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jode/jode/jode/decompiler/LocalVariableTable.java

73 lines
2.4 KiB

/*
* LocalVariableTable (c) 1998 Jochen Hoenicke
*
* You may distribute under the terms of the GNU General Public License.
*
* IN NO EVENT SHALL JOCHEN HOENICKE BE LIABLE TO ANY PARTY FOR DIRECT,
* INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
* THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF JOCHEN HOENICKE
* HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* JOCHEN HOENICKE SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
* BASIS, AND JOCHEN HOENICKE HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
* SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* $Id$
*/
package jode;
import sun.tools.java.*;
import java.io.*;
public class LocalVariableTable {
LocalVariableRangeList[] locals;
boolean readfromclass;
public LocalVariableTable(int size) {
locals = new LocalVariableRangeList[size];
readfromclass = false;
}
public int getSize() {
return locals.length;
}
public boolean isReadFromClass() {
return readfromclass;
}
public void read(JodeEnvironment env, DataInputStream stream)
throws IOException
{
int count = stream.readUnsignedShort();
for (int i=0; i<count; i++) {
int start = stream.readUnsignedShort()-2; /*XXX*/
int length = stream.readUnsignedShort();
int name_i = stream.readUnsignedShort();
int desc_i = stream.readUnsignedShort();
int slot = stream.readUnsignedShort();
LocalVariableRangeList lv = locals[slot];
if (lv == null) {
lv = new LocalVariableRangeList(slot);
locals[slot] = lv;
}
lv.addLocal(start, length,
Identifier.lookup((String)
env.getConstantPool().
getValue(name_i)),
env.getConstantPool().getType(desc_i));
}
readfromclass = true;
}
public LocalVariableRangeList getLocal(int slot)
throws ArrayIndexOutOfBoundsException
{
LocalVariableRangeList lv = locals[slot];
if (lv == null)
lv = new LocalVariableRangeList(slot);
return lv;
}
}