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Remove one-line hash to avoid burnMem.

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Remove unnecessary copyMem()s.
This commit is contained in:
cheatfate 2019-03-28 22:38:41 +02:00 committed by zah
parent 2f86bf21c8
commit 6f4c7b775c
1 changed files with 5 additions and 5 deletions
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10
beacon_chain/spec/digest.nim
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@ -36,8 +36,10 @@ func shortLog*(x: Eth2Digest): string =
result = ($x)[0..7]
func eth2hash*(v: openArray[byte]): Eth2Digest =
var tmp = Eth2Hash.digest v
copyMem(result.data.addr, tmp.addr, sizeof(result))
var ctx: Eth2Hash
ctx.init()
ctx.update(v)
result = ctx.finish()
template withEth2Hash*(body: untyped): Eth2Digest =
## This little helper will init the hash function and return the sliced
@ -46,9 +48,7 @@ template withEth2Hash*(body: untyped): Eth2Digest =
var h {.inject.}: Eth2Hash
h.init()
body
var res: Eth2Digest
var tmp = h.finish()
copyMem(res.data.addr, tmp.data.addr, sizeof(res))
var res = h.finish()
res
func hash*(x: Eth2Digest): Hash =