[wp-trac] [WordPress Trac] #59443: Block Supports: Re-use instance of Tag Processor when adding layout classes

[WordPress Trac]

#59443: Block Supports: Re-use instance of Tag Processor when adding layout classes
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 Reporter:  dmsnell                    |       Owner:  isabel_brison
     Type:  enhancement                |      Status:  reopened
 Priority:  normal                     |   Milestone:  6.4
Component:  Editor                     |     Version:  trunk
 Severity:  normal                     |  Resolution:
 Keywords:  gutenberg-merge has-patch  |     Focuses:  performance
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Comment (by isabel_brison):

 The only thing that changed here is that we're now calling the `add_class`
 method once for each classname, whereas before we were calling it once
 overall and adding all the classnames in one go. There are usually 2-4
 classnames in each layout block, so that could explain the change.

 I'm not sure there's much we can do about it, given that `add_class` has
 ceased supporting strings of multiple classes. @dmsnell I don't suppose
 the newly introduced `class_list` method would be any more performant?

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Ticket URL: <https://core.trac.wordpress.org/ticket/59443#comment:21>
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