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21 lines
361 B
Markdown
21 lines
361 B
Markdown
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# ExtensionRequirementViolation
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Emitted when a using class of a trait does not extend the class specified using `@psalm-require-extends`.
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```php
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<?php
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class A { }
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/**
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* @psalm-require-extends A
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*/
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trait T { }
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class B {
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// ExtensionRequirementViolation is emitted, as T requires
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// the using class B to extend A, which is not the case
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use T;
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}
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```
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