141 lines
4.5 KiB
C#
141 lines
4.5 KiB
C#
//
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// System.Reflection.FieldInfo.cs
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//
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// Author:
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// Miguel de Icaza (miguel@ximian.com)
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//
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// (C) Ximian, Inc. http://www.ximian.com
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// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
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// Copyright 2011 Xamarin Inc (http://www.xamarin.com).
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Globalization;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace System.Reflection {
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[Serializable]
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partial class FieldInfo : MemberInfo {
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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private static extern FieldInfo internal_from_handle_type (IntPtr field_handle, IntPtr type_handle);
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public static FieldInfo GetFieldFromHandle (RuntimeFieldHandle handle)
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{
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if (handle.Value == IntPtr.Zero)
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throw new ArgumentException ("The handle is invalid.");
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return internal_from_handle_type (handle.Value, IntPtr.Zero);
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}
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[ComVisible (false)]
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public static FieldInfo GetFieldFromHandle (RuntimeFieldHandle handle, RuntimeTypeHandle declaringType)
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{
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if (handle.Value == IntPtr.Zero)
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throw new ArgumentException ("The handle is invalid.");
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FieldInfo fi = internal_from_handle_type (handle.Value, declaringType.Value);
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if (fi == null)
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throw new ArgumentException ("The field handle and the type handle are incompatible.");
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return fi;
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}
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internal virtual int GetFieldOffset ()
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{
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throw new SystemException ("This method should not be called");
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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private extern MarshalAsAttribute get_marshal_info ();
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internal object[] GetPseudoCustomAttributes ()
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{
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int count = 0;
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if (IsNotSerialized)
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count ++;
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if (DeclaringType.IsExplicitLayout)
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count ++;
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MarshalAsAttribute marshalAs = get_marshal_info ();
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if (marshalAs != null)
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count ++;
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if (count == 0)
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return null;
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object[] attrs = new object [count];
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count = 0;
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if (IsNotSerialized)
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attrs [count ++] = new NonSerializedAttribute ();
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if (DeclaringType.IsExplicitLayout)
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attrs [count ++] = new FieldOffsetAttribute (GetFieldOffset ());
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if (marshalAs != null)
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attrs [count ++] = marshalAs;
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return attrs;
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}
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internal CustomAttributeData[] GetPseudoCustomAttributesData ()
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{
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int count = 0;
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if (IsNotSerialized)
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count++;
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if (DeclaringType.IsExplicitLayout)
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count++;
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MarshalAsAttribute marshalAs = get_marshal_info ();
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if (marshalAs != null)
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count++;
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if (count == 0)
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return null;
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CustomAttributeData[] attrsData = new CustomAttributeData [count];
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count = 0;
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if (IsNotSerialized)
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attrsData [count++] = new CustomAttributeData ((typeof (NonSerializedAttribute)).GetConstructor (Type.EmptyTypes));
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if (DeclaringType.IsExplicitLayout) {
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var ctorArgs = new CustomAttributeTypedArgument[] { new CustomAttributeTypedArgument (typeof (int), GetFieldOffset ()) };
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attrsData [count++] = new CustomAttributeData (
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(typeof (FieldOffsetAttribute)).GetConstructor (new[] { typeof (int) }),
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ctorArgs,
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EmptyArray<CustomAttributeNamedArgument>.Value);
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}
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if (marshalAs != null) {
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var ctorArgs = new CustomAttributeTypedArgument[] { new CustomAttributeTypedArgument (typeof (UnmanagedType), marshalAs.Value) };
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attrsData [count++] = new CustomAttributeData (
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(typeof (MarshalAsAttribute)).GetConstructor (new[] { typeof (UnmanagedType) }),
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ctorArgs,
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EmptyArray<CustomAttributeNamedArgument>.Value);//FIXME Get named params
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}
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return attrsData;
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}
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}
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}
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