On Fri, 27 Apr 2018 22:06:07 -0700 (PDT) k1atti...@gmail.com wrote: > How can i get a list of types which implement a particular interface ? ( > for exmaple io.Reader)
By using a tool named 'guru'. http://golang.org/s/using-guru https://godoc.org/golang.org/x/tools/cmd/guru Unlike in (almost?) all other languages in Go you need not to declare you are about to implement an Interface. The 'implementing Interface' in Go means that your data object (struct) has a named method to call. Then any other function may declare that it takes an 'Interface' parameter - so it may **call** specified methods. Any object with a method: 'Read([]byte) (int, error)' fulfills Reader interface. When your object with above Read method is passed as parameter to some function said function need not to know **anything** else about said object but "I can call Read([]byte) (int, error)" on it. You may use guru to know who implements what, but this information is usually irrelevant and is not needed to write go programs. You look at an Interface declaration - in Go usually not more than two or three function signatures - then look at object of interest whether it has methods with given by Interface signatures. > Thank you in advance > Attila -- Wojciech S. Czarnecki << ^oo^ >> OHIR-RIPE -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
