// No return value for this function.
static void getFormals(SamTokenizer f) throws TokenizerException {
try {
// The only type for formals is int.
myCheck(f, "int");
String paramName = f.getWord();
// Check if the name already exists.
if (symTables.lastElement().containsKey(paramName))
throw new TokenizerException("Error: Duplicate declaration of " + paramName + ".");
params.add(paramName);
if (f.check(',')) {
getFormals(f);
}
return;
} catch (Exception e) {
System.out.println(e.getMessage());
throw new TokenizerException("Error: Invalid formals");
}
}
