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Announce: Niecza Perl 6 v18

From:
Stefan O'Rear
Date:
May 28, 2012 20:33
Subject:
Announce: Niecza Perl 6 v18
Message ID:
20120529032452.GA13021@localhost.localdomain

    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 @.foo }).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 irc.freenode.net #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.


[1] http://host02.appflux.net/niecza/niecza-18.zip
[2] https://github.com/sorear/niecza




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