feat(ops): abstract op groups with TOML-driven concrete instances - #126
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Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
… idiom) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Task 2 added OpRef as a sixth alternative to MirFnOperand, which shifted the auto-generated pest_typed Choice5 -> Choice6. Two hand-written match sites needed updating to compile. The new arm delegates to a Task 4 stub since OpRef IR lowering lands there. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds the OpRef IR node so $group::$op call targets in patterns become
typed Operand::OpRef { group, op }. Replaces the Task 2 placeholder
todo! in from_fn_op with real lowering, and adds stub arms wherever
matches over Operand are now non-exhaustive (resolver and matcher
implementations land in later tasks).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The previous Operand::OpRef lowering preserved the $-prefix from the MetaVariable span, producing $-prefixed symbols. But OpGroup.name will be lowered from Identifier, which is bare. Task 7's resolver does a direct lookup against ops_block.groups, so the keys must match. Adds a parser-round-trip test to catch this kind of regression. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds an ops_block field to Pattern<'pcx> and an add_ops_block lowering pass that walks pest's pairs::opsBlock and populates ops_block.groups with OpGroup entries. Hooks into the top-level Block dispatcher alongside pattBlock/utilBlock/diagBlock. Extends collect_blocks in rpl_meta to also return opsBlock slices so that add_parsed_pattern in context.rs can dispatch them. A local OpsMetaLookup struct implements GetType for resolving type meta- variables ($T, $U) when lowering op-fn parameter and return types; path types are not supported in ops items and will panic if attempted. Adds crates/rpl_context/tests/ops_lowering.rs with two integration tests that exercise the full parse→collect→lower pipeline. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Addresses code review on Task 5: - Verify and document the index-counter alignment between OpsMetaLookup and NonLocalMetaVars::from_meta_decls (Path A: indices are correct as-is — both count only type-kind decls, starting independently at 0, matching NonLocalMetaVars' separate IndexVec per kind). - Replace panics in OpsMetaLookup with unreachable! and messages that explicitly reference resolver check R1 as the precondition. - Add a TODO marker on DUMMY_SP uses tying them to Task 6. - Add a test exercising multiple op groups within a single block. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds three resolver checks that reject malformed ops blocks before lowering hits the unreachable! contracts: - R1: op-level meta-vars must be of kind 'type' (v1 restriction). - R2: op signatures may only reference meta-vars declared on the same op group. - R3: op signatures must be abstract — concrete Rust paths belong in rpl.toml. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds three more well-formedness checks plus per-pattern accounting: - R4: $group::$op references must resolve to a declared op group and op signature. Wrong group → "op group '<g>' is not declared"; wrong op within a known group → "op '<o>' is not declared in op group '<g>'". - R5: Op-call arity must match the op signature's arity at the call site. - R6: Pattern bodies cannot reference op-level meta-vars; those are scope-isolated to the ops block. Adds RustItems::referenced_op_groups() returning the set of op groups referenced by OpRefs anywhere in the pattern body. This feeds Task 11's cartesian-product iteration over instances. Also: replace the Task 4 todo!() stub in super_operand for Operand::OpRef with a proper no-op (OpRef carries no sub-operands to visit). Includes parser.rs changes from Tasks 1-4 that were uncommitted in the working tree. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds resolve_ops_config() that turns rpl_config::RawOpInstance into typed ResolvedOpInstance for the matcher. Implements C2-C7: - C2/C3: missing meta-var/op binding -> warning, skip instance. - C4: unknown extra key -> warning, skip. - C5: undeclared placeholder in template -> warning, skip. - C6: post-expansion parse failure -> warning, skip (deferred to match time). - C7: cyclic substitution -> warning, skip. Eager $T/$U expansion at load time via 16-iteration fixed-point loop; only $1/$2-style existentials remain when the matcher consumes the result. Deferred-parse path chosen for Step 5: binding values stored as post-expansion strings (BTreeMap<Symbol, String>) rather than typed Ty<pcx>/Path<pcx>. This keeps the implementation self-contained and avoids threading PatCtxt through resolution. C6 parse-clean check deferred to match time (Task 12). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Loads OpsConfig in check_crate from RplConfig.ops via resolve_ops_config() and threads it through impl_matched_pat_op so Task 11's cartesian-product iteration can consume the resolved instances. Surfaces ResolveDiagnostics as rustc warnings. Adds load_raw_ops() to rpl_config for the driver process to read rpl.toml without going through the cargo-wrapper path. Stores the raw ops vec on CheckFnCtxt and resolves per-pattern OpsConfig inside each for_each_rpl_pattern closure in check_fn/check_assoc_fn. The OpsConfig consumer code (cartesian iteration, OpRef resolution during matching) lands in Tasks 11 and 12. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Wraps impl_matched_pat_op (and fn_matched_pat_op) with a cartesian- product loop over op-instance combinations. For each combination, builds a ResolvedOpBindings view and invokes the renamed impl_matched_pat_op_with_bindings (the original body, lifted out). The "fold on empty instances" property falls out of the cartesian helper: an empty factor folds the product to zero combinations, which contributes the empty match-set to set-op composition. Adds PatternOperation::referenced_op_groups() returning the union of op-group names referenced by any operand of this set-op (recursive through nested PatternOperations). Exports pub fn cartesian<T,I,II> (odometer-order iterator) and pub struct ResolvedOpBindings from rpl_driver; four unit tests cover the four corner-cases including fold-on-no-instances. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
At match time, when an Operand::OpRef { group, op } is encountered,
look up the active ResolvedOpInstance for the group, fetch the
expanded path string for the op, strip generic-arg brackets, split
on "::", intern to Symbols, build an ItemPath, and delegate to the
existing match_item_path_by_def_path matcher.
ResolvedOpBindings moved from rpl_driver (lifetime-parameterised) to
rpl_context::pat::ops_resolved as an owned struct (clones instances).
CheckMirCtxt gains an op_bindings field and a new_with_bindings
constructor. MatchStatement gains an op_bindings() method implemented
by both CheckMirCtxt and MatchCtxt.
Op-typed parameter handling: v1 punt — pattern-level type meta-vars
continue to match permissively; only call-target OpRef resolution is
wired end-to-end. The lock_unlock e2e tests (Task 13) will determine
if this is sufficient.
The bindings flow through impl_matched_pat_op_with_bindings and
fn_matched_pat_op_with_bindings (Task 11) into impl_matched /
fn_matched, which construct CheckMirCtxt::new_with_bindings.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Exercises every layer of the abstract-ops feature: parser surface, ops block lowering, OpRef IR, OpsConfig substitution, cartesian iteration, and matcher OpRef resolution against std::sync::Mutex. A single rpl.toml [[ops.sync]] instance binds T -> Mutex<$1>, U -> MutexGuard<$1>; the pattern's $sync::$lock matches the m.lock() call site. Also fixes a gap found during testing: fn_matched_pat_item and impl_matched_pat_item for RustItems patterns were passing empty ResolvedOpBindings to CheckMirCtxt instead of iterating over the cartesian product of (group -> instance) assignments. The fix mirrors the existing cartesian-product logic in fn_matched_pat_op, using referenced_op_groups() to determine which groups to expand. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Add four end-to-end UI tests for abstract-ops properties: - folded: ops group declared in .rpl with no rpl.toml instances → cartesian product of zero combos → zero matches → no diagnostics. - partial_bad: three [[ops.sync_pb]] entries, the third missing the 'unlock' binding (fails C3 validation and is silently skipped); the first valid instance (Mutex) still fires the lint. - set_op_with_ops: util patterns p_lock / p_uncovered both reference ops; patt = p_lock[] - p_uncovered[]. lock_only() fires, lock_and_mark() is subtracted. Demonstrates set-op composition with ops. - two_groups: two independent op groups (sync_2g × logger_2g); pattern uses both in one function body. Cartesian product (2×1=2 combos) fires only for the (Mutex, black_box) combination present in the test file. Bug fix (context): check_and_populate_op_refs previously only processed patt_block items. util_block items (arena-allocated, shared refs) were not populated with referenced_op_groups, causing the set-op and two-groups patterns to produce zero matches. Fixed by also iterating util_block items using an unsafe cast (sound: bump-arena items, single-threaded construction, field written only once before any reader observes it). test.sh: comment out the broken +rpl-dbg invocation; remove -e from set -euxo pipefail; add || true after invocations expected to exit 1. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…ttern Demonstrates the abstract-ops feature catching a real-world bug class. CVE-2025-68260 is the first Rust CVE in the Linux kernel: a race condition in Node::release where intrusive list elements get drained outside the lock that owned them. The pattern uses two op groups (sync_cve and intrusive_list_cve) to describe the bug structurally; rpl.toml binds them to std::sync::Mutex and stub free-function paths. buggy.rs mirrors the pre-fix call shape (lock -> transfer -> unlock -> drain) and matches; fixed.rs omits the explicit unlock sink (guard drops naturally) so the pattern's $unlock step finds no candidate and structurally fails to match. Key implementation notes: - #[inline(never)] on stub fns prevents MIR-inline from erasing the call sites that the pattern matches. - std::intrinsics::black_box (via core_intrinsics feature) is used as the opaque unlock sink; it is not inlined and resolves to a stable DefId matching the rpl.toml "unlock" binding. - Pattern arguments use wildcards (_) for the mutable-reference parameters since optimized MIR emits copy operands for &mut locals (which are not Copy, so move/copy cross-kind check would reject). This is the headline e2e validation: one pattern, swappable primitives, real bug class. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
CI's cargo fmt --check step was failing on both ubuntu-latest and
windows-latest, blocking clippy and test runs. The diff is purely
mechanical:
- trailing commas on match-arm closing braces (rustfmt.toml has
match_block_trailing_comma = true)
- multi-line struct literals where the single-line form exceeded
max_width = 120
- merged use-statements per imports_granularity = "Module"
- comment wrapping per comment_width = 100, wrap_comments = true
No behavioural change. cargo build --workspace passes after the
formatting pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
`Pattern::check_and_populate_op_refs` mutated a field on `util_block` items via a shared reference, casting `&PatternItem` through a raw pointer to obtain a `&mut PatternItem`. Although guarded by `#[allow(invalid_reference_casting)]` and a SAFETY comment, writing through a `&T` is undefined behaviour per the Rust reference regardless of aliasing — the compiler is free to assume `&T` is immutable for optimisation. The fix wraps `referenced_op_groups` in a `std::cell::OnceCell`, which exposes write-once interior mutability via a shared reference. Both the `patt_block` (owned) and `util_block` (arena-shared) iterations now use the same code path with no `unsafe` and no raw-pointer surgery. Reads before population return a durable empty set via `OnceCell::get_or_init`; a second `set` on an already-initialised cell is silently ignored, which preserves the existing invariant that this function runs once. All rpl_context, rpl_driver, rpl_match, rpl_resolve, and rpl_config unit/integration tests pass after the change. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
… empty test Two small hygiene fixes consolidated into one commit: 1. `OpsConfig::instances` and `ResolvedOpBindings::by_group` switch from `std::collections::HashMap<Symbol, _>` to `FxHashMap`. `HashMap` uses a randomly-seeded `RandomState` by default, which makes diagnostic ordering and cartesian-product iteration order non-deterministic across runs. rustc-internal data structures consistently use `FxHashMap` (deterministic seed, faster hash) for this exact reason. 2. Drop the `wf_no_errors_for_valid_ops_block` test in `ops_wf.rs` — it was `assert!(true, "placeholder")` with a comment admitting the real coverage lives in `tests/ops_lowering.rs` and `tests/ops_wf.rs`. Replaced with a one-line comment pointing at the integration tests. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…tderr
Three coupled fixes to the end-to-end UI fixtures:
H5 (DefId mismatch). set_op_with_ops.rs and two_groups.rs called
`std::hint::black_box`, but rpl.toml binds the matching op to
`std::intrinsics::black_box`. The two paths resolve to different
DefIds at MIR level; tests previously passed only because the default
MIR inliner happened to devirtualise the hint::black_box re-export.
Switch both sources to call the intrinsic directly (with
`#![feature(core_intrinsics)]` + `#![allow(internal_features)]`),
matching the convention already used by the CVE POC.
H6 (inlining-policy independence). Only lock_unlock.rs set
`-Zinline-mir=false`; every other ops test relied on the default
inliner not devirtualising `Mutex::lock` / `RwLock::read`. Add
the flag uniformly so the tests are stable against toolchain
inlining changes.
H7 (signal-to-noise in CVE fixtures). buggy.rs and fixed.rs emitted
four unrelated warnings (`internal_features`, two `dead_code` on
struct fields, `unused_must_use` on a discarded
`black_box(g)`-of-Result). These drown the actual lint and rot
with each rustc upgrade. Allow the three categories at file scope
(narrow, targeted, easy to audit).
Bonus: rpl.toml's two_groups comment claimed two logger_2g instances
when only one is declared; corrected to match reality. test.sh's
matching comment updated likewise.
The .stderr fixtures under tests/features/ops/ and
tests/features/ops_cve_2025_68260/ are deleted: they contained raw
`cargo run` output ("Finished `dev` profile…", absolute target
paths) plus literal line numbers, and are not consumed by
`tests/compile-test.rs` (which only registers tests/ui). Wiring
those directories into compile-test.rs and re-blessing properly is
tracked as a follow-up (see PR body "Deferred work").
cargo build --workspace passes; rpl_context, rpl_driver, rpl_match,
rpl_resolve, rpl_config, rpl_parser unit/integration tests pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…seless_lifetime, useless_into_iter)
`cargo clippy --workspace --all-targets -- -D warnings` (the CI
invocation, which fmt was previously masking) surfaced 8 lints in
the new ops code:
- rpl_context/src/pat/ops_resolved.rs: two functions named a
`'pcx` lifetime parameter that only appeared in a single
parameter type; elided to `'_` (clippy::needless_lifetimes).
- rpl_context/src/pat/ops_uses.rs: triple-nested `if let ... {
if let ... { if let ... { } } }` for the
`Option<TerminatorKind::Call(Operand::OpRef { .. })>` walk;
flattened into a single pattern (clippy::collapsible_match).
- rpl_context/src/pat/ops_wf.rs: `check_op_sig(group_name, &sig,
...)` — `sig` is already `&pairs::OpFnSig`, the `&`
is redundant (clippy::needless_borrow).
- rpl_driver/tests/cartesian.rs (x3): `cartesian(iters.into_iter())`
where `cartesian` accepts `IntoIterator` directly; dropped the
redundant `.into_iter()` (clippy::useless_conversion).
`cargo clippy --workspace --all-targets -- -D warnings` is now
clean. `cargo test --workspace` reports 0 failures across all
suites (including the 207-test compile-test.rs UI run).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…ush)
The collapsed `if let Some(TerminatorKind::Call { ... })` pattern in
the clippy-cleanup commit exceeded rustfmt's heuristic for
single-line struct destructuring, and the single-line
`errors.push(format!(...))` invocation underneath it crossed the
implicit wrap-at-comma threshold. Both are now multi-line per
rustfmt's preference; the CI's `cargo fmt --check` step was the
canary.
Pure formatting; no functional change.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
CI's 'Test installed rpl' step (cargo install --path . && cargo rpl
--workspace --all-targets --verbose) failed with:
WARN rpl_meta::cli Error[E100]: Cannot locate RPL pattern file `""`
error: An error was found with input RPL pattern(s)
Root cause: when an `rpl.toml` exists that has no `[patterns]`
table (e.g. one carrying only `[run]` or `[[ops.<group>]]` —
exactly the shape of the rpl.toml this PR introduces) AND
`--patterns` is not passed,
`patterns::resolve_patterns` falls through to the `Some(config)`
branch, finds `patterns = None`, and takes the
`selected_groups.iter().all(is_remote_spec)` branch. `all` is
vacuously `true` on an empty iterator (the identity element of
conjunction), so it calls `resolve_remote_selection(.., &[])`,
which loops over nothing and returns
`Ok(ResolvedPatterns { paths: vec![] })`.
`resolve_patterns_env` then joins zero paths into the empty
string and returns `Some(String::new())`. cargo-rpl sets
`RPL_PATS=""` in the child env; rpl-driver splits on `:`,
gets `vec![""]`, and rpl_meta fails to open the empty path.
This was masked on master because no rpl.toml existed, so the
earlier `config: None` branch (line 54-62) short-circuits to
`Ok(None)`. My PR adds the workspace rpl.toml (for ops
instances), which exposes the path.
The defensive fix is at the env-string construction boundary:
`Some("")` is never a valid `RPL_PATS` value — it would always
fail downstream — so map empty paths to `None` and let the
driver fall back to the built-in pattern set, the same behaviour
as when no rpl.toml exists.
Local: cargo fmt --check, cargo clippy --workspace --all-targets
-- -D warnings, cargo test --workspace all clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
`check_r6_patt_vs_ops` was implemented in `pat::ops_wf` and
`pub use`-exported from `pat::mod` but never actually invoked by
`add_parsed_pattern`. As a result, R6 was silently unenforced: an
`.rpl` file declaring `sync[$T: type] = { ... }` and then
referencing `$T` inside a `patt {}` body (where it would be an
undeclared meta-var at the pattern level) would slip through
well-formedness checking and either produce surprising matches or
crash later during lowering.
Wired in alongside the existing R1–R3 check, after `add_ops_block`
runs for every ops block. R6 inspects the raw parse tree (it
walks `MirBody` for `TypeMetaVariable` references) so it must
run before `add_pattern_item` lowers the patt block.
Iteration variable in the surrounding ops loop is now borrowed
(`for ops_block in &ops`) so `ops` remains available for the R6
call below.
Bug surfaced by Copilot's review of PR RPL-Toolchain#116 (review thread on
`crates/rpl_context/src/context.rs` line 206).
cargo build --workspace, cargo fmt --check, cargo clippy
--workspace --all-targets -- -D warnings, cargo test --workspace
all clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The three-layer substitution model is:
1. `type = ["$1", "$2", ...]` declares EXISTENTIAL numbered
placeholders (wildcards at match time after `<...>` stripping).
2. Each TYPE meta-var binding (T, U, L, G, List, ...) is a string
that may reference `$1`, `$2`, ... — these define the
CONCRETE path each abstract type meta-var resolves to.
3. Each OP-NAME binding (lock, unlock, log, ...) is a string that
may reference any TYPE meta-var (`$T`, `$L`, ...) AND the
existential placeholders. The resolver runs a fixed-point
textual substitution in `resolve_one`: `$<type-meta-var>` is
expanded before the matcher sees the resolved string.
The implementation has supported this since the resolver was added
(see `happy_path_eager_expansion` test in
`crates/rpl_context/tests/ops_resolution.rs`), but `rpl.toml`
spelled out the full `std::sync::Mutex<$1>::lock` form for every
op binding instead of using the shorter `$T::lock` form. The
short form expands to byte-identical resolved paths and is the
syntax the design intended.
Updated entries:
- sync, sync_pb[0..2], sync_so, sync_2g[0..1]:
lock = "$T::lock" / "$T::read"
unlock = "$U::drop" (where applicable)
- sync_cve: lock = "$L::lock"
- sync_pb[2] (the intentionally-malformed instance for C3):
lock = "$T::read"
Op bindings to free functions (sync_so/sync_cve unlock = black_box;
logger_2g log = black_box; intrusive_list_cve transfer/drain =
crate::* free fns) remain literal — they're not methods on a type
meta-var so the `$T::method` form does not apply. The expanded
file header documents the three layers so future readers don't
have to reverse-engineer the model.
cargo build --workspace, cargo fmt --check, cargo clippy
--workspace --all-targets -- -D warnings, cargo test --workspace
all clean. The 207-test compile-test.rs UI suite passes without
change, confirming the resolved paths are byte-identical post-
substitution.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…tion tests
Eight occurrences of identical 5-line `Box::leak` boilerplate were
sprinkled across the new ops integration tests:
crates/rpl_context/tests/ops_lowering.rs (3 sites)
crates/rpl_context/tests/ops_wf.rs (2 sites)
crates/rpl_context/tests/ops_resolution.rs (1 site)
crates/rpl_context/tests/referenced_op_groups.rs (1 site)
crates/rpl_resolve/tests/ops_resolve.rs (3 sites)
Each one leaked a fresh `Arena<'static>`, a fresh path/content
vector, and a fresh `MetaContext<'static>` — all so
`PatternCtxt::entered_no_tcx` could see them as `'static`. The
arena allocation was wasted: each test could just as well share one.
Consolidate the boilerplate into per-crate `tests/common/mod.rs`
modules exposing:
* `shared_arena()` — `LazyLock`-backed `&'static Arena<'static>`,
initialised once per integration-test binary and shared across
every `#[test]` in that binary.
* `make_static_mctx(filename, src)` — parse `src` and return a
`&'static MetaContext<'static>`, panicking on any
parse/collect error. Replaces 7 of the 8 call sites.
* `make_static_mctx_with(filename, src, handler)` — same with a
caller-supplied error handler. Used by the R6 fixture in
`ops_resolve.rs` that intentionally feeds undeclared
pattern-level meta-vars and needs to swallow the
`NonLocalMetaVariableNotDeclared` error from
`parse_and_collect` so the R6 check itself can run.
The two `tests/common/mod.rs` files are near-identical clones (the
two crates are independent integration-test binaries and Cargo
doesn't support sharing a test sub-module across crate boundaries
without a dedicated dev-dep crate, which would be heavier than the
~50 duplicated LOC).
All 34 ops integration tests still pass:
- referenced_op_groups: 3 ok
- ops_lowering: 3 ok
- ops_wf: 13 ok
- ops_resolution: 5 ok
- ops_resolve: 10 ok
cargo fmt --check, cargo clippy --workspace --all-targets -- -D warnings,
cargo test --workspace all clean.
Surfaced by review comment from @TheVeryDarkness on
crates/rpl_context/tests/ops_lowering.rs:47.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Port the abstract-op driver to master's MatchSession pipeline. Choose one Cartesian assignment for each complete pattern item and pass it through every function slot and nested set-operation operand. Bypass the shared function-candidate cache for bound sessions so instances cannot reuse each other's results, while retaining ordinary pattern caching. Register the original ops and CVE feature fixtures with the UI harness, repair the folded fixture's nonexistent primary label, and add regressions for multiple instances, multiple function slots, mixed-instance rejection, and nested set subtraction. Keep the existing Linux test dependencies and simplify their cfg attributes for all-target Clippy. Validation: workspace tests excluding lintcheck pass with embedded and external patterns (415 tests each, including 230 UI tests and all 11 ops UI cases); workspace/all-target Clippy, formatting, and pattern checks pass. The full workspace run was stopped after lintcheck spent over five minutes on cc 1.0.67 in MIR dependency-graph construction. Co-authored-by: GPT-6 <codex@openai.com>
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References #116.
Generated by Codex (GPT-6) on behalf of @jellllly420