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CrossChainEnabledAMB.sol
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CrossChainEnabledAMB.sol
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../CrossChainEnabled.sol";
import "./LibAMB.sol";
/**
* @dev [AMB](https://docs.tokenbridge.net/amb-bridge/about-amb-bridge)
* specialization or the {CrossChainEnabled} abstraction.
*
* As of february 2020, AMB bridges are available between the following chains:
* - [ETH <> xDai](https://docs.tokenbridge.net/eth-xdai-amb-bridge/about-the-eth-xdai-amb)
* - [ETH <> qDai](https://docs.tokenbridge.net/eth-qdai-bridge/about-the-eth-qdai-amb)
* - [ETH <> ETC](https://docs.tokenbridge.net/eth-etc-amb-bridge/about-the-eth-etc-amb)
* - [ETH <> BSC](https://docs.tokenbridge.net/eth-bsc-amb/about-the-eth-bsc-amb)
* - [ETH <> POA](https://docs.tokenbridge.net/eth-poa-amb-bridge/about-the-eth-poa-amb)
* - [BSC <> xDai](https://docs.tokenbridge.net/bsc-xdai-amb/about-the-bsc-xdai-amb)
* - [POA <> xDai](https://docs.tokenbridge.net/poa-xdai-amb/about-the-poa-xdai-amb)
* - [Rinkeby <> xDai](https://docs.tokenbridge.net/rinkeby-xdai-amb-bridge/about-the-rinkeby-xdai-amb)
* - [Kovan <> Sokol](https://docs.tokenbridge.net/kovan-sokol-amb-bridge/about-the-kovan-sokol-amb)
*
* _Available since v4.6._
*/
contract CrossChainEnabledAMB is CrossChainEnabled {
address private immutable _bridge;
constructor(address bridge) {
_bridge = bridge;
}
/**
* @dev see {CrossChainEnabled-_isCrossChain}
*/
function _isCrossChain() internal view virtual override returns (bool) {
return LibAMB.isCrossChain(_bridge);
}
/**
* @dev see {CrossChainEnabled-_crossChainSender}
*/
function _crossChainSender() internal view virtual override onlyCrossChain returns (address) {
return LibAMB.crossChainSender(_bridge);
}
}