Array

[tronicek at fel.cvut.cz]

Hi,

the compiler generates a warning when you call this method:

     static { => String } concat({ => String }... arg) {
         @Shared
         String s = "";
         for ({ => String } p : arg) {
             s += p.invoke();
         }
         return { => s };
     }

It is because the compiler replaces the variable-length arguments with arrays.
E.g.

     { => String } p3 = concat({ => "I" }, { => "like" }, { => "closures" });

will be transformed to:

     { => String } p3 = concat(new javax.lang.function.O[] {{ => "I"  
}, { => "like" }, { => "closures" }});

And because javax.lang.function.O is a generic type, the compiler complains.


Another thing:

{ => }[] p = null;

does not compile.


Zdenek
-- 
Zdenek Tronicek
Department of Computer Science and Engineering
Prague                   tel: +420 2 2435 7410
http://cs.felk.cvut.cz/~tronicek