138 lines
3.7 KiB
C#
138 lines
3.7 KiB
C#
//
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// System.ArgIterator.cs
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//
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// Authors:
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// Dick Porter (dick@ximian.com)
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// Paolo Molaro (lupus@ximian.com)
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//
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// (C) Ximian, Inc. http://www.ximian.com
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//
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//
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// Copyright (C) 2004 Novell, Inc (http://www.novell.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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//
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace System
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{
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[StructLayout (LayoutKind.Auto)]
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public
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#if NETCORE
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ref
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#endif
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struct ArgIterator
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{
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#pragma warning disable 169, 414
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IntPtr sig;
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IntPtr args;
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int next_arg;
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int num_args;
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#pragma warning restore 169, 414
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[MethodImpl (MethodImplOptions.InternalCall)]
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extern void Setup (IntPtr argsp, IntPtr start);
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public ArgIterator (RuntimeArgumentHandle arglist)
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{
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sig = IntPtr.Zero;
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args = IntPtr.Zero;
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next_arg = num_args = 0;
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if (arglist.args == IntPtr.Zero)
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throw new PlatformNotSupportedException ();
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Setup (arglist.args, IntPtr.Zero);
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}
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[CLSCompliant (false)]
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unsafe public ArgIterator (RuntimeArgumentHandle arglist, void *ptr)
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{
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sig = IntPtr.Zero;
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args = IntPtr.Zero;
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next_arg = num_args = 0;
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if (arglist.args == IntPtr.Zero)
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throw new PlatformNotSupportedException ();
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Setup (arglist.args, (IntPtr) ptr);
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}
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public void End ()
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{
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next_arg = num_args;
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}
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public override bool Equals (object o)
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{
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throw new NotSupportedException ("ArgIterator does not support Equals.");
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}
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public override int GetHashCode ()
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{
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return sig.GetHashCode ();
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}
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[CLSCompliant (false)]
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public TypedReference GetNextArg ()
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{
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if (num_args == next_arg)
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throw new InvalidOperationException ("Invalid iterator position.");
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TypedReference result = new TypedReference ();
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unsafe {
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IntGetNextArg (&result);
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}
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return result;
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}
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[MethodImpl (MethodImplOptions.InternalCall)]
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extern unsafe void IntGetNextArg (void *res);
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[CLSCompliant (false)]
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public TypedReference GetNextArg (RuntimeTypeHandle rth)
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{
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if (num_args == next_arg)
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throw new InvalidOperationException ("Invalid iterator position.");
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TypedReference result = new TypedReference ();
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unsafe {
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IntGetNextArgWithType (&result, rth.Value);
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}
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return result;
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}
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[MethodImpl (MethodImplOptions.InternalCall)]
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extern unsafe void IntGetNextArgWithType (void *res, IntPtr rth);
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public RuntimeTypeHandle GetNextArgType ()
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{
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if (num_args == next_arg)
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throw new InvalidOperationException ("Invalid iterator position.");
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return new RuntimeTypeHandle (IntGetNextArgType ());
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}
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[MethodImpl (MethodImplOptions.InternalCall)]
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extern IntPtr IntGetNextArgType ();
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public int GetRemainingCount ()
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{
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return num_args - next_arg;
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}
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}
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}
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