rspec/rules/S131/apex/rule.adoc

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== Why is this an issue?
The requirement for a final ``++when else++`` clause is defensive programming. The clause should either take appropriate action, or contain a suitable comment as to why no action is taken.
=== Noncompliant code example
[source,apex]
----
switch on i { // missing 'when else'
when 2 {
System.debug('when block 2');
}
when -3 {
System.debug('when block -3');
}
}
----
=== Compliant solution
[source,apex]
----
switch on i {
when 2 {
System.debug('when block 2');
}
when -3 {
System.debug('when block -3');
}
when else {
System.debug('default');
}
}
----
include::../see.adoc[]
ifdef::env-github,rspecator-view[]
'''
== Implementation Specification
(visible only on this page)
include::../message.adoc[]
'''
== Comments And Links
(visible only on this page)
include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]