The dot firm is an explicit call to interop. Protocols are a clojure concept :) The underlying mechanism happens to look like a Java interface today. However you can expect to bypass some niceties by doing this.
This is what the JVM offers today to implementors. Might be different in future releases of the JVM. Luc P. > On 12/06/12 14:43, Tassilo Horn wrote: > > "Jim - FooBar();"<jimpil1...@gmail.com> writes: > > > >>>> If update-position is a protocol function just call it without the > >>>> dot. Just like a normal function. Then any reflection will go away > >>>> and no type hint is needed. > >>> WHAT??? Seriously??? I'll try it... > >> OMG! You were right Meikel... I cannot believe this! I don't recall > >> reading about this anywhere... > > I already demonstrated this is my very first reply. ;-) > > > > Bye, > > Tassilo > > > > Yes, but I was under the impression that it made no difference whether > you call it with the '.' or not...I was just calling with '.' just to > show that there actually exists a java class underneath but i never > expected that loosing the dot would erase reflection warnings! that's > what I meant... > > > What's update-position? Shouldn't that be (updatePosition p coords), as > > you say IPieces have an updatePosition method? And since you use that > > for side effects (you don't use the return value), are your IPiece > > implementors actually deftypes with :volatile-mutable or > > :unsynchronized-mutable fields? > > No, my IPiece implementors are records that hold a java.awt.Point > object. This is indeed the only piece of mutable state in the whole > namespace. (updatePosition p coords) will simply call 'setLocation()' on > the Point of p. Are you saying that my defrecords should be deftypes? if > yes, can you elaborate? > > > You see, it's still far from clear to me > > better now? the project is on github in case you want to have a look -> > Clondie24.core > > any suggestions are welcome... I have to say I needed far less > type-hints to get rid of reflection than I originally thought! > > Jim > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > -- Softaddicts<lprefonta...@softaddicts.ca> sent by ibisMail from my ipad! -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
