Kiyokuni Kawachiya <kawat...@jp.ibm.com> wrote on 01/09/2011 11:33:33 AM:
> The following code works with X10 2.1.0, but cannot be compiled with the
> latest HEAD.
> It seems that Dist.places() returns Sequence[Place] in 2.1.0 but returns
> PlaceGroup in HEAD.
>
> public class PlaceTest {
> public static def main(Array[String]){
> val places = Dist.makeUnique().places();
> Console.OUT.println(places.size);
> }
> }
>
> $ x10c++ PlaceTest.x10
> x10c++: PlaceTest.cc: In static member function 'static void
>
PlaceTest::main(x10aux::ref<x10::array::Array<x10aux::ref<x10::lang::String>
> > >)':
> PlaceTest.cc:19: error: 'class x10::array::PlaceGroup' has no
member
> named 'x10__size'
> x10c++: Non-zero return code: 1
> 2 errors.
>
>
> However, PlaceGroup implements Sequence[Place], and Sequence has a
> property size.
> Why the above code fails to compile?
Hi,
This seems to be an instance of
http://jira.codehaus.org/browse/XTENLANG-945
(though in this case it fails for both backends). There are two problems:
(1) the compiler is not recognizing the interface property as something
that
requires an implementation -- I'm working on a fix for this, and (2) the
code
in PlaceGroup.x10 is actually invalid -- we need to figure out how to fix
this
properly.
Please watch the above JIRA issue for progress on this.
Igor
--
Igor Peshansky (note the spelling change!)
IBM T.J. Watson Research Center
X10: Parallel Productivity and Performance (http://x10-lang.org/)
XJ: No More Pain for XML's Gain (http://www.research.ibm.com/xj/)
"I hear and I forget. I see and I remember. I do and I understand" --
Xun Zi
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