| 1 | <?php |
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| 20 | final class KeySet extends ArraySource |
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| 21 | { |
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| 22 | /** |
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| 23 | * {@inheritdoc} |
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| 24 | */ |
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| 25 | protected function name(): string |
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| 29 | |||
| 30 | /** |
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| 31 | * {@inheritdoc} |
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| 32 | */ |
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| 33 | protected function continueConfiguration(NodeDefinition $node) |
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| 43 | |||
| 44 | public function prepend(array $bundleConfig, string $path, ContainerBuilder $container) |
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| 55 | } |
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| 56 |
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 sub-classes 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 parent class: