How to deploy a contract with a token contract as a parameter?

Question

Given an interface that refers to an ERC20 token contract named XYZ, and a constructor that refers to a variable of type XYZ, how do you refer to the XYZ token contract in a contract deployment function?

Here is the interface and contract:

interface XYZ {}

contract MyContract {
    XYZ public token;

    constructor(
        XYZ _token
    ) public {
        token = _token;
    }
}

I've been trying to use the contract address of the XYZ token contract but I don't think it's working. I tried passing it as an integer and a string, but can't find anything online that talks about what to use for deployment. Here is my deployment function (using Truffle with a mainnet fork on ganache-cli):

const MyContract = artifacts.require("MyContract");
module.exports = async function (deployer) {
   await deployer.deploy(MyContract, 0x587242da6dde74aA602AF3595d271333421c7E20);
};

What should take the place of 0x587242da6dde74aA602AF3595d271333421c7E20 (the XYZ token contract address)? Thanks!

Answer 1

Javascript doesn't support integers of arbitrary length yet.

You need to pass addresses as a string.

const MyContract = artifacts.require("MyContract");
module.exports = async function (deployer) {
   await deployer.deploy(MyContract, "0x587242da6dde74aA602AF3595d271333421c7E20");
};