internal static object Call(IntPtr instance, string name, object[] args)
{
Contract.Requires(instance != IntPtr.Zero, "instance is zero");
object result;
if (name == "alloc" && args.Length == 0) // need this so we can create an auto release pool without leaking NSMethodSignature
{
IntPtr exception = IntPtr.Zero;
IntPtr ip = DirectCalls.Callp(instance, Selector.Alloc, ref exception);
if (exception != IntPtr.Zero)
{
CocoaException.Raise(exception);
}
result = NSObject.Lookup(ip);
}
else
{
Selector selector = new Selector(name);
MethodSignature sig = new MethodSignature(instance, (IntPtr)selector);
Native native = new Native(instance, selector, sig);
native.SetArgs(args);
result = native.Invoke();
}
return(result);
}
/// <summary>Dynamic call to an exported type's base class method.</summary>
/// <param name = "baseClass">The class for the type (or a descendent of the type) containing the method you want to call.</param>
/// <param name = "name">A method name, e.g. "setFrame:display:".</param>
/// <param name = "args">The arguments to pass to the method. If the arity or argument types
/// don't match the unmanaged code an exception will be thrown.</param>
public object SuperCall(Class baseClass, string name, params object[] args)
{
Contract.Requires(baseClass != null, "baseClass is null");
Contract.Requires(!string.IsNullOrEmpty(name), "name is null or empty");
Contract.Requires(!m_deallocated, "ref count is zero");
object result = IntPtr.Zero;
if (m_instance != IntPtr.Zero)
{
Native native = new Native(m_instance, new Selector(name), baseClass);
native.SetArgs(args);
result = native.Invoke();
}
return(result);
}
/// <summary>Allows Call expressions to be chained.</summary>
public static object Call(this object instance, Selector selector, params object[] args)
{
Contract.Requires(selector != null, "selector is null");
Contract.Requires(args != null, "args is null");
object result = new NSObject(IntPtr.Zero);
if (instance != null)
{
IntPtr ptr;
if (instance.GetType() == typeof(IntPtr))
{
ptr = (IntPtr)instance;
}
else
{
ptr = (IntPtr)(NSObject)instance;
}
if (selector.Name == "init" && args.Length == 0)
{
IntPtr exception = IntPtr.Zero;
IntPtr ip = DirectCalls.Callp(ptr, Selector.Init, ref exception);
if (exception != IntPtr.Zero)
{
CocoaException.Raise(exception);
}
result = NSObject.Lookup(ip);
}
else
{
Native invoke = new Native(ptr, selector);
invoke.SetArgs(args);
result = invoke.Invoke();
}
}
return(result);
}
internal static object Call(IntPtr instance, string name, object[] args)
{
Contract.Requires(instance != IntPtr.Zero, "instance is zero");
object result;
if (name == "alloc" && args.Length == 0) // need this so we can create an auto release pool without leaking NSMethodSignature
{
IntPtr exception = IntPtr.Zero;
IntPtr ip = DirectCalls.Callp(instance, Selector.Alloc, ref exception);
if (exception != IntPtr.Zero)
CocoaException.Raise(exception);
result = NSObject.Lookup(ip);
}
else
{
Selector selector = new Selector(name);
MethodSignature sig = new MethodSignature(instance, (IntPtr) selector);
Native native = new Native(instance, selector, sig);
native.SetArgs(args);
result = native.Invoke();
}
return result;
}
