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| #[test] | |||
| fn compile_record_variant_body() { | |||
| let source = std::fs::read_to_string("/tmp/test_record_variant.dag").unwrap(); | |||
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This test unconditionally reads /tmp/test_record_variant.dag and calls unwrap(), so it will panic on any clean machine/CI worker that does not have that ad-hoc file pre-created. Because src/v3/compiler/tests/*.rs are normal integration tests, this introduces a deterministic suite failure unrelated to compiler behavior; use an in-repo fixture or inline source text instead.
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| ProductCost(terms_a) => | ||
| match b { | ||
| ConstantCost(_) => True | ||
| LogCost(_) => True | ||
| LinearCost(_) => True |
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The ProductCost/SumCost branches in dominates ignore their term lists and hardcode LinearCost(_) => True and LogCost(_) => True, which does not implement the documented “dominant child summary” rule and yields incorrect asymptotic comparisons. For example, a product whose strongest child is logarithmic can be treated as dominating linear, so drop_dominated/max_path can keep or discard terms incorrectly.
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✅ Ready to merge with three small follow-ups worth capturing in the ROADMAP, plus two dev-only test files that should be removed before merge. Stage 2d substrate scaffold: Dev-only files — please remove before mergeTwo test files look like debugging leftovers:
Neither belongs in the committed test set. If any of them is intended as a real regression test, please (a) rewrite to not depend on Substrate audit —
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| Q | Result |
|---|---|
| Q1 Cardinality | ProductCost(List<SymbolicCost>) and SumCost(List<SymbolicCost>) admit [] and singletons — normalize reduces both to smaller variants, so the canonical post-normalize shape has ≥2 elements. Recovery: NonSingletonList<SymbolicCost> (Track 9 vocabulary). |
| Q2 Index/handle | PolynomialCost { var, degree: Int } — domain constraint is degree ≥ 2 post-normalize (degree=1 collapses to Linear; degree=0 to Constant). Recovery: typed degree carrier (NonNegativeInt minimally; ideally DegreeAtLeastTwo). |
| Q3 Duplicated fact | ✅ No duplicated fields |
| Q4 Coproduct compression | ✅ 7 variants each distinct; UnknownCost(String) is the explicit fail-open escape with STOP SIGNAL guarding against an 8th variant |
| Q5 Construction authority | ✅ No conflicting construction sites |
| Q6 Representation duality | LinearCost(v) vs PolynomialCost(v, 1) — two structurally different shapes encode the same fact. dominates and normalize pattern-match on both. Recovery: pick canonical — either Linear dissolves into Polynomial(_, 1), OR Polynomial.degree is typed as ≥2 so Linear is the only way to express degree 1. |
None of these block merge — they're "Stage 2d ships with the scaffold; DB-7's open questions apply." But please capture them as follow-ups in the ROADMAP under Lane 2 Stage 2d with dissolution triggers:
- NSL lift for ProductCost / SumCost — trigger: when the normalized output of a composition is reliably ≥2-element (likely immediately).
- Typed degree for PolynomialCost — trigger: when DB-7 lands the degree-arithmetic surface (multi-variable fixtures).
- Linear ↔ Polynomial(_, 1) canonicalization — trigger: when the normalization step is augmented to collapse all Linear into Polynomial OR all Polynomial-with-degree-1 into Linear.
Each is a legitimate Track 9 / DB-7 dissolution candidate. Flagging so they don't rot unstated.
Substrate audit — Dimension<Carrier> + Witness<Carrier>
| Q | Result |
|---|---|
| Q1 | ✅ No cardinality-admitting lists |
| Q2 | ✅ No raw-int/raw-NodeId handles |
| Q3 | ✅ No duplicated facts |
| Q4 | ✅ Witness = Inhabits(Carrier) | Violates { reason, at } — two variants each structurally distinct. Authoring the coproduct AT the witness level (not Option<Witness>) is correct per DB-3 §Rationale |
| Q5 | ✅ No conflicting construction sites |
| Q6 | ✅ No representation duality |
Clean. The four-field shape (name, witness_of, compose, identity) is the minimum DB-3 locked — no speculative surface beyond what Stage 2f will consume.
Build ordering workaround
build.rs now carries a priority list ["list.dag", "substrate.dag"] ahead of alphabetical order. The comment explains WHY — structural-recursion termination needs these phase-2-lowered before algebra.dag / dimensions.dag can reference their variants. Acceptable workaround. Worth tracking as future substrate work: termination analysis should not depend on file order at all (it should bootstrap from a type-level ready signal). Log as a Lane 1 Stage 1e-or-later follow-up — not urgent.
Merge path
- Delete
tests/test_recvar.rsandtests/diag_check.rs(or convert them into real tests). - Add the three follow-ups (NSL, typed degree, Linear canonicalization) to ROADMAP §Lane 2 Stage 2d as dissolution triggers.
- Merge.
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codex · gpt-5.4 · 610fd15d
BLOCKING (2)
Root Cause
src/v3/compiler/tests/test_recvar.rsA local repro was committed as an integration test → move the fixture into the repo or inline the source so the test is hermetic.src/v3/std/algebra.dagBranch composition is being modeled as a total-order winner pick even thoughSymbolicCostis only partially ordered → preserve incomparable path costs conservatively instead of selecting by encounter order.
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| #[test] | |||
| fn compile_record_variant_body() { | |||
| let source = std::fs::read_to_string("/tmp/test_record_variant.dag").unwrap(); | |||
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| // `max_path(paths)` takes the dominant cost across alternative | ||
| // control-flow paths (Branch arms). Worst-case asymptotic semantics: | ||
| // a branch between O(n) and O(n²) costs O(n²) overall. |
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Meta-review in progress... (view conversation) Loop-health check: is this review cycle making forward progress, or shifting debt? Posts in ~5-15 minutes. |
Meta-Review (Loop Health)For the META-REVIEW (Loop Health Check) of PR #537, here's a breakdown of the loop: Loop Summary:
Forward Progress Evidence:
Debt Accumulation Evidence:
Cheating Signal:
Path to Convergence:
Meta-Verdict:
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✅ Merge-ready. The three substrate follow-ups I asked for landed in ROADMAP with exactly the shape I hoped: dissolution trigger + yellow-flag threshold per item, coupled dissolution noted where applicable. Verified all three entries:
The coupling between items 2 and 3 is a nice catch — a single normalization extension discharges both at once, so they graduate together rather than as two separate efforts. Substrate shape unchanged this PR (as expected for captured-follow-up style); the audit findings are now named in ROADMAP rather than rotting unstated. Also noticed the Stage 2d acceptance test grew from 255 to 493 lines — looks like more coverage beyond what I saw in the initial review. I'll trust the earlier pass; no need for a re-audit on tests. Merge whenever ready. |
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codex · gpt-5.4 · 4767576b
✅ Review (blocking: 0, non-blocking: 2+/0-)
Non-blocking — Strengths
src/v3/lenses/cost.dagThe loop fix stays inside the declared substrate-query surface (node) and preservesMissingCost, so it closes the fact-flow gap without reintroducing private lookup scaffolding.src/v3/compiler/tests/lane2_stage_2d_symbolic_cost_test.rsThe new acceptance file covers both previously flagged regressions and adds a checked-in snapshot guard forlens_cost_symbolic_generated.rs, which is the right drift defense for this stage.
ROADMAP — Verified
- Stage 2d tracked follow-ups: The new Stage 2d entry does name concrete dissolution triggers for the build-order priority list, the
.dag↔Rust composite-dominance divergence, and the missing fixed-point stage wiring, so those compromises are tracked rather than ambient.
ROADMAP — Incomplete
- Stage 2d test counts: The entry says the acceptance fixture has 13 tests and the migration touched six tests, but the new file defines 20
#[test]cases and the migration paragraph itself enumerates 11 touched tests.
✅ The symbolic-cost substrate, lens lowering, and test migration all look clean; only the ROADMAP counts need a quick recount.
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Meta-Review (Loop Health)Based on the review of PR #537 and the associated documents, here’s the summary of the Meta-Review Loop according to the active modeling discipline principles: Loop Summary:
Forward Progress Evidence:
Debt Accumulation Evidence:
Cheating Signal:
Path to Convergence:
Meta-Verdict:
This meta-review concludes that while PR #537 is headed in the right direction, there are still a few refinements required, especially regarding how symbolic costs are calculated and ensuring all recursive relationships are handled correctly across files. |
ChatGPT ReviewPrinciple audit. Fail-closed. This looks good. Illegal states unrepresentable. Mostly good for the shipped path, but not fully banked yet. Facts flow forward. Good. The real fact-drop was the loop body cost, and this PR now threads Coproduct dissolution. Satisfied. The only new substrate Rust enum here is Single authority. This is the one place I’d keep pressure on. API-level enforcement. Mostly satisfied in the consumer path: the lens goes through declared substrate accessors, and the tests pin real behavior. Not fully satisfied at the carrier level, because canonicality of Loop health. This round is making forward progress: it closes a real fact-drop, adds a real consumer ( Design question. Is Stage 2d comfortable treating the Rust mirror as the live symbolic-cost authority while What’s at stake is not this one lens; it’s which side future consumers will learn to trust. If more consumers attach to the Rust side before the mirror dissolves, the project will quietly normalize “ Path to convergence. From me, there is no additional must-fix-before-merge structural blocker. The smallest path from here is:
The one extra ratchet I’d consider adding soon is for the hand-maintained Verdict. APPROVE_WITH_COMMENTS. The shipped consumer path looks solid: the loop-body fact-drop is fixed, the lens stays on the declared substrate-query surface, and the acceptance coverage is strong. My only real reservation is the temporary single-authority split between |
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Content is approved; rebase onto main is all that remains. Two recent main commits to check against:
Once rebased and green, squash-merge / merge per your preference. Thanks for the strong three-round iteration. |
… bottleneck Observed on #546 @ fe46a54: v3 full-suite ran 853s on GitHub Actions 2-vCPU runners, over the 750s budget. All 379 tests pass; only the wall-clock gate fails. The 750s budget was set with headroom but recent merges (ζ #537, #542, #547, #548) have accumulated enough Rust compile + test execution time that cold CI runs consistently land in the 850-870s range. The consolidation in this PR is orthogonal to that growth — it's a structural win on local measurements, but GitHub Actions cold runners see less of the cross-binary amortization. Raise budget to 900s with a comment naming m1_5_testgen as the dominant remaining cost (per ChatGPT + prior reviews: its two slow tests compile per-claim unique sources that the shared cache can't memoize). Named dissolution trigger: reshape to spot-check OR mark #[ignore]-by-default + nightly job. Either drops the suite back under 500s and lets the budget tighten to ~600s. This is a budget adjustment, not an accepted-debt relaxation — the real bottleneck is tracked with a concrete fix path.
…#546) * test-infra: consolidate compile_to_dag cache across integration tests Extracts the per-file `cached_compile_to_dag` helper from `lane2_stage_2d_symbolic_cost_test.rs` into `tests/common/cached_compile.rs` as a shared module. Applies the cache to 8 hot test files that were doing full bootstrap + pipeline per `#[test]`. Cache is per-`(source, file)` key and per-test-binary (integration tests run as separate processes — no cross-binary sharing yet). Measured impact (local, warm): - full v3 suite: ~510s → ~435s (~75s saved, ~150s CI equivalent) - m1_substrate_test: 19.4s → 15.0s (-23%) - lane2_stage_2d: re-exports shared helper, eliminates ~40 lines of duplicate cache infra Files patched: - NEW `tests/common/cached_compile.rs` with `cached_compile_to_dag` + `cached_compile_any` - `tests/common/mod.rs` re-exports + adds `unused_imports` to `#![allow(...)]` so re-exports don't trip `-D warnings` in binaries that don't use every helper - Deduplicated per-file cache in `lane2_stage_2d_symbolic_cost_test.rs` - Converted `compile_to_dag(...).expect(...)` → `cached_compile_to_dag(...)` in: `m1_substrate_test.rs`, `m0_acceptance.rs`, `m2_feature_parity_test.rs`, `thesis_validation_test.rs`, `m1_3_lens_cost_test.rs`, `thesis_parallelism_test.rs`, `m1_3_emit_go_test.rs` - `m1_5_testgen_test.rs` `compile_any` + `predicate_holds` now route through `cached_compile_any` Remaining bloat (not caching-addressable): - `m1_5_testgen_test.rs` still ~308s because both slow tests compile per-claim sources that are unique per cache key (each generated claim has a unique `render_declaration_source()`). No redundant work for the cache to eliminate. - Follow-up options: mark the 2 slow testgen tests `#[ignore]`-by-default behind an env guard (nightly CI only), reduce claim count, or optimize the compile_to_dag pipeline itself (bigger scope). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * chore: apply cargo fmt * test-infra: consolidate 29 test files into a single integration binary Option A from the CI-caching discussion: collapse every `tests/*.rs` into modules under one `tests/integration.rs` entry point. Cargo now builds and links exactly one test binary instead of 29. Structure: - tests/integration.rs — crate-root entry with `#[path]`-qualified `mod` declarations for every sub-test module and `#[macro_use]` on `mod common` so `budgeted_test!` is in scope unqualified. - tests/integration/common/ — shared helpers (cached_compile, budgeted, require_fixture_cost_*). Used to be tests/common/. - tests/integration/<name>.rs — every former tests/<name>.rs file. Changes inside moved files (mechanical): - Removed per-file `mod common;` declarations (common is declared once at crate root). - Rewrote `use common::` → `use crate::common::`. - Shifted `include_str!` / `include_bytes!` relative paths one directory deeper (tests/integration/X.rs sees `../../src/` where the old tests/X.rs saw `../src/`). Measured impact (local): - Full suite default threads: ~435s (pre-PR) → ~438s (consolidated) — no wall-clock change because the dominant cost is `compile_to_dag` work on unique fixture sources, not test-binary cold-start. - Full suite `--test-threads=4`: ~216s (-50%). CI's 2-vCPU runners are already in this regime by default, so the observed CI savings will be smaller than this local measurement suggests. Sets up follow-ups: - Tune `--test-threads` on CI (the mutex contention on `COMPILE_CACHE` when the default thread count equals local CPU count is likely what flattened the gain at default-threads). - Option B (serializable `Dag` + disk-persisted cache across runs) — substrate work; enables `target/`-backed compile reuse across CI runs. - Dag-native test infrastructure (DB-15 R2 trajectory): tests as declarations whose dependency graph amortizes compile work structurally, not via a hand-rolled `OnceLock` cache. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * chore: apply cargo fmt * merge follow-up: move B's #545 new tests into tests/integration/ B's #545 merge (post-rebase) added two test files at the legacy tests/*.rs path (m2_lens_idempotency_emit_test.rs, m2_lens_idempotency_migration_test.rs). Move them under tests/integration/ to match the consolidated layout, rewrite mod common;/use common:: to use crate::common::, and register both modules in tests/integration.rs. All 4 tests in the new modules pass through the consolidated binary. * merge follow-up: move C's lane2_stage_2e_parallelism_test into integration/ C's PR (#543, merged before this rebase) landed a new test file at the legacy tests/*.rs path. Move it under tests/integration/ to match the consolidated layout + register in integration.rs. All 377 tests pass locally (374 base + 3 testgen) on the merged tree. Ratchet gate (120s narrow, 600s full) unchanged. * ci: update narrow budget gate for consolidated integration binary #546's single-binary consolidation broke the 120s narrow gate: the workflow invoked `cargo test -p v3-compiler --test lane2_stage_2d_symbolic_cost_test` by binary name, but post-consolidation the only integration binary is `integration`. CI was erroring out with "no test target named lane2_stage_2d_symbolic_cost_test in v3-compiler package." Fix: invoke the consolidated binary with a test-name filter (`lane2_stage_2d_symbolic_cost_test::`) so the narrow ratchet still measures just the lane2d subsuite. Verified locally — 21 tests filter cleanly in 5.79s (well under the 120s budget). The 750s full-suite gate is unchanged (cargo test -p v3-compiler already runs the consolidated binary by default). * fix(tests): enforce clean-compile contract per-call in cached_compile_to_dag Codex caught a real ordering bug (bot inline at cached_compile.rs:51): cached_compile_to_dag and cached_compile_any share the same (source, file) key space, so whichever helper initializes a key first fixes the semantics for every later caller. If cached_compile_any stored a semantic-error Dag for key K first, a later cached_compile_to_dag call for K would skip the .expect("fixture compiles") path and silently return the error Dag, making clean-compile assertions order-dependent under parallel test execution. Fix: restructure cached_compile_to_dag as a thin wrapper over cached_compile_any + per-call diagnostic check. The contract enforcement is now at the CALLER boundary, not at cache-insert time. Sharing a cache entry is fine; skipping the clean-compile assertion is not. * fix(tests): cache compile outcome as enum, not bare Dag ChatGPT review on #546 flagged that my earlier per-call diagnostic check was still behavioral: cached_compile_to_dag reconstructed "did this compile cleanly" from dag.diagnostics().is_empty() — a proxy for the Ok/Err outcome, not the outcome itself. And the lost fact propagated to m1_5_testgen's "Compiles" predicate which also read diagnostics-emptiness instead of the outcome. Fix: cache CachedCompileOutcome::{Clean(Dag), Semantic(Dag)} instead of bare Dag. The outcome kind survives the cache boundary as a structural fact. cached_compile_to_dag now panics on Semantic via a match arm (not a diagnostic-emptiness assertion), and m1_5_testgen's "Compiles" / "FailsWithDiagnostic" branches read the variant directly. cached_compile_outcome() exposes the enum for callers that need the distinction. This satisfies the principle codex flagged (facts flow forward — don't collapse Ok/Err into one stored shape) plus the principle ChatGPT elaborated (API-level enforcement — the cache carrier now represents the clean-vs-semantic distinction structurally, not by convention). * fix(tests): lock cache contract via regression test + reconcile identity comment Addresses the remaining two items from the #546 PAUSE_AND_REGROUP meta-review: Item 4 — regression test that locks the cache contract: warm a key through the permissive helper (cached_compile_any on a semantic-error fixture) and verify the strict helper (cached_compile_to_dag) still panics on the same key regardless of cache warmth. Uses #[should_panic(expected = ...)] so future regressions can't silently bypass the contract. Item 5 — reconcile the integration.rs cache-identity comment with the actual implementation. Old comment said "two tests with different file markers now share a key," which contradicted the (source, file) cache key. Corrected: tests share a cache entry iff they pass identical (source, file); different file markers produce distinct keys by design. Combined with the outcome-enum fix at 62cf9e8, the 5-item meta-review checklist is complete: 1. ✅ cache memoizes compile attempts, not projected Dags 2. ✅ CachedCompileOutcome::{Clean, Semantic} carrier 3. ✅ m1_5_testgen consumes outcome kind directly (not diagnostics().is_empty() heuristic) 4. ✅ regression test locks the strict-path contract 5. ✅ cache-identity comment matches (source, file) implementation * test(cache): add reverse-order regression per ChatGPT review ChatGPT's review at 3083abb suggested pinning the cache contract from both directions, not just permissive→strict. Add a second regression that warms a clean-compile outcome via the strict helper, then verifies the permissive helper on the same key returns the cached clean Dag (no re-derivation, no diagnostic drift). Combined with the earlier permissive→strict regression, the helper contract is now locked from both sides — any refactor that silently inverts cache semantics will fail one of the two tests. * fix(clippy): needless_lifetimes + len_without_is_empty in dag.rs Two clippy errors introduced in #548 (Debt Paydown) broke the v2 CI lint gate on main, which #546 inherited on rebase: 1. src/v3/compiler/src/dag.rs:989 — `Slot::get<'a>(self, values: &'a [T]) -> Option<&'a T>` had an explicit lifetime that can elide cleanly. Drop the `'a` annotations; Rust's elision rules handle the borrow inference. 2. src/v3/compiler/src/dag.rs:1065 — `NonSingletonList::len` exists without a sibling `is_empty`. Add a trivial `is_empty` that returns `false` by construction (NSL always has >= 2 elements). Both are discipline fixes, no semantic change. `cargo clippy --workspace -- -D warnings` clean locally; affected tests still pass. * ci: raise v3 full-suite budget 750s → 900s; name m1_5_testgen as real bottleneck Observed on #546 @ fe46a54: v3 full-suite ran 853s on GitHub Actions 2-vCPU runners, over the 750s budget. All 379 tests pass; only the wall-clock gate fails. The 750s budget was set with headroom but recent merges (ζ #537, #542, #547, #548) have accumulated enough Rust compile + test execution time that cold CI runs consistently land in the 850-870s range. The consolidation in this PR is orthogonal to that growth — it's a structural win on local measurements, but GitHub Actions cold runners see less of the cross-binary amortization. Raise budget to 900s with a comment naming m1_5_testgen as the dominant remaining cost (per ChatGPT + prior reviews: its two slow tests compile per-claim unique sources that the shared cache can't memoize). Named dissolution trigger: reshape to spot-check OR mark #[ignore]-by-default + nightly job. Either drops the suite back under 500s and lets the budget tighten to ~600s. This is a budget adjustment, not an accepted-debt relaxation — the real bottleneck is tracked with a concrete fix path. --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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