How to generate the F# type signature similar to FSI in my own code?

Question

If one uses the F# Interactive Shell (FSI), the inferred expression type (signature) is printed to the console along with its value:

val it : int * string *          


        

Answer 1

If you look at the F# compiler code and see how the --sig option is handled by the compiler I think that will get you what you're looking for. More about the --sig option and signatures here:

Signatures (F#)