Module 4: Size cap

Split a block into slices without signing several orders. Each fill is clamped to the cap, so one taker cannot take the whole order in one call. A minimum fill can sit beside it.

Status

Ready

Signed

Largest fill

Code · OrbuSettlementDesk.sol

function _soldFor(Order calldata o, uint256 remaining, uint256 wanted) private pure returns (uint256 sold) {
    sold = _min(wanted, remaining);
    if (o.policy.maxFill != 0) sold = _min(sold, o.policy.maxFill);
}

Tests that cover it

test_sizeCapClampsOneFill
test_minFillAllowsLastRemainder
test_allOrNothing

What it does

One fill cannot take more of the sell token than the signed cap.

On chain

Desk: Not deployed yet
Enforced: —
Roster: Opens after the token launches
Reads: the fill amount

Use it in an order