Hi Tim, Take a look at https://golang.org/ref/spec#Calls:
"A method call x.m() is valid if the method set of (the type of) x contains m and the argument list can be assigned to the parameter list of m. If x is addressable and &x's method set contains m, x.m() is shorthand for (&x).m()" Paul On 5 February 2018 at 17:42, theckman via golang-nuts < golang-nuts@googlegroups.com> wrote: > Hey Gophers, > > I've run in to an interesting case regarding Method Sets that makes me > wonder whether it should be disallowed by the spec[1]. Before opening an > issue on GitHub I thought I'd reach out here to get some clarifications as > I may be misreading the spec. > > Based on my understanding of method sets, a variable with the type *T should > have a method set that contains methods on T and *T, while a variable of > type T should only have methods with a receiver for T in the method set. > To me this translates that if my variable is not a pointer type it should > not be able to call a method that's receiving a pointer type. > > However, I've observed that to not be the case. If I have a variable of > type T, I am able to invoke methods that are receiving *T[2]. Should that > be permitted by the spec? It adds some inconsistency because I am able to > invoke the method on my variable, but the variable won't satisfy an > interface that has that method included[3]. I think it's acceptable that > the interface isn't satisfied, but what makes it so that invoking the > method directly is permitted? > > Cheers! > -Tim > > [1] https://golang.org/ref/spec#Method_sets > [2] https://play.golang.org/p/-OMAnD7U0Vl > [3] https://play.golang.org/p/uP0_eMYqYEe > > -- > 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. > -- 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.
