Hi
At present I use an InternalCalls for my callbacks and conditional compilation
(see end) in our cross platform code
In this we assign a Func<string, string> directly to an extern static string
FilePathCallback(string EmployerName);
In future I would like to support calling methods such as
public CloudClient(Func<string, string> filePathCallback)
using the Embedded API and cut out the extra plumbing need for InternalCalls.
I have a wooly feel for how I should approach this!
When generating generic types I use a managed helper method.
So I could envisage creating a System.Delegate instance of System.Func<string,
string>.
Then I could set the Target and Method properties - however since I am calling
back into C there won’t be a Target class.
However System.Delegate is abstract so I would need to sort that out too! -
presumably this needs to be done dynamically at runtime.
I am aware of the existence of Delegate.CreateDelegate() put that only seems to
work for instance delegates.
Any insight would be helpful.
Thanks
Jonathan
end
===
public class CloudClient
{
#if TARGET_OSX
[MethodImplAttribute(MethodImplOptions.InternalCall)]
extern static string FilePathCallback(string EmployerName);
#endif
public CloudClient(Func<string, string> filePathCallback) {
_filePathCallback = filePathCallback;
#if TARGET_OSX
if (_filePathCallback == null) {
_filePathCallback = FilePathCallback;
}
#endif
}
}
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