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//
// Copyright (C) 2004 Novell, Inc (http://www.novell.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.
//
//
// System.Reflection.Emit/UnmanagedMarshal.cs
//
// Author:
// Paolo Molaro (lupus@ximian.com)
//
// (C) 2001-2002 Ximian, Inc. http://www.ximian.com
//
#if MONO_FEATURE_SRE
using System.Reflection.Emit;
using System.Runtime.InteropServices;
using System;
namespace System.Reflection.Emit {
[Obsolete ("An alternate API is available: Emit the MarshalAs custom attribute instead.")]
[ComVisible (true)]
[Serializable]
[StructLayout (LayoutKind.Sequential)]
public sealed class UnmanagedMarshal {
#pragma warning disable 169, 414
private int count;
private UnmanagedType t;
private UnmanagedType tbase;
string guid;
string mcookie;
string marshaltype;
internal Type marshaltyperef;
private int param_num;
private bool has_size;
#pragma warning restore 169, 414
private UnmanagedMarshal (UnmanagedType maint, int cnt) {
count = cnt;
t = maint;
tbase = maint;
}
private UnmanagedMarshal (UnmanagedType maint, UnmanagedType elemt) {
count = 0;
t = maint;
tbase = elemt;
}
public UnmanagedType BaseType {
get {
if (t == UnmanagedType.LPArray)
throw new ArgumentException ();
#if FEATURE_COMINTEROP
if (t == UnmanagedType.SafeArray)
throw new ArgumentException ();
#endif
return tbase;
}
}
public int ElementCount {
get {return count;}
}
public UnmanagedType GetUnmanagedType {
get {return t;}
}
public Guid IIDGuid {
get {return new Guid (guid);}
}
public static UnmanagedMarshal DefineByValArray( int elemCount) {
return new UnmanagedMarshal (UnmanagedType.ByValArray, elemCount);
}
public static UnmanagedMarshal DefineByValTStr( int elemCount) {
return new UnmanagedMarshal (UnmanagedType.ByValTStr, elemCount);
}
public static UnmanagedMarshal DefineLPArray( UnmanagedType elemType) {
return new UnmanagedMarshal (UnmanagedType.LPArray, elemType);
}
#if FEATURE_COMINTEROP
public static UnmanagedMarshal DefineSafeArray( UnmanagedType elemType) {
return new UnmanagedMarshal (UnmanagedType.SafeArray, elemType);
}
#endif
public static UnmanagedMarshal DefineUnmanagedMarshal( UnmanagedType unmanagedType) {
return new UnmanagedMarshal (unmanagedType, unmanagedType);
}
#if FEATURE_COMINTEROP
internal static UnmanagedMarshal DefineCustom (Type typeref, string cookie, string mtype, Guid id) {
UnmanagedMarshal res = new UnmanagedMarshal (UnmanagedType.CustomMarshaler, UnmanagedType.CustomMarshaler);
res.mcookie = cookie;
res.marshaltype = mtype;
res.marshaltyperef = typeref;
if (id == Guid.Empty)
res.guid = String.Empty;
else
res.guid = id.ToString ();
return res;
}
#endif
// sizeConst and sizeParamIndex can be -1 meaning they are not specified
internal static UnmanagedMarshal DefineLPArrayInternal (UnmanagedType elemType, int sizeConst, int sizeParamIndex) {
UnmanagedMarshal res = new UnmanagedMarshal (UnmanagedType.LPArray, elemType);
res.count = sizeConst;
res.param_num = sizeParamIndex;
res.has_size = true;
return res;
}
}
}
#endif
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