Файл: gapps/vendor/phpdocumentor/reflection-docblock/src/DocBlock/StandardTagFactory.php
Строк: 458
<?php
/**
* This file is part of phpDocumentor.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @copyright 2010-2015 Mike van Riel<mike@phpdoc.org>
* @license http://www.opensource.org/licenses/mit-license.php MIT
* @link http://phpdoc.org
*/
namespace phpDocumentorReflectionDocBlock;
use phpDocumentorReflectionDocBlockTagsFactoryStaticMethod;
use phpDocumentorReflectionDocBlockTagsGeneric;
use phpDocumentorReflectionFqsenResolver;
use phpDocumentorReflectionTypesContext as TypeContext;
use WebmozartAssertAssert;
/**
* Creates a Tag object given the contents of a tag.
*
* This Factory is capable of determining the appropriate class for a tag and instantiate it using its `create`
* factory method. The `create` factory method of a Tag can have a variable number of arguments; this way you can
* pass the dependencies that you need to construct a tag object.
*
* > Important: each parameter in addition to the body variable for the `create` method must default to null, otherwise
* > it violates the constraint with the interface; it is recommended to use the {@see Assert::notNull()} method to
* > verify that a dependency is actually passed.
*
* This Factory also features a Service Locator component that is used to pass the right dependencies to the
* `create` method of a tag; each dependency should be registered as a service or as a parameter.
*
* When you want to use a Tag of your own with custom handling you need to call the `registerTagHandler` method, pass
* the name of the tag and a Fully Qualified Class Name pointing to a class that implements the Tag interface.
*/
final class StandardTagFactory implements TagFactory
{
/** PCRE regular expression matching a tag name. */
const REGEX_TAGNAME = '[w-_\\]+';
/**
* @var string[] An array with a tag as a key, and an FQCN to a class that handles it as an array value.
*/
private $tagHandlerMappings = [
'author' => 'phpDocumentorReflectionDocBlockTagsAuthor',
'covers' => 'phpDocumentorReflectionDocBlockTagsCovers',
'deprecated' => 'phpDocumentorReflectionDocBlockTagsDeprecated',
// 'example' => 'phpDocumentorReflectionDocBlockTagsExample',
'link' => 'phpDocumentorReflectionDocBlockTagsLink',
'method' => 'phpDocumentorReflectionDocBlockTagsMethod',
'param' => 'phpDocumentorReflectionDocBlockTagsParam',
'property-read' => 'phpDocumentorReflectionDocBlockTagsPropertyRead',
'property' => 'phpDocumentorReflectionDocBlockTagsProperty',
'property-write' => 'phpDocumentorReflectionDocBlockTagsPropertyWrite',
'return' => 'phpDocumentorReflectionDocBlockTagsReturn_',
'see' => 'phpDocumentorReflectionDocBlockTagsSee',
'since' => 'phpDocumentorReflectionDocBlockTagsSince',
'source' => 'phpDocumentorReflectionDocBlockTagsSource',
'throw' => 'phpDocumentorReflectionDocBlockTagsThrows',
'throws' => 'phpDocumentorReflectionDocBlockTagsThrows',
'uses' => 'phpDocumentorReflectionDocBlockTagsUses',
'var' => 'phpDocumentorReflectionDocBlockTagsVar_',
'version' => 'phpDocumentorReflectionDocBlockTagsVersion'
];
/**
* @var ReflectionParameter[][] a lazy-loading cache containing parameters for each tagHandler that has been used.
*/
private $tagHandlerParameterCache = [];
/**
* @var FqsenResolver
*/
private $fqsenResolver;
/**
* @var mixed[] an array representing a simple Service Locator where we can store parameters and
* services that can be inserted into the Factory Methods of Tag Handlers.
*/
private $serviceLocator = [];
/**
* Initialize this tag factory with the means to resolve an FQSEN and optionally a list of tag handlers.
*
* If no tag handlers are provided than the default list in the {@see self::$tagHandlerMappings} property
* is used.
*
* @param FqsenResolver $fqsenResolver
* @param string[] $tagHandlers
*
* @see self::registerTagHandler() to add a new tag handler to the existing default list.
*/
public function __construct(FqsenResolver $fqsenResolver, array $tagHandlers = null)
{
$this->fqsenResolver = $fqsenResolver;
if ($tagHandlers !== null) {
$this->tagHandlerMappings = $tagHandlers;
}
$this->addService($fqsenResolver, FqsenResolver::class);
}
/**
* {@inheritDoc}
*/
public function create($tagLine, TypeContext $context = null)
{
if (! $context) {
$context = new TypeContext('');
}
list($tagName, $tagBody) = $this->extractTagParts($tagLine);
return $this->createTag($tagBody, $tagName, $context);
}
/**
* {@inheritDoc}
*/
public function addParameter($name, $value)
{
$this->serviceLocator[$name] = $value;
}
/**
* {@inheritDoc}
*/
public function addService($service, $alias = null)
{
$this->serviceLocator[$alias ?: get_class($service)] = $service;
}
/**
* {@inheritDoc}
*/
public function registerTagHandler($tagName, $handler)
{
Assert::stringNotEmpty($tagName);
Assert::stringNotEmpty($handler);
Assert::classExists($handler);
Assert::implementsInterface($handler, StaticMethod::class);
if (strpos($tagName, '\') && $tagName[0] !== '\') {
throw new InvalidArgumentException(
'A namespaced tag must have a leading backslash as it must be fully qualified'
);
}
$this->tagHandlerMappings[$tagName] = $handler;
}
/**
* Extracts all components for a tag.
*
* @param string $tagLine
*
* @return string[]
*/
private function extractTagParts($tagLine)
{
$matches = array();
if (! preg_match('/^@(' . self::REGEX_TAGNAME . ')(?:s*([^s].*)|$)?/us', $tagLine, $matches)) {
throw new InvalidArgumentException(
'The tag "' . $tagLine . '" does not seem to be wellformed, please check it for errors'
);
}
if (count($matches) < 3) {
$matches[] = '';
}
return array_slice($matches, 1);
}
/**
* Creates a new tag object with the given name and body or returns null if the tag name was recognized but the
* body was invalid.
*
* @param string $body
* @param string $name
* @param TypeContext $context
*
* @return Tag|null
*/
private function createTag($body, $name, TypeContext $context)
{
$handlerClassName = $this->findHandlerClassName($name, $context);
$arguments = $this->getArgumentsForParametersFromWiring(
$this->fetchParametersForHandlerFactoryMethod($handlerClassName),
$this->getServiceLocatorWithDynamicParameters($context, $name, $body)
)
;
return call_user_func_array([$handlerClassName, 'create'], $arguments);
}
/**
* Determines the Fully Qualified Class Name of the Factory or Tag (containing a Factory Method `create`).
*
* @param string $tagName
* @param TypeContext $context
*
* @return string
*/
private function findHandlerClassName($tagName, TypeContext $context)
{
$handlerClassName = Generic::class;
if (isset($this->tagHandlerMappings[$tagName])) {
$handlerClassName = $this->tagHandlerMappings[$tagName];
} elseif ($this->isAnnotation($tagName)) {
// TODO: Annotation support is planned for a later stage and as such is disabled for now
// $tagName = (string)$this->fqsenResolver->resolve($tagName, $context);
// if (isset($this->annotationMappings[$tagName])) {
// $handlerClassName = $this->annotationMappings[$tagName];
// }
}
return $handlerClassName;
}
/**
* Retrieves the arguments that need to be passed to the Factory Method with the given Parameters.
*
* @param ReflectionParameter[] $parameters
* @param mixed[] $locator
*
* @return mixed[] A series of values that can be passed to the Factory Method of the tag whose parameters
* is provided with this method.
*/
private function getArgumentsForParametersFromWiring($parameters, $locator)
{
$arguments = [];
foreach ($parameters as $index => $parameter) {
$typeHint = $parameter->getClass() ? $parameter->getClass()->getName() : null;
if (isset($locator[$typeHint])) {
$arguments[] = $locator[$typeHint];
continue;
}
$parameterName = $parameter->getName();
if (isset($locator[$parameterName])) {
$arguments[] = $locator[$parameterName];
continue;
}
$arguments[] = null;
}
return $arguments;
}
/**
* Retrieves a series of ReflectionParameter objects for the static 'create' method of the given
* tag handler class name.
*
* @param string $handlerClassName
*
* @return ReflectionParameter[]
*/
private function fetchParametersForHandlerFactoryMethod($handlerClassName)
{
if (! isset($this->tagHandlerParameterCache[$handlerClassName])) {
$methodReflection = new ReflectionMethod($handlerClassName, 'create');
$this->tagHandlerParameterCache[$handlerClassName] = $methodReflection->getParameters();
}
return $this->tagHandlerParameterCache[$handlerClassName];
}
/**
* Returns a copy of this class' Service Locator with added dynamic parameters, such as the tag's name, body and
* Context.
*
* @param TypeContext $context The Context (namespace and aliasses) that may be passed and is used to resolve FQSENs.
* @param string $tagName The name of the tag that may be passed onto the factory method of the Tag class.
* @param string $tagBody The body of the tag that may be passed onto the factory method of the Tag class.
*
* @return mixed[]
*/
private function getServiceLocatorWithDynamicParameters(TypeContext $context, $tagName, $tagBody)
{
$locator = array_merge(
$this->serviceLocator,
[
'name' => $tagName,
'body' => $tagBody,
TypeContext::class => $context
]
);
return $locator;
}
/**
* Returns whether the given tag belongs to an annotation.
*
* @param string $tagContent
*
* @todo this method should be populated once we implement Annotation notation support.
*
* @return bool
*/
private function isAnnotation($tagContent)
{
// 1. Contains a namespace separator
// 2. Contains parenthesis
// 3. Is present in a list of known annotations (make the algorithm smart by first checking is the last part
// of the annotation class name matches the found tag name
return false;
}
}