@hyperlane-xyz/utils/dist/checkpoints.js

General utilities and types for the Hyperlane network

import { utils } from 'ethers';
export function isValidSignature(signature) {
    return typeof signature === 'string'
        ? utils.isHexString(signature)
        : utils.isHexString(signature.r) &&
            utils.isHexString(signature.s) &&
            Number.isSafeInteger(signature.v);
}
export function isS3Checkpoint(obj) {
    return isValidSignature(obj.signature) && isCheckpoint(obj.value);
}
export function isS3CheckpointWithId(obj) {
    return (isValidSignature(obj.signature) &&
        isCheckpoint(obj.value.checkpoint) &&
        utils.isHexString(obj.value.message_id));
}
export function isCheckpoint(obj) {
    const isValidRoot = utils.isHexString(obj.root);
    const isValidIndex = Number.isSafeInteger(obj.index);
    const isValidMailbox = utils.isHexString(obj.merkle_tree_hook_address);
    const isValidDomain = Number.isSafeInteger(obj.mailbox_domain);
    return isValidIndex && isValidRoot && isValidMailbox && isValidDomain;
}
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