mirror of https://github.com/rectorphp/rector.git
146 lines
4.6 KiB
PHP
146 lines
4.6 KiB
PHP
<?php
|
|
|
|
declare (strict_types=1);
|
|
namespace Rector\DeadCode\Rector\ClassMethod;
|
|
|
|
use PhpParser\Node;
|
|
use PhpParser\Node\Expr\Variable;
|
|
use PhpParser\Node\Stmt\Class_;
|
|
use PhpParser\Node\Stmt\ClassMethod;
|
|
use PhpParser\Node\Stmt\TraitUse;
|
|
use PHPStan\Analyser\Scope;
|
|
use Rector\Core\PhpParser\NodeFinder\PropertyFetchFinder;
|
|
use Rector\Core\Rector\AbstractScopeAwareRector;
|
|
use Rector\Core\ValueObject\MethodName;
|
|
use Rector\Core\ValueObject\PhpVersionFeature;
|
|
use Rector\Core\ValueObject\Visibility;
|
|
use Rector\DeadCode\NodeAnalyzer\PropertyWriteonlyAnalyzer;
|
|
use Rector\Privatization\NodeManipulator\VisibilityManipulator;
|
|
use Rector\VersionBonding\Contract\MinPhpVersionInterface;
|
|
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
|
|
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
|
|
/**
|
|
* @see \Rector\Tests\DeadCode\Rector\ClassMethod\RemoveUnusedPromotedPropertyRector\RemoveUnusedPromotedPropertyRectorTest
|
|
*/
|
|
final class RemoveUnusedPromotedPropertyRector extends AbstractScopeAwareRector implements MinPhpVersionInterface
|
|
{
|
|
/**
|
|
* @readonly
|
|
* @var \Rector\Core\PhpParser\NodeFinder\PropertyFetchFinder
|
|
*/
|
|
private $propertyFetchFinder;
|
|
/**
|
|
* @readonly
|
|
* @var \Rector\Privatization\NodeManipulator\VisibilityManipulator
|
|
*/
|
|
private $visibilityManipulator;
|
|
/**
|
|
* @readonly
|
|
* @var \Rector\DeadCode\NodeAnalyzer\PropertyWriteonlyAnalyzer
|
|
*/
|
|
private $propertyWriteonlyAnalyzer;
|
|
public function __construct(PropertyFetchFinder $propertyFetchFinder, VisibilityManipulator $visibilityManipulator, PropertyWriteonlyAnalyzer $propertyWriteonlyAnalyzer)
|
|
{
|
|
$this->propertyFetchFinder = $propertyFetchFinder;
|
|
$this->visibilityManipulator = $visibilityManipulator;
|
|
$this->propertyWriteonlyAnalyzer = $propertyWriteonlyAnalyzer;
|
|
}
|
|
public function getRuleDefinition() : RuleDefinition
|
|
{
|
|
return new RuleDefinition('Remove unused promoted property', [new CodeSample(<<<'CODE_SAMPLE'
|
|
class SomeClass
|
|
{
|
|
public function __construct(
|
|
private $someUnusedDependency,
|
|
private $usedDependency
|
|
) {
|
|
}
|
|
|
|
public function getUsedDependency()
|
|
{
|
|
return $this->usedDependency;
|
|
}
|
|
}
|
|
CODE_SAMPLE
|
|
, <<<'CODE_SAMPLE'
|
|
class SomeClass
|
|
{
|
|
public function __construct(
|
|
private $usedDependency
|
|
) {
|
|
}
|
|
|
|
public function getUsedDependency()
|
|
{
|
|
return $this->usedDependency;
|
|
}
|
|
}
|
|
CODE_SAMPLE
|
|
)]);
|
|
}
|
|
/**
|
|
* @return array<class-string<Node>>
|
|
*/
|
|
public function getNodeTypes() : array
|
|
{
|
|
return [Class_::class];
|
|
}
|
|
/**
|
|
* @param Class_ $node
|
|
*/
|
|
public function refactorWithScope(Node $node, Scope $scope) : ?Node
|
|
{
|
|
$constructClassMethod = $node->getMethod(MethodName::CONSTRUCT);
|
|
if (!$constructClassMethod instanceof ClassMethod) {
|
|
return null;
|
|
}
|
|
if ($this->shouldSkipClass($node)) {
|
|
return null;
|
|
}
|
|
$hasChanged = \false;
|
|
foreach ($constructClassMethod->params as $key => $param) {
|
|
// only private local scope; removing public property might be dangerous
|
|
if (!$this->visibilityManipulator->hasVisibility($param, Visibility::PRIVATE)) {
|
|
continue;
|
|
}
|
|
$paramName = $this->getName($param);
|
|
$propertyFetches = $this->propertyFetchFinder->findLocalPropertyFetchesByName($node, $paramName);
|
|
if ($propertyFetches !== []) {
|
|
continue;
|
|
}
|
|
if (!$this->propertyWriteonlyAnalyzer->arePropertyFetchesExclusivelyBeingAssignedTo($propertyFetches)) {
|
|
continue;
|
|
}
|
|
// is variable used? only remove property, keep param
|
|
$variable = $this->betterNodeFinder->findVariableOfName((array) $constructClassMethod->stmts, $paramName);
|
|
if ($variable instanceof Variable) {
|
|
$param->flags = 0;
|
|
continue;
|
|
}
|
|
// remove param
|
|
unset($constructClassMethod->params[$key]);
|
|
$hasChanged = \true;
|
|
}
|
|
if ($hasChanged) {
|
|
return $node;
|
|
}
|
|
return null;
|
|
}
|
|
public function provideMinPhpVersion() : int
|
|
{
|
|
return PhpVersionFeature::PROPERTY_PROMOTION;
|
|
}
|
|
private function shouldSkipClass(Class_ $class) : bool
|
|
{
|
|
if ($class->attrGroups !== []) {
|
|
return \true;
|
|
}
|
|
foreach ($class->stmts as $stmt) {
|
|
if ($stmt instanceof TraitUse) {
|
|
return \true;
|
|
}
|
|
}
|
|
return \false;
|
|
}
|
|
}
|