org.aspectj.apache.bcel.generic.CodeExceptionGen Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of aspectjweaver Show documentation
Show all versions of aspectjweaver Show documentation
The AspectJ weaver introduces advices to java classes
package org.aspectj.apache.bcel.generic;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. 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. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache BCEL" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache",
* "Apache BCEL", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
*
*
* This relies on that the instruction list has already been dumped
* to byte code or or that the `setPositions' methods has been
* called for the instruction list.
*
* @param cp constant pool
*/
public CodeException getCodeException(ConstantPool cp) {
return new CodeException(start_pc.getPosition(),
end_pc.getPosition() + end_pc.getInstruction().getLength(),
handler_pc.getPosition(),
(catch_type == null)? 0 : cp.addClass(catch_type));
}
/* Set start of handler
* @param start_pc Start of handled region (inclusive)
*/
public void setStartPC(InstructionHandle start_pc) {
InstructionBranch.notifyTarget(this.start_pc, start_pc, this);
this.start_pc = start_pc;
}
/* Set end of handler
* @param end_pc End of handled region (inclusive)
*/
public void setEndPC(InstructionHandle end_pc) {
InstructionBranch.notifyTarget(this.end_pc, end_pc, this);
this.end_pc = end_pc;
}
/* Set handler code
* @param handler_pc Start of handler
*/
public void setHandlerPC(InstructionHandle handler_pc) {
InstructionBranch.notifyTarget(this.handler_pc, handler_pc, this);
this.handler_pc = handler_pc;
}
/**
* @param old_ih old target, either start or end
* @param new_ih new target
*/
public void updateTarget(InstructionHandle old_ih, InstructionHandle new_ih) {
boolean targeted = false;
if(start_pc == old_ih) {
targeted = true;
setStartPC(new_ih);
}
if(end_pc == old_ih) {
targeted = true;
setEndPC(new_ih);
}
if(handler_pc == old_ih) {
targeted = true;
setHandlerPC(new_ih);
}
if(!targeted)
throw new ClassGenException("Not targeting " + old_ih + ", but {" + start_pc + ", " +
end_pc + ", " + handler_pc + "}");
}
/**
* @return true, if ih is target of this handler
*/
public boolean containsTarget(InstructionHandle ih) {
return (start_pc == ih) || (end_pc == ih) || (handler_pc == ih);
}
/** Sets the type of the Exception to catch. Set 'null' for ANY. */
public void setCatchType(ObjectType catch_type) { this.catch_type = catch_type; }
/** Gets the type of the Exception to catch, 'null' for ANY. */
public ObjectType getCatchType() { return catch_type; }
/** @return start of handled region (inclusive)
*/
public InstructionHandle getStartPC() { return start_pc; }
/** @return end of handled region (inclusive)
*/
public InstructionHandle getEndPC() { return end_pc; }
/** @return start of handler
*/
public InstructionHandle getHandlerPC() { return handler_pc; }
public String toString() {
return "CodeExceptionGen(" + start_pc + ", " + end_pc + ", " + handler_pc + ")";
}
public Object clone() {
try {
return super.clone();
} catch(CloneNotSupportedException e) {
System.err.println(e);
return null;
}
}
}