コード例 #1
0
ファイル: ClassMap.cs プロジェクト: netcore-jroger/CsvHelper
        /// <summary>
        /// Auto maps the given map and checks for circular references as it goes.
        /// </summary>
        /// <param name="map">The map to auto map.</param>
        /// <param name="context">The context.</param>
        /// <param name="mapParents">The list of parents for the map.</param>
        /// <param name="indexStart">The index starting point.</param>
        protected virtual void AutoMapMembers(ClassMap map, CsvContext context, LinkedList <Type> mapParents, int indexStart = 0)
        {
            var type = map.GetGenericType();

            var flags = BindingFlags.Instance | BindingFlags.Public;

            if (context.Configuration.IncludePrivateMembers)
            {
                flags = flags | BindingFlags.NonPublic;
            }

            var members = new List <MemberInfo>();

            if ((context.Configuration.MemberTypes & MemberTypes.Properties) == MemberTypes.Properties)
            {
                // We need to go up the declaration tree and find the actual type the property
                // exists on and use that PropertyInfo instead. This is so we can get the private
                // set method for the property.
                var properties = new List <PropertyInfo>();
                foreach (var property in ReflectionHelper.GetUniqueProperties(type, flags))
                {
                    if (properties.Any(p => p.Name == property.Name))
                    {
                        // Multiple properties could have the same name if a child class property
                        // is hiding a parent class property by using `new`. It's possible that
                        // the order of the properties returned
                        continue;
                    }

                    properties.Add(ReflectionHelper.GetDeclaringProperty(type, property, flags));
                }

                members.AddRange(properties);
            }

            if ((context.Configuration.MemberTypes & MemberTypes.Fields) == MemberTypes.Fields)
            {
                var fields = new List <MemberInfo>();
                foreach (var field in type.GetFields(flags))
                {
                    if (!field.GetCustomAttributes(typeof(CompilerGeneratedAttribute), false).Any())
                    {
                        fields.Add(field);
                    }
                }

                members.AddRange(fields);
            }

            foreach (var member in members)
            {
                if (member.GetCustomAttribute <IgnoreAttribute>() != null)
                {
                    // Ignore this member including its tree if it's a reference.
                    continue;
                }

                var typeConverterType = context.TypeConverterCache.GetConverter(member).GetType();

                if (context.Configuration.HasHeaderRecord && enumerableConverters.Contains(typeConverterType))
                {
                    // Enumerable converters can't write the header properly, so skip it.
                    continue;
                }

                var memberTypeInfo     = member.MemberType().GetTypeInfo();
                var isDefaultConverter = typeConverterType == typeof(DefaultTypeConverter);
                if (isDefaultConverter)
                {
                    // If the type is not one covered by our type converters
                    // and it has a parameterless constructor, create a
                    // reference map for it.

                    if (context.Configuration.IgnoreReferences)
                    {
                        continue;
                    }

                    if (CheckForCircularReference(member.MemberType(), mapParents))
                    {
                        continue;
                    }

                    mapParents.AddLast(type);
                    var refMapType = typeof(DefaultClassMap <>).MakeGenericType(member.MemberType());
                    var refMap     = (ClassMap)ObjectResolver.Current.Resolve(refMapType);

                    if (memberTypeInfo.HasConstructor() && !memberTypeInfo.HasParameterlessConstructor() && !memberTypeInfo.IsUserDefinedStruct())
                    {
                        AutoMapConstructorParameters(refMap, context, mapParents, Math.Max(map.GetMaxIndex() + 1, indexStart));
                    }

                    // Need to use Max here for nested types.
                    AutoMapMembers(refMap, context, mapParents, Math.Max(map.GetMaxIndex() + 1, indexStart));
                    mapParents.Drop(mapParents.Find(type));

                    if (refMap.MemberMaps.Count > 0 || refMap.ReferenceMaps.Count > 0)
                    {
                        var referenceMap = new MemberReferenceMap(member, refMap);
                        if (context.Configuration.ReferenceHeaderPrefix != null)
                        {
                            referenceMap.Data.Prefix = context.Configuration.ReferenceHeaderPrefix(member.MemberType(), member.Name);
                        }

                        ApplyAttributes(referenceMap);

                        map.ReferenceMaps.Add(referenceMap);
                    }
                }
                else
                {
                    // Only add the member map if it can be converted later on.
                    // If the member will use the default converter, don't add it because
                    // we don't want the .ToString() value to be used when auto mapping.

                    // Use the top of the map tree. This will maps that have been auto mapped
                    // to later on get a reference to a map by doing map.Map( m => m.A.B.C.Id )
                    // and it will return the correct parent map type of A instead of C.
                    var classType = mapParents.First?.Value ?? map.ClassType;
                    var memberMap = MemberMap.CreateGeneric(classType, member);

                    // Use global values as the starting point.
                    memberMap.Data.TypeConverterOptions = TypeConverterOptions.Merge(new TypeConverterOptions(), context.TypeConverterOptionsCache.GetOptions(member.MemberType()), memberMap.Data.TypeConverterOptions);
                    memberMap.Data.Index = map.GetMaxIndex() + 1;

                    ApplyAttributes(memberMap);

                    map.MemberMaps.Add(memberMap);
                }
            }

            map.ReIndex(indexStart);
        }
コード例 #2
0
 public MemberMapBuilder(ClassMap <TClass> classMap, MemberMap <TClass, TMember> memberMap)
 {
     this.classMap  = classMap;
     this.memberMap = memberMap;
 }
コード例 #3
0
ファイル: ClassMap.cs プロジェクト: vuongthai91/CsvHelper
        /// <summary>
        /// Applies attribute configurations to the map.
        /// </summary>
        /// <param name="memberMap">The member map.</param>
        protected virtual void ApplyAttributes(MemberMap memberMap)
        {
            var member = memberMap.Data.Member;

            if (member.GetCustomAttribute(typeof(IndexAttribute)) is IndexAttribute indexAttribute)
            {
                memberMap.Data.Index      = indexAttribute.Index;
                memberMap.Data.IndexEnd   = indexAttribute.IndexEnd;
                memberMap.Data.IsIndexSet = true;
            }

            if (member.GetCustomAttribute(typeof(NameAttribute)) is NameAttribute nameAttribute)
            {
                memberMap.Data.Names.Clear();
                memberMap.Data.Names.AddRange(nameAttribute.Names);
                memberMap.Data.IsNameSet = true;
            }

            if (member.GetCustomAttribute(typeof(NameIndexAttribute)) is NameIndexAttribute nameIndexAttribute)
            {
                memberMap.Data.NameIndex = nameIndexAttribute.NameIndex;
            }

            if (member.GetCustomAttribute(typeof(IgnoreAttribute)) is IgnoreAttribute ignoreAttribute)
            {
                memberMap.Data.Ignore = true;
            }

            if (member.GetCustomAttribute(typeof(OptionalAttribute)) is OptionalAttribute optionalAttribute)
            {
                memberMap.Data.IsOptional = true;
            }

            if (member.GetCustomAttribute(typeof(DefaultAttribute)) is DefaultAttribute defaultAttribute)
            {
                memberMap.Data.Default      = defaultAttribute.Default;
                memberMap.Data.IsDefaultSet = true;
            }

            if (member.GetCustomAttribute(typeof(ConstantAttribute)) is ConstantAttribute constantAttribute)
            {
                memberMap.Data.Constant      = constantAttribute.Constant;
                memberMap.Data.IsConstantSet = true;
            }

            if (member.GetCustomAttribute(typeof(TypeConverterAttribute)) is TypeConverterAttribute typeConverterAttribute)
            {
                memberMap.Data.TypeConverter = typeConverterAttribute.TypeConverter;
            }

            if (member.GetCustomAttribute(typeof(CultureInfoAttribute)) is CultureInfoAttribute cultureInfoAttribute)
            {
                memberMap.Data.TypeConverterOptions.CultureInfo = cultureInfoAttribute.CultureInfo;
            }

            if (member.GetCustomAttribute(typeof(DateTimeStylesAttribute)) is DateTimeStylesAttribute dateTimeStylesAttribute)
            {
                memberMap.Data.TypeConverterOptions.DateTimeStyle = dateTimeStylesAttribute.DateTimeStyles;
            }

            if (member.GetCustomAttribute(typeof(NumberStylesAttribute)) is NumberStylesAttribute numberStylesAttribute)
            {
                memberMap.Data.TypeConverterOptions.NumberStyle = numberStylesAttribute.NumberStyles;
            }

            if (member.GetCustomAttribute(typeof(FormatAttribute)) is FormatAttribute formatAttribute)
            {
                memberMap.Data.TypeConverterOptions.Formats = formatAttribute.Formats;
            }

            if (member.GetCustomAttribute(typeof(BooleanTrueValuesAttribute)) is BooleanTrueValuesAttribute booleanTrueValuesAttribute)
            {
                memberMap.Data.TypeConverterOptions.BooleanTrueValues.Clear();
                memberMap.Data.TypeConverterOptions.BooleanTrueValues.AddRange(booleanTrueValuesAttribute.TrueValues);
            }

            if (member.GetCustomAttribute(typeof(BooleanFalseValuesAttribute)) is BooleanFalseValuesAttribute booleanFalseValuesAttribute)
            {
                memberMap.Data.TypeConverterOptions.BooleanFalseValues.Clear();
                memberMap.Data.TypeConverterOptions.BooleanFalseValues.AddRange(booleanFalseValuesAttribute.FalseValues);
            }

            if (member.GetCustomAttribute(typeof(NullValuesAttribute)) is NullValuesAttribute nullValuesAttribute)
            {
                memberMap.Data.TypeConverterOptions.NullValues.Clear();
                memberMap.Data.TypeConverterOptions.NullValues.AddRange(nullValuesAttribute.NullValues);
            }
        }
コード例 #4
0
 /// <summary>
 /// Creates a new instance using the given <see cref="MemberMap"/>.
 /// </summary>
 /// <param name="memberMap">The member map the options are being applied to.</param>
 public MapTypeConverterOption(MemberMap memberMap)
 {
     this.memberMap = memberMap;
 }