protected Type LoadClass(Type baseType, Type interfaceType, Type[] additionalInterfaceTypes)
{
String className = interfaceType.FullName + "$" + baseType.Name + "$" + Arrays.GetHashCode(additionalInterfaceTypes);
if (className.StartsWith("java."))
{
className = "ambeth." + className;
}
lock (writeLock)
{
AccessorClassLoader loader = AccessorClassLoader.Get(interfaceType);
Type type = loader.LoadClass(className);
if (type != null)
{
return(type);
}
return(CreateGpType(loader, interfaceType, additionalInterfaceTypes, className));
}
}
protected Type CreateGpType(AccessorClassLoader loader, Type proxyType, Type[] additionalProxyTypes, String className)
{
String classNameInternal = className.Replace('.', '/');
Type abstractType = typeof(GCProxy);
List <Type> interfaceClasses = new List <Type>();
interfaceClasses.Add(proxyType);
foreach (Type additionalProxyType in additionalProxyTypes)
{
interfaceClasses.Add(additionalProxyType);
}
TypeBuilder cw = loader.CreateNewType(TypeAttributes.Public, classNameInternal, abstractType, Type.EmptyTypes);
{
ConstructorInfo baseConstructor = abstractType.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, new Type[] { typeof(Object), typeof(IDisposable) }, null);
if (baseConstructor == null)
{
throw new Exception("Constructor not found: " + abstractType.FullName);
}
ILGenerator mv = cw.DefineConstructor(MethodAttributes.Public, CallingConventions.HasThis, TypeUtil.GetParameterTypesToTypes(baseConstructor.GetParameters())).GetILGenerator();
mv.Emit(OpCodes.Ldarg_0);
mv.Emit(OpCodes.Ldarg_1);
mv.Emit(OpCodes.Ldarg_2);
mv.Emit(OpCodes.Call, baseConstructor);
mv.Emit(OpCodes.Ret);
}
{
ConstructorInfo baseConstructor = abstractType.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, new Type[] { typeof(IDisposable) }, null);
if (baseConstructor == null)
{
throw new Exception("Constructor not found: " + abstractType.FullName);
}
ILGenerator mv = cw.DefineConstructor(MethodAttributes.Public, CallingConventions.HasThis, TypeUtil.GetParameterTypesToTypes(baseConstructor.GetParameters())).GetILGenerator();
mv.Emit(OpCodes.Ldarg_0);
mv.Emit(OpCodes.Ldarg_1);
mv.Emit(OpCodes.Call, baseConstructor);
mv.Emit(OpCodes.Ret);
}
MethodInfo targetMethod = ReflectUtil.GetDeclaredMethod(false, typeof(GCProxy), typeof(Object), "ResolveTarget");
CHashSet <MethodInfo> alreadyImplementedMethods = new CHashSet <MethodInfo>();
foreach (Type interfaceClass in interfaceClasses)
{
MethodInfo[] methods = interfaceClass.GetMethods();
foreach (MethodInfo method in methods)
{
if (GCProxy.disposeMethod.Equals(method))
{
// will remain implemented by the GCProxy class
continue;
}
if (!alreadyImplementedMethods.Add(method))
{
continue;
}
MethodAttributes attributes = 0;
Type[] paramTypes = TypeUtil.GetParameterTypesToTypes(method.GetParameters());
ILGenerator mv = cw.DefineMethod(method.Name, attributes, CallingConventions.HasThis, method.ReturnType, paramTypes).GetILGenerator();
mv.Emit(OpCodes.Ldarg_0);
mv.Emit(OpCodes.Callvirt, targetMethod);
mv.Emit(OpCodes.Castclass, method.DeclaringType);
for (int a = 0, size = paramTypes.Length; a < size; a++)
{
mv.Emit(OpCodes.Ldarg, a + 1);
}
mv.Emit(OpCodes.Callvirt, method);
mv.Emit(OpCodes.Ret);
}
}
return(loader.GetType(classNameInternal, cw));
}
