/**
* Finds the argument named <code>strArgName</code> in the specific intrinsic argument list and
* returns its number.
*
* @param rgArgs The array of arguments
* @param strArgName The generic name of the argument (defined in {@link Globals}) for which to
* look
* @return The number of the argument (i.e., the index within the <code>rgArgs</code> array), or
* {@link InstructionListTranslator#UNDEFINED} if the argument couldn't be found
*/
private static int getArgNum(Argument[] rgArgs, String strArgName) {
Argument arg = null;
if (Globals.ARGNAME_LHS.equals(strArgName)) arg = Arguments.getLHS(rgArgs);
else if (Globals.ARGNAME_RHS.equals(strArgName)) arg = Arguments.getRHS(rgArgs);
else arg = Arguments.getNamedArgument(rgArgs, strArgName);
return arg == null ? UNDEFINED : arg.getNumber();
}
/**
* Finds the index of the argument in <code>rgArgs</code> which is the output argument.
*
* @param rgArgs The array of arguments to search
* @return The index of the argument in <code>rgArgs</code> which is the output argument
*/
private static int getOutputArgumentIndex(Argument[] rgArgs) {
Argument argOut = Arguments.getOutput(rgArgs);
return argOut == null ? rgArgs.length - 1 : argOut.getNumber();
}