Sha256: 261bfcad1d5936ce62361f70daeeee0bcba016bede426fbe7b7c8798ade85240
Contents?: true
Size: 1.25 KB
Versions: 17
Compression:
Stored size: 1.25 KB
Contents
# Control Couple ## Introduction Control coupling occurs when a method or block checks the value of a parameter in order to decide which execution path to take. The offending parameter is often called a `Control Couple`. Control Coupling is a kind of duplication, because the calling method already knows which path should be taken. Control Coupling reduces the code's flexibility by creating a dependency between the caller and callee: any change to the possible values of the controlling parameter must be reflected on both sides of the call. A `Control Couple` also reveals a loss of simplicity: the called method probably has more than one responsibility, because it includes at least two different code paths. You can find a good write-up regarding this problem [here](http://solnic.eu/2012/04/11/get-rid-of-that-code-smell-control-couple.html). ## Current Support in Reek Reek warns about control coupling when: * [Control-Parameter](Control-Parameter.md) - a method parameter or block parameter is the tested value in a conditional statement (as in the example below); or * [Boolean-Parameter](Boolean-Parameter.md) - a method parameter is defaulted to `true` or `false`. ## Configuration Control Couple supports the [Basic Smell Options](Basic-Smell-Options.md).
Version data entries
17 entries across 17 versions & 1 rubygems