| Conditions | 2 | 
| Paths | 2 | 
| Total Lines | 9 | 
| Code Lines | 6 | 
| Lines | 0 | 
| Ratio | 0 % | 
| Changes | 1 | ||
| Bugs | 0 | Features | 0 | 
| 1 | <?php | ||
| 23 | public function validate($value, Constraint $constraint) | ||
| 24 |     { | ||
| 25 |         $pattern = sprintf('#^php \s+ %s/console \s+#x', preg_quote($this->kernelDir)); | ||
| 26 |         if (!preg_match($pattern, $value, $matches)) { | ||
| 27 | $this->context->buildViolation($constraint->message) | ||
|  | |||
| 28 |                 ->setParameter('%string%', $value) | ||
| 29 | ->addViolation(); | ||
| 30 | } | ||
| 31 | } | ||
| 32 | } | ||
| 33 | 
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: