Skip to content


Subversion checkout URL

You can clone with
Download ZIP
Branch: non-bootstrap
Fetching contributors…

Cannot retrieve contributors at this time

67 lines (40 sloc) 2.07 KB
Announce: Niecza Perl 6 v18
This is the eighteenth release of Niecza Perl 6, as usual scheduled on
the last Monday of the month.
You can obtain a build of Niecza from [1]. This build contains a
working compiler as a set of .exe and .dll files suitable for use with
Mono or Microsoft .NET. If you wish to follow latest developments,
you can obtain the source from [2]; however, you still need a
binary for bootstrapping.
Niecza is a Perl 6 compiler project studying questions about the
efficient implementability of Perl 6 features. It currently targets
the Common Language Runtime; both Mono and Microsoft .NET are known to
work. On Windows, Cygwin is required for source builds only; see the
README for details.
List of changes
[Breaking changes]
substr now returns a read-only value in accordance with specification changes.
To modify the substr return value, use substr-rw (new in this release).
Default new() methods, when passed arguments to initialize @.attributes,
now treat the argument as a whole array. In other words,
(class :: { has }).new(foo => [1, 2, 3]) no longer results in an
additional level of boxing.
[Exciting major features]
Exceptions and warnings generated within a span of call-less statements
are now much more likely to give the correct line number. (Exciting to me!)
Many setting operators like + are now multis and can be extended by user code.
[Minor changes]
Added ms// syntax (Solomon Foster).
Added Rat.Rat, Rat.norm (Solomon Foster).
Numerous bug fixes.
Niecza::Benchmark has been rewritten and is now a bit more robust.
[Major internals changes]
Containerization of values is no longer mandatory; bare values are now used
everywhere read-only Scalars were in v17. In particular, the NewROScalar
function has been removed.
Getting involved
Contact sorear in #perl6 or via the sender address of
this mailing. Also check out the TODO file; whether you want to work
on stuff on it, or have cool ideas to add to it, both are good.
Jump to Line
Something went wrong with that request. Please try again.