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misc pr feedback

pull/1063/head
Rob Herley 2022-04-27 22:24:16 +00:00 committed by GitHub
parent d5c547c19f
commit b68735e060
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1 changed files with 3 additions and 3 deletions
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6
packages/artifact/src/internal/crc64.ts
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@ -6,11 +6,11 @@
* but without the slicing-by-8 optimization: https://cs.opensource.google/go/go/+/master:src/hash/crc64/crc64.go
*
* This implementation uses a pregenerated table based on 0x9A6C9329AC4BC9B5 as the polynomial, the same polynomial that
* is used for Azure Storage: https://github.com/Azure/azure-storage-net
* is used for Azure Storage: https://github.com/Azure/azure-storage-net/blob/cbe605f9faa01bfc3003d75fc5a16b2eaccfe102/Lib/Common/Core/Util/Crc64.cs#L27
*/
// when transpile target is >= ES2020 (after dropping node 12) these can be changed to bigint literals - ts(2737)
const AZURE_TABLE = [
const PREGEN_POLY_TABLE = [
BigInt('0x0000000000000000'),
BigInt('0x7F6EF0C830358979'),
BigInt('0xFEDDE190606B12F2'),
@ -282,7 +282,7 @@ class CRC64 {
for (const dataByte of buffer) {
const crcByte = Number(crc & BigInt(0xff))
crc = AZURE_TABLE[crcByte ^ dataByte] ^ (crc >> BigInt(8))
crc = PREGEN_POLY_TABLE[crcByte ^ dataByte] ^ (crc >> BigInt(8))
}
this._crc = CRC64.flip64Bits(crc)