feat(meta-hook): add Transfer Hook Solidity interfaces and KYCHook example#20
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feat(meta-hook): add Transfer Hook Solidity interfaces and KYCHook example#20skansal-rome wants to merge 2 commits into
skansal-rome wants to merge 2 commits into
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…acts [RED] Add Solidity contracts and Hardhat tests for the Transfer Hook interface: Contracts: - ITransferHook.sol — Interface for EVM hook contracts (onTransfer) - TransferHookBase.sol — Abstract base with onlyRouter modifier - examples/KYCHook.sol — Example KYC compliance hook with allowlist Tests (16 total): - Deployment: router address, owner, zero-address rejection - Address management: approve, revoke, non-owner rejection - onTransfer approved: succeeds for KYC'd source + destination - onTransfer non-approved: reverts TransferBlocked for source/dest/both - onlyRouter modifier: rejects non-router, allows router - Edge cases: zero amount, max uint64, approve-then-revoke All 16 tests pass — contracts have real logic as leaf implementations. The RED phase applies to the integration path where DoEvmCallback and the Router program would invoke these contracts on-chain. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Deploy script derives the router EVM address from the Meta-Hook Router program ID using keccak256(program_id ++ "callback_authority")[12..], deploys KYCHook with the derived router address, and saves deployment metadata. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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KYCHook Deploy Script AddedAdded
Usage: META_HOOK_PROGRAM_ID=MetaHk1111111111111111111111111111111111111 \
npx hardhat run scripts/deploy_kyc_hook.ts --network local🤖 This response was generated by Claude Code. |
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Summary
ITransferHookinterface for Solidity transfer hook contracts executed via Rome Meta-Hook RouterTransferHookBaseabstract contract withonlyRoutermodifier and helper methodsKYCHookexample compliance hook with address allowlist for KYC enforcementbytes32for Solana pubkeys,uint64for token amounts (matching SPL conventions)SPEC:
specs/SPEC-rome-meta-hook.md(Rome Meta-Hook Router)Part of: Multi-repo feature — Token-2022 Transfer Hook multiplexer with EVM bridge
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Test plan
npx hardhat test)npx hardhat compilesucceeds (32 contracts)🤖 Generated with Claude Code