From 70325b39523728f005149d393b9e989400997269 Mon Sep 17 00:00:00 2001
From: "C. Scott Ananian" <cscott@cscott.net>
Date: Wed, 26 Aug 2020 18:45:15 -0400
Subject: [PATCH] Remove <metadesc>

The {{description2}} parser function is still present. The <metadesc>
hooks was just added "so that Description2 can be used as a
replacement for Extension:MetaDescriptionTag", but MW 1.35 deprecated
and 1.36 removed support for Parser::setFunctionTagHook.

Bug: T236809
Change-Id: I53710f0d0a7bc8de4a3404b6df9ccbd1381cf36d
---
 includes/Description2.php | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/includes/Description2.php b/includes/Description2.php
index 29e0e7d..c14e74d 100644
--- a/includes/Description2.php
+++ b/includes/Description2.php
@@ -81,11 +81,6 @@ class Description2 {
 			[ static::class, 'parserFunctionCallback' ],
 			Parser::SFH_OBJECT_ARGS
 		);
-		$parser->setFunctionTagHook(
-			'metadesc',
-			[ static::class, 'tagCallback' ],
-			Parser::SFH_OBJECT_ARGS
-		);
 		return true;
 	}
 
@@ -101,22 +96,6 @@ class Description2 {
 		return '';
 	}
 
-	/**
-	 * @param Parser $parser The parser.
-	 * @param PPFrame $frame Not used.
-	 * @param string $content The contents of the tag (if any).
-	 * @param string[] $attributes The tag attributes (if any).
-	 * @return string
-	 */
-	public static function tagCallback( Parser $parser, PPFrame $frame, $content, $attributes ) {
-		$contentAttr = isset( $attributes['content'] ) ? $attributes['content'] : null;
-		$desc = isset( $content ) ? $content : $contentAttr;
-		if ( isset( $desc ) ) {
-			self::setDescription( $parser, $desc );
-		}
-		return '';
-	}
-
 	/**
 	 * @param OutputPage &$out The output page to add the meta element to.
 	 * @param ParserOutput $parserOutput The parser output to get the description from.