[wp-trac] [WordPress Trac] #49442: Request: filter for parse_blocks() result

[WordPress Trac]

#49442: Request: filter for parse_blocks() result
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 Reporter:  dougwollison               |       Owner:  (none)
     Type:  feature request            |      Status:  new
 Priority:  normal                     |   Milestone:  6.9
Component:  General                    |     Version:  5.0
 Severity:  normal                     |  Resolution:
 Keywords:  has-patch needs-test-info  |     Focuses:
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Comment (by justlevine):

 With some helpful pointers from @SirLouen , I added the following PHPUnit
 tests. It's possible they'd exist better as a manual "test use case" and
 my desire to get this into core pushed me overboard 😇.

 === Test use cases ===

 1. Changing individual properties - the most straightforward use of
 `add_filter( 'parse_blocks', ...)` that will allow us to decouple
 rendering from parsing

 2. An example caching implementation:
    1. `parse_blocks` filter adds a cache ID to the block atts
    2. `render_block` filter stores the rendered block in `wp_cache_*()`
    3. `pre_render_block` returns the cached block early, so it doesn't
 need to be re-rendered.

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Ticket URL: <https://core.trac.wordpress.org/ticket/49442#comment:22>
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