ci: make CI genuinely green — rust-ci toolchain pin + canonical Julia ABI-FFI gate + fmt/clippy#46
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Add the flagship Layer-2 semantic proof for julianiser. Models a shared
arithmetic + array-indexing expression AST with two evaluators: evalSrc
(Python/R, 0-based indexing) and evalJulia (translated Julia, 1-based
indexing). Proves the headline correctness property:
translatePreserves : (env) -> (e) ->
evalSrc env e = evalJulia env (translate e)
as a genuine propositional equality by structural induction, with the
index case discharged by the 0-to-1 re-basing round-trip lemma
(juliaRoundTrip), mirroring IndexRemapCorrect in Types.idr.
Includes a sound certifier (certifyEquiv/certifyEquivSound), a positive
control (sampleAgrees, fully evaluated 10*2+30=50), and a negative
control: a deliberately unshifted "buggy" Julia evaluator together with
buggyDivergesWitness proving it genuinely diverges (30 /= 20). The
property is non-vacuous: an adversarial Refl claiming the buggy
translation preserves results is rejected by idris2 (Mismatch 20 vs 30).
No believe_me/postulate/assert_total. Builds clean, zero warnings.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
…ss checker Raises the julianiser Idris2 ABI from Layer 2 to Layer 3 with a new Julianiser.ABI.Invariants module built over the existing Semantics model (no datatypes redefined). Proves three deeper, distinct properties: - Compositionality: translate is a homomorphism over syntactic linking (translateHom) and correctness is closed under composition (preserveCompose) — a modular argument, not the Layer-2 induction. - Determinism: evalJulia congruence + pipeline determinism, plus translate injectivity (deterministic, information-preserving codegen). - A second sound+complete Dec checker for faithful (source,julia) pairs (decFaithful + soundness + completeness), with DecEq for JExpr/JuliaIdx. Includes positive controls (composite round-trip via preserveCompose, homomorphism Refl, faithful acceptance) and negative/non-vacuity controls (translate injectivity disequality, checker rejection). %default total, no believe_me/postulate/assert. Clean build, zero warnings; adversarial false-equality check rejected. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
Prove the FFI result-code wire encoding is sound for Julianiser: - intToResult decoder + resultRoundTrip: faithful/lossless round-trip - resultToIntInjective: derived from round-trip via cong + justInj - positive controls (decode 0/6/7) and negative non-vacuity controls (distinct codes have distinct ints, machine-checked) Genuine proof only; no believe_me/postulate/etc. %default total, zero warnings. Julianiser has only Result/resultToInt as an FFI enum encoder (no ProofStatus/statusToInt), so clause (c) is vacuous. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
Assemble the existing per-layer proofs into one inhabited value `abiContractDischarged : ABISound`, wiring the flagship semantic preservation (Semantics.sampleAgreesGeneric), the Layer-3 invariants (Invariants.compositeAgrees compositionality + translateInjective deterministic codegen), and the Layer-4 FFI seam injectivity (FfiSeam.resultToIntInjective) into a single end-to-end soundness statement. No new domain theorem; genuine composition only. Builds with zero warnings; a false-certificate adversarial probe is rejected. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
…ble fix); port ABI-FFI gate Python->Bash (Python is estate-banned); exempt demo Python pipeline input via hypatia:ignore pragma Resolves the standing baseline CI reds (rust-ci toolchain error, governance Language/anti-pattern, governance workflow-lint) without altering the proven ABI. The Bash gate reproduces the former Python gate's verdict verbatim (validated across all -iser repos) and catches the same drift classes. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
…simiser) in place of the interim Bash port
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Summary
Make CI genuinely green. The shared rust-ci pin on
mainpredates standards#439, so the SHA-pinneddtolnay/rust-toolchainstep errors out before the job runs. This bumps the pin so rust-ci actually runs, replaces the estate-banned Python ABI-FFI gate with the canonical Julia gate (matchesverisimiser), and brings the Rust sources to fmt + clippy(-D warnings) clean.Changes
rust-ci-reusable.ymlpind135b05→8dc2bf0(currentstandardsHEAD; includes #439 toolchain fix + #441/#442).scripts/abi-ffi-gate.py(Python banned estate-wide); addscripts/abi-ffi-gate.jl(behaviour-identical Julia port); workflow installs Julia 1.11.5. Matchesverisimiser's canonical gate.examples/data-pipeline/pipeline.pyis the Python pipeline julianiser wraps into Julia — kept, with ahypatia:ignorepragma marking it a demo input fixture (not estate code).cargo fmt+clippy --fixwhere the repo had pre-existing drift, socargo fmt --all -- --checkandcargo clippy --locked --all-targets -- -D warningspass.RSR Quality Checklist
Required
cargo test --locked --all-targets)cargo fmt --all -- --check)cargo clippy --locked --all-targets -- -D warnings).envfiles includedAs Applicable
Testing
Verified locally with the toolchain CI uses (cargo 1.94.1, rustfmt 1.8.0):
cargo fmt --check,clippy -D warnings,cargo check --locked,cargo test --lockedall pass.🤖 Generated with Claude Code
Generated by Claude Code