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fix(incremental): index a rehydrated definition under its name - #3296
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Parsing registers a method under its qn and its name (`Info` -> `ILog.Info(string)`). Rehydration indexed only the qn's last segment, `Info(string)`, so after an incremental run a re-parsed caller's name-based fallback saw only the same-named method whose qn ends in its name -- a parameterless `Levels.Info()` -- and bound the call there (serilog: all 33 incremental-only heuristic edges). `CYPHER_ALL_DEFINITION_QNS` now returns `n.name`, and a rehydrated definition is indexed under it through a new `FunctionRegistryTrie. index_name`, which also drops a name lookup already cached. Fixes #3261 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EbsCWQcSTGQXv3g5sk418m
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📝 Walkthrough
Merge Risk: ⚪ Minimal · up to Incremental rehydration restores bare-name lookup, and removing a definition clears its cached aliases; no actionable merge risk remains in the reviewed changes. Pre-merge checks |
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| Check name | Status | Explanation |
|---|---|---|
| Title check |  |
The title clearly identifies the primary fix: indexing rehydrated definitions under their bare names during incremental processing. |
| Description check | |
The description follows the required template and clearly explains the problem, cause, fix, demo, issue, tests, known baseline failures, and checklist status. |
| Linked Issues check | |
Issue #3261 is an active direct link. CYPHER_ALL_DEFINITION_QNS now returns n.name. _rehydrate_definition_row restores that name with FunctionRegistryTrie.index_name, which updates the bare-na… |
| Out of Scope Changes check | |
The production changes implement the issue #3261 rehydration data flow. The eval graph double supplies the new query column. The removal-path cache invalidation protects the same name lookup index. Th… |
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Actionable comments posted: 1
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @codebase_rag/function_registry.py:
- Around line 167-168: Track the aliases associated with each qualified name in
the function registry, and update `__delitem__` to invalidate cached
`find_ending_with` results for every alias when a definition is deleted. Ensure
alias removal through `GraphUpdater._drop_module_records` also invalidates the
corresponding cached lookups so a reused updater cannot resolve deleted
definitions.
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📒 Files selected for processing (5)
codebase_rag/constants/graph.pycodebase_rag/function_registry.pycodebase_rag/graph_updater.pycodebase_rag/tests/test_incremental_rehydrated_bare_names.pyevals/cgr_graph.py
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… goes
A definition indexed under a name that is not its qn's last segment
(`Info` for `ILog.Info(string)`, by a parser or by rehydration) stayed in
a `find_ending_with("Info")` answer cached before the file was removed:
`__delitem__` invalidates only `Info(string)`, and `_drop_module_records`
pruned the `Info` set without touching the cache. A reused updater (watch,
MCP) then still resolved calls to the removed method.
`_drop_module_records` now invalidates the cached lookup for every name
whose set it prunes, through a new `FunctionRegistryTrie.invalidate_name`.
That is the one place a name's set loses a qn, so it covers parsed and
rehydrated definitions alike.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0189GTjm5RgmnhgdJvQzar6Y
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Summary
ILog.Info(string)) and duplicate variants (sep@7). A re-parsed caller's name-based fallback then bound the call to whichever same-named method stayed visible. In the repro that is a parameterlessLevels.Info(), for a call passing one argument. A fresh index bindsILog.Info(string). On serilog/serilog, all 33heuristicCALLS edges that existed only in the incremental graph were this case.simple_name_lookup[method_name].add(method_qn). Rehydration went throughfunction_registry[qn] = node_type, andFunctionRegistryTrie.insertindexes only the qn's last segment,Info(string).CYPHER_ALL_DEFINITION_QNSdidn't even return the name.CYPHER_ALL_DEFINITION_QNSreturnsn.name._rehydrate_definition_rowindexes the definition under it through a newFunctionRegistryTrie.index_name(qn, name). That adds the name to the simple-name index, as parsing does, and drops a cachedfind_ending_withanswer for the name. The index is a set, so a name equal to the qn's last segment is a no-op.Demo
The GIF plays the issue's four-file C# repro step by step against Memgraph.
ILog.Info(string m), a parameterlessLevels.Info(), andTests.HellocallingSink.Capture(l => l.Info("hi")).callees Tests.Hello, a comment-only edit toTests.cscommitted, an incrementalcgr start --update-graph, andcalleesagain.ILog.Info(string), butLevels.Infoafter the sync.ILog.Info(string)both times. The new tests pass.Type of Change
Related Issues
Fixes #3261
Test Plan
make test): related suites run, full suite see belowRed/green TDD in
codebase_rag/tests/test_incremental_rehydrated_bare_names.py: a fresh index and then an incremental run, through the stateful graph double.test_a_reparsed_caller_binds_as_a_fresh_index_does: the incremental edge set equals the fresh one.test_a_rehydrated_method_is_indexed_by_its_name:find_ending_with("Info")after rehydration equals the parsed index.test_a_name_indexed_late_reaches_a_lookup_already_cached: a unit test ofindex_nameagainst afind_ending_withanswer cached before it.test_a_name_that_is_its_qns_last_segment_is_indexed_once.Levels.Infois listed once, never twice.index_namecall in the rehydration;index_name.name != last segmentguard was removed: the index is a set, so the guard had no observable effect.test_incremental*,test_reingest*,test_function_registry*,test_registry*,test_graph_updater*,test_eval_double*,test_csharp*,test_java_*,test_rehydrat*andtest_trie*file (121 files): 1,332 passed, 72 skipped._test.go): after an incremental re-parse,b, _ := NewBox(2); b.Size()bindsheuristicto another type'sBag.Sizeinstead ofexactBox.Size:go_function_return_typesof unchanged files is never rehydrated (gin: 279 context_test call keys flip after a commit touching only response_writer.go) #3272) and fix(incremental): keep C# extension methods of unchanged files #3295 ([Bug]: C# incremental sync drops every call to an extension method declared in an unchanged file (b.Describe(),services.AddMyServices()):csharp_extension_methodsis filled only while the declaring class is parsed and never rehydrated (serilog replay: 21 edges intoExtensions.LiteralValuelost) #3275) also add columns toCYPHER_ALL_DEFINITION_QNS; whichever merges later keeps all of them.-n 4): 109 failed, 17,711 passed, 176 skipped. The 109 failures are the same set main fails in this environment (LLM provider keys, the build-binary check, the unreachable-network tests); none is new.Checklist
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