rector/rules/TypeDeclaration/Rector/ClassMethod/AddMethodCallBasedStrictPar...

124 lines
3.9 KiB
PHP

<?php
declare (strict_types=1);
namespace Rector\TypeDeclaration\Rector\ClassMethod;
use PhpParser\Node;
use PhpParser\Node\Name;
use PhpParser\Node\Stmt\Class_;
use PhpParser\Node\Stmt\ClassMethod;
use Rector\PhpParser\NodeFinder\LocalMethodCallFinder;
use Rector\Rector\AbstractRector;
use Rector\TypeDeclaration\NodeAnalyzer\CallTypesResolver;
use Rector\TypeDeclaration\NodeAnalyzer\ClassMethodParamTypeCompleter;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
/**
* @changelog https://github.com/symplify/phpstan-rules/blob/master/docs/rules_overview.md#checktypehintcallertyperule
*
* @see \Rector\Tests\TypeDeclaration\Rector\ClassMethod\AddMethodCallBasedStrictParamTypeRector\AddMethodCallBasedStrictParamTypeRectorTest
*/
final class AddMethodCallBasedStrictParamTypeRector extends AbstractRector
{
/**
* @readonly
* @var \Rector\TypeDeclaration\NodeAnalyzer\CallTypesResolver
*/
private $callTypesResolver;
/**
* @readonly
* @var \Rector\TypeDeclaration\NodeAnalyzer\ClassMethodParamTypeCompleter
*/
private $classMethodParamTypeCompleter;
/**
* @readonly
* @var \Rector\PhpParser\NodeFinder\LocalMethodCallFinder
*/
private $localMethodCallFinder;
/**
* @var int
*/
private const MAX_UNION_TYPES = 3;
public function __construct(CallTypesResolver $callTypesResolver, ClassMethodParamTypeCompleter $classMethodParamTypeCompleter, LocalMethodCallFinder $localMethodCallFinder)
{
$this->callTypesResolver = $callTypesResolver;
$this->classMethodParamTypeCompleter = $classMethodParamTypeCompleter;
$this->localMethodCallFinder = $localMethodCallFinder;
}
public function getRuleDefinition() : RuleDefinition
{
return new RuleDefinition('Change private method param type to strict type, based on passed strict types', [new CodeSample(<<<'CODE_SAMPLE'
final class SomeClass
{
public function run(int $value)
{
$this->resolve($value);
}
private function resolve($value)
{
}
}
CODE_SAMPLE
, <<<'CODE_SAMPLE'
final class SomeClass
{
public function run(int $value)
{
$this->resolve($value);
}
private function resolve(int $value)
{
}
}
CODE_SAMPLE
)]);
}
/**
* @return array<class-string<Node>>
*/
public function getNodeTypes() : array
{
return [Class_::class];
}
/**
* @param Class_ $node
*/
public function refactor(Node $node) : ?Node
{
$hasChanged = \false;
foreach ($node->getMethods() as $classMethod) {
if ($classMethod->params === []) {
continue;
}
if (!$this->isClassMethodPrivate($node, $classMethod)) {
continue;
}
if ($classMethod->isPublic()) {
continue;
}
$methodCalls = $this->localMethodCallFinder->match($node, $classMethod);
$classMethodParameterTypes = $this->callTypesResolver->resolveStrictTypesFromCalls($methodCalls);
$classMethod = $this->classMethodParamTypeCompleter->complete($classMethod, $classMethodParameterTypes, self::MAX_UNION_TYPES);
if ($classMethod instanceof ClassMethod) {
$hasChanged = \true;
}
}
if ($hasChanged) {
return $node;
}
return null;
}
private function isClassMethodPrivate(Class_ $class, ClassMethod $classMethod) : bool
{
if ($classMethod->isPrivate()) {
return \true;
}
if ($classMethod->isFinal() && !$class->extends instanceof Name && $class->implements === []) {
return \true;
}
return $class->isFinal() && !$class->extends instanceof Name && $class->implements === [] && $classMethod->isProtected();
}
}