public UnmanagedMethodDescription GetMethodDescriptionAndObject(Type type, IntPtr selector, IntPtr obj, ref IntPtr mthis)
{
var sel = new Selector(selector);
var res = GetMethodNoThrow(type, type, sel.Name);
if (res == null)
{
throw ErrorHelper.CreateError(8006, "Failed to find the selector '{0}' on the type '{1}'", sel.Name, type.FullName);
}
var md = res.MethodDescription;
if (md.IsInstanceCategory)
{
mthis = IntPtr.Zero;
}
else
{
var nsobj = Runtime.GetNSObject(obj, Runtime.MissingCtorResolution.ThrowConstructor1NotFound, true);
mthis = ObjectWrapper.Convert(nsobj);
if (res.Method.ContainsGenericParameters)
{
return(new MethodDescription(FindClosedMethod(nsobj.GetType(), res.Method), res.ArgumentSemantic).GetUnmanagedDescription());
}
}
return(md.GetUnmanagedDescription());
}
public void GetMethodDescriptionAndObject(Type type, IntPtr selector, bool is_static, IntPtr obj, ref IntPtr mthis, IntPtr desc)
{
var sel = Selector.GetName(selector);
var res = GetMethodNoThrow(type, type, sel, is_static);
if (res == null)
{
throw ErrorHelper.CreateError(8006, "Failed to find the selector '{0}' on the type '{1}'", sel, type.FullName);
}
if (res.IsInstanceCategory)
{
mthis = IntPtr.Zero;
}
else
{
try {
var nsobj = Runtime.GetNSObject(obj, Runtime.MissingCtorResolution.ThrowConstructor1NotFound, true);
mthis = ObjectWrapper.Convert(nsobj);
if (res.Method.ContainsGenericParameters)
{
res.WriteUnmanagedDescription(desc, Runtime.FindClosedMethod(nsobj.GetType(), res.Method));
return;
}
} catch (Exception e) {
throw ErrorHelper.CreateError(8035, e, $"Failed to get the 'this' instance in a method call to {res.DescriptiveMethodName}.");
}
}
res.WriteUnmanagedDescription(desc);
}
static void alloc_handle()
{
var obj = new object();
handle = GCHandle.Alloc(obj, GCHandleType.Pinned);
original_addr = ObjectWrapper.Convert(obj);
}
public static int test_0_pinned_handle_pins_target()
{
var t = new Thread(alloc_handle);
t.Start();
t.Join();
GC.Collect();
var newAddr = ObjectWrapper.Convert(handle.Target);
return(original_addr == newAddr ? 0 : 1);
}
void ReleaseManagedRef()
{
xamarin_release_managed_ref(handle, ObjectWrapper.Convert(this));
}
void CreateManagedRef(bool retain)
{
xamarin_create_managed_ref(handle, ObjectWrapper.Convert(this), retain);
}
