[GH-ISSUE #667] Renderer diff uses grapheme pool IDs as identity #180

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opened 2026-03-02 23:45:06 +03:00 by kerem · 0 comments

kerem commented

2026-03-02 23:45:06 +03:00

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Originally created by @simonklee on GitHub (Feb 10, 2026).
Original GitHub issue: https://github.com/anomalyco/opentui/issues/667

Originally assigned to: @simonklee on GitHub.

Cell.char for graphemes is an allocation handle (class|generation|slot), but diff treats it as content identity; because graphemes are reallocated each frame, IDs churn and diff correctness/perf break.

#666

Originally created by @simonklee on GitHub (Feb 10, 2026). Original GitHub issue: https://github.com/anomalyco/opentui/issues/667 Originally assigned to: @simonklee on GitHub. Cell.char for graphemes is an allocation handle (class|generation|slot), but diff treats it as content identity; because graphemes are reallocated each frame, IDs churn and diff correctness/perf break. #666