rector/vendor/rector/rector-downgrade-php/src/PhpDocDecorator/PhpDocFromTypeDeclarationDe...

252 lines
10 KiB
PHP

<?php
declare (strict_types=1);
namespace Rector\PhpDocDecorator;
use PhpParser\Node\ComplexType;
use PhpParser\Node\Expr\ArrowFunction;
use PhpParser\Node\Expr\Closure;
use PhpParser\Node\Identifier;
use PhpParser\Node\Name;
use PhpParser\Node\Param;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Function_;
use PHPStan\PhpDocParser\Ast\PhpDoc\ReturnTagValueNode;
use PHPStan\Reflection\ClassReflection;
use PHPStan\Type\ObjectType;
use PHPStan\Type\ThisType;
use PHPStan\Type\Type;
use PHPStan\Type\TypeCombinator;
use PHPStan\Type\UnionType;
use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
use Rector\BetterPhpDocParser\PhpDocManipulator\PhpDocTypeChanger;
use Rector\Core\Php\PhpVersionProvider;
use Rector\Core\Reflection\ReflectionResolver;
use Rector\Core\ValueObject\PhpVersionFeature;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\Php80\NodeAnalyzer\PhpAttributeAnalyzer;
use Rector\PhpAttribute\NodeFactory\PhpAttributeGroupFactory;
use Rector\PHPStanStaticTypeMapper\Enum\TypeKind;
use Rector\StaticTypeMapper\StaticTypeMapper;
use Rector\StaticTypeMapper\ValueObject\Type\SelfStaticType;
use Rector\ValueObject\ClassMethodWillChangeReturnType;
/**
* @see https://wiki.php.net/rfc/internal_method_return_types#proposal
*/
final class PhpDocFromTypeDeclarationDecorator
{
/**
* @readonly
* @var \Rector\StaticTypeMapper\StaticTypeMapper
*/
private $staticTypeMapper;
/**
* @readonly
* @var \Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory
*/
private $phpDocInfoFactory;
/**
* @readonly
* @var \Rector\NodeNameResolver\NodeNameResolver
*/
private $nodeNameResolver;
/**
* @readonly
* @var \Rector\BetterPhpDocParser\PhpDocManipulator\PhpDocTypeChanger
*/
private $phpDocTypeChanger;
/**
* @readonly
* @var \Rector\PhpAttribute\NodeFactory\PhpAttributeGroupFactory
*/
private $phpAttributeGroupFactory;
/**
* @readonly
* @var \Rector\Core\Reflection\ReflectionResolver
*/
private $reflectionResolver;
/**
* @readonly
* @var \Rector\Php80\NodeAnalyzer\PhpAttributeAnalyzer
*/
private $phpAttributeAnalyzer;
/**
* @readonly
* @var \Rector\Core\Php\PhpVersionProvider
*/
private $phpVersionProvider;
/**
* @var ClassMethodWillChangeReturnType[]
*/
private $classMethodWillChangeReturnTypes = [];
public function __construct(StaticTypeMapper $staticTypeMapper, PhpDocInfoFactory $phpDocInfoFactory, NodeNameResolver $nodeNameResolver, PhpDocTypeChanger $phpDocTypeChanger, PhpAttributeGroupFactory $phpAttributeGroupFactory, ReflectionResolver $reflectionResolver, PhpAttributeAnalyzer $phpAttributeAnalyzer, PhpVersionProvider $phpVersionProvider)
{
$this->staticTypeMapper = $staticTypeMapper;
$this->phpDocInfoFactory = $phpDocInfoFactory;
$this->nodeNameResolver = $nodeNameResolver;
$this->phpDocTypeChanger = $phpDocTypeChanger;
$this->phpAttributeGroupFactory = $phpAttributeGroupFactory;
$this->reflectionResolver = $reflectionResolver;
$this->phpAttributeAnalyzer = $phpAttributeAnalyzer;
$this->phpVersionProvider = $phpVersionProvider;
$this->classMethodWillChangeReturnTypes = [
// @todo how to make list complete? is the method list needed or can we use just class names?
new ClassMethodWillChangeReturnType('ArrayAccess', 'offsetGet'),
new ClassMethodWillChangeReturnType('ArrayAccess', 'getIterator'),
];
}
/**
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure|\PhpParser\Node\Expr\ArrowFunction $functionLike
*/
public function decorateReturn($functionLike) : void
{
if ($functionLike->returnType === null) {
return;
}
$phpDocInfo = $this->phpDocInfoFactory->createFromNodeOrEmpty($functionLike);
$returnTagValueNode = $phpDocInfo->getReturnTagValue();
$returnType = $returnTagValueNode instanceof ReturnTagValueNode ? $this->staticTypeMapper->mapPHPStanPhpDocTypeToPHPStanType($returnTagValueNode, $functionLike->returnType) : $this->staticTypeMapper->mapPhpParserNodePHPStanType($functionLike->returnType);
// if nullable is supported, downgrade to that one
if ($this->isNullableSupportedAndPossible($returnType)) {
$functionLike->returnType = $this->staticTypeMapper->mapPHPStanTypeToPhpParserNode($returnType, TypeKind::RETURN);
return;
}
$this->phpDocTypeChanger->changeReturnType($functionLike, $phpDocInfo, $returnType);
$functionLike->returnType = null;
if (!$functionLike instanceof ClassMethod) {
return;
}
$classReflection = $this->reflectionResolver->resolveClassReflection($functionLike);
if (!$classReflection instanceof ClassReflection || !$classReflection->isInterface() && !$classReflection->isClass()) {
return;
}
if (!$this->isRequireReturnTypeWillChange($classReflection, $functionLike)) {
return;
}
$functionLike->attrGroups[] = $this->phpAttributeGroupFactory->createFromClass('ReturnTypeWillChange');
}
/**
* @param array<class-string<Type>> $requiredTypes
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure|\PhpParser\Node\Expr\ArrowFunction $functionLike
*/
public function decorateParam(Param $param, $functionLike, array $requiredTypes) : void
{
if ($param->type === null) {
return;
}
$type = $this->staticTypeMapper->mapPhpParserNodePHPStanType($param->type);
if (!$this->isMatchingType($type, $requiredTypes)) {
return;
}
if ($this->isNullableSupportedAndPossible($type)) {
$param->type = $this->staticTypeMapper->mapPHPStanTypeToPhpParserNode($type, TypeKind::PARAM);
return;
}
$this->moveParamTypeToParamDoc($functionLike, $param, $type);
}
/**
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure|\PhpParser\Node\Expr\ArrowFunction $functionLike
*/
public function decorateParamWithSpecificType(Param $param, $functionLike, Type $requireType) : bool
{
if ($param->type === null) {
return \false;
}
if (!$this->isTypeMatch($param->type, $requireType)) {
return \false;
}
$type = $this->staticTypeMapper->mapPhpParserNodePHPStanType($param->type);
if ($this->isNullableSupportedAndPossible($type)) {
$param->type = $this->staticTypeMapper->mapPHPStanTypeToPhpParserNode($type, TypeKind::PARAM);
return \true;
}
$this->moveParamTypeToParamDoc($functionLike, $param, $type);
return \true;
}
/**
* @return bool True if node was changed
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure|\PhpParser\Node\Expr\ArrowFunction $functionLike
*/
public function decorateReturnWithSpecificType($functionLike, Type $requireType) : bool
{
if ($functionLike->returnType === null) {
return \false;
}
if (!$this->isTypeMatch($functionLike->returnType, $requireType)) {
return \false;
}
$this->decorateReturn($functionLike);
return \true;
}
private function isRequireReturnTypeWillChange(ClassReflection $classReflection, ClassMethod $classMethod) : bool
{
if ($classReflection->isAnonymous()) {
return \false;
}
$methodName = $classMethod->name->toString();
// support for will return change type in case of removed return doc type
// @see https://php.watch/versions/8.1/ReturnTypeWillChange
foreach ($this->classMethodWillChangeReturnTypes as $classMethodWillChangeReturnType) {
if ($classMethodWillChangeReturnType->getMethodName() !== $methodName) {
continue;
}
if (!$classReflection->isSubclassOf($classMethodWillChangeReturnType->getClassName())) {
continue;
}
if ($this->phpAttributeAnalyzer->hasPhpAttribute($classMethod, 'ReturnTypeWillChange')) {
continue;
}
return \true;
}
return \false;
}
/**
* @param \PhpParser\Node\ComplexType|\PhpParser\Node\Identifier|\PhpParser\Node\Name $typeNode
*/
private function isTypeMatch($typeNode, Type $requireType) : bool
{
$returnType = $this->staticTypeMapper->mapPhpParserNodePHPStanType($typeNode);
if ($returnType instanceof SelfStaticType) {
$returnType = new ThisType($returnType->getClassReflection());
}
// cover nullable union types
if ($returnType instanceof UnionType) {
$returnType = TypeCombinator::removeNull($returnType);
}
if ($returnType instanceof ObjectType) {
return $returnType->equals($requireType);
}
return \get_class($returnType) === \get_class($requireType);
}
/**
* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\Closure|\PhpParser\Node\Expr\ArrowFunction $functionLike
*/
private function moveParamTypeToParamDoc($functionLike, Param $param, Type $type) : void
{
$phpDocInfo = $this->phpDocInfoFactory->createFromNodeOrEmpty($functionLike);
$paramName = $this->nodeNameResolver->getName($param);
$this->phpDocTypeChanger->changeParamType($functionLike, $phpDocInfo, $type, $param, $paramName);
$param->type = null;
}
/**
* @param array<class-string<Type>> $requiredTypes
*/
private function isMatchingType(Type $type, array $requiredTypes) : bool
{
return \in_array(\get_class($type), $requiredTypes, \true);
}
private function isNullableSupportedAndPossible(Type $type) : bool
{
if (!$this->phpVersionProvider->isAtLeastPhpVersion(PhpVersionFeature::NULLABLE_TYPE)) {
return \false;
}
if (!$type instanceof UnionType) {
return \false;
}
if (\count($type->getTypes()) !== 2) {
return \false;
}
return TypeCombinator::containsNull($type);
}
}