Symfony Profiler

<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\PropertyInfo\Extractor;
use PHPStan\PhpDocParser\Ast\PhpDoc\InvalidTagValueNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\ParamTagValueNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocTagNode;
use PHPStan\PhpDocParser\Lexer\Lexer;
use PHPStan\PhpDocParser\Parser\ConstExprParser;
use PHPStan\PhpDocParser\Parser\PhpDocParser;
use PHPStan\PhpDocParser\Parser\TokenIterator;
use PHPStan\PhpDocParser\Parser\TypeParser;
use Symfony\Component\PropertyInfo\PhpStan\NameScopeFactory;
use Symfony\Component\PropertyInfo\PropertyTypeExtractorInterface;
use Symfony\Component\PropertyInfo\Type;
use Symfony\Component\PropertyInfo\Util\PhpStanTypeHelper;
/**
* Extracts data using PHPStan parser.
*
* @author Baptiste Leduc <baptiste.leduc@gmail.com>
*/
final class PhpStanExtractor implements PropertyTypeExtractorInterface, ConstructorArgumentTypeExtractorInterface
{
private const PROPERTY = 0;
private const ACCESSOR = 1;
private const MUTATOR = 2;
/** @var PhpDocParser */
private $phpDocParser;
/** @var Lexer */
private $lexer;
/** @var NameScopeFactory */
private $nameScopeFactory;
/** @var array<string, array{PhpDocNode|null, int|null, string|null, string|null}> */
private $docBlocks = [];
private $phpStanTypeHelper;
private $mutatorPrefixes;
private $accessorPrefixes;
private $arrayMutatorPrefixes;
/**
* @param list<string>|null $mutatorPrefixes
* @param list<string>|null $accessorPrefixes
* @param list<string>|null $arrayMutatorPrefixes
*/
public function __construct(array $mutatorPrefixes = null, array $accessorPrefixes = null, array $arrayMutatorPrefixes = null)
{
$this->phpStanTypeHelper = new PhpStanTypeHelper();
$this->mutatorPrefixes = $mutatorPrefixes ?? ReflectionExtractor::$defaultMutatorPrefixes;
$this->accessorPrefixes = $accessorPrefixes ?? ReflectionExtractor::$defaultAccessorPrefixes;
$this->arrayMutatorPrefixes = $arrayMutatorPrefixes ?? ReflectionExtractor::$defaultArrayMutatorPrefixes;
$this->phpDocParser = new PhpDocParser(new TypeParser(new ConstExprParser()), new ConstExprParser());
$this->lexer = new Lexer();
$this->nameScopeFactory = new NameScopeFactory();
}
public function getTypes(string $class, string $property, array $context = []): ?array
{
/** @var PhpDocNode|null $docNode */
[$docNode, $source, $prefix, $declaringClass] = $this->getDocBlock($class, $property);
$nameScope = $this->nameScopeFactory->create($class, $declaringClass);
if (null === $docNode) {
return null;
}
switch ($source) {
case self::PROPERTY:
$tag = '@var';
break;
case self::ACCESSOR:
$tag = '@return';
break;
case self::MUTATOR:
$tag = '@param';
break;
}
$parentClass = null;
$types = [];
foreach ($docNode->getTagsByName($tag) as $tagDocNode) {
if ($tagDocNode->value instanceof InvalidTagValueNode) {
continue;
}
if (
$tagDocNode->value instanceof ParamTagValueNode
&& null === $prefix
&& $tagDocNode->value->parameterName !== '$'.$property
) {
continue;
}
foreach ($this->phpStanTypeHelper->getTypes($tagDocNode->value, $nameScope) as $type) {
switch ($type->getClassName()) {
case 'self':
case 'static':
$resolvedClass = $class;
break;
case 'parent':
if (false !== $resolvedClass = $parentClass ??= get_parent_class($class)) {
break;
}
// no break
default:
$types[] = $type;
continue 2;
}
$types[] = new Type(Type::BUILTIN_TYPE_OBJECT, $type->isNullable(), $resolvedClass, $type->isCollection(), $type->getCollectionKeyTypes(), $type->getCollectionValueTypes());
}
}
if (!isset($types[0])) {
return null;
}
if (!\in_array($prefix, $this->arrayMutatorPrefixes, true)) {
return $types;
}
return [new Type(Type::BUILTIN_TYPE_ARRAY, false, null, true, new Type(Type::BUILTIN_TYPE_INT), $types[0])];
}
public function getTypesFromConstructor(string $class, string $property): ?array
{
if (null === $tagDocNode = $this->getDocBlockFromConstructor($class, $property)) {
return null;
}
$types = [];
foreach ($this->phpStanTypeHelper->getTypes($tagDocNode, $this->nameScopeFactory->create($class)) as $type) {
$types[] = $type;
}
if (!isset($types[0])) {
return null;
}
return $types;
}
private function getDocBlockFromConstructor(string $class, string $property): ?ParamTagValueNode
{
try {
$reflectionClass = new \ReflectionClass($class);
} catch (\ReflectionException) {
return null;
}
if (null === $reflectionConstructor = $reflectionClass->getConstructor()) {
return null;
}
$rawDocNode = $reflectionConstructor->getDocComment();
$tokens = new TokenIterator($this->lexer->tokenize($rawDocNode));
$phpDocNode = $this->phpDocParser->parse($tokens);
$tokens->consumeTokenType(Lexer::TOKEN_END);
return $this->filterDocBlockParams($phpDocNode, $property);
}
private function filterDocBlockParams(PhpDocNode $docNode, string $allowedParam): ?ParamTagValueNode
{
$tags = array_values(array_filter($docNode->getTagsByName('@param'), function ($tagNode) use ($allowedParam) {
return $tagNode instanceof PhpDocTagNode && ('$'.$allowedParam) === $tagNode->value->parameterName;
}));
if (!$tags) {
return null;
}
return $tags[0]->value;
}
/**
* @return array{PhpDocNode|null, int|null, string|null, string|null}
*/
private function getDocBlock(string $class, string $property): array
{
$propertyHash = $class.'::'.$property;
if (isset($this->docBlocks[$propertyHash])) {
return $this->docBlocks[$propertyHash];
}
$ucFirstProperty = ucfirst($property);
if ([$docBlock, $source, $declaringClass] = $this->getDocBlockFromProperty($class, $property)) {
$data = [$docBlock, $source, null, $declaringClass];
} elseif ([$docBlock, $_, $declaringClass] = $this->getDocBlockFromMethod($class, $ucFirstProperty, self::ACCESSOR)) {
$data = [$docBlock, self::ACCESSOR, null, $declaringClass];
} elseif ([$docBlock, $prefix, $declaringClass] = $this->getDocBlockFromMethod($class, $ucFirstProperty, self::MUTATOR)) {
$data = [$docBlock, self::MUTATOR, $prefix, $declaringClass];
} else {
$data = [null, null, null, null];
}
return $this->docBlocks[$propertyHash] = $data;
}
/**
* @return array{PhpDocNode, int, string}|null
*/
private function getDocBlockFromProperty(string $class, string $property): ?array
{
// Use a ReflectionProperty instead of $class to get the parent class if applicable
try {
$reflectionProperty = new \ReflectionProperty($class, $property);
} catch (\ReflectionException) {
return null;
}
$source = self::PROPERTY;
if ($reflectionProperty->isPromoted()) {
$constructor = new \ReflectionMethod($class, '__construct');
$rawDocNode = $constructor->getDocComment();
$source = self::MUTATOR;
} else {
$rawDocNode = $reflectionProperty->getDocComment();
}
if (!$rawDocNode) {
return null;
}
$tokens = new TokenIterator($this->lexer->tokenize($rawDocNode));
$phpDocNode = $this->phpDocParser->parse($tokens);
$tokens->consumeTokenType(Lexer::TOKEN_END);
return [$phpDocNode, $source, $reflectionProperty->class];
}
/**
* @return array{PhpDocNode, string, string}|null
*/
private function getDocBlockFromMethod(string $class, string $ucFirstProperty, int $type): ?array
{
$prefixes = self::ACCESSOR === $type ? $this->accessorPrefixes : $this->mutatorPrefixes;
$prefix = null;
foreach ($prefixes as $prefix) {
$methodName = $prefix.$ucFirstProperty;
try {
$reflectionMethod = new \ReflectionMethod($class, $methodName);
if ($reflectionMethod->isStatic()) {
continue;
}
if (
(self::ACCESSOR === $type && 0 === $reflectionMethod->getNumberOfRequiredParameters())
|| (self::MUTATOR === $type && $reflectionMethod->getNumberOfParameters() >= 1)
) {
break;
}
} catch (\ReflectionException) {
// Try the next prefix if the method doesn't exist
}
}
if (!isset($reflectionMethod)) {
return null;
}
if (null === $rawDocNode = $reflectionMethod->getDocComment() ?: null) {
return null;
}
$tokens = new TokenIterator($this->lexer->tokenize($rawDocNode));
$phpDocNode = $this->phpDocParser->parse($tokens);
$tokens->consumeTokenType(Lexer::TOKEN_END);
return [$phpDocNode, $prefix, $reflectionMethod->class];
}
}

vendor/symfony/property-info/Extractor/PhpStanExtractor.php line 69