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//
// System.ArgIterator.cs
//
// Authors:
// Dick Porter (dick@ximian.com)
// Paolo Molaro (lupus@ximian.com)
//
// (C) Ximian, Inc. http://www.ximian.com
//
//
// 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.
//
using System.Runtime.CompilerServices;
namespace System
{
public struct ArgIterator
{
IntPtr sig;
IntPtr args;
int next_arg;
int num_args;
[MethodImpl (MethodImplOptions.InternalCall)]
extern void Setup (IntPtr argsp, IntPtr start);
public ArgIterator (RuntimeArgumentHandle arglist)
{
sig = IntPtr.Zero;
args = IntPtr.Zero;
next_arg = num_args = 0;
Setup (arglist.args, IntPtr.Zero);
}
[CLSCompliant (false)]
unsafe public ArgIterator (RuntimeArgumentHandle arglist, void *ptr)
{
sig = IntPtr.Zero;
args = IntPtr.Zero;
next_arg = num_args = 0;
Setup (arglist.args, (IntPtr) ptr);
}
public void End ()
{
next_arg = num_args;
}
public override bool Equals (object o)
{
throw new NotSupportedException (Locale.GetText ("ArgIterator does not support Equals."));
}
public override int GetHashCode ()
{
return sig.GetHashCode ();
}
[CLSCompliant (false)]
public TypedReference GetNextArg ()
{
if (num_args == next_arg)
throw new InvalidOperationException (Locale.GetText ("Invalid iterator position."));
return IntGetNextArg ();
}
[MethodImpl (MethodImplOptions.InternalCall)]
extern TypedReference IntGetNextArg ();
[CLSCompliant (false)]
public TypedReference GetNextArg (RuntimeTypeHandle rth)
{
if (num_args == next_arg)
throw new InvalidOperationException (Locale.GetText ("Invalid iterator position."));
return IntGetNextArg (rth.Value);
}
[MethodImpl (MethodImplOptions.InternalCall)]
extern TypedReference IntGetNextArg (IntPtr rth);
public RuntimeTypeHandle GetNextArgType ()
{
if (num_args == next_arg)
throw new InvalidOperationException (Locale.GetText ("Invalid iterator position."));
return new RuntimeTypeHandle (IntGetNextArgType ());
}
[MethodImpl (MethodImplOptions.InternalCall)]
extern IntPtr IntGetNextArgType ();
public int GetRemainingCount ()
{
return num_args - next_arg;
}
}
}
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