//
// System.Reflection.FieldInfo.cs
//
// Author:
// Miguel de Icaza (miguel@ximian.com)
//
// (C) Ximian, Inc. http://www.ximian.com
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
// Copyright 2011 Xamarin Inc (http://www.xamarin.com).
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
using System.Diagnostics;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace System.Reflection {
[ComVisible (true)]
[ComDefaultInterfaceAttribute (typeof (_FieldInfo))]
[Serializable]
[ClassInterface(ClassInterfaceType.None)]
#if MOBILE
public abstract class FieldInfo : MemberInfo {
#else
public abstract class FieldInfo : MemberInfo, _FieldInfo {
#endif
public abstract FieldAttributes Attributes {get;}
public abstract RuntimeFieldHandle FieldHandle {get;}
protected FieldInfo () {}
public abstract Type FieldType { get; }
public abstract object GetValue(object obj);
public override MemberTypes MemberType {
get { return MemberTypes.Field;}
}
public bool IsLiteral
{
get {return (Attributes & FieldAttributes.Literal) != 0;}
}
public bool IsStatic
{
get {return (Attributes & FieldAttributes.Static) != 0;}
}
public bool IsInitOnly
{
get {return (Attributes & FieldAttributes.InitOnly) != 0;}
}
public Boolean IsPublic
{
get
{
return (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Public;
}
}
public Boolean IsPrivate
{
get
{
return (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Private;
}
}
public Boolean IsFamily
{
get
{
return (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Family;
}
}
public Boolean IsAssembly
{
get
{
return (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Assembly;
}
}
public Boolean IsFamilyAndAssembly
{
get {
return (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.FamANDAssem;
}
}
public Boolean IsFamilyOrAssembly
{
get
{
return (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.FamORAssem;
}
}
public Boolean IsPinvokeImpl
{
get
{
return (Attributes & FieldAttributes.PinvokeImpl) == FieldAttributes.PinvokeImpl;
}
}
public Boolean IsSpecialName
{
get
{
return (Attributes & FieldAttributes.SpecialName) == FieldAttributes.SpecialName;
}
}
public Boolean IsNotSerialized
{
get
{
return (Attributes & FieldAttributes.NotSerialized) == FieldAttributes.NotSerialized;
}
}
public abstract void SetValue (object obj, object value, BindingFlags invokeAttr, Binder binder, CultureInfo culture);
[DebuggerHidden]
[DebuggerStepThrough]
public void SetValue (object obj, object value)
{
SetValue (obj, value, 0, null, null);
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private static extern FieldInfo internal_from_handle_type (IntPtr field_handle, IntPtr type_handle);
public static FieldInfo GetFieldFromHandle (RuntimeFieldHandle handle)
{
if (handle.Value == IntPtr.Zero)
throw new ArgumentException ("The handle is invalid.");
return internal_from_handle_type (handle.Value, IntPtr.Zero);
}
[ComVisible (false)]
public static FieldInfo GetFieldFromHandle (RuntimeFieldHandle handle, RuntimeTypeHandle declaringType)
{
if (handle.Value == IntPtr.Zero)
throw new ArgumentException ("The handle is invalid.");
FieldInfo fi = internal_from_handle_type (handle.Value, declaringType.Value);
if (fi == null)
throw new ArgumentException ("The field handle and the type handle are incompatible.");
return fi;
}
//
// Note: making this abstract imposes an implementation requirement
// on any class that derives from it. However, since it's also
// internal, that means only classes inside corlib can derive
// from FieldInfo. See
//
// errors/cs0534-4.cs errors/CS0534-4-lib.cs
//
// class/Microsoft.JScript/Microsoft.JScript/JSFieldInfo.cs
//
internal virtual int GetFieldOffset ()
{
throw new SystemException ("This method should not be called");
}
[CLSCompliant(false)]
public virtual object GetValueDirect (TypedReference obj)
{
throw new NotSupportedException(Environment.GetResourceString("NotSupported_AbstractNonCLS"));
}
[CLSCompliant(false)]
public virtual void SetValueDirect (TypedReference obj, object value)
{
throw new NotSupportedException(Environment.GetResourceString("NotSupported_AbstractNonCLS"));
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private extern MarshalAsAttribute get_marshal_info ();
internal object[] GetPseudoCustomAttributes ()
{
int count = 0;
if (IsNotSerialized)
count ++;
if (DeclaringType.IsExplicitLayout)
count ++;
MarshalAsAttribute marshalAs = get_marshal_info ();
if (marshalAs != null)
count ++;
if (count == 0)
return null;
object[] attrs = new object [count];
count = 0;
if (IsNotSerialized)
attrs [count ++] = new NonSerializedAttribute ();
if (DeclaringType.IsExplicitLayout)
attrs [count ++] = new FieldOffsetAttribute (GetFieldOffset ());
if (marshalAs != null)
attrs [count ++] = marshalAs;
return attrs;
}
[MethodImplAttribute (MethodImplOptions.InternalCall)]
extern Type[] GetTypeModifiers (bool optional);
public virtual Type[] GetOptionalCustomModifiers () {
Type[] types = GetTypeModifiers (true);
if (types == null)
return Type.EmptyTypes;
return types;
}
public virtual Type[] GetRequiredCustomModifiers () {
Type[] types = GetTypeModifiers (false);
if (types == null)
return Type.EmptyTypes;
return types;
}
public virtual object GetRawConstantValue ()
{
throw new NotSupportedException ("This non-CLS method is not implemented.");
}
public override bool Equals (object obj)
{
return obj == (object) this;
}
public override int GetHashCode ()
{
return base.GetHashCode ();
}
public static bool operator == (FieldInfo left, FieldInfo right)
{
if ((object)left == (object)right)
return true;
if ((object)left == null ^ (object)right == null)
return false;
return left.Equals (right);
}
public static bool operator != (FieldInfo left, FieldInfo right)
{
if ((object)left == (object)right)
return false;
if ((object)left == null ^ (object)right == null)
return true;
return !left.Equals (right);
}
public virtual bool IsSecurityCritical {
get {
throw new NotSupportedException ();
}
}
public virtual bool IsSecuritySafeCritical {
get {
throw new NotSupportedException ();
}
}
public virtual bool IsSecurityTransparent {
get {
throw new NotSupportedException ();
}
}
#if !MOBILE
void _FieldInfo.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
{
throw new NotImplementedException ();
}
Type _FieldInfo.GetType ()
{
// Required or object::GetType becomes virtual final
return base.GetType ();
}
void _FieldInfo.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
{
throw new NotImplementedException ();
}
void _FieldInfo.GetTypeInfoCount (out uint pcTInfo)
{
throw new NotImplementedException ();
}
void _FieldInfo.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
{
throw new NotImplementedException ();
}
#endif
}
}