I enjoyed the article and learned a few things. I was already familiar with Perl's GC, and the information there was clear and concise. Your explanation of the proxy design pattern was also nice coverage of the material.
Two things about the article really stood out. First, covering a very clear example of why you would want to create a circular reference. The standard $a = \$a while correct, doesn't explain the use a circular reference would have, and why to intentionally create one. Well done.
Second, and also greatly appreciated was the discussion of weaken. That 5.6 had introduced core support for handling circular refs was new to me, and the coverage of the feature there was clear, and a nice surprise. I haven't seen the 5.8.0 docs yet, but this material would all be very useful in perlreftut.
Light a man a fire, he's warm for a day. Catch a man on fire, and he's warm for the rest of his life. - Terry Pratchet
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
Outside of code tags, you may need to use entities for some characters:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||