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When mapping phantom comments across changes, correct an off-by-one issue

Authored by epriestley on Feb 21 2021, 5:03 PM.



Ref T13617. When an inline comment is added inside a block of added lines, it currently ends up off-by-one when porting forward.

This is a disagreement between the mapping engine and the display engine about what "offset" means. Choose the simpler of the two interpretations.

Test Plan
  • Created a revision with the diff in T13617.
  • Added an inline in the middle of the added block.
  • Updated the revision with the same diff.
    • Before: inline incorrectly moves up by one line.
    • After: inline maps correctly.

Diff Detail

rP Phabricator
Lint Not Applicable
Tests Not Applicable

Event Timeline

This revision was not accepted when it landed; it landed in state Needs Review.Feb 23 2021, 7:08 PM
This revision was automatically updated to reflect the committed changes.