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author | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-11-23 21:03:48 +0800 |
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committer | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-12-03 19:09:28 +0800 |
commit | 0faa8b3231ddfc15723a4bdda0b6ed7aeb742bd4 (patch) | |
tree | 1d1f4ec74287ff12e305a18fee459772345c2ff1 /contracts/test-utils/src/type_encoding_utils.ts | |
parent | 450c72035f13b02cb3cbd24f68a9fcb743aceb26 (diff) | |
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Refactor contracts-core into contracts-multisig, contracts-core and contracts-test-utils
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; + }, +}; |