Let a migration opt in to prerequisites in other writers' namespaces (IMigrationRegistryV2) - #160
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Let a migration opt in to prerequisites in other writers' namespaces (IMigrationRegistryV2)#160thedavidmeister wants to merge 7 commits into
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…ue 159) Uncommitted work from two producers, committed as-is so it cannot be lost. Tests not yet green; see /home/gildlab/artifacts/rain.deploy-159/handoff-2.md. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Er8WeWK6pTu7imaLpEZ3bg
forge script ./script/Build.sol, as rainix-copy-artifacts runs it. Only src/generated/candidate/MigrationRegistry.sol changes; 0_1_7 and the candidate AddressRegistry are untouched. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Er8WeWK6pTu7imaLpEZ3bg
`vm.prank(w); r.f(r.head(w), ...)` pranks the head read, not the write, so every helper and inline apply reads the head into a local first. Where an assertion is only a question for distinct keys (the dependent migration reaching the other namespace; the same call landing after its prerequisite was applied elsewhere) the test assumes the distinctness and says why; the own-namespace prerequisite has its own test. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Er8WeWK6pTu7imaLpEZ3bg
Walkthrough
ChangesMigration prerequisite support
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Severity of issue fixed: Medium Merge Risk: ⚪ Minimal · up to No concrete merge-blocking behavior is established at the current head. Sequence Diagram(s)sequenceDiagram
participant Caller
participant LibMigrationRegistry
participant MigrationRegistry
participant PrerequisiteWriter
Caller->>LibMigrationRegistry: applyMigrationAfter(expectedHead, migration, prerequisites)
LibMigrationRegistry->>MigrationRegistry: validate registry code hash
LibMigrationRegistry->>MigrationRegistry: forward prerequisite-aware write
MigrationRegistry->>PrerequisiteWriter: check prerequisite records
PrerequisiteWriter-->>MigrationRegistry: applied status
MigrationRegistry-->>Caller: Migrated and MigratedAfter events
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Er8WeWK6pTu7imaLpEZ3bg
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In `@src/concrete/MigrationRegistry.sol`:
- Line 80: Update the remaining registry test handles in LibMigrationRegistry to
use IMigrationRegistryV2 instead of IMigrationRegistryV1, including return
types, casts, and stored variables, while preserving the existing deployment
behavior.
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src/generated/candidate/MigrationRegistry.solis excluded by!**/generated/**
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src/concrete/MigrationRegistry.solsrc/interface/IMigrationRegistryV2.solsrc/lib/LibMigrationRegistry.soltest/concrete/MockMigrationApplier.soltest/src/concrete/MigrationRegistryApplyMigrationAfter.t.soltest/src/lib/LibMigrationRegistry.t.sol
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…n its own function Splitting applyMigrationRecord left `appliedAt == 0` alone in checkMigrationArguments, where the timestamp detector has nothing else to attach the result to, so the start/end pair main used around the moment comparisons now wraps this one too. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Er8WeWK6pTu7imaLpEZ3bg
The concrete declares V2 only; a V1-typed handle compiled because V2 keeps the V1 ABI, but hid the After entry points from the helper. Error selectors stay on V1 where the test pins that the V1 surface is unchanged. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Er8WeWK6pTu7imaLpEZ3bg
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Er8WeWK6pTu7imaLpEZ3bg
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Closes #159
What
IMigrationRegistryV2adds an opt-in prerequisite to the two writes.applyMigrationAfter(expectedHead, migration, Prerequisite[] prerequisites)andapplyMigrationHistoryAfter(expectedHead, migration, appliedAt, Prerequisite[] prerequisites)are the plain writes with one extra refusal:PrerequisiteNotApplied(writer, migration)for the first listed(writer, migration)whose record does not exist on this registry. When every prerequisite is applied they write exactly the plain record — same slots, sameMigrated— and then emitMigratedAfter(writer, migration, prerequisites)so an indexer can rebuild the cross-namespace order without the registry storing it.MigrationRegistry is IMigrationRegistryV2;LibMigrationRegistrygetsapplyMigrationAfter/applyMigrationHistoryAfterwrappers with the same code-hash check as the rest of its surface; the candidate is regenerated; README documents the entry points.Why
A migration in one writer's namespace has no way to say it may only land once a migration in another writer's namespace has. Every such ordering in the st0x rollout is enforced by the dependent script re-deriving the other script's post-state or by a runbook. The registry is the index for exactly this fact, so the dependent script names it and the registry checks it.
Decisions (each is in the NatSpec with its reason)
IMigrationRegistryV2, V1 untouched, concrete declares only V2. V1 shipped at sol-v0.1.7 and consumers pin it. Org convention for a published interface whose function set grows is a new full standalone versioned file: rainlang.interface'sIInterpreterStoreV3is standalone and imports only types from V2 (// Exported for convenience.+ forge-lint unused-import suppression), andBaseRainlangStore is IInterpreterStoreV3, ERC165declares only the latest version. This repo's own pre-0.1.7 V2 (git show 081b04f^:src/interface/IMigrationRegistryV2.sol) was likewise standalone. V2 re-exportsMIGRATION_HEAD_GENESISand every V1 error and event unchanged, so a V1 consumer reading V2 sees the same ABI plus the additions.Prerequisite { address writer; bytes32 migration; }at file level; the keyappliedalready takes.NoPrerequisites(). A caller that chose the write that waits on something and named nothing has mis-set the list — the same stance asZeroMigrationon an uninitialised id. The plain write is right there for a migration with nothing to wait on.ZeroWriter/ZeroMigration/GenesisMigrationexactly asappliedrefuses them (the zero namespace is provably empty, so without this a zero writer would read as "unapplied forever" instead of as the unset constant it is). Two passes: every malformed argument is reported before any state is read, so a malformed entry later in the list is reported over an unapplied entry earlier in it.ZeroMigration→GenesisMigration→ZeroTimestamp→NoPrerequisites→ per-entry key refusals over the whole list →PrerequisiteNotAppliedfor the first unapplied entry →MigrationAlreadyApplied→UnexpectedMigrationHead→TimestampBeforeHead→FutureTimestamp. The caller's own arguments first (what it can fix now), then the prerequisites (a fact about the world, reported over "already applied" because a record that exists while its named prerequisites do not is the more alarming fact), then the plain write's own order unchanged.PrerequisiteNotApplied(writer, migration)by construction.applyMigrationHistoryAfteraccepts a moment earlier than its prerequisite's: another namespace's moments are that writer's data; what is checked is that the record existed when this write landed, which is chain order.MigratedAfteris a sibling event, emitted after an unchangedMigrated, by the After writes only. V2 is a strict ABI superset of V1 and oneMigratedfilter is still the complete history. Nothing new is stored: the After write's storage-write slots are asserted identical to the plain write's.Migration line item
New bytecode means a new CREATE2 address and an EMPTY registry. Candidate:
0xF288784F6d71783a0c437631bdc48753551a8cEa(codehash0xb3f85252c7fcdfc970ddf3011668ffc1de276a2495723c92a4d649cc4dc07b1e), replacing 0.1.7's0x13175E90969fE4977834210F25Fb3ED3ABBA64C7. Records on the 0.1.7 registry do not carry over. Enumerated 2026-09-08,Migratedtopic00x7758a2e9a4f791e6196587ea8cf721b01284de690cbf67ce7a0962b3c80601f6, at the 0.1.7 address on every network it is deployed on (codehash0xb9a3ed00…723cchecked on each):eth_getLogsvia arb1.arbitrum.ioeth_getProofstorageHash = empty-trie root via base-rpc.publicnode.com AND base.drpc.org; blockscout getLogs 0eth_getProofstorageHash = empty-trie root; blockscout getLogs 0eth_getProofstorageHash = empty-trie root; blockscout getLogs 0eth_getProofstorageHash = empty-trie root; blockscout getLogs 0eth_getProofstorageHash = empty-trie root; blockscout getLogs 0eth_getLogs, 189 windows of 10000 blocks from 43500000 to 45386396 via hyperliquid.drpc.org, every window answered (scratch: hyperevm-enum2.log); the deploy block is bracketed by drpceth_getCode=0xat 43500000 and code at 43540474, and theManual sol artifactsrun 32163985945 that broadcast to chain 999 forked at 43530474Nothing recorded on 0.1.7 needs re-recording on the new address.
QA
Tests added:
test/src/concrete/MigrationRegistryApplyMigrationAfter.t.sol(MigrationRegistryApplyMigrationAfterTest, 31 tests): plain record + identical storage-write slots for both After writes; unapplied prerequisite reverts then lands; prerequisite is the migration not the namespace; fuzz over a list of any length with exactly one unapplied names that entry (both writes); first unapplied named among several; empty listNoPrerequisiteson empty and used namespaces while the plain write lands;ZeroWriter/ZeroMigration/GenesisMigrationentries; key refusal order within an entry; malformed entry reported over unapplied entry (two-pass pin); first malformed reported; self-prerequisite; own earlier migration as prerequisite; duplicates checked twice; own arguments before prerequisites (incl.NoPrerequisitesafterZeroTimestamp); prerequisites beforeMigrationAlreadyApplied, beforeUnexpectedMigrationHead, beforeTimestampBeforeHead/FutureTimestamp;MigrationAlreadyAppliedbefore head; History-recorded prerequisite counts; moment not bounded by prerequisite;MigratedthenMigratedAfterfrom both writes with topic0keccak256("MigratedAfter(address,bytes32,(address,bytes32)[])")and dataabi.encode(prerequisites); event carries duplicates; no event on any revert; plain writes emit noMigratedAfter.test/src/lib/LibMigrationRegistry.t.sol(+12): both wrappers succeed, passPrerequisiteNotApplied/NoPrerequisitesthrough unmodified, land under the calling contract, and areUnexpectedMigrationRegistryCodeHashon NoRegistry / WrongCode / DelegatedCode.Discriminating tests: every test named above — each fails on base:
MigrationRegistryApplyMigrationAfter.t.soldoes not compile against main (noapplyMigrationAfter/applyMigrationHistoryAfter/Prerequisite/IMigrationRegistryV2), nor do the 12 appendedLibMigrationRegistry.t.soltests (no lib wrappers); every one of them references a symbol this PR introduces.Mutations applied: 18 mutants over the new logic (
scratch/mutate.sh, baseline faf2819, suiteforge test --match-contract MigrationRegistry, 161 tests), 18 killed, 0 survived, 0 not applied. Killers below exclude the 30LibMigrationRegistryTesttests that fail under every concrete mutant through the candidate codehash pin, andtestDeployMatchesPins; every mutant is killed by behavioural tests on its own.IMigrationRegistryV1's NatSpec for the plain write's refusals. Expected values are computed in-test independently of the implementation: "identical" is a second registry written by the plain entry point and compared record-for-record and slot-for-slot viavm.record/vm.accesses; the event topic0 iskeccak256("MigratedAfter(address,bytes32,(address,bytes32)[])")and the dataabi.encode(prerequisites), both recomputed in the test; refusal order is pinned by constructing inputs that trip two refusals at once and asserting which is reported.applyMigrationAfter(expectedHead, migration, Prerequisite[])revertingPrerequisiteNotApplied(writer, migration)for the first entry whoseappliedis zero and otherwise identical toapplyMigration, (B) the same for the history write, (C) nothing new stored, (D) the prerequisites emitted so an indexer can rebuild cross-namespace order. Covered A, B, C (slot-identity test), D (MigratedAfter). The category beyond the issue's examples — malformed entries (zero writer / zero id / genesis id), an empty list, duplicates, own-namespace and self entries, and where the check sits relative to every existing refusal — is pinned too.Local:
nix develop -c forge test— 332 passed, 61 failed; every failure is a fork test on a missing*_RPC_URL(the same 61 as main). Candidate regenerated withforge script ./script/Build.sol && forge fmt;src/generated/0_1_7/andcandidate/AddressRegistry.solunchanged.Static, locally through the repo flake on the pushed head:
forge fmt --checkclean;slither .0 results (the split had leftappliedAt == 0alone incheckMigrationArguments, where the timestamp detector flagged it; wrapped with the same start/end pair main uses around the moment comparisons);rainix-sol-single-contractexit 0;reuse lintcompliant (107/107). CI at 9115d8a:copy-artifacts,static,legalandtest(393 passed, fork tests included) green.big-blocks-toolred on all three pushes with the same cause: the nix build of rainix'srainix-staticat the pinned rainix SHA c4cf22d gets HTTP 403 from the crates.io API download endpoint forzip-2.4.2on the runner while static.crates.io serves it; nothing in this diff touches that tool, the same job passed on main on 2026-08-28, and the fix belongs in rainix (its rust shell's crate vendoring on a cache miss).