Intent Core

a reasonably optimized, minimalist intent engine

execution trace:

sequenceDiagram
    SolverEOA->>+IntentCore: tx
        loop intent in intents
            IntentCore->>+Asset: transfer account to solver
            Asset->>-IntentCore: 
        end
        IntentCore->>+Solver: solve
        Solver->>-IntentCore: 
        loop intent in intents
            IntentCore->>+Asset: transfer solver to account
            Asset->>-IntentCore: 
        end
        IntentCore->>-SolverEOA: 

data type:

struct Intent {
    address account;
    address inAsset;
    address outAsset;
    uint256 inMax;
    uint256 outMin;
    uint64 deadline;
    uint8 v;
    bytes32 r;
    bytes32 s;
}

signature hash:

bytes32 hash = keccak256(
    abi.encode(
        nonce,
        intent.inAsset,
        intent.outAsset,
        intent.inMax,
        intent.outMin,
        tntent.deadline
    )
);