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Prowlarr/NzbDrone.Common/Reflection/ReflectionExtensions.cs

60 lines
1.9 KiB

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
namespace NzbDrone.Common.Reflection
{
public static class ReflectionExtensions
{
public static List<PropertyInfo> GetSimpleProperties(this Type type)
{
var properties = type.GetProperties();
return properties.Where(c => c.PropertyType.IsSimpleType()).ToList();
}
public static List<Type> ImplementationsOf<T>(this Assembly assembly)
{
return assembly.GetTypes().Where(c => typeof(T).IsAssignableFrom(c)).ToList();
}
public static bool IsSimpleType(this Type type)
{
if (type.IsGenericType && (type.GetGenericTypeDefinition() == typeof(Nullable<>) || type.GetGenericTypeDefinition() == typeof(List<>)))
{
type = type.GetGenericArguments()[0];
}
return type.IsPrimitive
|| type.IsEnum
|| type == typeof(string)
|| type == typeof(DateTime)
|| type == typeof(Decimal);
}
public static bool IsReadable(this PropertyInfo propertyInfo)
{
return propertyInfo.CanRead && propertyInfo.GetGetMethod(false) != null;
}
public static bool IsWritable(this PropertyInfo propertyInfo)
{
return propertyInfo.CanWrite && propertyInfo.GetSetMethod(false) != null;
}
public static T GetAttribute<T>(this MemberInfo member, bool isRequired = true) where T : Attribute
{
var attribute = member.GetCustomAttributes(typeof(T), false).SingleOrDefault();
if (attribute == null && isRequired)
{
throw new ArgumentException(String.Format("The {0} attribute must be defined on member {1}", typeof(T).Name, member.Name));
}
return (T)attribute;
}
}
}