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The AspectJ weaver applies aspects to Java classes. It can be used as a Java agent in order to apply load-time
weaving (LTW) during class-loading and also contains the AspectJ runtime classes.
/* *******************************************************************
* Copyright (c) 2004 IBM Corporation
*
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v 2.0
* which accompanies this distribution and is available at
* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
*
* Contributors:
* Andy Clement initial implementation
* Heavily based on LocalVariableTable
* ******************************************************************/
package org.aspectj.apache.bcel.classfile;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import org.aspectj.apache.bcel.Constants;
// The new table is used when generic types are about...
//LocalVariableTable_attribute {
// u2 attribute_name_index;
// u4 attribute_length;
// u2 local_variable_table_length;
// { u2 start_pc;
// u2 length;
// u2 name_index;
// u2 descriptor_index;
// u2 index;
// } local_variable_table[local_variable_table_length];
// }
//LocalVariableTypeTable_attribute {
// u2 attribute_name_index;
// u4 attribute_length;
// u2 local_variable_type_table_length;
// {
// u2 start_pc;
// u2 length;
// u2 name_index;
// u2 signature_index;
// u2 index;
// } local_variable_type_table[local_variable_type_table_length];
// }
// J5TODO: Needs some testing !
public class LocalVariableTypeTable extends Attribute {
private int local_variable_type_table_length; // Table of local
private LocalVariable[] local_variable_type_table; // variables
public LocalVariableTypeTable(LocalVariableTypeTable c) {
this(c.getNameIndex(), c.getLength(), c.getLocalVariableTypeTable(), c.getConstantPool());
}
public LocalVariableTypeTable(int name_index, int length, LocalVariable[] local_variable_table, ConstantPool constant_pool) {
super(Constants.ATTR_LOCAL_VARIABLE_TYPE_TABLE, name_index, length, constant_pool);
setLocalVariableTable(local_variable_table);
}
LocalVariableTypeTable(int nameIdx, int len, DataInputStream dis, ConstantPool cpool) throws IOException {
this(nameIdx, len, (LocalVariable[]) null, cpool);
local_variable_type_table_length = (dis.readUnsignedShort());
local_variable_type_table = new LocalVariable[local_variable_type_table_length];
for (int i = 0; i < local_variable_type_table_length; i++)
local_variable_type_table[i] = new LocalVariable(dis, cpool);
}
@Override
public void accept(ClassVisitor v) {
v.visitLocalVariableTypeTable(this);
}
@Override
public final void dump(DataOutputStream file) throws IOException {
super.dump(file);
file.writeShort(local_variable_type_table_length);
for (int i = 0; i < local_variable_type_table_length; i++)
local_variable_type_table[i].dump(file);
}
public final LocalVariable[] getLocalVariableTypeTable() {
return local_variable_type_table;
}
public final LocalVariable getLocalVariable(int index) {
for (int i = 0; i < local_variable_type_table_length; i++)
if (local_variable_type_table[i].getIndex() == index)
return local_variable_type_table[i];
return null;
}
public final void setLocalVariableTable(LocalVariable[] local_variable_table) {
this.local_variable_type_table = local_variable_table;
local_variable_type_table_length = (local_variable_table == null) ? 0 : local_variable_table.length;
}
/**
* @return String representation.
*/
@Override
public final String toString() {
StringBuilder buf = new StringBuilder("");
for (int i = 0; i < local_variable_type_table_length; i++) {
buf.append(local_variable_type_table[i].toString());
if (i < local_variable_type_table_length - 1)
buf.append('\n');
}
return buf.toString();
}
// /**
// * @return deep copy of this attribute
// */
// public Attribute copy(ConstantPool constant_pool) {
// LocalVariableTypeTable c = (LocalVariableTypeTable)clone();
//
// c.local_variable_type_table = new LocalVariable[local_variable_type_table_length];
// for(int i=0; i < local_variable_type_table_length; i++)
// c.local_variable_type_table[i] = local_variable_type_table[i].copy();
//
// c.cpool = constant_pool;
// return c;
// }
public final int getTableLength() {
return local_variable_type_table_length;
}
}