How does -[NSRunLoop performBlock:] interact with run loop modes?

UI Frameworks AppKit
cbfiddle OP
Created Jun ’23
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The documentation is silent on this question. I can imagine several possibilities:

  • The block is performed regardless of the run loop mode.
  • The block is performed in the default run loop mode.
  • The block is performed in any of the common run loop modes.

(I shouldn't have to write a test program to figure this out!)

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DTS Engineer OP
Apple
Jun ’23

-performBlock: is equivalent to calling -performInModes:block: while passing in an array containing the default run loop mode.

The documentation is silent on this question.

Please do file a bug against the docs about this.

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How does -[NSRunLoop performBlock:] interact with run loop modes?
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