public MethodInfo ResolveFunction(string name, Type[] parameterTypes)
{
MethodInfo bestMethod = null;
int bestSimilarity = int.MaxValue;
foreach (MethodInfo methodInfo in type.GetMethods())
{
if (!methodInfo.IsStatic)
{
continue;
}
if (methodInfo.Name.Equals(name))
{
ParameterInfo[] methodParameters = methodInfo.GetParameters();
if (parameterTypes.Length != methodParameters.Length)
{
continue;
}
int similarity = 0;
bool matched = true;
for (int i = 0; i < parameterTypes.Length; ++i)
{
if (parameterTypes[i] == null)
{
continue;
}
Type methodParameterType = methodParameters[i].ParameterType;
if (!parameterTypes[i].Equals(methodParameterType))
{
matched = false;
}
similarity += TypeCoercer.GetTypeSimilarity(methodParameterType, parameterTypes[i]);
}
if (matched)
{
return(methodInfo);
}
else if (similarity < bestSimilarity)
{
bestMethod = methodInfo;
}
}
}
return(bestMethod);
}
private OperatorInfo FindOperator(Type type, string operatorName, object operand)
{
OperatorInfo bestMethod = null;
int bestSimilarity = int.MaxValue;
foreach (MethodInfo methodInfo in type.GetMethods())
{
if (!methodInfo.IsStatic)
{
continue;
}
else if (!methodInfo.Name.Equals(operatorName))
{
continue;
}
ParameterInfo[] methodParameters = methodInfo.GetParameters();
if (methodParameters.Length != 2)
{
continue;
}
Type operandType = methodParameters[1].ParameterType;
if (operand == null || operandType.Equals(operand.GetType()))
{
return(new OperatorInfo(methodInfo, operandType));
}
int similarity = TypeCoercer.GetTypeSimilarity(operandType, operand.GetType());
if (similarity < bestSimilarity)
{
bestMethod = new OperatorInfo(methodInfo, operandType);
}
}
return(bestMethod);
}
