betterdocs / includes / Dependencies / DI / Definition / Source / AnnotationBasedAutowiring.php

AnnotationBasedAutowiring.php in BetterDocs – AI Documentation, Knowledge Base, MCP Server, Docs, Wikis, FAQ & Chatbot 4.2.0, at includes/Dependencies/DI/Definition/Source/AnnotationBasedAutowiring.php

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1	<?php
2
3	declare(strict_types=1);
4
5	namespace WPDeveloper\BetterDocs\Dependencies\DI\Definition\Source;
6
7	use WPDeveloper\BetterDocs\Dependencies\DI\Annotation\Inject;
8	use WPDeveloper\BetterDocs\Dependencies\DI\Annotation\Injectable;
9	use WPDeveloper\BetterDocs\Dependencies\DI\Definition\Exception\InvalidAnnotation;
10	use WPDeveloper\BetterDocs\Dependencies\DI\Definition\ObjectDefinition;
11	use WPDeveloper\BetterDocs\Dependencies\DI\Definition\ObjectDefinition\MethodInjection;
12	use WPDeveloper\BetterDocs\Dependencies\DI\Definition\ObjectDefinition\PropertyInjection;
13	use WPDeveloper\BetterDocs\Dependencies\DI\Definition\Reference;
14	use Doctrine\Common\Annotations\AnnotationRegistry;
15	use Doctrine\Common\Annotations\Reader;
16	use Doctrine\Common\Annotations\SimpleAnnotationReader;
17	use InvalidArgumentException;
18	use WPDeveloper\BetterDocs\Dependencies\PhpDocReader\PhpDocReader;
19	use ReflectionClass;
20	use ReflectionMethod;
21	use ReflectionParameter;
22	use ReflectionProperty;
23	use UnexpectedValueException;
24
25	/**
26	* Provides WPDeveloper\BetterDocs\Dependencies\DI definitions by reading annotations such as @ Inject and @ var annotations.
27	*
28	* Uses Autowiring, Doctrine's Annotations and regex docblock parsing.
29	* This source automatically includes the reflection source.
30	*
31	* @author Matthieu Napoli <matthieu@mnapoli.fr>
32	*/
33	class AnnotationBasedAutowiring implements DefinitionSource, Autowiring
34	{
35	/**
36	* @var Reader
37	*/
38	private $annotationReader;
39
40	/**
41	* @var WPDeveloper\BetterDocs\Dependencies\PhpDocReader
42	*/
43	private $phpDocReader;
44
45	/**
46	* @var bool
47	*/
48	private $ignorePhpDocErrors;
49
50	public function __construct($ignorePhpDocErrors = false)
51	{
52	$this->ignorePhpDocErrors = (bool) $ignorePhpDocErrors;
53	}
54
55	public function autowire(string $name, ObjectDefinition $definition = null)
56	{
57	$className = $definition ? $definition->getClassName() : $name;
58
59	if (!class_exists($className) && !interface_exists($className)) {
60	return $definition;
61	}
62
63	$definition = $definition ?: new ObjectDefinition($name);
64
65	$class = new ReflectionClass($className);
66
67	$this->readInjectableAnnotation($class, $definition);
68
69	// Browse the class properties looking for annotated properties
70	$this->readProperties($class, $definition);
71
72	// Browse the object's methods looking for annotated methods
73	$this->readMethods($class, $definition);
74
75	return $definition;
76	}
77
78	/**
79	* {@inheritdoc}
80	* @throws InvalidAnnotation
81	* @throws InvalidArgumentException The class doesn't exist
82	*/
83	public function getDefinition(string $name)
84	{
85	return $this->autowire($name);
86	}
87
88	/**
89	* Autowiring cannot guess all existing definitions.
90	*/
91	public function getDefinitions() : array
92	{
93	return [];
94	}
95
96	/**
97	* Browse the class properties looking for annotated properties.
98	*/
99	private function readProperties(ReflectionClass $class, ObjectDefinition $definition)
100	{
101	foreach ($class->getProperties() as $property) {
102	if ($property->isStatic()) {
103	continue;
104	}
105	$this->readProperty($property, $definition);
106	}
107
108	// Read also the private properties of the parent classes
109	/** @noinspection PhpAssignmentInConditionInspection */
110	while ($class = $class->getParentClass()) {
111	foreach ($class->getProperties(ReflectionProperty::IS_PRIVATE) as $property) {
112	if ($property->isStatic()) {
113	continue;
114	}
115	$this->readProperty($property, $definition, $class->getName());
116	}
117	}
118	}
119
120	private function readProperty(ReflectionProperty $property, ObjectDefinition $definition, $classname = null)
121	{
122	// Look for @Inject annotation
123	/** @var Inject $annotation */
124	$annotation = $this->getAnnotationReader()->getPropertyAnnotation($property, 'WPDeveloper\BetterDocs\Dependencies\DI\Annotation\Inject');
125	if ($annotation === null) {
126	return;
127	}
128
129	// @Inject("name") or look for @var content
130	$entryName = $annotation->getName() ?: $this->getPhpDocReader()->getPropertyClass($property);
131
132	if ($entryName === null) {
133	throw new InvalidAnnotation(sprintf(
134	'@Inject found on property %s::%s but unable to guess what to inject, use a @var annotation',
135	$property->getDeclaringClass()->getName(),
136	$property->getName()
137	));
138	}
139
140	$definition->addPropertyInjection(
141	new PropertyInjection($property->getName(), new Reference($entryName), $classname)
142	);
143	}
144
145	/**
146	* Browse the object's methods looking for annotated methods.
147	*/
148	private function readMethods(ReflectionClass $class, ObjectDefinition $objectDefinition)
149	{
150	// This will look in all the methods, including those of the parent classes
151	foreach ($class->getMethods(ReflectionMethod::IS_PUBLIC) as $method) {
152	if ($method->isStatic()) {
153	continue;
154	}
155
156	$methodInjection = $this->getMethodInjection($method);
157
158	if (! $methodInjection) {
159	continue;
160	}
161
162	if ($method->isConstructor()) {
163	$objectDefinition->completeConstructorInjection($methodInjection);
164	} else {
165	$objectDefinition->completeFirstMethodInjection($methodInjection);
166	}
167	}
168	}
169
170	/**
171	* @param ReflectionMethod $method
172	*
173	* @return MethodInjection\|null
174	*/
175	private function getMethodInjection(ReflectionMethod $method)
176	{
177	// Look for @Inject annotation
178	/** @var $annotation Inject\|null */
179	try {
180	$annotation = $this->getAnnotationReader()->getMethodAnnotation($method, 'WPDeveloper\BetterDocs\Dependencies\DI\Annotation\Inject');
181	} catch (InvalidAnnotation $e) {
182	throw new InvalidAnnotation(sprintf(
183	'@Inject annotation on %s::%s is malformed. %s',
184	$method->getDeclaringClass()->getName(),
185	$method->getName(),
186	$e->getMessage()
187	), 0, $e);
188	}
189	$annotationParameters = $annotation ? $annotation->getParameters() : [];
190
191	// @Inject on constructor is implicit
192	if (! ($annotation \|\| $method->isConstructor())) {
193	return null;
194	}
195
196	$parameters = [];
197	foreach ($method->getParameters() as $index => $parameter) {
198	$entryName = $this->getMethodParameter($index, $parameter, $annotationParameters);
199
200	if ($entryName !== null) {
201	$parameters[$index] = new Reference($entryName);
202	}
203	}
204
205	if ($method->isConstructor()) {
206	return MethodInjection::constructor($parameters);
207	}
208
209	return new MethodInjection($method->getName(), $parameters);
210	}
211
212	/**
213	* @param int $parameterIndex
214	* @param ReflectionParameter $parameter
215	* @param array $annotationParameters
216	*
217	* @return string\|null Entry name or null if not found.
218	*/
219	private function getMethodParameter($parameterIndex, ReflectionParameter $parameter, array $annotationParameters)
220	{
221	// @Inject has definition for this parameter (by index, or by name)
222	if (isset($annotationParameters[$parameterIndex])) {
223	return $annotationParameters[$parameterIndex];
224	}
225	if (isset($annotationParameters[$parameter->getName()])) {
226	return $annotationParameters[$parameter->getName()];
227	}
228
229	// Skip optional parameters if not explicitly defined
230	if ($parameter->isOptional()) {
231	return null;
232	}
233
234	// Try to use the type-hinting
235	$parameterClass = $parameter->getType() && !$parameter->getType()->isBuiltin() ? new ReflectionClass($parameter->getType()->getName()) : null;
236	if ($parameterClass) {
237	return $parameterClass->getName();
238	}
239
240	// Last resort, look for @param tag
241	return $this->getPhpDocReader()->getParameterClass($parameter);
242	}
243
244	/**
245	* @return Reader The annotation reader
246	*/
247	public function getAnnotationReader()
248	{
249	if ($this->annotationReader === null) {
250	AnnotationRegistry::registerLoader('class_exists');
251	$this->annotationReader = new SimpleAnnotationReader();
252	$this->annotationReader->addNamespace('WPDeveloper\BetterDocs\Dependencies\DI\Annotation');
253	}
254
255	return $this->annotationReader;
256	}
257
258	/**
259	* @return WPDeveloper\BetterDocs\Dependencies\PhpDocReader
260	*/
261	private function getPhpDocReader()
262	{
263	if ($this->phpDocReader === null) {
264	$this->phpDocReader = new PhpDocReader($this->ignorePhpDocErrors);
265	}
266
267	return $this->phpDocReader;
268	}
269
270	private function readInjectableAnnotation(ReflectionClass $class, ObjectDefinition $definition)
271	{
272	try {
273	/** @var Injectable\|null $annotation */
274	$annotation = $this->getAnnotationReader()
275	->getClassAnnotation($class, 'WPDeveloper\BetterDocs\Dependencies\DI\Annotation\Injectable');
276	} catch (UnexpectedValueException $e) {
277	throw new InvalidAnnotation(sprintf(
278	'Error while reading @Injectable on %s: %s',
279	$class->getName(),
280	$e->getMessage()
281	), 0, $e);
282	}
283
284	if (! $annotation) {
285	return;
286	}
287
288	if ($annotation->isLazy() !== null) {
289	$definition->setLazy($annotation->isLazy());
290	}
291	}
292	}
293