#fuck-typing

• Fuck Typing LWP

  https://justatheory.com/2010/05/fuck-typing-lwp

  I’m working on a project that fetches various files from the Internet via LWP. I wanted to make sure that I was a polite user, such that my app would pay attention to Last-Modified/If-Modified-Since and ETag/If-None-Match headers. And in most contexts I also want to respect the robots.txt file on the hosts to which I’m sending requests. So I was very interested to read chromatic’s hack for this very issue. I happily implemented two classes for my app, MyApp::UA, which inherits from LWP::UserAgent::WithCache, and MyApp::UA::Robot, which inherits from MyApp::UA but changes LWP::UserAgent::WithCache to inherit from LWP::UARobot:

  Indexed 8/29/2025

• Fuck Typing

  https://justatheory.com/2009/05/fuck-typing

  chromatic’s post on Perl Roles reminded me that I’ve wanted for some time to blog about another kind of composition. I call it “fuck typing.” It’s kind of like duck typing, only not really. I would explain, but I think that my good friend, Mr. Vinnie Goombatz, will do a much better job. Although if you’re squeamish or easily offended, you might want to skip it.

  Indexed 2/28/2026