private MethodInfo GetMethod(string name, Routine routine, bool[] hasConnection, bool returnsTable)
{
MethodInfo[] methods = this.GetMethods(name);
int i = -1;
for (int j = 0; j < methods.Length; j++)
{
int num4;
int num3 = 0;
hasConnection[0] = false;
MethodInfo info = methods[j];
ParameterInfo[] parameters = info.GetParameters();
if ((parameters.Length != 0) && parameters[0].ParameterType.Equals(typeof(DbConnection)))
{
num3 = 1;
hasConnection[0] = true;
}
if ((parameters.Length - num3) != routine.ParameterTypes.Length)
{
continue;
}
if (returnsTable)
{
if (typeof(IEnumerable).IsAssignableFrom(info.ReturnType))
{
goto Label_00AB;
}
continue;
}
SqlType parameterSqlType = Types.GetParameterSqlType(methods[j].ReturnType);
if ((parameterSqlType == null) || (parameterSqlType.TypeCode != routine.ReturnType.TypeCode))
{
continue;
}
Label_00AB:
num4 = 0;
while (num4 < routine.ParameterTypes.Length)
{
bool flag = false;
ParameterInfo info2 = parameters[num4 + num3];
Type parameterType = info2.ParameterType;
if (parameterType.IsArray && !typeof(byte[]).Equals(parameterType))
{
parameterType = parameterType.GetElementType();
if (parameterType.IsPrimitive)
{
info = null;
break;
}
flag = true;
}
SqlType type3 = Types.GetParameterSqlType(parameterType);
if (type3 == null)
{
info = null;
break;
}
ColumnSchema parameter = routine.GetParameter(num4);
if (parameter.GetParameterMode() == 1)
{
if (!info2.IsOut && !parameterType.IsByRef)
{
goto Label_0183;
}
info = null;
break;
}
if (parameter.GetParameterMode() == 4)
{
if (info2.IsOut && parameterType.IsByRef)
{
goto Label_0183;
}
info = null;
break;
}
if ((parameter.GetParameterMode() == 2) && !parameterType.IsByRef)
{
info = null;
break;
}
Label_0183:
parameter.SetNullable(!parameters[j].ParameterType.IsPrimitive);
bool flag2 = routine.ParameterTypes[num4].TypeComparisonGroup == type3.TypeComparisonGroup;
if (flag2 && routine.ParameterTypes[num4].IsNumberType())
{
flag2 = routine.ParameterTypes[num4].TypeCode == type3.TypeCode;
}
if (flag && (routine.GetParameter(num4).ParameterMode == 1))
{
flag2 = false;
}
if (!flag2)
{
info = null;
if ((num4 + num3) > i)
{
i = num4 + num3;
}
break;
}
num4++;
}
if (info != null)
{
for (int k = 0; k < routine.ParameterTypes.Length; k++)
{
routine.GetParameter(k).SetNullable(!parameters[k + num3].ParameterType.IsPrimitive);
}
return(info);
}
}
if (i >= 0)
{
ColumnSchema parameter = routine.GetParameter(i);
throw Error.GetError(0x1785, parameter.GetNameString());
}
return(null);
}
