includeCache directive

lib/Cache.php

@@ -1,8 +1,17 @@
 <?php
 class Cache {
+	protected static $includeCache = [];
 	protected static $templateCache = [];
 	protected static $resourceCache = [];
 
+	public static function getIncludeCache(string $name) {
+		return isset(self::$includeCache[$name]) ? self::$includeCache[$name] : null;
+	}
+
+	public static function setIncludeCache(string $name, $data) {
+		self::$includeCache[$name] = $data;
+	}
+
 	public static function getTemplateFromCache(string $name) {
 		if (isset(self::$templateCache[$name])) {
 			return self::$templateCache[$name];

lib/Template.php

@@ -30,16 +30,32 @@ class Template {
 		$class->pretransform();
 		// Replace includes of templates
 		$matches = array();
-		preg_match_all("/{{include (.*\.html)(.*)}}/", $contents, $matches);
+		preg_match_all("/{{(include|includeCached) (.*\.html)(.*)}}/", $contents, $matches);
 		for ($i = 0; $i < count($matches[1]); $i++) {
 			$matchString = $matches[0][$i];
-			$match = $matches[1][$i];
+			$method = $matches[1][$i];
-			$options = trim($matches[2][$i]);
+			$match = $matches[2][$i];
+			$options = trim($matches[3][$i]);
+
+			if ($method === "includeCached") {
+				$crc = hash("crc32b", $match . $options);
+				$include = Cache::getIncludeCache($crc);
+				if (!is_null($include)) {
+					$contents = str_replace($matchString, $include, $contents);
+					continue;
+				}
+			}
 
 			$include = new Template(dirname($this->template) . "/" . $match, $this->data);
-			$contents = str_replace($matchString, $include->render(
+			$rendered = $include->render(
 				!empty($options) ? json_decode($options, false, 512, JSON_THROW_ON_ERROR) : null
-			), $contents);
+			);
+
+			if ($method === "includeCached") {
+				Cache::setIncludeCache($crc, $rendered);
+			}
+
+			$contents = str_replace($matchString, $rendered, $contents);
 		}
 
 		$class->transform();