perf(erc20spl-cached): collapse ATA-existence gate to one SplCached.account(address,mint) read#240
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…ccount(address,mint) read balanceOf/allowance/approve/_transfer derived the target ATA via legacy HelperProgram.ata then read it via SplCached.account(ata) — two EVM->precompile round-trips per gate. The new ISplCached.account(address,bytes32) overload derives external_auth(owner)->ATA internally, so each gate is a single read. Behaviour unchanged. Requires the paired upstream Rome EVM SplCached read selector.
valiksinev
approved these changes
Jun 15, 2026
…r -> user Parity with the existing account(address user) overload.
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What
balanceOf,allowance,approve, and_transferderived the target ATA via the legacyHelperProgram.ata(x, mint_id)(0xff..09) then read it viaSplCached.account(ata)— two EVM→precompile round-trips per gate. They now make a singleSplCached.account(x, mint_id)call; the precompile derivesexternal_auth(owner) → ATA(mint)internally.interface.sol: addsISplCached.account(address owner, bytes32 mint)(0xf9827227), mirroringaccount(address)with an explicit mint.examples/cached.sol: worked examplespl_account_mint.Requires the paired upstream Rome EVM
SplCached.account(address,bytes32)read selector.Verify
npx hardhat compile— clean (86 files, solc 0.8.28).Pending before merge
Per-op CU A/B and derivation parity (
account(address,mint)==HelperProgram.ata) on a rebuilt wrapper (Phase 0).