124 lines
3.6 KiB
C#
124 lines
3.6 KiB
C#
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using System;
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using System.Reflection;
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using System.Collections.Generic;
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using System.Linq;
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namespace LeanCloud.Storage.Internal
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{
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public static class ReflectionHelpers
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{
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public static IEnumerable<PropertyInfo> GetProperties(Type type)
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{
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#if MONO || UNITY
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return type.GetProperties();
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#else
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return type.GetRuntimeProperties();
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#endif
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}
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public static MethodInfo GetMethod(Type type, string name, Type[] parameters)
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{
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#if MONO || UNITY
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return type.GetMethod(name, parameters);
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#else
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return type.GetRuntimeMethod(name, parameters);
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#endif
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}
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public static bool IsPrimitive(Type type)
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{
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#if MONO || UNITY
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return type.IsPrimitive;
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#else
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return type.GetTypeInfo().IsPrimitive;
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#endif
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}
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public static IEnumerable<Type> GetInterfaces(Type type)
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{
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#if MONO || UNITY
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return type.GetInterfaces();
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#else
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return type.GetTypeInfo().ImplementedInterfaces;
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#endif
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}
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public static bool IsConstructedGenericType(Type type)
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{
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#if UNITY
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return type.IsGenericType && !type.IsGenericTypeDefinition;
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#else
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return type.IsConstructedGenericType;
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#endif
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}
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public static IEnumerable<ConstructorInfo> GetConstructors(Type type)
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{
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#if UNITY
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BindingFlags searchFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
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return type.GetConstructors(searchFlags);
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#else
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return type.GetTypeInfo().DeclaredConstructors
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.Where(c => (c.Attributes & MethodAttributes.Static) == 0);
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#endif
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}
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public static Type[] GetGenericTypeArguments(Type type)
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{
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#if UNITY
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return type.GetGenericArguments();
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#else
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return type.GenericTypeArguments;
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#endif
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}
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public static PropertyInfo GetProperty(Type type, string name)
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{
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#if MONO || UNITY
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return type.GetProperty(name);
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#else
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return type.GetRuntimeProperty(name);
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#endif
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}
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/// <summary>
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/// This method helps simplify the process of getting a constructor for a type.
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/// A method like this exists in .NET but is not allowed in a Portable Class Library,
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/// so we've built our own.
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/// </summary>
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/// <param name="self"></param>
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/// <param name="parameterTypes"></param>
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/// <returns></returns>
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public static ConstructorInfo FindConstructor(this Type self, params Type[] parameterTypes)
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{
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var constructors =
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from constructor in GetConstructors(self)
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let parameters = constructor.GetParameters()
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let types = from p in parameters select p.ParameterType
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where types.SequenceEqual(parameterTypes)
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select constructor;
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return constructors.SingleOrDefault();
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}
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public static bool IsNullable(Type t)
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{
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bool isGeneric;
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#if UNITY
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isGeneric = t.IsGenericType && !t.IsGenericTypeDefinition;
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#else
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isGeneric = t.IsConstructedGenericType;
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#endif
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return isGeneric && t.GetGenericTypeDefinition().Equals(typeof(Nullable<>));
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}
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public static IEnumerable<T> GetCustomAttributes<T>(this Assembly assembly) where T : Attribute
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{
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#if UNITY
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return assembly.GetCustomAttributes(typeof(T), false).Select(attr => attr as T);
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#else
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return CustomAttributeExtensions.GetCustomAttributes<T>(assembly);
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#endif
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}
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}
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}
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