Software Engineering Radio - the podcast for professional software developers7 Huhti 2007

Episode 52: DSL Development in Ruby

In this episode, we're talking to Obie Fernandez about agile DSL development in Ruby. We started our discussion by defining what a DSL is, the difference between internal and external DSLs as well as the importance of the flexibly syntax of the host language in order to make DSLs worthwhile. We then looked at a couple of real world examples for DSLs, specifically, at Business Natural Languages. We then progressed to the main part of the discussions, which centered around the features of Ruby that are important for building DSLs. These include the flexible handling of parentheses, symbols, blocks as well as literal arrays and hashes. We then discussed Ruby's meta programming feautures and how they are important for building DSLs: instantiation, method_missing callback, class macros, top level functions and sandboxing. Features like eval, class_eval, instance_eval and define_method are also important for DSLs in Ruby, as well as using alias_method for simple AOP.

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Jaksot(726)

Episode 5: Model-Driven Software Development Pt. 1

In this Episode, Eberhard and Markus provide an introduction to Model-Driven Software Development. Since the discussion turned out to be too long, we separated things into two episodes, thus Episode 6...

9 Helmi 200633min

Episode 4: Scripting Languages

In this Episode, Alexander and Markus talk about scripting languages. Topics include the definition of what a scripting language is, typical usage scenarios, performance issues, programming styles and...

1 Helmi 200637min

Episode 3: Interview Doug Schmidt

In this episode we talk with Doug Schmidt. Doug is a professor of computer science at Vanderbilt University and a well-respected authority in the fields of middleware, patterns and model-driven develo...

25 Tammi 200658min

Episode 2: Dependencies

Eberhard and Markus discuss the important topic of associations and dependencies in this show. While OO languages provide direct support for subtyping, most don't provide a first-class construct for o...

24 Tammi 200639min

Episode 1: Patterns

In this episode Michael and Markus talk about patterns. Starting with some of their "most used" patterns, they go into some detail about the history of patterns. They then discuss the various pattern ...

22 Tammi 200635min

Episode 0: About

This is the first episode (actually, episode zero) of software engineering radio. The episode does not contain real content, rather, Markus explains what the podcast is all about.

21 Tammi 20065min