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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.Collections.Generic;
namespace System.Reflection
{
public abstract partial class TypeInfo : Type, IReflectableType
{
protected TypeInfo() { }
TypeInfo IReflectableType.GetTypeInfo() => this;
public virtual Type AsType() => this;
public virtual Type[] GenericTypeParameters => IsGenericTypeDefinition ? GetGenericArguments() : Type.EmptyTypes;
public virtual EventInfo GetDeclaredEvent(string name) => GetEvent(name, TypeInfo.DeclaredOnlyLookup);
public virtual FieldInfo GetDeclaredField(string name) => GetField(name, TypeInfo.DeclaredOnlyLookup);
public virtual MethodInfo GetDeclaredMethod(string name) => GetMethod(name, TypeInfo.DeclaredOnlyLookup);
public virtual TypeInfo GetDeclaredNestedType(string name) => GetNestedType(name, TypeInfo.DeclaredOnlyLookup)?.GetTypeInfo();
public virtual PropertyInfo GetDeclaredProperty(string name) => GetProperty(name, TypeInfo.DeclaredOnlyLookup);
public virtual IEnumerable<MethodInfo> GetDeclaredMethods(string name)
{
foreach (MethodInfo method in GetMethods(TypeInfo.DeclaredOnlyLookup))
{
if (method.Name == name)
yield return method;
}
}
public virtual IEnumerable<ConstructorInfo> DeclaredConstructors => GetConstructors(TypeInfo.DeclaredOnlyLookup);
public virtual IEnumerable<EventInfo> DeclaredEvents => GetEvents(TypeInfo.DeclaredOnlyLookup);
public virtual IEnumerable<FieldInfo> DeclaredFields => GetFields(TypeInfo.DeclaredOnlyLookup);
public virtual IEnumerable<MemberInfo> DeclaredMembers => GetMembers(TypeInfo.DeclaredOnlyLookup);
public virtual IEnumerable<MethodInfo> DeclaredMethods => GetMethods(TypeInfo.DeclaredOnlyLookup);
public virtual IEnumerable<System.Reflection.TypeInfo> DeclaredNestedTypes
{
get
{
foreach (Type t in GetNestedTypes(TypeInfo.DeclaredOnlyLookup))
{
yield return t.GetTypeInfo();
}
}
}
public virtual IEnumerable<PropertyInfo> DeclaredProperties => GetProperties(TypeInfo.DeclaredOnlyLookup);
public virtual IEnumerable<Type> ImplementedInterfaces => GetInterfaces();
//a re-implementation of ISAF from Type, skipping the use of UnderlyingType
public virtual bool IsAssignableFrom(TypeInfo typeInfo)
{
if (typeInfo == null)
return false;
if (this == typeInfo)
return true;
// If c is a subclass of this class, then c can be cast to this type.
if (typeInfo.IsSubclassOf(this))
return true;
if (this.IsInterface)
{
return typeInfo.ImplementInterface(this);
}
else if (IsGenericParameter)
{
Type[] constraints = GetGenericParameterConstraints();
for (int i = 0; i < constraints.Length; i++)
if (!constraints[i].IsAssignableFrom(typeInfo))
return false;
return true;
}
return false;
}
private const BindingFlags DeclaredOnlyLookup = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static | BindingFlags.DeclaredOnly;
}
}
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