Exploring Extreme Programming
When a “raw” type appears in a protocol, it encourages it to spread all over. Recently, I needed to encapsulate a type: I had used “array of integer” ([Int]) in a number of places, and I wanted to change this Continue reading Refactor: Change Signature on a Protocol [Interface]
For most problems, we have a choice: implement current needs only, or generalize the solution to more easily handle variations we expect to need in the future. The evolutionary design community refers to the latter approach as speculative generality, and Continue reading Speculative Generality
In building a cache for the SortTables™ data viewer, I ran across three hidden things. An LRU Cache I want to view data sets that are larger than memory, so I developed a cache that gets rid of the Least Continue reading Programming: Using What’s Hidden
TDD with a user interface (UI) is a challenge: you have to decide which parts to test. Recently, Ted Young has been using the Yacht dice game (the root of the commercial game Yahtzee) as a testbed for TDD with Continue reading TDD & GUI in Swift
“Sufficient Completeness” is a characteristic of specifications, from the theory of abstract data types. It can help guide our testing. One way of looking at objects is to consider the history of what has happened to them: the sequence of Continue reading Sufficient Completeness and TDD
Japanese Inn. By Oliver Statler. This book tells the story of Minaguchi-ya, a (real) inn on the road between Kyoto and Tokyo, the old capital and the new. It ranges from 1569 to the 1950s. Each chapter tells about the Continue reading Review: Japanese Inn
The Color of Law: A Forgotten History of How Our Government Segregated America. By Richard Rothstein. One interpretation of segregation goes like this: Blacks in the 20th century were treated as second-class citizens, but segregation was not because of the Continue reading Review: The Color of Law
Le Ton beau de Marot, by Douglas Hofstadter. Hofstadter explores “What does it mean to translate?” with dozens of versions of the French poem “A une Damoyselle malady” by Marot. Some try to capture the meaning, others the poetry, others Continue reading Review – Le Ton beau de Marot, by Hofstadter
This post summarizes the material on xp123.com related to refactoring in Swift. Swift Refactorings Divide Class into Class + Extension Extract Protocol Other Refactoring-Related Material Refactoring – articles tagged on xp123.com Resources on Refactoring – pointers to other sites’ materials
Context: You have a class that implements one or more protocols. The class has become long, and it’s confusing to understand what parts are there for the protocols, and what parts are for the class’ internal needs. Solution: Divide the Continue reading Divide Class into Class + Extension (Swift Refactoring)