We're still not using macros in the 2.10 branch, so this issue will still happen there. We may do macros later but it's a fair bit of work so I wouldn't guarantee that it happens in our first 2.10 release.
Matei On Oct 12, 2013, at 2:33 PM, Mark Hamstra <[email protected]> wrote: > That's a TODO that is either now possible in the 2.10 branch or pretty close > to possible -- which isn't the same thing as easy. > > > On Sat, Oct 12, 2013 at 2:20 PM, Aaron Davidson <[email protected]> wrote: > Out of curiosity, does the Scala 2.10 Spark interpreter patch fix this using > macros as Matei suggests in the linked discussion? Or is that still future > work, but now possible? > > > On Fri, Oct 11, 2013 at 6:04 PM, Reynold Xin <[email protected]> wrote: > This is a known problem and has to do with peculiarity of the Scala shell: > > https://groups.google.com/forum/#!searchin/spark-users/error$3A$20type$20mismatch|sort:relevance/spark-users/bwAmbUgxWrA/HwP4Nv4adfEJ > > > On Fri, Oct 11, 2013 at 6:01 PM, Aaron Davidson <[email protected]> wrote: > Playing around with this a little more, it seems that classOf[Animal] is > "this.Animal" in Spark and "Animal" in normal Scala. > > Also, trying to do something like this: > class Zoo[A <: this.Animal](thing: A) { } > > works in Scala but throws a weird error in Spark: > "error: type Animal is not a member of this.$iwC" > > > On Fri, Oct 11, 2013 at 4:55 PM, Shay Seng <[email protected]> wrote: > Hey, > I seeing a funny situation where a piece of code executes in a pure Scala > REPL but not in a Spark-shell. > I'm using Scala 2.9.3 with Spark 0.8.0 > > In Spark I see: > class Animal() { > def says():String = "???" > } > > val amimal = new Animal > amimal: this.Animal = Animal@df27cd5 > > class Zoo[A <: Animal](thing: A) { > def whoami()=thing.getClass > def chat()=thing.says > } > > val z = new Zoo[Animal](amimal) > <console>:16: error: type mismatch; > found : this.Animal > required: this.Animal > val z = new Zoo[Animal](amimal) > ^ > > But if I run the exact code in the scala REPL: > > val z = new Zoo[Animal](amimal) > z: Zoo[Animal] = Zoo@738ff53f > > > Both repl report using scala 2.9.3 > Spark: "Using Scala version 2.9.3 (Java HotSpot(TM) 64-Bit Server VM, Java > 1.7.0_40)" > Scala: "Welcome to Scala version 2.9.3 (Java HotSpot(TM) 64-Bit Server VM, > Java 1.7.0_40)." > Any ideas? > > tks, > Shay > > > >
