ScriptingWeb

Advancing in Ruby

When I started looking seriously at Rails internal code, I soon realized that what I had learnt during my first months of Ruby was simply inadequate to even begin to understand the internal organization of Rails (and probably of any Ruby-based domain specific language).

This section of the site reflects the subsequent work that I began in Ruby.

The book of D.Black was extraordinarily useful as an introduction to some of these subjects; whenever possible, I follow the same terminology that he uses. The following topics are discussed:

• lambdas, Proc and closures (in general, what D. Black calls callable objects)
• defining iterators for custom collections
• binary trees, exploring alternatives to recursion (topic unrelated to Rails)
• eval methods [to be done]
• dynamic generation of methods
• callbacks