SablierMerkleExecute

Git Source

Inherits: ISablierMerkleExecute, ReentrancyGuard, SablierMerkleBase

Title: SablierMerkleExecute

See the documentation in ISablierMerkleExecute.

Constants

SELECTOR

The function selector to call on the target contract.

This is an immutable state variable.

bytes4 public immutable override SELECTOR

TARGET

The address of the target contract to call with the claim amount.

This is an immutable state variable.

address public immutable override TARGET

Functions

constructor

Constructs the contract by initializing the immutable state variables.

constructor(
    MerkleExecute.ConstructorParams memory campaignParams,
    address campaignCreator,
    address comptroller
)
    SablierMerkleBase(MerkleBase.ConstructorParams({
            campaignCreator: campaignCreator,
            campaignName: campaignParams.campaignName,
            campaignStartTime: campaignParams.campaignStartTime,
            claimType: ClaimType.EXECUTE,
            comptroller: comptroller,
            expiration: campaignParams.expiration,
            initialAdmin: campaignParams.initialAdmin,
            ipfsCID: campaignParams.ipfsCID,
            merkleRoot: campaignParams.merkleRoot,
            token: campaignParams.token
        }));

claimAndExecute

Claim airdrop and execute the call to the target contract.

It emits a {ClaimExecute} event. Notes:

• The function approves the exact claim amount to the {TARGET}, executes the call, then revokes the approval.
• The function does not forward native tokens to the target contract, so calls to targets that require a native token payment will revert. Requirements:
• The current time must be greater than or equal to the campaign start time.
• The campaign must not have expired.
• msg.value must not be less than the value returned by {COMPTROLLER.calculateMinFeeWei}.
• The index must not be claimed already.
• The Merkle proof must be valid.
• msg.sender must be the airdrop recipient.
• The external call to the target contract must succeed.
• The target contract must transfer the entire claim amount from the campaign.

function claimAndExecute(
    uint256 index,
    uint128 amount,
    bytes32[] calldata merkleProof,
    bytes calldata selectorArguments
)
    external
    payable
    override
    nonReentrant;

Parameters

Name	Type	Description
index	uint256	The index of msg.sender in the Merkle tree.
amount	uint128	The amount of ERC-20 tokens allocated to msg.sender.
merkleProof	bytes32[]	The proof of inclusion in the Merkle tree.
selectorArguments	bytes	The function ABI-encoded arguments for {SELECTOR}.