89 lines
2.3 KiB
PHP
89 lines
2.3 KiB
PHP
<?php
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namespace top\library;
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use top\traits\Instance;
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/**
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* 获取类注解
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* Class Annotation
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* @package top\library
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*/
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class Annotation
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{
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use Instance;
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/**
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* 获取到的类注解
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* @var array
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*/
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private static $annotations = [];
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/**
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* 获取方法注解
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* @param object|string $className
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* @param string $methodName
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* @param string $annotation
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* @return array|string
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*/
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public static function getMethodAnnotation($className, $methodName, $annotation = '')
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{
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return self::getAnnotation($className, $methodName, $annotation);
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}
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/**
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* 获取类注解
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* @param object|string $className
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* @param string $annotation
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* @return array|string
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*/
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public static function getClassAnnotation($className, $annotation = '')
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{
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return self::getAnnotation($className, null, $annotation);
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}
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/**
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* 获取注解
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* @param object|string $className
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* @param string $methodName
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* @param string $annotation
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* @return array|string
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*/
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private static function getAnnotation($className, $methodName = '', $annotation = '')
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{
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if (is_object($className)) {
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$className = get_class($className);
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}
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$ident = md5($className . $methodName);
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if (!isset(self::$annotations[$ident])) {
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$self = self::instance();
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$reflectionClass = Application::getReflectionClass($className);
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if ($methodName) {
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$doc = $reflectionClass->getMethod($methodName)->getDocComment();
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} else {
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$doc = $reflectionClass->getDocComment();
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}
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self::$annotations[$ident] = $self->parseAnnotation($doc);
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}
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return ($annotation) ? self::$annotations[$ident][$annotation] : self::$annotations[$ident];
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}
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/**
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* 解析出注解
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* @param $doc
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* @return array
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*/
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private function parseAnnotation($doc)
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{
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$result = [];
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preg_match_all('/@([a-zA-Z]+)\s(.*)/', $doc, $matches);
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if (!empty($matches)) {
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for ($i = 0; $i < count($matches[0]); $i++)
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$result[$matches[1][$i]] = trim($matches[2][$i]);
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}
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$matches = null;
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return $result;
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}
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}
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