/** Start the method's visit. */
public void start() {
if (!mg.isAbstract() && !mg.isNative()) {
for (InstructionHandle ih = mg.getInstructionList().getStart();
ih != null;
ih = ih.getNext()) {
Instruction i = ih.getInstruction();
if (!visitInstruction(i)) i.accept(this);
}
updateExceptionHandlers();
}
}
/** Visit a single instruction. */
private boolean visitInstruction(Instruction i) {
short opcode = i.getOpcode();
return ((InstructionConstants.INSTRUCTIONS[opcode] != null)
&& !(i instanceof ConstantPushInstruction)
&& !(i instanceof ReturnInstruction));
}