@Override
public int compare(FunctionDescProto o1, FunctionDescProto o2) {
List<DataType> types1 = o1.getSignature().getParameterTypesList();
List<DataType> types2 = o2.getSignature().getParameterTypesList();
int minLen = Math.min(types1.size(), types2.size());
for (int i = 0; i < minLen; i++) {
int cmpVal = types1.get(i).getType().getNumber() - types2.get(i).getType().getNumber();
if (cmpVal != 0) {
return cmpVal;
}
}
return types1.size() - types2.size();
}
/**
* Find the nearest matched function
*
* @param candidates Candidate Functions
* @return
*/
private FunctionDescProto findNearestMatchedFunction(List<FunctionDescProto> candidates) {
Collections.sort(candidates, new NearestParamsComparator());
return candidates.get(0);
}