switch
can contain a default
clause for various reasons: to handle unexpected values, to show that all the cases were
properly considered, etc.
For readability purposes, to help a developer quickly spot the default behavior of a switch
statement, it is recommended to put the
default
clause at the beginning or the end of the switch
statement.
This rule raises an issue if the default
clause is not the first or the last one of the switch
's cases.
switch (param) {
case 0:
doSomething();
break;
default: // Noncompliant: default clause should be the first or last one
error();
break;
case 1:
doSomethingElse();
break;
}