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Create LibAssetProxyIds

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This commit is contained in:
Amir Bandeali
2019-05-26 14:39:31 -07:00
parent cf04062a19
commit 2cd4d9004c
3 changed files with 49 additions and 6 deletions
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8
contracts/asset-proxy/contracts/src/interfaces/IAssetData.sol
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@@ -35,6 +35,14 @@ interface IAssetData {
)
external;
function ERC1155Assets(
address tokenContract,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
)
external;
function MultiAsset(
uint256[] calldata amounts,
bytes[] calldata nestedAssetData

10
contracts/asset-proxy/contracts/src/libs/LibAssetData.sol
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@@ -23,14 +23,12 @@ import "@0x/contracts-utils/contracts/src/LibBytes.sol";
import "@0x/contracts-erc1155/contracts/src/interfaces/IERC1155.sol";
import "@0x/contracts-erc20/contracts/src/interfaces/IERC20Token.sol";
import "@0x/contracts-erc721/contracts/src/interfaces/IERC721Token.sol";
import "./LibAssetProxyIds.sol";
library LibAssetData {
bytes4 constant public ERC20_PROXY_ID = bytes4(keccak256("ERC20Token(address)"));
bytes4 constant public ERC721_PROXY_ID = bytes4(keccak256("ERC721Token(address,uint256)"));
bytes4 constant public ERC1155_PROXY_ID = bytes4(keccak256("ERC1155Assets(address,uint256[],uint256[],bytes)"));
bytes4 constant public MULTI_ASSET_PROXY_ID = bytes4(keccak256("MultiAsset(uint256[],bytes[])"));
contract LibAssetData is
LibAssetProxyIds
{
/// @dev Returns the owner's balance of the token(s) specified in
/// assetData. When the asset data contains multiple tokens (eg in
/// ERC1155 or Multi-Asset), the return value indicates how many

37
contracts/asset-proxy/contracts/src/libs/LibAssetProxyIds.sol Normal file
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@@ -0,0 +1,37 @@
/*
Copyright 2019 ZeroEx Intl.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
pragma solidity ^0.5.5;
contract LibAssetProxyIds {
// AssetProxy Ids are equiavalent the first 4 bytes of the keccak256 hash of the function signature assigned to each AssetProxy.
// ERC20Token(address)
bytes4 constant public ERC20_PROXY_ID = 0xf47261b0;
// ERC721Token(address,uint256)
bytes4 constant public ERC721_PROXY_ID = 0x02571792;
// ERC1155Assets(address,uint256[],uint256[],bytes)
bytes4 constant public ERC1155_PROXY_ID = 0xa7cb5fb7;
// MultiAsset(uint256[],bytes[])
bytes4 constant public MULTI_ASSET_PROXY_ID = 0x94cfcdd7;
}