/**
* @param verbose toggle output format
* @return String containing all instructions in this list.
*/
public String toString(boolean verbose) {
StringBuilder buf = new StringBuilder();
for (InstructionHandle ih = start; ih != null; ih = ih.next) {
buf.append(ih.toString(verbose)).append("\n");
}
return buf.toString();
}
/**
* Remove from instruction `prev' to instruction `next' both contained in this list. Throws
* TargetLostException when one of the removed instruction handles is still being targeted.
*
* @param prev where to start deleting (predecessor, exclusive)
* @param next where to end deleting (successor, exclusive)
*/
private void remove(InstructionHandle prev, InstructionHandle next) throws TargetLostException {
InstructionHandle first, last; // First and last deleted instruction
if ((prev == null) && (next == null)) {
first = start;
last = end;
start = end = null;
} else {
if (prev == null) { // At start of list
first = start;
start = next;
} else {
first = prev.next;
prev.next = next;
}
if (next == null) { // At end of list
last = end;
end = prev;
} else {
last = next.prev;
next.prev = prev;
}
}
first.prev = null; // Completely separated from rest of list
last.next = null;
List<InstructionHandle> target_vec = new ArrayList<InstructionHandle>();
for (InstructionHandle ih = first; ih != null; ih = ih.next) {
ih.getInstruction().dispose(); // e.g. BranchInstructions release their targets
}
StringBuilder buf = new StringBuilder("{ ");
for (InstructionHandle ih = first; ih != null; ih = next) {
next = ih.next;
length--;
if (ih.hasTargeters()) { // Still got targeters?
target_vec.add(ih);
buf.append(ih.toString(true) + " ");
ih.next = ih.prev = null;
} else {
ih.dispose();
}
}
buf.append("}");
if (!target_vec.isEmpty()) {
InstructionHandle[] targeted = new InstructionHandle[target_vec.size()];
target_vec.toArray(targeted);
throw new TargetLostException(targeted, buf.toString());
}
}
