, with the {@link #write write} method.
*
* @return the size of all the attributes in this attribute list. This size
* includes the size of the attribute headers.
*/
int getSize(ClassWriter cw)
{
Attribute attr = this;
int size = 0;
while (attr != null) {
cw.newUTF8(attr.type);
size += attr.write().length + 6;
attr = attr.next;
}
return size;
}
/**
* Writes all the attributes of this attribute list in the given byte vector.
*
* @param cw the class writer to be used to convert the attributes into byte
* arrays, with the {@link #write write} method.
* @param out where the attributes must be written.
*/
void put(ClassWriter cw, ByteVector out)
{
Attribute attr = this;
while (attr != null) {
ByteVector b = attr.write();
out.putShort(cw.newUTF8(attr.type)).putInt(b.length);
out.putByteArray(b.data, 0, b.length);
attr = attr.next;
}
}
}
