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//
// Type.cs
//
// Authors:
// Marek Safar <marek.safar@gmail.com>
//
// Copyright (C) 2015 Xamarin Inc (http://www.xamarin.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.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace System
{
partial class Type : MemberInfo
{
internal RuntimeTypeHandle _impl;
#region Requires stack backtracing fixes in unmanaged type_from_name
[MethodImplAttribute(MethodImplOptions.InternalCall)]
static extern Type internal_from_name (string name, bool throwOnError, bool ignoreCase);
public static Type GetType(string typeName)
{
return GetType (typeName, false, false);
}
public static Type GetType(string typeName, bool throwOnError)
{
return GetType (typeName, throwOnError, false);
}
public static Type GetType(string typeName, bool throwOnError, bool ignoreCase)
{
if (typeName == null)
throw new ArgumentNullException ("TypeName");
if (typeName == String.Empty)
if (throwOnError)
throw new TypeLoadException ("A null or zero length string does not represent a valid Type.");
else
return null;
Type t = internal_from_name (typeName, throwOnError, ignoreCase);
if (throwOnError && t == null)
throw new TypeLoadException ("Error loading '" + typeName + "'");
return t;
}
#endregion
// TODO: Merge with internal_from_name
public static Type ReflectionOnlyGetType (string typeName,
bool throwIfNotFound,
bool ignoreCase)
{
if (typeName == null)
throw new ArgumentNullException ("typeName");
if (typeName == String.Empty && throwIfNotFound)
throw new TypeLoadException ("A null or zero length string does not represent a valid Type");
int idx = typeName.IndexOf (',');
if (idx < 0 || idx == 0 || idx == typeName.Length - 1)
throw new ArgumentException ("Assembly qualifed type name is required", "typeName");
string an = typeName.Substring (idx + 1);
Assembly a;
try {
a = Assembly.ReflectionOnlyLoad (an);
} catch {
if (throwIfNotFound)
throw;
return null;
}
return a.GetType (typeName.Substring (0, idx), throwIfNotFound, ignoreCase);
}
internal virtual Type InternalResolve ()
{
return UnderlyingSystemType;
}
// Called from the runtime to return the corresponding finished Type object
internal virtual Type RuntimeResolve ()
{
throw new NotImplementedException ();
}
internal virtual bool IsUserType {
get {
return true;
}
}
internal virtual MethodInfo GetMethod (MethodInfo fromNoninstanciated)
{
throw new System.InvalidOperationException ("can only be called in generic type");
}
internal virtual ConstructorInfo GetConstructor (ConstructorInfo fromNoninstanciated)
{
throw new System.InvalidOperationException ("can only be called in generic type");
}
internal virtual FieldInfo GetField (FieldInfo fromNoninstanciated)
{
throw new System.InvalidOperationException ("can only be called in generic type");
}
public static Type GetTypeFromHandle (RuntimeTypeHandle handle)
{
if (handle.Value == IntPtr.Zero)
// This is not consistent with the other GetXXXFromHandle methods, but
// MS.NET seems to do this
return null;
return internal_from_handle (handle.Value);
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
static extern Type internal_from_handle (IntPtr handle);
}
}
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