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Editing: AnnotationReader.php

<?php

namespace Doctrine\Common\Annotations;

use Doctrine\Common\Annotations\Annotation\IgnoreAnnotation;
use Doctrine\Common\Annotations\Annotation\Target;
use ReflectionClass;
use ReflectionFunction;
use ReflectionMethod;
use ReflectionProperty;

use function array_merge;
use function class_exists;
use function extension_loaded;
use function ini_get;

/**
 * A reader for docblock annotations.
 */
class AnnotationReader implements Reader
{
    /**
     * Global map for imports.
     *
     * @var array<string, class-string>
     */
    private static $globalImports = [
        'ignoreannotation' => Annotation\IgnoreAnnotation::class,
    ];

/**
     * A list with annotations that are not causing exceptions when not resolved to an annotation class.
     *
     * The names are case sensitive.
     *
     * @var array<string, true>
     */
    private static $globalIgnoredNames = ImplicitlyIgnoredAnnotationNames::LIST;

/**
     * Add a new annotation to the globally ignored annotation names with regard to exception handling.
     */
    public static function addGlobalIgnoredName(string $name)
    {
        self::$globalIgnoredNames[$name] = true;
    }

/**
     * Add a new annotation to the globally ignored annotation namespaces with regard to exception handling.
     */
    public static function addGlobalIgnoredNamespace(string $namespace)
    {
        self::$globalIgnoredNamespaces[$namespace] = true;
    }

/**
     * Annotations parser.
     *
     * @var DocParser
     */
    private $parser;

/**
     * Annotations parser used to collect parsing metadata.
     *
     * @var DocParser
     */
    private $preParser;

/**
     * PHP parser used to collect imports.
     *
     * @var PhpParser
     */
    private $phpParser;

/**
     * In-memory cache mechanism to store imported annotations per class.
     *
     * @psalm-var array<'class'|'function', array<string, array<string, class-string>>>
     */
    private $imports = [];

/**
     * In-memory cache mechanism to store ignored annotations per class.
     *
     * @psalm-var array<'class'|'function', array<string, array<string, true>>>
     */
    private $ignoredAnnotationNames = [];

/**
     * Initializes a new AnnotationReader.
     *
     * @throws AnnotationException
     */
    public function __construct(?DocParser $parser = null)
    {
        if (
            extension_loaded('Zend Optimizer+') && (ini_get('zend_optimizerplus.save_comments') === '0' ||
            ini_get('opcache.save_comments') === '0')
        ) {
            throw AnnotationException::optimizerPlusSaveComments();
        }

if (extension_loaded('Zend OPcache') && ini_get('opcache.save_comments') === 0) {
            throw AnnotationException::optimizerPlusSaveComments();
        }

// Make sure that the IgnoreAnnotation annotation is loaded
        class_exists(IgnoreAnnotation::class);

$this->parser = $parser ?: new DocParser();

$this->preParser = new DocParser();

$this->preParser->setImports(self::$globalImports);
        $this->preParser->setIgnoreNotImportedAnnotations(true);
        $this->preParser->setIgnoredAnnotationNames(self::$globalIgnoredNames);

$this->phpParser = new PhpParser();
    }

/**
     * {@inheritDoc}
     */
    public function getClassAnnotations(ReflectionClass $class)
    {
        $this->parser->setTarget(Target::TARGET_CLASS);
        $this->parser->setImports($this->getImports($class));
        $this->parser->setIgnoredAnnotationNames($this->getIgnoredAnnotationNames($class));
        $this->parser->setIgnoredAnnotationNamespaces(self::$globalIgnoredNamespaces);

return $this->parser->parse($class->getDocComment(), 'class ' . $class->getName());
    }

/**
     * {@inheritDoc}
     */
    public function getClassAnnotation(ReflectionClass $class, $annotationName)
    {
        $annotations = $this->getClassAnnotations($class);

foreach ($annotations as $annotation) {
            if ($annotation instanceof $annotationName) {
                return $annotation;
            }
        }

return null;
    }

/**
     * {@inheritDoc}
     */
    public function getPropertyAnnotations(ReflectionProperty $property)
    {
        $class   = $property->getDeclaringClass();
        $context = 'property ' . $class->getName() . '::$' . $property->getName();

$this->parser->setTarget(Target::TARGET_PROPERTY);
        $this->parser->setImports($this->getPropertyImports($property));
        $this->parser->setIgnoredAnnotationNames($this->getIgnoredAnnotationNames($class));
        $this->parser->setIgnoredAnnotationNamespaces(self::$globalIgnoredNamespaces);

return $this->parser->parse($property->getDocComment(), $context);
    }

/**
     * {@inheritDoc}
     */
    public function getPropertyAnnotation(ReflectionProperty $property, $annotationName)
    {
        $annotations = $this->getPropertyAnnotations($property);

foreach ($annotations as $annotation) {
            if ($annotation instanceof $annotationName) {
                return $annotation;
            }
        }

return null;
    }

/**
     * {@inheritDoc}
     */
    public function getMethodAnnotations(ReflectionMethod $method)
    {
        $class   = $method->getDeclaringClass();
        $context = 'method ' . $class->getName() . '::' . $method->getName() . '()';

$this->parser->setTarget(Target::TARGET_METHOD);
        $this->parser->setImports($this->getMethodImports($method));
        $this->parser->setIgnoredAnnotationNames($this->getIgnoredAnnotationNames($class));
        $this->parser->setIgnoredAnnotationNamespaces(self::$globalIgnoredNamespaces);

return $this->parser->parse($method->getDocComment(), $context);
    }

/**
     * {@inheritDoc}
     */
    public function getMethodAnnotation(ReflectionMethod $method, $annotationName)
    {
        $annotations = $this->getMethodAnnotations($method);

foreach ($annotations as $annotation) {
            if ($annotation instanceof $annotationName) {
                return $annotation;
            }
        }

return null;
    }

/**
     * Gets the annotations applied to a function.
     *
     * @phpstan-return list<object> An array of Annotations.
     */
    public function getFunctionAnnotations(ReflectionFunction $function): array
    {
        $context = 'function ' . $function->getName();

$this->parser->setTarget(Target::TARGET_FUNCTION);
        $this->parser->setImports($this->getImports($function));
        $this->parser->setIgnoredAnnotationNames($this->getIgnoredAnnotationNames($function));
        $this->parser->setIgnoredAnnotationNamespaces(self::$globalIgnoredNamespaces);

return $this->parser->parse($function->getDocComment(), $context);
    }

/**
     * Gets a function annotation.
     *
     * @return object|null The Annotation or NULL, if the requested annotation does not exist.
     */
    public function getFunctionAnnotation(ReflectionFunction $function, string $annotationName)
    {
        $annotations = $this->getFunctionAnnotations($function);

foreach ($annotations as $annotation) {
            if ($annotation instanceof $annotationName) {
                return $annotation;
            }
        }

return null;
    }

/**
     * Returns the ignored annotations for the given class or function.
     *
     * @param ReflectionClass|ReflectionFunction $reflection
     *
     * @return array<string, true>
     */
    private function getIgnoredAnnotationNames($reflection): array
    {
        $type = $reflection instanceof ReflectionClass ? 'class' : 'function';
        $name = $reflection->getName();

if (isset($this->ignoredAnnotationNames[$type][$name])) {
            return $this->ignoredAnnotationNames[$type][$name];
        }

$this->collectParsingMetadata($reflection);

return $this->ignoredAnnotationNames[$type][$name];
    }

/**
     * Retrieves imports for a class or a function.
     *
     * @param ReflectionClass|ReflectionFunction $reflection
     *
     * @return array<string, class-string>
     */
    private function getImports($reflection): array
    {
        $type = $reflection instanceof ReflectionClass ? 'class' : 'function';
        $name = $reflection->getName();

if (isset($this->imports[$type][$name])) {
            return $this->imports[$type][$name];
        }

$this->collectParsingMetadata($reflection);

return $this->imports[$type][$name];
    }

/**
     * Retrieves imports for methods.
     *
     * @return array<string, class-string>
     */
    private function getMethodImports(ReflectionMethod $method)
    {
        $class        = $method->getDeclaringClass();
        $classImports = $this->getImports($class);

$traitImports = [];

foreach ($class->getTraits() as $trait) {
            if (
                ! $trait->hasMethod($method->getName())
                || $trait->getFileName() !== $method->getFileName()
            ) {
                continue;
            }

$traitImports = array_merge($traitImports, $this->phpParser->parseUseStatements($trait));
        }

return array_merge($classImports, $traitImports);
    }

/**
     * Retrieves imports for properties.
     *
     * @return array<string, class-string>
     */
    private function getPropertyImports(ReflectionProperty $property)
    {
        $class        = $property->getDeclaringClass();
        $classImports = $this->getImports($class);

$traitImports = [];

foreach ($class->getTraits() as $trait) {
            if (! $trait->hasProperty($property->getName())) {
                continue;
            }

$traitImports = array_merge($traitImports, $this->phpParser->parseUseStatements($trait));
        }

return array_merge($classImports, $traitImports);
    }

/**
     * Collects parsing metadata for a given class or function.
     *
     * @param ReflectionClass|ReflectionFunction $reflection
     */
    private function collectParsingMetadata($reflection): void
    {
        $type = $reflection instanceof ReflectionClass ? 'class' : 'function';
        $name = $reflection->getName();

$ignoredAnnotationNames = self::$globalIgnoredNames;
        $annotations            = $this->preParser->parse($reflection->getDocComment(), $type . ' ' . $name);

foreach ($annotations as $annotation) {
            if (! ($annotation instanceof IgnoreAnnotation)) {
                continue;
            }

foreach ($annotation->names as $annot) {
                $ignoredAnnotationNames[$annot] = true;
            }
        }

$this->imports[$type][$name] = array_merge(
            self::$globalImports,
            $this->phpParser->parseUseStatements($reflection),
            [
                '__NAMESPACE__' => $reflection->getNamespaceName(),
                'self' => $name,
            ]
        );

$this->ignoredAnnotationNames[$type][$name] = $ignoredAnnotationNames;
    }
}

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