Piers Cawley > Test-Class-Sugar-0.0400 > Test::Class::Sugar::Context

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NAME ^

Test::Class::Sugar::Context - Pay no attention to the class behind the curtain

DESCRIPTION ^

Test::Class::Sugar::Context does most of the heavy lifting for Test::Class::Sugar's parser. No user serviceable parts inside and all that.

However, if you're writing your own module using Devel::Declare and, like I was, you're looking at other D::D client modules to lift ideas from, then you probably want to take a look at the following selected methods:

looking_at($expected, $len)

Look at the unparsed buffer and returns true if it matches $expected. Given a $len argument, looking_at first makes sure that there are at least $len characters in the buffer.

get_buffer, set_buffer

Getters and setters. Like get_linestr and set_linestr but, rather than return the whole linestr, they only return the unparsed bit of it. If you too are sick of writing substr($ctx->get_linestr, $ctx->offset), then these are the methods for you.

alter_buffer(CODE)

It works like this:

    $ctx->alter_buffer(sub { s/bibble// }

Obvious no?

alter_buffer temporarily copies the buffer into $_, then calls the coderef you pass in, then writes the new value of $_ back into the buffer. It's not quite the same as having a fully mutable buffer, but it'll just have to serve.

extend_buffer

Grabs the next linestr and appends it to the buffer.

DIAGNOSTICS ^

Only kidding. Right now the diagnostics suck harder than a thing that sucks very hard indeed. One of these days I'll work out how to have a parser fail gracefully with meaningful diagnostics, but today is not that day.

BUGS AND LIMITATIONS ^

There's bound to be some. Patches welcome.

Please report any bugs or feature requests to me. It's unlikely you'll get any response if you use http://rt.cpan.org though. Your best course of action is to fork the project http://www.github.com/pdcawley/test-class-sugar, write at least one failing test (Write something in testclass form that should work, but doesn't. If you can arrange for it to fail gracefully, then please do, but if all you do is write something that blows up spectacularly, that's good too. Failing/exploding tests are like manna to a maintenance programmer.

AUTHOR ^

Piers Cawley <pdcawley@bofh.org.uk>

LICENCE AND COPYRIGHT ^

Copyright (c) 2009, Piers Cawley <pdcawley@bofh.org.uk>. All rights reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.

DISCLAIMER OF WARRANTY ^

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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