PHP Smarty_Internal_Debug::start_cache方法代码示例

//.........这里部分代码省略.........
         }
         $this->cached->isCached($this);
     }
     if (!$isCacheTpl || !$this->cached->valid) {
         if ($isCacheTpl) {
             $this->properties['tpl_function'] = [];
         }
         // render template (not loaded and not in cache)
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::start_render($this);
         }
         if (!$this->source->uncompiled) {
             // render compiled code
             if (!isset($this->compiled)) {
                 $this->loadCompiled();
             }
             $content = $this->compiled->render($this);
         } else {
             $content = $this->source->renderUncompiled($this);
         }
         if (!$this->source->recompiled && empty($this->properties['file_dependency'][$this->source->uid])) {
             $this->properties['file_dependency'][$this->source->uid] = [$this->source->filepath, $this->source->timestamp, $this->source->type];
         }
         if ($parentIsTpl) {
             $this->parent->properties['file_dependency'] = array_merge($this->parent->properties['file_dependency'], $this->properties['file_dependency']);
             //$this->parent->properties['tpl_function'] = array_merge($this->parent->properties['tpl_function'], $this->properties['tpl_function']);
         }
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::end_render($this);
         }
         // write to cache when necessary
         if (!$this->source->recompiled && $isCacheTpl) {
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::start_cache($this);
             }
             $this->cached->updateCache($this, $content, $no_output_filter);
             $compile_check = $this->smarty->compile_check;
             $this->smarty->compile_check = false;
             if ($parentIsTpl) {
                 $this->properties['tpl_function'] = $this->parent->properties['tpl_function'];
             }
             if (!$this->cached->processed) {
                 $this->cached->process($this);
             }
             $this->smarty->compile_check = $compile_check;
             $content = $this->getRenderedTemplateCode();
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::end_cache($this);
             }
         } else {
             if (!empty($this->properties['nocache_hash']) && !empty($this->parent->properties['nocache_hash'])) {
                 // replace nocache_hash
                 $content = str_replace("{$this->properties['nocache_hash']}", $this->parent->properties['nocache_hash'], $content);
                 $this->parent->has_nocache_code = $this->parent->has_nocache_code || $this->has_nocache_code;
             }
         }
     } else {
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::start_cache($this);
         }
         $content = $this->cached->render($this);
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::end_cache($this);
         }
     }
     if ((!$this->caching || $this->has_nocache_code || $this->source->recompiled) && !$no_output_filter && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {

 /**
  * Returns the rendered HTML output 
  * 
  * If the cache is valid the cached content is used, otherwise
  * the output is rendered from the compiled template or PHP template source
  * 
  * @return string rendered HTML output
  */
 public function getRenderedTemplate()
 {
     // disable caching for evaluated code
     if ($this->resource_object->isEvaluated) {
         $this->caching = false;
     }
     // checks if template exists
     $this->isExisting(true);
     // read from cache or render
     if ($this->rendered_content === null) {
         if ($this->isCached) {
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::start_cache($this);
             }
             $this->rendered_content = $this->cache_resource_object->getCachedContents($this, false);
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::end_cache($this);
             }
         }
         if ($this->isCached === null) {
             $this->isCached(false);
         }
         if (!$this->isCached) {
             // render template (not loaded and not in cache)
             $this->renderTemplate();
         }
     }
     $this->updateParentVariables();
     $this->isCached = null;
     return $this->rendered_content;
 }

//.........这里部分代码省略.........
                     Smarty_Internal_Debug::start_render($_template);
                 }
                 try {
                     ob_start();
                     $_template->source->renderUncompiled($_template);
                 } catch (Exception $e) {
                     ob_get_clean();
                     throw $e;
                 }
             } else {
                 throw new SmartyException("Resource '{$_template->source}->type' must have 'renderUncompiled' method");
             }
         }
         $_output = ob_get_clean();
         if (!$_template->source->recompiled && empty($_template->properties['file_dependency'][$_template->source->uid])) {
             $_template->properties['file_dependency'][$_template->source->uid] = array($_template->source->filepath, $_template->source->timestamp, $_template->source->type);
         }
         if ($_template->parent instanceof Smarty_Internal_Template) {
             $_template->parent->properties['file_dependency'] = array_merge($_template->parent->properties['file_dependency'], $_template->properties['file_dependency']);
             foreach ($_template->required_plugins as $code => $tmp1) {
                 foreach ($tmp1 as $name => $tmp) {
                     foreach ($tmp as $type => $data) {
                         $_template->parent->required_plugins[$code][$name][$type] = $data;
                     }
                 }
             }
         }
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::end_render($_template);
         }
         // write to cache when nessecary
         if (!$_template->source->recompiled && ($_template->caching == Smarty::CACHING_LIFETIME_SAVED || $_template->caching == Smarty::CACHING_LIFETIME_CURRENT)) {
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::start_cache($_template);
             }
             $_template->properties['has_nocache_code'] = false;
             // get text between non-cached items
             $cache_split = preg_split("!/\\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*/!s", $_output);
             // get non-cached items
             preg_match_all("!/\\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*/!s", $_output, $cache_parts);
             $output = '';
             // loop over items, stitch back together
             foreach ($cache_split as $curr_idx => $curr_split) {
                 // escape PHP tags in template content
                 $output .= preg_replace('/(<%|%>|<\\?php|<\\?|\\?>)/', '<?php echo \'$1\'; ?>', $curr_split);
                 if (isset($cache_parts[0][$curr_idx])) {
                     $_template->properties['has_nocache_code'] = true;
                     // remove nocache tags from cache output
                     $output .= preg_replace("!/\\*/?%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*/!", '', $cache_parts[0][$curr_idx]);
                 }
             }
             if (!$no_output_filter && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {
                 $output = Smarty_Internal_Filter_Handler::runFilter('output', $output, $_template);
             }
             // rendering (must be done before writing cache file because of {function} nocache handling)
             $_smarty_tpl = $_template;
             try {
                 ob_start();
                 eval("?>" . $output);
                 $_output = ob_get_clean();
             } catch (Exception $e) {
                 ob_get_clean();
                 throw $e;
             }
             // write cache file content
             $_template->writeCachedContent($output);

 /**
  * create Cached Object container
  *
  * @param Smarty_Internal_Template $_template template object
  */
 public function __construct(Smarty_Internal_Template $_template)
 {
     $this->compile_id = $_template->compile_id;
     $this->cache_id = $_template->cache_id;
     $this->source = $_template->source;
     $_template->cached = $this;
     $smarty = $_template->smarty;
     //
     // load resource handler
     //
     $this->handler = $handler = Smarty_CacheResource::load($smarty);
     // Note: prone to circular references
     //
     //    check if cache is valid
     //
     if (!($_template->caching == Smarty::CACHING_LIFETIME_CURRENT || $_template->caching == Smarty::CACHING_LIFETIME_SAVED) || $_template->source->recompiled) {
         $handler->populate($this, $_template);
         return;
     }
     while (true) {
         while (true) {
             $handler->populate($this, $_template);
             if ($this->timestamp === false || $smarty->force_compile || $smarty->force_cache) {
                 $this->valid = false;
             } else {
                 $this->valid = true;
             }
             if ($this->valid && $_template->caching == Smarty::CACHING_LIFETIME_CURRENT && $_template->cache_lifetime >= 0 && time() > $this->timestamp + $_template->cache_lifetime) {
                 // lifetime expired
                 $this->valid = false;
             }
             if ($this->valid || !$_template->smarty->cache_locking) {
                 break;
             }
             if (!$this->handler->locked($_template->smarty, $this)) {
                 $this->handler->acquireLock($_template->smarty, $this);
                 break 2;
             }
         }
         if ($this->valid) {
             if (!$_template->smarty->cache_locking || $this->handler->locked($_template->smarty, $this) === null) {
                 // load cache file for the following checks
                 if ($smarty->debugging) {
                     Smarty_Internal_Debug::start_cache($_template);
                 }
                 if ($handler->process($_template, $this) === false) {
                     $this->valid = false;
                 } else {
                     $this->processed = true;
                 }
                 if ($smarty->debugging) {
                     Smarty_Internal_Debug::end_cache($_template);
                 }
             } else {
                 continue;
             }
         } else {
             return;
         }
         if ($this->valid && $_template->caching === Smarty::CACHING_LIFETIME_SAVED && $_template->properties['cache_lifetime'] >= 0 && time() > $_template->cached->timestamp + $_template->properties['cache_lifetime']) {
             $this->valid = false;
         }
         if (!$this->valid && $_template->smarty->cache_locking) {
             $this->handler->acquireLock($_template->smarty, $this);
             return;
         } else {
             return;
         }
     }
 }

 /**
  * Check if cache is valid, lock cache if required
  *
  * @param \Smarty_Internal_Template $_template
  *
  * @return bool flag true if cache is valid
  */
 public function isCached(Smarty_Internal_Template $_template)
 {
     if ($this->valid !== null) {
         return $this->valid;
     }
     while (true) {
         while (true) {
             if ($this->exists === false || $_template->smarty->force_compile || $_template->smarty->force_cache) {
                 $this->valid = false;
             } else {
                 $this->valid = true;
             }
             if ($this->valid && $_template->caching == Smarty::CACHING_LIFETIME_CURRENT && $_template->cache_lifetime >= 0 && time() > $this->timestamp + $_template->cache_lifetime) {
                 // lifetime expired
                 $this->valid = false;
             }
             if ($this->valid && $_template->source->timestamp > $this->timestamp) {
                 $this->valid = false;
             }
             if ($this->valid || !$_template->smarty->cache_locking) {
                 break;
             }
             if (!$this->handler->locked($_template->smarty, $this)) {
                 $this->handler->acquireLock($_template->smarty, $this);
                 break 2;
             }
             $this->handler->populate($this, $_template);
         }
         if ($this->valid) {
             if (!$_template->smarty->cache_locking || $this->handler->locked($_template->smarty, $this) === null) {
                 // load cache file for the following checks
                 if ($_template->smarty->debugging) {
                     Smarty_Internal_Debug::start_cache($_template);
                 }
                 if ($this->handler->process($_template, $this) === false) {
                     $this->valid = false;
                 } else {
                     $this->processed = true;
                 }
                 if ($_template->smarty->debugging) {
                     Smarty_Internal_Debug::end_cache($_template);
                 }
             } else {
                 $this->is_locked = true;
                 continue;
             }
         } else {
             return $this->valid;
         }
         if ($this->valid && $_template->caching === Smarty::CACHING_LIFETIME_SAVED && $_template->properties['cache_lifetime'] >= 0 && time() > $_template->cached->timestamp + $_template->properties['cache_lifetime']) {
             $this->valid = false;
         }
         if ($_template->smarty->cache_locking) {
             if (!$this->valid) {
                 $this->handler->acquireLock($_template->smarty, $this);
             } elseif ($this->is_locked) {
                 $this->handler->releaseLock($_template->smarty, $this);
             }
         }
         return $this->valid;
     }
     return $this->valid;
 }

//.........这里部分代码省略.........
         //								'page_today_num' => 1,
         //								'lasttime' => 1
         //							);
         //						} else {//是当日，累加访问数
         //							$data2 = array(
         //								'id' => $stats_id,
         //								'page_count_num' => $stats_info->page_count_num + 1,
         //								'page_today_num' => $stats_info->page_today_num + 1
         //							);
         //						}
         //					}
         //					$resa = $postFun->postsend("http://swap.5067.org/stats.php?key=update_stats", $data2); //更新客户访问统计信息
         //				}
         //			}
         if (!$_template->source->recompiled && empty($_template->properties['file_dependency'][$_template->source->uid])) {
             $_template->properties['file_dependency'][$_template->source->uid] = array($_template->source->filepath, $_template->source->timestamp, $_template->source->type);
         }
         if ($_template->parent instanceof Smarty_Internal_Template) {
             $_template->parent->properties['file_dependency'] = array_merge($_template->parent->properties['file_dependency'], $_template->properties['file_dependency']);
             foreach ($_template->required_plugins as $code => $tmp1) {
                 foreach ($tmp1 as $name => $tmp) {
                     foreach ($tmp as $type => $data) {
                         $_template->parent->required_plugins[$code][$name][$type] = $data;
                     }
                 }
             }
         }
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::end_render($_template);
         }
         // write to cache when nessecary
         if (!$_template->source->recompiled && ($_template->caching == Smarty::CACHING_LIFETIME_SAVED || $_template->caching == Smarty::CACHING_LIFETIME_CURRENT)) {
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::start_cache($_template);
             }
             $_template->properties['has_nocache_code'] = false;
             // get text between non-cached items
             $cache_split = preg_split("!/\\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*/!s", $_output);
             // get non-cached items
             preg_match_all("!/\\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*/!s", $_output, $cache_parts);
             $output = '';
             // loop over items, stitch back together
             foreach ($cache_split as $curr_idx => $curr_split) {
                 // escape PHP tags in template content
                 $output .= preg_replace('/(<%|%>|<\\?php|<\\?|\\?>)/', "<?php echo '\$1'; ?>\n", $curr_split);
                 if (isset($cache_parts[0][$curr_idx])) {
                     $_template->properties['has_nocache_code'] = true;
                     // remove nocache tags from cache output
                     $output .= preg_replace("!/\\*/?%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*/!", '', $cache_parts[0][$curr_idx]);
                 }
             }
             if (!$no_output_filter && !$_template->has_nocache_code && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {
                 $output = Smarty_Internal_Filter_Handler::runFilter('output', $output, $_template);
             }
             // rendering (must be done before writing cache file because of {function} nocache handling)
             /** @var Smarty_Internal_Template $_smarty_tpl
              * used in evaluated code
              */
             $_smarty_tpl = $_template;
             try {
                 ob_start();
                 /// dark edit
                 \Dark\SmartyView\SmartyEngine::integrateViewComposers($_template);
                 /// end edit
                 eval("?>" . $output);
                 $_output = ob_get_clean();

//.........这里部分代码省略.........
                 if ($this->smarty->debugging) {
                     Smarty_Internal_Debug::start_render($_template);
                 }
                 try {
                     ob_start();
                     $_template->source->renderUncompiled($_template);
                 } catch (Exception $e) {
                     ob_get_clean();
                     throw $e;
                 }
             } else {
                 throw new SmartyException("Resource '{$_template->source}->type' must have 'renderUncompiled' method");
             }
         }
         $_output = ob_get_clean();
         if (!$_template->source->recompiled && empty($_template->properties['file_dependency'][$_template->source->uid])) {
             $_template->properties['file_dependency'][$_template->source->uid] = array($_template->source->filepath, $_template->source->timestamp, $_template->source->type);
         }
         if ($_template->parent instanceof Smarty_Internal_Template) {
             $_template->parent->properties['file_dependency'] = array_merge($_template->parent->properties['file_dependency'], $_template->properties['file_dependency']);
             foreach ($_template->required_plugins as $code => $tmp1) {
                 foreach ($tmp1 as $name => $tmp) {
                     foreach ($tmp as $type => $data) {
                         $_template->parent->required_plugins[$code][$name][$type] = $data;
                     }
                 }
             }
         }
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::end_render($_template);
         }
         if (!$_template->source->recompiled && ($_template->caching == Smarty::CACHING_LIFETIME_SAVED || $_template->caching == Smarty::CACHING_LIFETIME_CURRENT)) {
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::start_cache($_template);
             }
             $_template->properties['has_nocache_code'] = false;
             $cache_split = preg_split("!/\\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*/!s", $_output);
             preg_match_all("!/\\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*/!s", $_output, $cache_parts);
             $output = '';
             foreach ($cache_split as $curr_idx => $curr_split) {
                 $output .= preg_replace('/(<%|%>|<\\?php|<\\?|\\?>)/', '<?php echo \'$1\'; ?>', $curr_split);
                 if (isset($cache_parts[0][$curr_idx])) {
                     $_template->properties['has_nocache_code'] = true;
                     $output .= preg_replace("!/\\*/?%%SmartyNocache:{$_template->properties['nocache_hash']}%%\\*/!", '', $cache_parts[0][$curr_idx]);
                 }
             }
             if (!$no_output_filter && !$_template->has_nocache_code && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {
                 $output = Smarty_Internal_Filter_Handler::runFilter('output', $output, $_template);
             }
             $_smarty_tpl = $_template;
             try {
                 ob_start();
                 eval("?>" . $output);
                 $_output = ob_get_clean();
             } catch (Exception $e) {
                 ob_get_clean();
                 throw $e;
             }
             $_template->writeCachedContent($output);
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::end_cache($_template);
             }
         } else {
             if (!empty($_template->properties['nocache_hash']) && !empty($_template->parent->properties['nocache_hash'])) {
                 $_output = str_replace("{$_template->properties['nocache_hash']}", $_template->parent->properties['nocache_hash'], $_output);
                 $_template->parent->has_nocache_code = $_template->parent->has_nocache_code || $_template->has_nocache_code;

//.........这里部分代码省略.........
         // disable caching for evaluated code
         if ($this->source->recompiled) {
             $this->caching = false;
         }
         $_caching = $this->caching == Smarty::CACHING_LIFETIME_CURRENT || $this->caching == Smarty::CACHING_LIFETIME_SAVED;
         // read from cache or render
         if ($_caching && !isset($this->cached)) {
             $this->cached = Smarty_Template_Cached::load($this);
         }
         if (!$_caching || !$this->cached->valid) {
             // render template (not loaded and not in cache)
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::start_render($this, null);
             }
             if (isset($this->cached)) {
                 $_savedContext = $this->context;
                 $this->context = new Smarty_Internal_Context(true);
             }
             if (!$this->source->uncompiled) {
                 // render compiled code
                 if (!isset($this->compiled)) {
                     $this->compiled = Smarty_Template_Compiled::load($this);
                 }
                 $this->compiled->render($this);
             } else {
                 $this->source->renderUncompiled($this);
             }
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::end_render($this, null);
             }
             // write to cache when necessary
             if ($_caching && !$this->source->recompiled) {
                 if ($this->smarty->debugging) {
                     Smarty_Internal_Debug::start_cache($this);
                 }
                 // write cache file content
                 if ($runOutputFilter && !$this->context->hasNocacheCode && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {
                     $this->cached->writeCachedContent($this, $this->context, Smarty_Internal_Filter_Handler::runFilter('output', $this->context->getContent(), $this));
                 } else {
                     $this->cached->writeCachedContent($this, $this->context);
                 }
                 $this->context = $_savedContext;
                 $compile_check = $this->smarty->compile_check;
                 $this->smarty->compile_check = false;
                 if (!$this->cached->processed) {
                     $this->cached->process($this);
                 }
                 $this->smarty->compile_check = $compile_check;
                 $this->cached->compiledTplObj->getRenderedTemplateCode($this);
                 if ($this->smarty->debugging) {
                     Smarty_Internal_Debug::end_cache($this);
                 }
             }
         } else {
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::start_cache($this);
             }
             $this->cached->render($this);
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::end_cache($this);
             }
         }
         if ($runOutputFilter && (!$this->caching || $this->context->hasNocacheCode || $this->source->recompiled) && (isset($this->smarty->autoload_filters['output']) || isset($this->smarty->registered_filters['output']))) {
             $this->context->flushBuffer();
             $this->context->content = Smarty_Internal_Filter_Handler::runFilter('output', $this->context->content, $this);
         }

 /**
  * Render the output using the compiled template or the PHP template source
  * 
  * The rendering process is accomplished by just including the PHP files.
  * The only exceptions are evaluated templates (string template). Their code has 
  * to be evaluated
  */
 public function renderTemplate()
 {
     if ($this->resource_object->usesCompiler) {
         if ($this->mustCompile() && $this->compiled_template === null) {
             $this->compileTemplateSource();
         }
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::start_render($this);
         }
         $_smarty_tpl = $this;
         ob_start();
         if ($this->resource_object->isEvaluated) {
             eval("?>" . $this->compiled_template);
         } else {
             include $this->getCompiledFilepath();
             // check file dependencies at compiled code
             if ($this->smarty->compile_check) {
                 if (!empty($this->properties['file_dependency'])) {
                     $this->mustCompile = false;
                     foreach ($this->properties['file_dependency'] as $_file_to_check) {
                         $this->getResourceTypeName($_file_to_check[0], $resource_type, $resource_name);
                         if ($resource_type == 'file') {
                             $mtime = filemtime($_file_to_check[0]);
                         } else {
                             $resource_handler = $this->loadTemplateResourceHandler($resource_type);
                             $mtime = $resource_handler->getTemplateTimestampTypeName($resource_type, $resource_name);
                         }
                         // If ($mtime != $_file_to_check[1]) {
                         if ($mtime > $_file_to_check[1]) {
                             $this->mustCompile = true;
                             break;
                         }
                     }
                     if ($this->mustCompile) {
                         // recompile and render again
                         ob_get_clean();
                         $this->compileTemplateSource();
                         ob_start();
                         include $this->getCompiledFilepath();
                     }
                 }
             }
         }
     } else {
         if (is_callable(array($this->resource_object, 'renderUncompiled'))) {
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::start_render($this);
             }
             ob_start();
             $this->resource_object->renderUncompiled($this);
         } else {
             throw new Exception("Resource '{$this->resource_type}' must have 'renderUncompiled' methode");
         }
     }
     $this->rendered_content = ob_get_clean();
     if (!$this->resource_object->isEvaluated && empty($this->properties['file_dependency'][$this->templateUid])) {
         $this->properties['file_dependency'][$this->templateUid] = array($this->getTemplateFilepath(), $this->getTemplateTimestamp());
     }
     if ($this->parent instanceof Smarty_Template or $this->parent instanceof Smarty_Internal_Template) {
         $this->parent->properties['file_dependency'] = array_merge($this->parent->properties['file_dependency'], $this->properties['file_dependency']);
         $this->parent->required_plugins['compiled'] = array_merge($this->parent->required_plugins['compiled'], $this->required_plugins['compiled']);
         $this->parent->required_plugins['cache'] = array_merge($this->parent->required_plugins['cache'], $this->required_plugins['cache']);
     }
     if ($this->smarty->debugging) {
         Smarty_Internal_Debug::end_render($this);
     }
     // write to cache when nessecary
     if (!$this->resource_object->isEvaluated && ($this->caching == SMARTY_CACHING_LIFETIME_SAVED || $this->caching == SMARTY_CACHING_LIFETIME_CURRENT)) {
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::start_cache($this);
         }
         $this->properties['has_nocache_code'] = false;
         // get text between non-cached items
         $cache_split = preg_split("!/\\*%%SmartyNocache:{$this->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmartyNocache:{$this->properties['nocache_hash']}%%\\*/!s", $this->rendered_content);
         // get non-cached items
         preg_match_all("!/\\*%%SmartyNocache:{$this->properties['nocache_hash']}%%\\*\\/(.+?)/\\*/%%SmartyNocache:{$this->properties['nocache_hash']}%%\\*/!s", $this->rendered_content, $cache_parts);
         $output = '';
         // loop over items, stitch back together
         foreach ($cache_split as $curr_idx => $curr_split) {
             // escape PHP tags in template content
             $output .= preg_replace('/(<%|%>|<\\?php|<\\?|\\?>)/', '<?php echo \'$1\'; ?>', $curr_split);
             if (isset($cache_parts[0][$curr_idx])) {
                 $this->properties['has_nocache_code'] = true;
                 // remove nocache tags from cache output
                 $output .= preg_replace("!/\\*/?%%SmartyNocache:{$this->properties['nocache_hash']}%%\\*/!", '', $cache_parts[0][$curr_idx]);
             }
         }
         // rendering (must be done before writing cache file because of {function} nocache handling)
         $_smarty_tpl = $this;
         ob_start();
         eval("?>" . $output);
         $this->rendered_content = ob_get_clean();
         // write cache file content
//.........这里部分代码省略.........

 /**
  * @param Smarty_Internal_Template $_template
  *
  * @return Smarty_Template_Cached
  */
 static function load(Smarty_Internal_Template $_template)
 {
     $_template->cached = $cached = new Smarty_Template_Cached($_template);
     //
     //    check if cache is valid
     //
     if (!($_template->caching == Smarty::CACHING_LIFETIME_CURRENT || $_template->caching == Smarty::CACHING_LIFETIME_SAVED) || $_template->source->recompiled) {
         $cached->handler->populate($cached, $_template);
         return $cached;
     }
     while (true) {
         while (true) {
             $cached->handler->populate($cached, $_template);
             if ($cached->timestamp === false || $_template->smarty->force_compile || $_template->smarty->force_cache) {
                 $cached->valid = false;
             } else {
                 $cached->valid = true;
             }
             if ($cached->valid && $_template->caching == Smarty::CACHING_LIFETIME_CURRENT && $_template->cache_lifetime >= 0 && time() > $cached->timestamp + $_template->cache_lifetime) {
                 // lifetime expired
                 $cached->valid = false;
             }
             if ($cached->valid || !$_template->smarty->cache_locking) {
                 break;
             }
             if (!$cached->handler->locked($_template->smarty, $cached)) {
                 $cached->handler->acquireLock($_template->smarty, $cached);
                 break 2;
             }
         }
         if ($cached->valid) {
             if (!$_template->smarty->cache_locking || $cached->handler->locked($_template->smarty, $cached) === null) {
                 // load cache file for the following checks
                 if ($_template->smarty->debugging) {
                     Smarty_Internal_Debug::start_cache($_template);
                 }
                 $cached->process($_template);
                 if ($_template->smarty->debugging) {
                     Smarty_Internal_Debug::end_cache($_template);
                 }
             } else {
                 continue;
             }
         } else {
             return $cached;
         }
         if ($cached->valid && $_template->caching === Smarty::CACHING_LIFETIME_SAVED && $_template->properties['cache_lifetime'] >= 0 && time() > $_template->cached->timestamp + $_template->properties['cache_lifetime']) {
             $cached->valid = false;
         }
         if (!$cached->valid && $_template->smarty->cache_locking) {
             $cached->handler->acquireLock($_template->smarty, $cached);
             return $cached;
         } else {
             return $cached;
         }
     }
 }

 /**
  * Render the output using the compiled template or the PHP template source
  * 
  * The rendering process is accomplished by just including the PHP files.
  * The only exceptions are evaluated templates (string template). Their code has 
  * to be evaluated
  */
 public function renderTemplate()
 {
     if ($this->usesCompiler()) {
         if ($this->mustCompile() && $this->compiled_template === null) {
             $this->compileTemplateSource();
         }
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::start_render($this);
         }
         $_smarty_tpl = $this;
         ob_start();
         if ($this->isEvaluated()) {
             eval("?>" . $this->compiled_template);
         } else {
             include $this->getCompiledFilepath();
             // check file dependencies at compiled code
             if ($this->smarty->compile_check) {
                 if (!empty($this->properties['file_dependency'])) {
                     $this->mustCompile = false;
                     foreach ($this->properties['file_dependency'] as $_file_to_check) {
                         $this->getResourceTypeName($_file_to_check[0], $resource_type, $resource_name);
                         if ($resource_type == 'file') {
                             $mtime = filemtime($_file_to_check[0]);
                         } else {
                             $resource_handler = $this->loadTemplateResourceHandler($resource_type);
                             $mtime = $resource_handler->getTemplateTimestampTypeName($resource_type, $resource_name);
                         }
                         //                            If ($mtime != $_file_to_check[1]) {
                         if ($mtime > $_file_to_check[1]) {
                             $this->properties['file_dependency'] = array();
                             $this->mustCompile = true;
                             break;
                         }
                     }
                     if ($this->mustCompile) {
                         // recompile and render again
                         ob_get_clean();
                         $this->compileTemplateSource();
                         ob_start();
                         include $this->getCompiledFilepath();
                     }
                 }
             }
         }
     } else {
         if (is_callable(array($this->resource_object, 'renderUncompiled'))) {
             if ($this->smarty->debugging) {
                 Smarty_Internal_Debug::start_render($this);
             }
             ob_start();
             $this->resource_object->renderUncompiled($this);
         } else {
             throw new Exception("Resource '{$this->resource_type}' must have 'renderUncompiled' methode");
         }
     }
     $this->rendered_content = ob_get_clean();
     if (!$this->isEvaluated) {
         $this->properties['file_dependency']['F' . abs(crc32($this->getTemplateFilepath()))] = array($this->getTemplateFilepath(), $this->getTemplateTimestamp());
     }
     if ($this->parent instanceof Smarty_Template or $this->parent instanceof Smarty_Internal_Template) {
         // var_dump('merge ', $this->parent->getTemplateFilepath(), $this->parent->properties['file_dependency'], $this->getTemplateFilepath(), $this->properties['file_dependency']);
         $this->parent->properties['file_dependency'] = array_merge($this->parent->properties['file_dependency'], $this->properties['file_dependency']);
     }
     if ($this->smarty->debugging) {
         Smarty_Internal_Debug::end_render($this);
     }
     // write to cache when nessecary
     if (!$this->isEvaluated() && ($this->caching == SMARTY_CACHING_LIFETIME_SAVED || $this->caching == SMARTY_CACHING_LIFETIME_CURRENT)) {
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::start_cache($this);
         }
         // write rendered template
         $this->writeCachedContent($this);
         // cache file may contain nocache code. read it back for processing
         $this->rendered_content = $this->cache_resource_object->getCachedContents($this);
         if ($this->smarty->debugging) {
             Smarty_Internal_Debug::end_cache($this);
         }
     }
 }