start_time = microtime(true); // 如果需要,添加内置的注解解析器 if ($with_internal_parsers) { $this->special_parsers = [ Middleware::class => [function (Middleware $middleware) { \middleware()->bindMiddleware([resolve($middleware->class), $middleware->method], $middleware->name, $middleware->params); }], Route::class => [[$this, 'addRouteAnnotation']], Closed::class => [fn () => false], Cron::class => [[resolve(Schedule::class), 'addSchedule']], ]; } } /** * 设置自定义的注解解析方法 * * @param string $class_name 注解类名 * @param callable $callback 回调函数 */ public function addSpecialParser(string $class_name, callable $callback): void { $this->special_parsers[$class_name][] = $callback; } /** * 解析所有传入的 PSR-4 下识别出来的类及下方的注解 * 返回一个包含三个元素的数组,分别是list、map、tree * 其中list为注解列表,key是注解的class名称,value是所有此注解的列表,即[Annotation1, ...] * map是类、方法映射表关系的三维数组,即[类名 => [方法名 => [注解1, ...]]] * tree是解析中间生成的树结构,内含反射对象,见下方注释 * * @return array[] * @throws \ReflectionException */ public function parse(): array { $reflection_tree = []; $annotation_map = []; $annotation_list = []; // 读取配置文件中配置的忽略解析的注解名,防止误解析一些别的地方需要的注解,比如@mixin $conf = config('global.runtime.annotation_reader_ignore'); // 有两种方式,第一种是通过名称,第二种是通过命名空间 if (isset($conf['name']) && is_array($conf['name'])) { foreach ($conf['name'] as $v) { AnnotationReader::addGlobalIgnoredName($v); } } if (isset($conf['namespace']) && is_array($conf['namespace'])) { foreach ($conf['namespace'] as $v) { AnnotationReader::addGlobalIgnoredNamespace($v); } } // 因为mixin常用,且框架默认不需要解析,则全局忽略 AnnotationReader::addGlobalIgnoredName('mixin'); // 声明一个既可以解析注解又可以解析Attribute的双reader来读取注解和Attribute $reader = new DualReader(new AnnotationReader(), new AttributeReader()); foreach ($this->class_list as $v) { logger()->debug('正在检索 ' . $v); // 通过反射实现注解读取 $reflection_class = new \ReflectionClass($v); $methods = $reflection_class->getMethods(\ReflectionMethod::IS_PUBLIC); $class_annotations = $reader->getClassAnnotations($reflection_class); // 这段为新加的:start // 这里将每个类里面所有的类注解、方法注解通通加到一颗大树上,后期解析 /* $reflection_tree: { Module\Example\Hello: { class_annotations: [ 注解对象1, 注解对象2, ... ], methods: [ ReflectionMethod, ReflectionMethod, ... ], methods_annotations: { foo: [ 注解对象1, 注解对象2, ... ], bar: [ 注解对象1, 注解对象2, ... ], } } } */ // 保存对class的注解 $reflection_tree[$v]['class_annotations'] = $class_annotations; // 保存类成员的方法的对应反射对象们 $reflection_tree[$v]['methods'] = $methods; // 保存对每个方法获取到的注解们 foreach ($methods as $method) { $reflection_tree[$v]['methods_annotations'][$method->getName()] = $reader->getMethodAnnotations($method); } // 因为适用于类的注解有一些比较特殊,比如有向下注入的,有控制行为的,所以需要遍历一下下放到方法里 foreach ($reflection_tree[$v]['class_annotations'] as $vs) { $vs->class = $v; // 预处理0:排除所有非继承于 AnnotationBase 的注解 if (!$vs instanceof AnnotationBase) { logger()->notice($vs::class . ' is not extended from ' . AnnotationBase::class); continue; } // 预处理2:将适用于每一个函数的注解到类注解重新注解到每个函数下面 if ($vs instanceof ErgodicAnnotation) { foreach (($reflection_tree[$v]['methods'] ?? []) as $method) { // 用 clone 的目的是生成个独立的对象,避免和 class 以及方法之间互相冲突 $copy = clone $vs; $copy->method = $method->getName(); $reflection_tree[$v]['methods_annotations'][$method->getName()][] = $copy; $annotation_list[get_class($vs)][] = $copy; } } // 预处理3:调用自定义解析器 if (($a = $this->parseSpecial($vs, $reflection_tree[$v]['class_annotations'])) === true) { continue; } if ($a === false) { unset($reflection_tree[$v]); continue 2; } $annotation_list[get_class($vs)][] = $vs; // 预处理4:加入组 if (isset($this->class_bind_group_list[get_class($vs)])) { $vs->group = array_merge($vs->group, $this->class_bind_group_list[get_class($vs)]); } } // 预处理3:处理每个函数上面的特殊注解,就是需要操作一些东西的 foreach (($reflection_tree[$v]['methods_annotations'] ?? []) as $method_name => $methods_annotations) { foreach ($methods_annotations as $method_anno) { // 预处理3.0:排除所有非继承于 AnnotationBase 的注解 if (!$method_anno instanceof AnnotationBase) { logger()->notice('Binding annotation ' . $method_anno::class . ' to ' . $v . '::' . $method_name . ' is not extended from ' . AnnotationBase::class); continue; } // 预处理3.1:给所有注解对象绑定当前的类名和方法名 $method_anno->class = $v; $method_anno->method = $method_name; // 预处理3.3:调用自定义解析器 $a = $this->parseSpecial($method_anno, $methods_annotations); if ($a === true) { continue; } if ($a === false) { unset($reflection_tree[$v]['methods_annotations'][$method_name]); continue 2; } // 如果上方没有解析或返回了 true,则添加到注解解析列表中 $annotation_map[$v][$method_name][] = $method_anno; $annotation_list[get_class($method_anno)][] = $method_anno; } } } logger()->debug('解析注解完毕!'); // ob_dump($annotation_list); return [$annotation_list, $annotation_map, $reflection_tree]; } /** * 生成排序后的注解列表 */ public function generateAnnotationListFromMap(): array { $o = []; foreach ($this->annotation_tree as $obj) { // 这里的ErgodicAnnotation是为了解决类上的注解可穿透到方法上的问题 foreach (($obj['class_annotations'] ?? []) as $class_annotation) { if ($class_annotation instanceof ErgodicAnnotation) { continue; } $o[$class_annotation::class][] = $class_annotation; } foreach (($obj['methods_annotations'] ?? []) as $methods_annotations) { foreach ($methods_annotations as $annotation) { $o[$annotation::class][] = $annotation; } } } return $o; } public function parseSpecial($annotation, $same_method_annotations = null): ?bool { foreach (($this->special_parsers[$annotation::class] ?? []) as $parser) { $result = $parser($annotation, $same_method_annotations); if (is_bool($result)) { return $result; } } return null; } /** * 添加解析的路径 * * @param string $path 注册解析注解的路径 * @param string $indoor_name 起始命名空间的名称 * @param array $join_groups 此类命名空间解析出来的注解要加入的组 */ public function addPsr4Path(string $path, string $indoor_name, array $join_groups = []): void { logger()->debug('Add register path: ' . $path . ' => ' . $indoor_name); $all_class = FileSystem::getClassesPsr4($path, $indoor_name, return_path_value: false); if (!empty($join_groups)) { foreach ($all_class as $v) { $this->class_bind_group_list[$v] = $join_groups; } } $this->class_list = array_merge($this->class_list, $all_class); } /** * 获取解析器调用的时间(秒) */ public function getUsedTime(): float { return microtime(true) - $this->start_time; } /** * 获取注解的注册map */ public function getAnnotationMap(): array { return $this->annotation_map; } /** * 添加注解路由 */ private function addRouteAnnotation(Route $vss, ?array $same_method_annotations = null) { // 拿到所属方法的类上面有没有控制器的注解 $prefix = ''; if ($same_method_annotations !== null) { foreach ($same_method_annotations as $annotation) { if ($annotation instanceof Controller) { $prefix = $annotation->prefix; break; } } } $tail = trim($vss->route, '/'); $route_name = $prefix . ($tail === '' ? '' : '/') . $tail; logger()->debug('添加路由:' . $route_name); $route = new \Symfony\Component\Routing\Route($route_name, ['_class' => $vss->class, '_method' => $vss->method]); $route->setMethods($vss->request_method); HttpUtil::getRouteCollection()->add(md5($route_name), $route); return null; } }