mcs/class/referencesource/mscorlib/system/reflection/memberinfo.cs

   1 // ==++==
   2 //
   3 //   Copyright(c) Microsoft Corporation.  All rights reserved.
   4 //
   5 // ==--==
   6 // <OWNER>Microsoft</OWNER>
   7 //
   8
   9 namespace System.Reflection
  10 {
  11     using System;
  12     using System.Collections.Generic;
  13     using System.Diagnostics.Contracts;
  14     using System.Runtime;
  15     using System.Runtime.InteropServices;
  16     using System.Security.Permissions;
  17
  18     [Serializable]
  19     [ClassInterface(ClassInterfaceType.None)]
  20     [ComDefaultInterface(typeof(_MemberInfo))]
  21 #pragma warning disable 618
  22     [PermissionSetAttribute(SecurityAction.InheritanceDemand, Name = "FullTrust")]
  23 #pragma warning restore 618
  24     [System.Runtime.InteropServices.ComVisible(true)]
  25 #if CONTRACTS_FULL
  26     [ContractClass(typeof(MemberInfoContracts))]
  27 #endif
  28     public abstract class MemberInfo : ICustomAttributeProvider, _MemberInfo
  29     {
  30         #region Constructor
  31         protected MemberInfo() { }
  32         #endregion
  33
  34         #region Internal Methods
  35         internal virtual bool CacheEquals(object o) { throw new NotImplementedException(); }
  36         #endregion
  37
  38         #region Public Abstract\Virtual Members
  39         public abstract MemberTypes MemberType { get; }
  40
  41         public abstract String Name { get; }
  42
  43         public abstract Type DeclaringType { get; }
  44
  45         public abstract Type ReflectedType { get; }
  46
  47         public virtual IEnumerable<CustomAttributeData> CustomAttributes
  48         {
  49             get
  50             {
  51                 return GetCustomAttributesData();
  52             }
  53         }
  54         public abstract Object[] GetCustomAttributes(bool inherit);
  55
  56         public abstract Object[] GetCustomAttributes(Type attributeType, bool inherit);
  57
  58         public abstract bool IsDefined(Type attributeType, bool inherit);
  59
  60         public virtual IList<CustomAttributeData> GetCustomAttributesData()
  61         {
  62             throw new NotImplementedException();
  63         }
  64
  65 #if MONO
  66         public virtual extern int MetadataToken {
  67             [System.Runtime.CompilerServices.MethodImplAttribute (System.Runtime.CompilerServices.MethodImplOptions.InternalCall)]
  68             get;
  69         }
  70 #else
  71         public virtual int MetadataToken { get { throw new InvalidOperationException(); } }
  72 #endif
  73
  74         public virtual Module Module
  75         {
  76             get
  77             {
  78                 if (this is Type)
  79                     return ((Type)this).Module;
  80
  81                 throw new NotImplementedException();
  82             }
  83         }
  84
  85
  86
  87         #endregion
  88
  89 #if !FEATURE_CORECLR
  90         public static bool operator ==(MemberInfo left, MemberInfo right)
  91         {
  92             if (ReferenceEquals(left, right))
  93                 return true;
  94
  95             if ((object)left == null || (object)right == null)
  96                 return false;
  97
  98             Type type1, type2;
  99             MethodBase method1, method2;
 100             FieldInfo field1, field2;
 101             EventInfo event1, event2;
 102             PropertyInfo property1, property2;
 103
 104             if ((type1 = left as Type) != null && (type2 = right as Type) != null)
 105                 return type1 == type2;
 106             else if ((method1 = left as MethodBase) != null && (method2 = right as MethodBase) != null)
 107                 return method1 == method2;
 108             else if ((field1 = left as FieldInfo) != null && (field2 = right as FieldInfo) != null)
 109                 return field1 == field2;
 110             else if ((event1 = left as EventInfo) != null && (event2 = right as EventInfo) != null)
 111                 return event1 == event2;
 112             else if ((property1 = left as PropertyInfo) != null && (property2 = right as PropertyInfo) != null)
 113                 return property1 == property2;
 114
 115             return false;
 116         }
 117
 118         public static bool operator !=(MemberInfo left, MemberInfo right)
 119         {
 120             return !(left == right);
 121         }
 122 #endif // !FEATURE_CORECLR
 123
 124         public override bool Equals(object obj)
 125         {
 126             return base.Equals(obj);
 127         }
 128
 129         public override int GetHashCode()
 130         {
 131             return base.GetHashCode();
 132         }
 133
 134 #if !FEATURE_CORECLR
 135         // this method is required so Object.GetType is not made final virtual by the compiler
 136         Type _MemberInfo.GetType()
 137         {
 138             return base.GetType();
 139         }
 140
 141         void _MemberInfo.GetTypeInfoCount(out uint pcTInfo)
 142         {
 143             throw new NotImplementedException();
 144         }
 145
 146         void _MemberInfo.GetTypeInfo(uint iTInfo, uint lcid, IntPtr ppTInfo)
 147         {
 148             throw new NotImplementedException();
 149         }
 150
 151         void _MemberInfo.GetIDsOfNames([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 152         {
 153             throw new NotImplementedException();
 154         }
 155
 156         void _MemberInfo.Invoke(uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 157         {
 158             throw new NotImplementedException();
 159         }
 160 #endif
 161     }
 162
 163 #if CONTRACTS_FULL
 164     [ContractClassFor(typeof(MemberInfo))]
 165     internal abstract class MemberInfoContracts : MemberInfo
 166     {
 167         public override String Name {
 168             get {
 169                 Contract.Ensures(Contract.Result<String>() != null);
 170                 return default(String);
 171             }
 172         }
 173     }
 174 #endif // CONTRACTS_FULL
 175
 176 }