Hi All,
problem with instrucion list seperation.
I am trying to instrument my constructor as mentioned in
http://www.mail-archive.com/[email protected]/msg00475.html
could you please let me know, where i am going wrong...
instrMethod() {
InstructionList iList = mgen.getInstructionList ();
// I am getting my instruction list
/* if init, I want to seperate this list into two instruction
lists, one containing
until super calls (let us say super list)and other containing
the iList,without the instructions till super calls
*/
if ( mgen.getName().equals ( "<init>" ) ){
superList = getIListSuper(iList);
}
// inserting try finally around the iList
insertTryFinally (iList)
if(superList != null){
iList.insert ( iList.getStart (), superList );
}
return mgen.getMethod ();
}
public InstructionList getIListSuper(InstructionList iList){
int invkSpec = 0;
InstructionHandle seperator = null;
InstructionList superList = iList.copy(); // deep copy
for ( Iterator i = superList.iterator (); i.hasNext (); ) {
seperator = ( InstructionHandle ) i.next ();
if(seperator.getInstruction() instanceof NEW )
invkSpec++;
if(seperator.getInstruction() instanceof INVOKESPECIAL )
invkSpec--;
if(invkSpec < 0 )
break;
}
if(invkSpec < 0) {
try {
superList.delete(seperator.getNext(),iList.getEnd()); // i
collect here the instruction list till the seperator
iList.delete(iList.getStart(), seperator);
// the iList that should be instrumented. // throwing target lost
exception
} catch ( TargetLostException e ) {
e.printStackTrace();
}
return superList;
}
return null;
}
The problem could be said as seperating an isntruction list into
two instruction lists based on InstructionHandle
i.e, based on seperator (InstructionHandle), I want to divide
the incoming instructionList into two parts (one list till super call
and other staring
After super() until end)
Please help me in this regard.
Thank you
Reddy
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