private void GetGenericType(Type param, Type type)
{
if (param.IsGenericParameter)
{
if (genericType == null)
{
genericType = type;
}
if (genericType != type)
{
if (TypeCheck.IsImplicitCast(genericType, type) != 0)
{
genericType = type;
}
}
}
else if (param.IsArray && param.GetElementType().IsGenericParameter)
{
if (genericType == null)
{
genericType = type.GetElementType();
}
if (genericType != type.GetElementType())
{
if (TypeCheck.IsImplicitCast(genericType, type.GetElementType()) != 0)
{
genericType = type.GetElementType();
}
}
}
else if (param.IsGenericType)
{
var paramNestList = param.GetGenericArguments();
Type[] typeNestList;
if (type.IsGenericType && param.GetGenericTypeDefinition() == type.GetGenericTypeDefinition())
{
typeNestList = type.GetGenericArguments();
}
else
{
typeNestList =
TypeCheck.GetGenericUpCastInfo(type, param).Value.upCastedType.GetGenericArguments();
}
for (int i = 0; i < typeNestList.Length; i++)
{
GetGenericType(paramNestList[i], typeNestList[i]);
}
}
}
static public MethodInfo Select(Type classType, string funcName, BindingFlags bindingFlags, Type[] types)
{
var typesLength = types.Length;
if (classType == null)
{
return(null);
}
var methodInfos =
classType.GetMethods(bindingFlags)
.Where(f => {
if (f.Name == funcName && f.GetParameters().Length == typesLength)
{
return(true);
}
return(false);
});
var tuples = methodInfos.Select(
m => {
var parameters = m.GetParameters();
Tuple tuple;
tuple.methodInfo = m;
tuple.paramsPrioritys =
parameters.
Zip(types, (param, type) =>
TypeCheck.GetParamsPriority(type, param.ParameterType));
return(tuple);
}).Where(tuple => !tuple.paramsPrioritys.Contains(null));
var tempTuple = new Tuple {
paramsPrioritys = null
};
int tempSum = 0;
foreach (var it in tuples)
{
if (tempTuple.paramsPrioritys == null)
{
tempTuple = it;
continue;
}
int sum = 0;
sum = it.paramsPrioritys.Zip(tempTuple.paramsPrioritys,
(paramsPriority, tParamsPriority) => paramsPriority.CompareTo(tParamsPriority))
.Sum();
if (sum > it.methodInfo.GetParameters().Length / 2)
{
tempTuple = it;
}
}
if (tempTuple.methodInfo == null)
{
return(null);
}
if (tempTuple.methodInfo.IsGenericMethod)
{
Type genericType = new SelectGenericParams().Select(tempTuple.methodInfo.GetParameters(), types);
if (genericType != null)
{
return(tempTuple.methodInfo.MakeGenericMethod(genericType));
}
return(null);
}
return(tempTuple.methodInfo);
}
