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20 lines
442 B
Markdown
20 lines
442 B
Markdown
# MissingImmutableAnnotation
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Emitted when a class inheriting from an immutable interface or class does not also have a `@psalm-immutable` declaration
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```php
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<?php
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/** @psalm-immutable */
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interface SomethingImmutable {
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public function someInteger() : int;
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}
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class MutableImplementation implements SomethingImmutable {
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private int $counter = 0;
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public function someInteger() : int {
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return ++$this->counter;
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}
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}
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```
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