resolve: memoize bare_call_receiver + generated-path scan by bompus · Pull Request #570 · bompus/codegraph

bompus · 2026-10-28T00:50:06Z

Summary

Next-tier wins from the gate-cost analysis (all same-verdict transforms):

bare_call_receiver answered the same question once per same-file candidate — file LRU hit + memmem scan + up to 8-line join each time. Now memoized on a content hash of the ref's fields (no allocs, no pointer aliasing, dedupes identical refs too).
The >256-pool generated-share scan ran is_generated_file's ~25 regexes per candidate; pools share few unique file paths — memoized per path (gen_path_memo).

Validation

kernel-resolve-parity.test.ts: 8/8, kernel quick build clean.
Same-verdict transforms only — memoization, no gate semantics changed.

Summary by CodeRabbit

Improvements
- Repeated name-resolution checks now reuse previously computed results for generated-file paths and bare-call receivers.
- Generated-name matching uses the resolver’s cached path checks, while existing matching thresholds remain unchanged.

bare_call_receiver answers the same question once per same-file candidate — file LRU hit, memmem scan, and up to an 8-line join each time. Memoize by ref address (stable within a chunk Vec) and clear at every chunk-loop head so a reallocated Vec can never hit stale entries. The >256-pool generated-share scan ran is_generated_file's ~25 regexes per candidate; memoize per unique file path.

- bare_call_receiver answers the same question once per same-file candidate — file LRU hit, memmem scan, possible 8-line join each time. Memoize on a content hash of the ref's identifying fields (no alloc, no pointer aliasing, dedupes identical refs). - The >256-pool generated-share scan ran is_generated_file's ~25 regexes per candidate; pools share few unique paths — memoize per path.

coderabbitai · 2026-10-28T00:50:16Z

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Reviewing files that changed from the base of the PR and between 7a2f240 and 1eedb61.

Files selected for processing: 1

codegraph-kernel/src/resolve/mod.rs

Walkthrough

KernelResolver now memoizes generated-file checks by path and bare-call receiver results by reference fields. Exact and fuzzy name-pool guards use the cached generated-file check.

Changes: Resolver memoization

Layer / File(s)	Summary
Generated-path cache and name-pool checks `codegraph-kernel/src/resolve/mod.rs`, `codegraph-kernel/src/resolve/names.rs`	KernelResolver stores generated-file check results by path. Exact and fuzzy name-pool guards use `self.is_gen_path`.
Bare-call receiver cache `codegraph-kernel/src/resolve/overloads_upstream.rs`	`bare_call_receiver` caches results using reference fields as the key and delegates cache misses to `bare_call_receiver_uncached`.

Possibly related PRs

bompus/codegraph#565: Adds generated-source gating to exact and fuzzy name matching, which this change updates to use memoized generated-file checks.

Priority: Low

Merge Risk: Low · previous review 7a2f2

Large resolution runs may retain unnecessary memoized state and source files; clear both caches at batch boundaries before merging.

Pre-merge checks: 6

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the two main changes: memoizing `bare_call_receiver` and generated-path scans.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.
Suppressions Explained		The pull request changes only three Rust resolver files. Added lines introduce memo fields, cache initialization, path-cache logic, and receiver memoization. No added line contains a lint, type-check,…
User-Visible Changes Documented		The pull request changes only internal resolver memoization in three Rust files. The diff adds cache fields and a private helper, and replaces internal generated-path checks. It does not add, remove, …

Full details: Suppressions Explained

Explanation

The pull request changes only three Rust resolver files. Added lines introduce memo fields, cache initialization, path-cache logic, and receiver memoization. No added line contains a lint, type-check, compiler-suppression, or ignore directive, and no lint or type-check configuration file changed.

Full details: User-Visible Changes Documented

Explanation

The pull request changes only internal resolver memoization in three Rust files. The diff adds cache fields and a private helper, and replaces internal generated-path checks. It does not add, remove, or rename a CLI command or flag, MCP tool or argument, supported language or framework, agent target, or config key. No README.md or site documentation update is required.

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bompus · 2026-10-28T01:04:46Z

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coderabbitai · 2026-10-28T01:04:51Z

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Actionable comments posted: 1

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Inline comments:
Review comments at @codegraph-kernel/src/resolve/overloads_upstream.rs:
- Around line 920-935: Clear both bare_receiver_memo and gen_path_memo at the
start of resolve_chunk, resolve_deferred_this_members, and
resolve_deferred_chains. Keep memoization within each entry-point call and
preserve existing resolver and gate behavior.

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Source mode: Auto
Repository: bompus/codegraph
Branch: perf/resolve-memo-batch2
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Commit: 7a2f240
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Reviewing files that changed from the base of the PR and between 2d385c6 and 7a2f240.

Files selected for processing: 3

codegraph-kernel/src/resolve/mod.rs
codegraph-kernel/src/resolve/names.rs
codegraph-kernel/src/resolve/overloads_upstream.rs

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The bare-receiver and generated-path memos only need intra-batch reuse; clearing per resolve_chunk/deferred call also drops pinned SourceFiles. (CodeRabbit #570)

bompus · 2026-10-28T01:31:02Z

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coderabbitai · 2026-10-28T01:31:08Z

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bompus added 2 commits October 27, 2026 18:48

coderabbitai Bot reviewed Oct 28, 2026

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Comment thread codegraph-kernel/src/resolve/overloads_upstream.rs

resolve: bound the batch memos at each entry point

1eedb61

The bare-receiver and generated-path memos only need intra-batch reuse; clearing per resolve_chunk/deferred call also drops pinned SourceFiles. (CodeRabbit #570)

bompus merged commit e31b894 into fork/consolidated Oct 28, 2026
4 checks passed

bompus deleted the perf/resolve-memo-batch2 branch October 28, 2026 01:33

bompus mentioned this pull request Oct 28, 2026

docs: record #566–#572 follow-up merges, head 645abbb8 #573

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resolve: memoize bare_call_receiver + generated-path scan - #570

resolve: memoize bare_call_receiver + generated-path scan#570
bompus merged 3 commits into
fork/consolidatedfrom
perf/resolve-memo-batch2

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