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authorLuke Pulverenti <luke.pulverenti@gmail.com>2016-11-11 14:55:12 -0500
committerLuke Pulverenti <luke.pulverenti@gmail.com>2016-11-11 14:55:12 -0500
commit406e6cb8132c1b8ade2872d44d7183267dd51ca8 (patch)
treef9088ce1219351cee1976ba9fa57ed6341eeed9a /ServiceStack/ReflectionExtensions.cs
parentf8b8de13b752c49360bbe10502cc067be89937ae (diff)
update portable projects
Diffstat (limited to 'ServiceStack/ReflectionExtensions.cs')
-rw-r--r--ServiceStack/ReflectionExtensions.cs270
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();
+ }
+ }
+}