ABI: make Idris2 proofs genuinely compile + add machine-checked theorems - #31
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The governance/licence-consistency check requires an SPDX-License-Identifier header on the LICENSE file and a `license` field in the manifest. The LICENSE body is MPL-2.0 text, so stamp `SPDX-License-Identifier: MPL-2.0` (matching the actual body) and set `license = "MPL-2.0"` (replacing `license-file`). Verified with standards/scripts/check-licence-consistency.sh (passes). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DF9CcCuL4YJoqs26eHsYiA
Make the repo's licensing single and consistent, matching the wokelangiser reference policy and the merged iseriser pattern: - Remove contradictory PMPL-1.0-or-later / Palimpsest self-claims from README badges/footers, QUICKSTART, RSR_OUTLINE, STATE-VISUALIZER, and machine-readable governance (META, stapeln, deny.toml allow-list, copilot/AGENTIC SPDX directives, Trust/Must LICENSE-content checks, per-project CLAUDE.md). - Encode the docs split in REUSE dep5: *.adoc/*.md/docs/** -> CC-BY-SA-4.0, everything else -> MPL-2.0. - READMEs show MPL-2.0 (code) + CC-BY-SA-4.0 (docs) badges; full texts live in LICENSES/; root LICENSE stays MPL-2.0 for GitHub's licence chip. Preserves legitimate non-self references: cargo-deny's AGPL deny-list, the "never use AGPL" estate policy, and the Contributor Covenant CoC. Verified: standards/scripts/check-licence-consistency.sh passes; no residual PMPL/Palimpsest self-claims remain. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DF9CcCuL4YJoqs26eHsYiA
The src/interface/abi scaffold was never compiler-checked. Made every
proof genuine and the package build clean (zero errors, zero warnings).
Types.idr:
- thisPlatform: replaced %runElab stub (needed ElabReflection) with Linux.
- DecEq RefCapability and DecEq Result: replaced uncompilable
`decEq _ _ = No absurd` catch-alls with explicit off-diagonal
`No (\case Refl impossible)` cases for every distinct constructor pair.
- createHandle: use `choose (ptr /= 0)` to supply the erased
`So (ptr /= 0)` witness; previously the auto proof was unsolved.
- isSendable Ref/Box/Trn: fixed the impossible-case lambda syntax.
- Renamed record-field implicit names to avoid lowercase-shadowing warnings.
Layout.idr:
- paddingFor: `minus alignment ...` (Nat has no Neg subtraction).
- Added sound `decDivides` and replaced `alignUpCorrect` (whose Refl could
not typecheck symbolically) with `alignUpDivides` over decDivides.
- Concrete layouts mailboxMessageLayout / actorHeaderLayout: supplied the
erased proofs explicitly ({sizeCorrect = Oh} {aligned = DivideBy k Refl}).
- verifyLayout / actorFieldsLayout: discharge both erased obligations with
real witnesses (choose for the size bound, decDivides for alignment);
actorFieldsLayout now returns Maybe StructLayout.
- checkCABI: implemented via decFieldsAligned (real per-field witnesses),
removing the ?fieldsAlignedProof hole.
- mailboxMessageCABI / actorHeaderCABI: built directly from per-field
DivideBy witnesses, removing the two holes; qualified layout names as
Layout.* in the types to stop implicit auto-binding.
- offsetInBounds: changed the unsound universal `So (...)` return to
`Maybe (So (...))` decided via choose, removing the hole.
Added Ponyiser/ABI/Proofs.idr with machine-checked theorems:
- mailboxMessageCompliant, actorHeaderCompliant (C-ABI compliance built
directly from DivideBy witnesses, layout names qualified).
- okIsZero, sendabilityViolationIsSix, isoEncodesZero, tagRoundtrips
(result-code / capability FFI encoding).
- isoSubtypesBox, trnSubtypesBox (subtyping lattice), refNotSendable
(Sendable Ref -> Void).
Buildability:
- git mv flat files into Ponyiser/ABI/ to match the module namespaces.
- Added src/interface/abi/ponyiser-abi.ipkg.
- .gitignore: added **/build/, *.ttc, *.ttm; build/ not committed.
Verified: `idris2 --build ponyiser-abi.ipkg` exits 0 with no warnings.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DF9CcCuL4YJoqs26eHsYiA
hyperpolymath
marked this pull request as ready for review
June 26, 2026 14:55
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Idris2 ABI proofs — genuinely compile + machine-checked theorems
Part of the family-wide ABI-proofs review. The hand-written ABI did not typecheck under Idris2 0.7.0; this makes it real and verified, following the merged iseriser reference.
Systemic fixes:
decEq _ _ = No absurd→ explicit off-diagonal cases;{auto 0 nonNull}smart constructors →choose-based;paddingFor-→minus; realdecDivides/decFieldsAlignedreplacing?fieldsAlignedProof; honestoffsetInBounds;thisPlatformde-%runElab'd; buildable nested layout + ipkg; newProofs.idrwith real theorems.Verified:
idris2 --buildclean (0/0); adversarial re-verify found nobelieve_me/postulate/holes.🤖 Generated with Claude Code
Generated by Claude Code