Nobody seems to have addressed the actual question, about the underlying reason for this being a mistake and how to avoid it.
Basically, you used the same method name in a derived class as is used in the base class, and that accidently overrides a function that just happens to have the same name but is used for a different purpose, takes different parameters, etc.
The first thing that comes to mind is to make sure all members are documented or follow a naming convention for "internal use" items. But, you can still hit that problem with an internal-use function! All methods that are called using the virtual dispatch mechanism, even those that are private, must be documented so a writer of a derived class is aware of them and will not re-use those names.
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- 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.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||