classConstManipulator = $classConstManipulator;
$this->reflectionResolver = $reflectionResolver;
}
public function getRuleDefinition() : RuleDefinition
{
return new RuleDefinition('Remove unused class constants', [new CodeSample(<<<'CODE_SAMPLE'
class SomeClass
{
private const SOME_CONST = 'dead';
public function run()
{
}
}
CODE_SAMPLE
, <<<'CODE_SAMPLE'
class SomeClass
{
public function run()
{
}
}
CODE_SAMPLE
)]);
}
/**
* @return array>
*/
public function getNodeTypes() : array
{
return [ClassConst::class];
}
/**
* @param ClassConst $node
*/
public function refactorWithScope(Node $node, Scope $scope) : ?int
{
if ($this->shouldSkipClassConst($node, $scope)) {
return null;
}
$classReflection = $this->reflectionResolver->resolveClassReflection($node);
if (!$classReflection instanceof ClassReflection) {
return null;
}
if ($this->classConstManipulator->hasClassConstFetch($node, $classReflection)) {
return null;
}
return NodeTraverser::REMOVE_NODE;
}
private function shouldSkipClassConst(ClassConst $classConst, Scope $scope) : bool
{
if (!$classConst->isPrivate()) {
return \true;
}
if (\count($classConst->consts) !== 1) {
return \true;
}
$classReflection = $scope->getClassReflection();
if (!$classReflection instanceof ClassReflection) {
return \false;
}
return $this->hasParentClassOfEnumSuffix($classReflection);
}
private function hasParentClassOfEnumSuffix(ClassReflection $classReflection) : bool
{
foreach ($classReflection->getParentClassesNames() as $parentClassesName) {
if (\substr_compare($parentClassesName, 'Enum', -\strlen('Enum')) === 0) {
return \true;
}
}
return \false;
}
}