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| author | Luke Pulverenti <luke.pulverenti@gmail.com> | 2016-11-11 14:55:12 -0500 |
|---|---|---|
| committer | Luke Pulverenti <luke.pulverenti@gmail.com> | 2016-11-11 14:55:12 -0500 |
| commit | 406e6cb8132c1b8ade2872d44d7183267dd51ca8 (patch) | |
| tree | f9088ce1219351cee1976ba9fa57ed6341eeed9a /ServiceStack/ReflectionExtensions.cs | |
| parent | f8b8de13b752c49360bbe10502cc067be89937ae (diff) | |
update portable projects
Diffstat (limited to 'ServiceStack/ReflectionExtensions.cs')
| -rw-r--r-- | ServiceStack/ReflectionExtensions.cs | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/ServiceStack/ReflectionExtensions.cs b/ServiceStack/ReflectionExtensions.cs new file mode 100644 index 000000000..bbabd0dd7 --- /dev/null +++ b/ServiceStack/ReflectionExtensions.cs @@ -0,0 +1,270 @@ +using System; +using System.Collections.Generic; +using System.IO; +using System.Linq; +using System.Reflection; +using System.Runtime.Serialization; +using System.Text; +using System.Threading.Tasks; + +namespace ServiceStack +{ + public static class ReflectionExtensions + { + public static bool IsInstanceOf(this Type type, Type thisOrBaseType) + { + while (type != null) + { + if (type == thisOrBaseType) + return true; + + type = type.BaseType(); + } + return false; + } + + public static Type FirstGenericType(this Type type) + { + while (type != null) + { + if (type.IsGeneric()) + return type; + + type = type.BaseType(); + } + return null; + } + + public static Type GetTypeWithGenericTypeDefinitionOf(this Type type, Type genericTypeDefinition) + { + foreach (var t in type.GetTypeInterfaces()) + { + if (t.IsGeneric() && t.GetGenericTypeDefinition() == genericTypeDefinition) + { + return t; + } + } + + var genericType = type.FirstGenericType(); + if (genericType != null && genericType.GetGenericTypeDefinition() == genericTypeDefinition) + { + return genericType; + } + + return null; + } + + public static PropertyInfo[] GetAllProperties(this Type type) + { + if (type.IsInterface()) + { + var propertyInfos = new List<PropertyInfo>(); + + var considered = new List<Type>(); + var queue = new Queue<Type>(); + considered.Add(type); + queue.Enqueue(type); + + while (queue.Count > 0) + { + var subType = queue.Dequeue(); + foreach (var subInterface in subType.GetTypeInterfaces()) + { + if (considered.Contains(subInterface)) continue; + + considered.Add(subInterface); + queue.Enqueue(subInterface); + } + + var typeProperties = subType.GetTypesProperties(); + + var newPropertyInfos = typeProperties + .Where(x => !propertyInfos.Contains(x)); + + propertyInfos.InsertRange(0, newPropertyInfos); + } + + return propertyInfos.ToArray(); + } + + return type.GetTypesProperties() + .Where(t => t.GetIndexParameters().Length == 0) // ignore indexed properties + .ToArray(); + } + + public static PropertyInfo[] GetPublicProperties(this Type type) + { + if (type.IsInterface()) + { + var propertyInfos = new List<PropertyInfo>(); + + var considered = new List<Type>(); + var queue = new Queue<Type>(); + considered.Add(type); + queue.Enqueue(type); + + while (queue.Count > 0) + { + var subType = queue.Dequeue(); + foreach (var subInterface in subType.GetTypeInterfaces()) + { + if (considered.Contains(subInterface)) continue; + + considered.Add(subInterface); + queue.Enqueue(subInterface); + } + + var typeProperties = subType.GetTypesPublicProperties(); + + var newPropertyInfos = typeProperties + .Where(x => !propertyInfos.Contains(x)); + + propertyInfos.InsertRange(0, newPropertyInfos); + } + + return propertyInfos.ToArray(); + } + + return type.GetTypesPublicProperties() + .Where(t => t.GetIndexParameters().Length == 0) // ignore indexed properties + .ToArray(); + } + + public const string DataMember = "DataMemberAttribute"; + + internal static string[] IgnoreAttributesNamed = new[] { + "IgnoreDataMemberAttribute", + "JsonIgnoreAttribute" + }; + + public static PropertyInfo[] GetSerializableProperties(this Type type) + { + var properties = type.IsDto() + ? type.GetAllProperties() + : type.GetPublicProperties(); + return properties.OnlySerializableProperties(type); + } + + + private static List<Type> _excludeTypes = new List<Type> { typeof(Stream) }; + + public static PropertyInfo[] OnlySerializableProperties(this PropertyInfo[] properties, Type type = null) + { + var isDto = type.IsDto(); + var readableProperties = properties.Where(x => x.PropertyGetMethod(nonPublic: isDto) != null); + + if (isDto) + { + return readableProperties.Where(attr => + attr.HasAttribute<DataMemberAttribute>()).ToArray(); + } + + // else return those properties that are not decorated with IgnoreDataMember + return readableProperties + .Where(prop => prop.AllAttributes() + .All(attr => + { + var name = attr.GetType().Name; + return !IgnoreAttributesNamed.Contains(name); + })) + .Where(prop => !_excludeTypes.Contains(prop.PropertyType)) + .ToArray(); + } + } + + public static class PlatformExtensions //Because WinRT is a POS + { + public static bool IsInterface(this Type type) + { + return type.GetTypeInfo().IsInterface; + } + + public static bool IsGeneric(this Type type) + { + return type.GetTypeInfo().IsGenericType; + } + + public static Type BaseType(this Type type) + { + return type.GetTypeInfo().BaseType; + } + + public static Type[] GetTypeInterfaces(this Type type) + { + return type.GetTypeInfo().ImplementedInterfaces.ToArray(); + } + + internal static PropertyInfo[] GetTypesPublicProperties(this Type subType) + { + var pis = new List<PropertyInfo>(); + foreach (var pi in subType.GetRuntimeProperties()) + { + var mi = pi.GetMethod ?? pi.SetMethod; + if (mi != null && mi.IsStatic) continue; + pis.Add(pi); + } + return pis.ToArray(); + } + + internal static PropertyInfo[] GetTypesProperties(this Type subType) + { + var pis = new List<PropertyInfo>(); + foreach (var pi in subType.GetRuntimeProperties()) + { + var mi = pi.GetMethod ?? pi.SetMethod; + if (mi != null && mi.IsStatic) continue; + pis.Add(pi); + } + return pis.ToArray(); + } + + public static bool HasAttribute<T>(this Type type) + { + return type.AllAttributes().Any(x => x.GetType() == typeof(T)); + } + + public static bool HasAttribute<T>(this PropertyInfo pi) + { + return pi.AllAttributes().Any(x => x.GetType() == typeof(T)); + } + + public static bool IsDto(this Type type) + { + if (type == null) + return false; + + return type.HasAttribute<DataContractAttribute>(); + } + + public static MethodInfo PropertyGetMethod(this PropertyInfo pi, bool nonPublic = false) + { + return pi.GetMethod; + } + + public static object[] AllAttributes(this PropertyInfo propertyInfo) + { + return propertyInfo.GetCustomAttributes(true).ToArray(); + } + + public static object[] AllAttributes(this PropertyInfo propertyInfo, Type attrType) + { + return propertyInfo.GetCustomAttributes(true).Where(x => attrType.IsInstanceOf(x.GetType())).ToArray(); + } + + public static object[] AllAttributes(this Type type) + { + return type.GetTypeInfo().GetCustomAttributes(true).ToArray(); + } + + public static TAttr[] AllAttributes<TAttr>(this PropertyInfo pi) + { + return pi.AllAttributes(typeof(TAttr)).Cast<TAttr>().ToArray(); + } + + public static TAttr[] AllAttributes<TAttr>(this Type type) + where TAttr : Attribute + { + return type.GetTypeInfo().GetCustomAttributes<TAttr>(true).ToArray(); + } + } +} |
