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-rw-r--r--src/utils/constants.ts1
-rw-r--r--src/utils/utils.ts24
2 files changed, 25 insertions, 0 deletions
diff --git a/src/utils/constants.ts b/src/utils/constants.ts
index 5a5ba0e0a..ebc8586f3 100644
--- a/src/utils/constants.ts
+++ b/src/utils/constants.ts
@@ -1,4 +1,5 @@
export const constants = {
NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
TESTRPC_NETWORK_ID: 50,
+ INVALID_JUMP_IDENTIFIER: 'invalid JUMP at',
};
diff --git a/src/utils/utils.ts b/src/utils/utils.ts
index 114b46f6c..1d2e2f908 100644
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@@ -1,5 +1,8 @@
import * as _ from 'lodash';
import * as BN from 'bn.js';
+import * as ethUtil from 'ethereumjs-util';
+import * as ethABI from 'ethereumjs-abi';
+import {SolidityTypes, Order} from '../types';
export const utils = {
/**
@@ -22,6 +25,27 @@ export const utils = {
const isValid = /^0x[0-9A-F]{64}$/i.test(orderHashHex);
return isValid;
},
+ getOrderHashHex(order: Order, exchangeContractAddr: string) {
+ const orderParts = [
+ {value: exchangeContractAddr, type: SolidityTypes.address},
+ {value: order.maker, type: SolidityTypes.address},
+ {value: order.taker, type: SolidityTypes.address},
+ {value: order.makerTokenAddress, type: SolidityTypes.address},
+ {value: order.takerTokenAddress, type: SolidityTypes.address},
+ {value: order.feeRecipient, type: SolidityTypes.address},
+ {value: utils.bigNumberToBN(order.makerTokenAmount), type: SolidityTypes.uint256},
+ {value: utils.bigNumberToBN(order.takerTokenAmount), type: SolidityTypes.uint256},
+ {value: utils.bigNumberToBN(order.makerFee), type: SolidityTypes.uint256},
+ {value: utils.bigNumberToBN(order.takerFee), type: SolidityTypes.uint256},
+ {value: utils.bigNumberToBN(order.expirationUnixTimestampSec), type: SolidityTypes.uint256},
+ {value: utils.bigNumberToBN(order.salt), type: SolidityTypes.uint256},
+ ];
+ const types = _.map(orderParts, o => o.type);
+ const values = _.map(orderParts, o => o.value);
+ const hashBuff = ethABI.soliditySHA3(types, values);
+ const hashHex = ethUtil.bufferToHex(hashBuff);
+ return hashHex;
+ },
spawnSwitchErr(name: string, value: any) {
return new Error(`Unexpected switch value: ${value} encountered for ${name}`);
},