mirror of
https://github.com/ICDSystems/ICD.Common.Utils.git
synced 2026-02-11 02:35:05 +00:00
refactor: Removing unused code, loosening attribute type constraints
This commit is contained in:
Chris Cameron
@@ -2,10 +2,7 @@
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using System.Collections.Generic;
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using System.Linq;
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using ICD.Common.Properties;
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using ICD.Common.Utils.Collections;
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using ICD.Common.Utils.Extensions;
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using ICD.Common.Utils.Services;
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using ICD.Common.Utils.Services.Logging;
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#if SIMPLSHARP
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using Crestron.SimplSharp.Reflection;
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#else
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@@ -20,139 +17,6 @@ namespace ICD.Common.Utils
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/// </summary>
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public static class AttributeUtils
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{
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// Avoid caching the same assembly multiple times.
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private static readonly IcdHashSet<Assembly> s_CachedAssemblies;
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private static readonly IcdHashSet<Type> s_CachedTypes;
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private static readonly Dictionary<Attribute, Type> s_AttributeToTypeCache;
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private static readonly Dictionary<Type, IcdHashSet<Attribute>> s_TypeToAttributesCache;
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private static ILoggerService Logger { get { return ServiceProvider.TryGetService<ILoggerService>(); } }
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/// <summary>
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/// Constructor.
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/// </summary>
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static AttributeUtils()
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{
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s_CachedAssemblies = new IcdHashSet<Assembly>();
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s_CachedTypes = new IcdHashSet<Type>();
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s_AttributeToTypeCache = new Dictionary<Attribute, Type>();
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s_TypeToAttributesCache = new Dictionary<Type, IcdHashSet<Attribute>>();
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}
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#region Caching
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/// <summary>
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/// Pre-emptively caches the given assembly for lookup.
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/// </summary>
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/// <param name="assembly"></param>
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public static bool CacheAssembly(Assembly assembly)
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{
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if (assembly == null)
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throw new ArgumentNullException("assembly");
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if (s_CachedAssemblies.Contains(assembly))
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return true;
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s_CachedAssemblies.Add(assembly);
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#if SIMPLSHARP
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CType[] types;
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#else
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Type[] types;
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#endif
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try
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{
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types = assembly.GetTypes();
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}
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#if STANDARD
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catch (ReflectionTypeLoadException e)
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{
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foreach (Exception inner in e.LoaderExceptions)
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{
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if (inner is System.IO.FileNotFoundException)
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{
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Logger.AddEntry(eSeverity.Error,
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"{0} failed to cache assembly {1} - Could not find one or more dependencies by path",
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typeof(AttributeUtils).Name, assembly.GetName().Name);
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continue;
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}
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Logger.AddEntry(eSeverity.Error, inner, "{0} failed to cache assembly {1}", typeof(AttributeUtils).Name,
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assembly.GetName().Name);
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}
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return false;
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}
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#endif
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catch (TypeLoadException e)
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{
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#if SIMPLSHARP
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Logger.AddEntry(eSeverity.Error, e, "{0} failed to cache assembly {1}", typeof(AttributeUtils).Name,
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assembly.GetName().Name);
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#else
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Logger.AddEntry(eSeverity.Error, e, "{0} failed to cache assembly {1} - could not load type {2}",
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typeof(AttributeUtils).Name, assembly.GetName().Name, e.TypeName);
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#endif
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return false;
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}
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foreach (var type in types)
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CacheType(type);
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return true;
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}
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/// <summary>
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/// Pre-emptively caches the given type for lookup.
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/// </summary>
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/// <param name="type"></param>
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#if SIMPLSHARP
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public static void CacheType(CType type)
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#else
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public static void CacheType(Type type)
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#endif
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{
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if (type == null)
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throw new ArgumentNullException("type");
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if (s_CachedTypes.Contains(type))
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return;
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s_CachedTypes.Add(type);
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try
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{
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s_TypeToAttributesCache[type] = new IcdHashSet<Attribute>(type.GetCustomAttributes<Attribute>(false));
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foreach (Attribute attribute in s_TypeToAttributesCache[type])
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s_AttributeToTypeCache[attribute] = type;
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}
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// GetMethods for Open Generic Types is not supported.
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catch (NotSupportedException)
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{
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}
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// Not sure why this happens :/
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catch (InvalidProgramException)
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{
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}
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}
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#endregion
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#region Lookup
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/// <summary>
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/// Gets the class attributes of the given generic type.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <returns></returns>
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public static IEnumerable<T> GetClassAttributes<T>()
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{
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return s_AttributeToTypeCache.Select(kvp => kvp.Key)
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.OfType<T>();
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}
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/// <summary>
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/// Gets the first attribute on the given class type matching the generic type.
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/// </summary>
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@@ -162,56 +26,29 @@ namespace ICD.Common.Utils
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[CanBeNull]
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public static T GetClassAttribute<T>(Type type)
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{
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if (type == null)
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throw new ArgumentNullException("type");
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return GetClassAttributes<T>(type).FirstOrDefault();
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return GetClassAttribute<T>(type, false);
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}
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/// <summary>
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/// Gets the attributes on the given class type matching the generic type.
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/// Gets the first attribute on the given class type matching the generic type.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="type"></param>
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/// <param name="inherit"></param>
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/// <returns></returns>
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public static IEnumerable<T> GetClassAttributes<T>(Type type)
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[CanBeNull]
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public static T GetClassAttribute<T>(Type type, bool inherit)
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{
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if (type == null)
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throw new ArgumentNullException("type");
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return GetClassAttributes(type).OfType<T>();
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}
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/// <summary>
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/// Gets the attributes on the given class.
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/// </summary>
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/// <param name="type"></param>
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/// <returns></returns>
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public static IEnumerable<Attribute> GetClassAttributes(Type type)
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{
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if (type == null)
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throw new ArgumentNullException("type");
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CacheType(type);
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IcdHashSet<Attribute> attributes;
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return s_TypeToAttributesCache.TryGetValue(type, out attributes)
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? attributes.ToArray(attributes.Count)
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: Enumerable.Empty<Attribute>();
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}
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/// <summary>
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/// Gets the type with the given attribute.
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/// </summary>
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/// <param name="attribute"></param>
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/// <returns></returns>
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public static Type GetClass(Attribute attribute)
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{
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if (attribute == null)
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throw new ArgumentNullException("attribute");
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return s_AttributeToTypeCache[attribute];
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// ReSharper disable InvokeAsExtensionMethod
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return ReflectionExtensions.GetCustomAttributes<T>(
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#if SIMPLSHARP
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(CType)
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#endif
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type, inherit).FirstOrDefault();
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// ReSharper restore InvokeAsExtensionMethod
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}
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/// <summary>
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@@ -237,7 +74,5 @@ namespace ICD.Common.Utils
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.Where(p => ReflectionExtensions.GetCustomAttributes<T>(p, inherit).Any());
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// ReSharper restore InvokeAsExtensionMethod
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}
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#endregion
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}
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}
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@@ -21,7 +21,6 @@ namespace ICD.Common.Utils.Extensions
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/// <param name="extends"></param>
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/// <returns></returns>
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public static IEnumerable<T> GetCustomAttributes<T>(this ICustomAttributeProvider extends)
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where T : Attribute
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{
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if (extends == null)
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throw new ArgumentNullException("extends");
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@@ -59,7 +58,6 @@ namespace ICD.Common.Utils.Extensions
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/// <param name="extends"></param>
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/// <returns></returns>
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public static T GetCustomAttribute<T>(this ICustomAttributeProvider extends)
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where T : Attribute
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{
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if (extends == null)
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throw new ArgumentNullException("extends");
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@@ -75,7 +73,6 @@ namespace ICD.Common.Utils.Extensions
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/// <param name="inherits"></param>
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/// <returns></returns>
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public static T GetCustomAttribute<T>(this ICustomAttributeProvider extends, bool inherits)
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where T : Attribute
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{
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if (extends == null)
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throw new ArgumentNullException("extends");
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