private static IEnumerable <DllImportXOptions> GetMethods(Type iface, DllImportXFilter filter, out IEnumerable <MethodInfo> others)
{
var methods = new { Imports = new List <DllImportXOptions>(), Others = new List <MethodInfo>() };
foreach (var x in iface.GetMethods())
{
if (x.GetCustomAttributes(typeof(DllImportXAttribute), false).FirstOrDefault() == null)
{
methods.Others.Add(x);
}
else
{
methods.Imports.Add(new DllImportXOptions(x));
}
}
if (filter != null)
{
foreach (var import in methods.Imports)
{
filter(import);
}
}
others = methods.Others;
return(methods.Imports);
}
public static T Build <T>(DllImportXFilter filter) where T : class
{
var type = typeof(T);
var concreteType = ImplementInterface(type, filter);
return((T)Activator.CreateInstance(concreteType));
}
public static Type ImplementInterface(Type iface, DllImportXFilter filter)
{
var assemblyName = new AssemblyName("DllImportX");
#if NET35
var assemblyBuilder = AppDomain.CurrentDomain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run);
#else
var assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run);
#endif
var moduleBuilder = assemblyBuilder.DefineDynamicModule(assemblyName.Name);
var typeBuilder = DeclareType(iface, moduleBuilder);
var methods = GetMethods(iface, filter, out var otherMethods);
DefineImportMethods(typeBuilder, methods);
DefineNotImplementedMethods(typeBuilder, otherMethods);
return(typeBuilder.CreateType());
}
