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Building Maintainable Software, C# Edition: Ten Guidelines by Joost Visser, Sylvan Rigal, Gijs Wijnholds, Pascal van Eck,

By Joost Visser, Sylvan Rigal, Gijs Wijnholds, Pascal van Eck, Rob van der Leek

Have you ever felt pissed off operating with anyone else’s code? Difficult-to-maintain resource code is a giant challenge in software program improvement this present day, resulting in high priced delays and defects. join the answer. With this sensible booklet, you’ll research 10 easy-to-follow guidance for supplying C# software program that’s effortless to keep up and adapt. those guidance were derived from examining countless numbers of real-world systems.

Written by means of specialists from the software program development workforce (SIG), this e-book presents transparent and concise causes, with recommendation for turning the information into perform. Examples for this version are written in C#, whereas our significant other Java publication offers transparent examples in that language.

  • Write brief devices of code: restrict the size of tools and constructors
  • Write easy devices of code: restrict the variety of department issues in keeping with method
  • Write code as soon as, instead of possibility copying buggy code
  • Keep unit interfaces small via extracting parameters into objects
  • Separate matters to prevent development huge classes
  • Couple structure parts loosely
  • Balance the quantity and dimension of top-level elements on your code
  • Keep your codebase as small as possible
  • Automate checks to your codebase
  • Write fresh code, averting "code smells" that point out deeper problems

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Extra info for Building Maintainable Software, C# Edition: Ten Guidelines for Future-Proof Code

Example text

Such objections are discussed next. info it is natural to think that the domain’s complexity carries over to the implementation, and that this is an unavoidable fact of life. We argue against this common interpretation. Complexity in the domain does not require the technical implementation to be complex as well. In fact, it is your respon‐ sibility as a developer to simplify problems such that they lead to simple code. Even if the system as a whole performs complex functionality, it does not mean that units on the lowest level should be complex as well.

Table 2-1. 6% of all units) are longer. This shows that it is very possible in practice to write short units—at least for a vast majority of units. Agree on formatting conventions in your team. Keep units short and comply with these conventions. ” Sometimes, splitting a method is indeed difficult. Take, for instance, a properly for‐ matted switch statement in C#. For each case of the switch statement, there is a line for the case itself, at least one line to do anything useful, and a line for the break statement.

The cyclomatic (McCabe) complexity of a unit is at least one, which is easy to understand as follows. Consider a unit with no branch points. According to the definition, its cyclomatic complexity is one (number of branch points plus one). It also fits intuitively: a unit with no branch points has one execution path, and needs at least one test. For the sake of completeness: only for units with one exit point, the cyclomatic or McCabe complexity is equal to the number of branch points plus one. It becomes more complex for units with more than one exit point.

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