From 1b2448770ab826d7b3471fe93039771d4153f246 Mon Sep 17 00:00:00 2001
From: Joe McGill <joe.mcgill@10up.com>
Date: Wed, 8 Nov 2023 18:16:06 -0600
Subject: [PATCH] Remove memoization

---
 src/wp-includes/theme.php | 80 ++++++++++++++-------------------------
 1 file changed, 28 insertions(+), 52 deletions(-)

diff --git a/src/wp-includes/theme.php b/src/wp-includes/theme.php
index 6315cc2ab5ce2..a943061f52fc6 100644
--- a/src/wp-includes/theme.php
+++ b/src/wp-includes/theme.php
@@ -188,39 +188,27 @@ function get_stylesheet() {
  *
  * @since 1.5.0
  * @since 6.4.0 Memoizes filter execution so that it only runs once for the current theme.
+ * @since 6.4.1 Memoization removed.
  *
  * @global string $wp_stylesheet_path Current theme stylesheet directory path.
  *
  * @return string Path to active theme's stylesheet directory.
  */
 function get_stylesheet_directory() {
-	global $wp_stylesheet_path;
+	$stylesheet     = get_stylesheet();
+	$theme_root     = get_theme_root( $stylesheet );
+	$stylesheet_dir = "$theme_root/$stylesheet";
 
-	if ( null === $wp_stylesheet_path ) {
-		$stylesheet     = get_stylesheet();
-		$theme_root     = get_theme_root( $stylesheet );
-		$stylesheet_dir = "$theme_root/$stylesheet";
-
-		/**
-		 * Filters the stylesheet directory path for the active theme.
-		 *
-		 * @since 1.5.0
-		 *
-		 * @param string $stylesheet_dir Absolute path to the active theme.
-		 * @param string $stylesheet     Directory name of the active theme.
-		 * @param string $theme_root     Absolute path to themes directory.
-		 */
-		$stylesheet_dir = apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root );
-
-		// If there are filter callbacks, force the logic to execute on every call.
-		if ( has_filter( 'stylesheet' ) || has_filter( 'theme_root' ) || has_filter( 'stylesheet_directory' ) ) {
-			return $stylesheet_dir;
-		}
-
-		$wp_stylesheet_path = $stylesheet_dir;
-	}
-
-	return $wp_stylesheet_path;
+	/**
+	 * Filters the stylesheet directory path for the active theme.
+	 *
+	 * @since 1.5.0
+	 *
+	 * @param string $stylesheet_dir Absolute path to the active theme.
+	 * @param string $stylesheet     Directory name of the active theme.
+	 * @param string $theme_root     Absolute path to themes directory.
+	 */
+	return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root );
 }
 
 /**
@@ -338,39 +326,27 @@ function get_template() {
  *
  * @since 1.5.0
  * @since 6.4.0 Memoizes filter execution so that it only runs once for the current theme.
+ * @since 6.4.1 Memoization removed.
  *
  * @global string $wp_template_path Current theme template directory path.
  *
  * @return string Path to active theme's template directory.
  */
 function get_template_directory() {
-	global $wp_template_path;
+	$template     = get_template();
+	$theme_root   = get_theme_root( $template );
+	$template_dir = "$theme_root/$template";
 
-	if ( null === $wp_template_path ) {
-		$template     = get_template();
-		$theme_root   = get_theme_root( $template );
-		$template_dir = "$theme_root/$template";
-
-		/**
-		 * Filters the active theme directory path.
-		 *
-		 * @since 1.5.0
-		 *
-		 * @param string $template_dir The path of the active theme directory.
-		 * @param string $template     Directory name of the active theme.
-		 * @param string $theme_root   Absolute path to the themes directory.
-		 */
-		$template_dir = apply_filters( 'template_directory', $template_dir, $template, $theme_root );
-
-		// If there are filter callbacks, force the logic to execute on every call.
-		if ( has_filter( 'template' ) || has_filter( 'theme_root' ) || has_filter( 'template_directory' ) ) {
-			return $template_dir;
-		}
-
-		$wp_template_path = $template_dir;
-	}
-
-	return $wp_template_path;
+	/**
+	 * Filters the active theme directory path.
+	 *
+	 * @since 1.5.0
+	 *
+	 * @param string $template_dir The path of the active theme directory.
+	 * @param string $template     Directory name of the active theme.
+	 * @param string $theme_root   Absolute path to the themes directory.
+	 */
+	return apply_filters( 'template_directory', $template_dir, $template, $theme_root );
 }
 
 /**