[wp-trac] [WordPress Trac] #56215: Introduce `is_term_publicly_viewable()` function

[WordPress Trac]

#56215: Introduce `is_term_publicly_viewable()` function
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 Reporter:  johnbillion  |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Taxonomy     |    Version:
 Severity:  normal       |   Keywords:  needs-patch needs-unit-tests
  Focuses:               |
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 In #49380 the `is_post_publicly_viewable()` function was introduced which
 encapsulates the logic used to determine if a post type is visible to
 anonymous users.

 We should do the same for terms via an `is_term_publicly_viewable()`
 function. Although the logic for terms is more straight forward this
 serves the same purpose as introducing the corresponding function for
 posts -- to centralise and reduce the logic needed to validate a term and
 determine if it's publicly viewable.

 There are several places in core that would benefit from an additional
 "viewable" check before outputting a link to a term, but those changes can
 happen in a follow-up ticket.

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Ticket URL: <https://core.trac.wordpress.org/ticket/56215>
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