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authorAmir Bandeali <abandeali1@gmail.com>2018-02-09 09:09:34 +0800
committerAmir Bandeali <abandeali1@gmail.com>2018-04-21 04:56:16 +0800
commit7201a74aeaa6b646e97d7c9c2c4cc979ace5f4f7 (patch)
treef0cd69fbe346bc6e7fcd8cb1a4f010e8d4513804 /packages/contracts/util/crypto.ts
parent9e2f8bead9a51a4c30b77781ae3b39bed31c36ee (diff)
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Move utils dir into src
Diffstat (limited to 'packages/contracts/util/crypto.ts')
-rw-r--r--packages/contracts/util/crypto.ts43
1 files changed, 0 insertions, 43 deletions
diff --git a/packages/contracts/util/crypto.ts b/packages/contracts/util/crypto.ts
deleted file mode 100644
index 810072d2f..000000000
--- a/packages/contracts/util/crypto.ts
+++ /dev/null
@@ -1,43 +0,0 @@
-import BN = require('bn.js');
-import ABI = require('ethereumjs-abi');
-import ethUtil = require('ethereumjs-util');
-import * as _ from 'lodash';
-
-export const crypto = {
- /**
- * We convert types from JS to Solidity as follows:
- * BigNumber -> uint256
- * number -> uint8
- * string -> string
- * boolean -> bool
- * valid Ethereum address -> address
- */
- solSHA3(args: any[]): Buffer {
- return crypto._solHash(args, ABI.soliditySHA3);
- },
- solSHA256(args: any[]): Buffer {
- return crypto._solHash(args, ABI.soliditySHA256);
- },
- _solHash(args: any[], hashFunction: (types: string[], values: any[]) => Buffer) {
- const argTypes: string[] = [];
- _.each(args, (arg, i) => {
- const isNumber = _.isFinite(arg);
- if (isNumber) {
- argTypes.push('uint8');
- } else if (arg.isBigNumber) {
- argTypes.push('uint256');
- args[i] = new BN(arg.toString(10), 10);
- } else if (ethUtil.isValidAddress(arg)) {
- argTypes.push('address');
- } else if (_.isString(arg)) {
- argTypes.push('string');
- } else if (_.isBoolean(arg)) {
- argTypes.push('bool');
- } else {
- throw new Error(`Unable to guess arg type: ${arg}`);
- }
- });
- const hash = hashFunction(argTypes, args);
- return hash;
- },
-};