private Dispatcher(Type implementation, MethodInfo multiMethod, bool is32BitPlatform)
{
Constraints.CheckImplementationType(implementation);
Constraints.CheckMultiMethod(multiMethod);
int argumentCount = multiMethod.GetParameters().Length;
DispatchTable dispatchTable = new DispatchTable(argumentCount, is32BitPlatform);
Type currentType = implementation;
while (currentType != typeof(object))
{
MethodInfo[] methods = currentType.GetMethods(
DefaultBindingFlags | BindingFlags.DeclaredOnly);
foreach (MethodInfo candidate in methods)
{
if (candidate.MethodHandle != multiMethod.MethodHandle &&
candidate.Name == multiMethod.Name &&
candidate.GetParameters().Length == argumentCount &&
!candidate.ContainsGenericParameters &&
!HasInterfaceOrAbstractParameter(candidate))
{
Type[] types = GetParameterTypes(candidate);
//System.Diagnostics.Debug.WriteLine(
// string.Format("{0}.{1}", candidate.DeclaringType, candidate));
dispatchTable.InternalAdd(types,
MethodInvokerHelper.CreateInvoker(candidate));
}
}
currentType = currentType.BaseType;
}
_implementation = implementation;
_multiMethod = multiMethod;
_dispatchTable = dispatchTable;
}
public static MethodInvoker CreateInvoker(MethodInfo info)
{
Constraints.CheckMethod(info);
ParameterInfo[] parameters = info.GetParameters();
bool action = info.ReturnType == typeof(void);
Type[] types = null;
if (action)
{
types = new Type[parameters.Length + 1];
}
else
{
types = new Type[parameters.Length + 2];
}
types[0] = info.DeclaringType;
for (int i = 0; i < parameters.Length; ++i)
{
types[i + 1] = parameters[i].ParameterType;
}
if (action)
{
return((MethodInvoker)actionMaker[parameters.Length]
.MakeGenericMethod(types).Invoke(null, new object[] { info }));
}
else
{
types[parameters.Length + 1] = info.ReturnType;
return((MethodInvoker)funcMaker[parameters.Length]
.MakeGenericMethod(types).Invoke(null, new object[] { info }));
}
}