Having all branches of a switch
or if
chain with the same implementation indicates a problem.
In the following code:
if b == 0 { // Noncompliant
doOneMoreThing()
} else {
doOneMoreThing()
}
switch i { // Noncompliant
case 1:
doSomething()
case 2:
doSomething()
case 3:
doSomething()
default:
doSomething()
}
Either there is a copy-paste error that needs fixing or an unnecessary switch
or if
chain that should be removed.
Exceptions
This rule does not apply to if
chains without else
, nor to switch
without a default
clause.
if b == 0 { //no issue, this could have been done on purpose to make the code more readable
doSomething()
} else if b == 1 {
doSomething()
}