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 >>>> >>> >>> >> >
