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# Objective Fix a nightly crash where Zed aborts on a bounds-check panic in the inlay hint cache. `LspStore::inlay_hints` captures a `RowChunk` before awaiting the language server, then reads the hint cache with that chunk's id afterwards. If the buffer shrank meanwhile, `latest_lsp_data` has already rebuilt the cache with fewer chunks, so the stale id indexes out of bounds. Chunks are 50 rows, so the reported crash only needed a ~150-250 line deletion, not a drastic edit. Regressed in #61523. Nightly only; the regressing commit is in no release tag, so this never reached preview or stable. Fixes ZED-AGY Fixes FR-142 ## Solution - Return an empty result when the buffer version no longer matches, so a stale chunk id can never index the rebuilt cache. The stale *writes* were already guarded by this version check; only the read sat outside it. - An empty result is already treated as "not fetched", so the chunk is simply re-requested on the next refresh. ## Testing `test_inlay_hint_response_after_buffer_shrinks` reproduces the abort deterministically and passes with the fix. Note that it drives the race through a fake language server rather than a real one. ## Self-Review Checklist: - [x] I've reviewed my own diff for quality, security, and reliability - [x] Unsafe blocks (if any) have justifying comments - [x] The content adheres to Zed's UI standards ([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist) and [icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md) guidelines) - [x] Tests cover the new/changed behavior - [x] Performance impact has been considered and is acceptable --- Release Notes: - N/A |
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| .. | ||
| context_server_store | ||
| debugger | ||
| git_store | ||
| lsp_command | ||
| lsp_store | ||
| manifest_tree | ||
| agent_registry_store.rs | ||
| agent_server_store.rs | ||
| bookmark_store.rs | ||
| buffer_store.rs | ||
| color_extractor.rs | ||
| connection_manager.rs | ||
| context_server_store.rs | ||
| debounced_delay.rs | ||
| debugger.rs | ||
| environment.rs | ||
| git_store.rs | ||
| image_store.rs | ||
| lsp_command.rs | ||
| lsp_store.rs | ||
| manifest_tree.rs | ||
| prettier_store.rs | ||
| project.rs | ||
| project_search.rs | ||
| project_settings.rs | ||
| search.rs | ||
| search_history.rs | ||
| task_inventory.rs | ||
| task_store.rs | ||
| telemetry_snapshot.rs | ||
| terminals.rs | ||
| toolchain_store.rs | ||
| trusted_worktrees.rs | ||
| worktree_store.rs | ||
| yarn.rs | ||