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Changes between Version 2 and Version 3 of Ticket #36335, comment 251

v2	v3
5	5	To begin with, just moving the existing classes into a PSR-0/4 compliant directory structure and having an autoloader for them would be a great step forwards. It would not require introducing namespaces or using Composer. The classes already seem to have PSR-0/4-compliant names, just not filenames.
6	6
7		PS. Some previous discussion seems to be conflating a classmap with an autoloader. An autoloader requires no code generation, it is simply a function that says "Is the class you want one that begins `WP_` (or `WP\`)? If so, here it is." But ~~to avoid requiring a classmap (and associated code generation) would require consistency in naming conventions for files/directories~~ so that the PHP class file can be easily determined from the class name.
	7	PS. Some previous discussion seems to be conflating a classmap with an autoloader. An autoloader requires no code generation, it is simply a function that says "Is the class you want one that begins `WP_` (or `WP\`)? If so, here it is." But avoiding requiring a classmap (and associated code generation) would need consistency in naming conventions for files/directories (be that PSR-0/4 or whatever) so that the PHP class file can be easily determined from the class name.