Nice NEWS,1.67,1.68

Update of /cvsroot/nice/Nice
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv11965

Modified Files:
	NEWS 
Log Message:
RFE 681385 implemented.

Index: NEWS
===================================================================
RCS file: /cvsroot/nice/Nice/NEWS,v
retrieving revision 1.67
retrieving revision 1.68
diff -C2 -d -r1.67 -r1.68
*** NEWS	7 Mar 2005 17:10:54 -0000	1.67
--- NEWS	7 Mar 2005 20:52:55 -0000	1.68
***************
*** 6,19 ****
        // Test if a bad implementation has returned null instead of exception.
        if(maybeNull(prng) == null) workaround();
!   * Nullness analysis of assignments (RFE 681385) is partially implemented.
      It is now possible to write:
!       class Foo {}
!       var ?Foo FOO_INSTANCE = null;
!       Foo getFooInstance(){
!         var instance = FOO_INSTANCE; if( null != instance ) return instance;
!         instance = new Foo(); FOO_INSTANCE = instance; return instance;
        }
!     becouse Nice will detect that "instance" is of a "sure type"
!     after the "instance = new Foo();" assignment.
    * Allow value returns in void methods. It's useful when exiting from
      the method in a branch after doing a single operation. For instance,
--- 6,20 ----
        // Test if a bad implementation has returned null instead of exception.
        if(maybeNull(prng) == null) workaround();
!   * Nullness analysis of assignments (RFE 681385) is implemented.
      It is now possible to write:
!       Foo func( ?Foo foo ) {
!         if( foo == null ) {
!           foo = new Foo();
!         }
!         // Do some operations
!         return foo;
        }
!     since Nice will detect that foo can't be null after the "foo = new Foo()",
!     and will propagate this information outside of "if( foo == null )" checks.
    * Allow value returns in void methods. It's useful when exiting from
      the method in a branch after doing a single operation. For instance,



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