// ==++==
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--==
////////////////////////////////////////////////////////////////////////////////

using System;

namespace System.Runtime.InteropServices {
    //| <include file='doc\Attributes.uex' path='docs/doc[@for="GuidAttribute"]/*' />
    [AttributeUsage(AttributeTargets.Assembly |
                    AttributeTargets.Interface |
                    AttributeTargets.Class |
                    AttributeTargets.Enum |
                    AttributeTargets.Struct |
                    AttributeTargets.Delegate, Inherited = false)]
    public sealed class GuidAttribute : Attribute
    {
        public GuidAttribute(String guid);
    }

    //| <include file='doc\Attributes.uex' path='docs/doc[@for="InAttribute"]/*' />
    [AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
    public sealed class InAttribute : Attribute
    {
        //| <include file='doc\Attributes.uex' path='docs/doc[@for="InAttribute.InAttribute"]/*' />
        public InAttribute();
    }

    //| <include file='doc\Attributes.uex' path='docs/doc[@for="OutAttribute"]/*' />
    [AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
    public sealed class OutAttribute : Attribute
    {
        //| <include file='doc\Attributes.uex' path='docs/doc[@for="OutAttribute.OutAttribute"]/*' />
        public OutAttribute();
    }

    //| <include file='doc\Attributes.uex' path='docs/doc[@for="OptionalAttribute"]/*' />
    [AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
    public sealed class OptionalAttribute : Attribute
    {
        //| <include file='doc\Attributes.uex' path='docs/doc[@for="OptionalAttribute.OptionalAttribute"]/*' />
        public OptionalAttribute();
    }

    //| <include file='doc\Attributes.uex' path='docs/doc[@for="StructLayoutAttribute"]/*' />
    [AttributeUsage(AttributeTargets.Class |
                    AttributeTargets.Struct, Inherited = false)]
    public sealed class StructLayoutAttribute : Attribute
    {
        public StructLayoutAttribute(LayoutKind layoutKind);

        //| <include file='doc\Attributes.uex' path='docs/doc[@for="StructLayoutAttribute.StructLayoutAttribute1"]/*' />
        public StructLayoutAttribute(short layoutKind);

        //| <include file='doc\Attributes.uex' path='docs/doc[@for="StructLayoutAttribute.Pack"]/*' />
        public int  Pack;
        //| <include file='doc\Attributes.uex' path='docs/doc[@for="StructLayoutAttribute.Size"]/*' />
        public int  Size;
    }

    //| <include file='doc\Attributes.uex' path='docs/doc[@for="FieldOffsetAttribute"]/*' />
    [AttributeUsage(AttributeTargets.Field, Inherited = false)]
    public sealed class FieldOffsetAttribute : Attribute
    {
        public FieldOffsetAttribute(int offset);
    }

    //| <include file='doc\Attributes.uex' path='docs/doc[@for="ComCompatibleVersionAttribute"]/*' />
    [AttributeUsage(AttributeTargets.Assembly, Inherited = false)]
    public sealed class ComCompatibleVersionAttribute : Attribute
    {
        //| <include file='doc\Attributes.uex' path='docs/doc[@for="ComCompatibleVersionAttribute.ComCompatibleVersionAttribute"]/*' />
        public ComCompatibleVersionAttribute(int major, int minor, int build, int revision);
    }

    public enum GCOption {
        NONE = 0,
        GCFRIEND = 1,
        NOGC = 2,
        NOSTGC = 3,
    }

    [AttributeUsage(AttributeTargets.Method, Inherited = false)]
    public sealed class GCAnnotationAttribute : Attribute {
        public GCAnnotationAttribute(GCOption options );
    }
}