To a large extent, statically typed languages are all about sprinkling simple tests throughout our code
I'm going to have to take you to task for that oversimplification later :-)
Separating a contract from its class is an interesting idea, and one that's been on my "think about" pile for a couple of years now. For example, it allows you to retrofit contracts onto an existing codebase - something that's non-trivial with Class::Contract.
Some food for thought:
- For any wrapping of functionality around subroutines Hook::Lexwrap is your friend since you can easily scope the change.
- For another perspective, consider the contract as an aspect (in the AOP sense) and apply it to classes with the Aspect module.
- A big problem for DBC in "normal" perl is that there are so many ways to break encapsulation - so you can violate the class invarients in code external to the package. See Fun with Hook::LexWrap and code instrumentation for one possible idea on how to approach this.
- If you've not done it already, go and ready Meyer's Object-oriented Software Construction which goes into the whole DBC deal in depth.
I need to go finish my comments on the evil that is SWEBOK before midnight - maybe some more constructive comments later :-)
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|