We have various classes in MediaWiki that are extremely "heavy", "god objects". This task seeks to bring together the various already-in-progress and proposed efforts to improve this situation.

Possible "holder" classes to slim down:

• Article / WikiPage
  • T246867: Proposal after WikiPage/Article split
  • T239975: Complete WikiPage/Article split and deprecate Page interface
  • …
• File / LocalFile
  • …
• MediaWiki\Language\Language
  • T376565: Split out retrieving language code from Language object
  • …
• MediaWiki\Title\Title
  • T278459: Replace Title parameters with PageIdentity (straight forward cases)
  • …
• MediaWiki\User\User
  • T231930: Introduce Authority objects to represent the user performing a given action
  • …
• Skin
  • T293289: [GOAL] Componentize Skin classes
  • …