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export proxyUtils instead of individual functions

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This commit is contained in:
Amir Bandeali
2018-04-21 16:03:58 -07:00
parent aa3be51980
commit 1c94ab7cc3
6 changed files with 83 additions and 85 deletions
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66
packages/contracts/src/utils/asset_proxy_utils.ts
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@@ -4,37 +4,35 @@ import ethUtil = require('ethereumjs-util');
import { AssetProxyId } from './types';
export function encodeAssetProxyId(assetProxyId: AssetProxyId): Buffer {
return ethUtil.toBuffer(assetProxyId);
}
export function encodeAddress(address: string): Buffer {
if (!ethUtil.isValidAddress(address)) {
throw new Error(`Invalid Address: ${address}`);
}
const encodedAddress = ethUtil.toBuffer(address);
return encodedAddress;
}
export function encodeUint256(value: BigNumber): Buffer {
const formattedValue = new BN(value.toString(10));
const encodedValue = ethUtil.toBuffer(formattedValue);
return encodedValue;
}
export function encodeERC20ProxyData(tokenAddress: string): string {
const encodedAssetProxyId = encodeAssetProxyId(AssetProxyId.ERC20);
const encodedAddress = encodeAddress(tokenAddress);
const encodedMetadata = Buffer.concat([encodedAssetProxyId, encodedAddress]);
const encodedMetadataHex = ethUtil.bufferToHex(encodedMetadata);
return encodedMetadataHex;
}
export function encodeERC721ProxyData(tokenAddress: string, tokenId: BigNumber): string {
const encodedAssetProxyId = encodeAssetProxyId(AssetProxyId.ERC721);
const encodedAddress = encodeAddress(tokenAddress);
const encodedTokenId = encodeUint256(tokenId);
const encodedMetadata = Buffer.concat([encodedAssetProxyId, encodedAddress, encodedTokenId]);
const encodedMetadataHex = ethUtil.bufferToHex(encodedMetadata);
return encodedMetadataHex;
}
export const proxyUtils = {
encodeAssetProxyId(assetProxyId: AssetProxyId): Buffer {
return ethUtil.toBuffer(assetProxyId);
},
encodeAddress(address: string): Buffer {
if (!ethUtil.isValidAddress(address)) {
throw new Error(`Invalid Address: ${address}`);
}
const encodedAddress = ethUtil.toBuffer(address);
return encodedAddress;
},
encodeUint256(value: BigNumber): Buffer {
const formattedValue = new BN(value.toString(10));
const encodedValue = ethUtil.toBuffer(formattedValue);
return encodedValue;
},
encodeERC20ProxyData(tokenAddress: string): string {
const encodedAssetProxyId = proxyUtils.encodeAssetProxyId(AssetProxyId.ERC20);
const encodedAddress = proxyUtils.encodeAddress(tokenAddress);
const encodedMetadata = Buffer.concat([encodedAssetProxyId, encodedAddress]);
const encodedMetadataHex = ethUtil.bufferToHex(encodedMetadata);
return encodedMetadataHex;
},
encodeERC721ProxyData(tokenAddress: string, tokenId: BigNumber): string {
const encodedAssetProxyId = proxyUtils.encodeAssetProxyId(AssetProxyId.ERC721);
const encodedAddress = proxyUtils.encodeAddress(tokenAddress);
const encodedTokenId = proxyUtils.encodeUint256(tokenId);
const encodedMetadata = Buffer.concat([encodedAssetProxyId, encodedAddress, encodedTokenId]);
const encodedMetadataHex = ethUtil.bufferToHex(encodedMetadata);
return encodedMetadataHex;
},
};