SendParam

Title: IStargate (Stargate v2 pool / OFT send surface) — minimal ABI-equivalent interface

Authors: David Dada <daveproxy80@gmail.com> (https://github.com/dadadave80), Vendored minimal struct subset of LayerZero's IOFT (https://github.com/LayerZero-Labs/LayerZero-v2). Upstream license: MIT., ABI-equivalent interface authored fresh from Stargate v2's public ABI (https://github.com/stargate-protocol/stargate-v2) — upstream sources are BUSL-1.1 and were NOT copied.

Minimal Stargate v2 surface the Lattice adapter dispatches through: the 3-tuple sendToken (Stargate's OFT send variant that additionally returns the bus Ticket), the quoteSend fee quote, and the token read (the pooled ERC-20 a Pool wraps). IStargate extends LayerZero's IOFT upstream; only the members this adapter calls are declared here.

LICENSING SPLIT (deliberate): the SendParam / OFTReceipt structs are vendored VERBATIM from LayerZero-v2's MIT IOFT.sol (packages/layerzero-v2/evm/oapp/contracts/oft/interfaces/IOFT.sol); the shared MessagingFee / MessagingReceipt structs are imported from the repo's existing MIT ILayerZeroEndpointV2 vendored subset. The IStargate interface itself and the Ticket struct are AUTHORED FRESH against Stargate v2's public ABI, because stargate-protocol/stargate-v2 sources (including src/interfaces/IStargate.sol) are BUSL-1.1 — no upstream Stargate text is copied. ABIs are not copyrightable expression; signatures match the canonical deployment EXACTLY. Do NOT add a stargate-v2 dependency.

Token parameters of an OFT send/sendToken: destination endpoint id, 32-byte recipient, the amount and slippage floor in LOCAL decimals, plus the executor extraOptions, optional composeMsg (destination lzCompose payload) and oftCmd (Stargate: empty = taxi, non-empty = bus).

Note:

lattice-source: Stargate

struct SendParam {
    uint32 dstEid; // Destination endpoint ID.
    bytes32 to; // Recipient address.
    uint256 amountLD; // Amount to send in local decimals.
    uint256 minAmountLD; // Minimum amount to send in local decimals.
    bytes extraOptions; // Additional options supplied by the caller to be used in the LayerZero message.
    bytes composeMsg; // The composed message for the send() operation.
    bytes oftCmd; // The OFT command to be executed, unused in default OFT implementations.
}

Properties

Name	Type	Description
dstEid	`uint32`
to	`bytes32`
amountLD	`uint256`
minAmountLD	`uint256`
extraOptions	`bytes`
composeMsg	`bytes`
oftCmd	`bytes`