RuntimeGhostJavaMethod.cs

Go to the documentation of this file.

/*
  Copyright (C) 2002-2014 Jeroen Frijters
 
  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.
 
  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:
 
  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
 
  Jeroen Frijters
  jeroen@frijters.net
  
*/
using System.Diagnostics;
 
using IKVM.Attributes;
 
#if IMPORTER || EXPORTER
using IKVM.Reflection;
using IKVM.Reflection.Emit;
#else
using System.Reflection;
using System.Reflection.Emit;
#endif
 
namespace IKVM.Runtime
{
 
    sealed class RuntimeGhostJavaMethod : RuntimeSmartJavaMethod
    {
 
        MethodInfo ghostMethod;
        MethodInfo defaultImpl;
 
        internal RuntimeGhostJavaMethod(RuntimeJavaType declaringType, string name, string sig, MethodBase method, MethodInfo ghostMethod, RuntimeJavaType returnType, RuntimeJavaType[] parameterTypes, Modifiers modifiers, MemberFlags flags) :
            base(declaringType, name, sig, method, returnType, parameterTypes, modifiers, flags)
        {
            // make sure we weren't handed the ghostMethod in the wrapper value type
            Debug.Assert(method == null || method.DeclaringType.IsInterface);
            this.ghostMethod = ghostMethod;
        }
 
#if EMITTERS
 
        protected override void CallImpl(CodeEmitter ilgen)
        {
            ilgen.Emit(OpCodes.Call, defaultImpl);
        }
 
        protected override void CallvirtImpl(CodeEmitter ilgen)
        {
            ilgen.Emit(OpCodes.Call, ghostMethod);
        }
 
#endif
 
#if !IMPORTER && !EXPORTER && !FIRST_PASS
 
        [HideFromJava]
        internal override object Invoke(object obj, object[] args)
        {
            return InvokeAndUnwrapException(ghostMethod, DeclaringType.GhostWrap(obj), args);
        }
 
#endif
 
        internal void SetDefaultImpl(MethodInfo impl)
        {
            this.defaultImpl = impl;
        }
 
        internal MethodInfo GetDefaultImpl()
        {
            return defaultImpl;
        }
 
#if IMPORTER
 
        internal void SetGhostMethod(MethodBuilder mb)
        {
            this.ghostMethod = mb;
        }
 
        internal MethodBuilder GetGhostMethod()
        {
            return (MethodBuilder)ghostMethod;
        }
 
#endif
 
    }
 
}