diff options
author | Leonid Logvinov <logvinov.leon@gmail.com> | 2019-01-09 19:02:25 +0800 |
---|---|---|
committer | Leonid Logvinov <logvinov.leon@gmail.com> | 2019-01-09 19:02:25 +0800 |
commit | ea14913b412e78ff458bdfba47182f7363e776e5 (patch) | |
tree | 3ee220bfbbd9923b5e1adc36ee51f9b5d39ad640 /contracts/test-utils/src/type_encoding_utils.ts | |
parent | 5868c91cfb54cfa9177572b201d88d1168bf5b06 (diff) | |
parent | 5dd55491b86bf8577405e37d0f2d668aa1273b10 (diff) | |
download | dexon-sol-tools-ea14913b412e78ff458bdfba47182f7363e776e5.tar dexon-sol-tools-ea14913b412e78ff458bdfba47182f7363e776e5.tar.gz dexon-sol-tools-ea14913b412e78ff458bdfba47182f7363e776e5.tar.bz2 dexon-sol-tools-ea14913b412e78ff458bdfba47182f7363e776e5.tar.lz dexon-sol-tools-ea14913b412e78ff458bdfba47182f7363e776e5.tar.xz dexon-sol-tools-ea14913b412e78ff458bdfba47182f7363e776e5.tar.zst dexon-sol-tools-ea14913b412e78ff458bdfba47182f7363e776e5.zip |
Merge development
Diffstat (limited to 'contracts/test-utils/src/type_encoding_utils.ts')
-rw-r--r-- | contracts/test-utils/src/type_encoding_utils.ts | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/contracts/test-utils/src/type_encoding_utils.ts b/contracts/test-utils/src/type_encoding_utils.ts new file mode 100644 index 000000000..bfd9c9ef5 --- /dev/null +++ b/contracts/test-utils/src/type_encoding_utils.ts @@ -0,0 +1,21 @@ +import { BigNumber } from '@0x/utils'; +import BN = require('bn.js'); +import ethUtil = require('ethereumjs-util'); + +import { constants } from './constants'; + +export const typeEncodingUtils = { + encodeUint256(value: BigNumber): Buffer { + const base = 10; + const formattedValue = new BN(value.toString(base)); + const encodedValue = ethUtil.toBuffer(formattedValue); + // tslint:disable-next-line:custom-no-magic-numbers + const paddedValue = ethUtil.setLengthLeft(encodedValue, constants.WORD_LENGTH); + return paddedValue; + }, + decodeUint256(encodedValue: Buffer): BigNumber { + const formattedValue = ethUtil.bufferToHex(encodedValue); + const value = new BigNumber(formattedValue, constants.BASE_16); + return value; + }, +}; |