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[feature] Enable Oid usage in hashtables (#11472)

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Hitesh Jasani 2019-06-11 09:06:46 -04:00 • committed by Andreas Rumpf
commit a9aef65b2d
1 changed files with 9 additions and 1 deletions
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10
lib/pure/oids.nim
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@ -15,7 +15,7 @@
## This implementation calls ``math.randomize()`` for the first call of
## ``genOid``.
import times, endians
import hashes, times, endians
type
Oid* = object ## an OID
@ -27,6 +27,14 @@ proc `==`*(oid1: Oid, oid2: Oid): bool =
## Compare two Mongo Object IDs for equality
return (oid1.time == oid2.time) and (oid1.fuzz == oid2.fuzz) and (oid1.count == oid2.count)
proc hash*(oid: Oid): Hash =
## Generate hash of Oid for use in hashtables
var h: Hash = 0
h = h !& hash(oid.time)
h = h !& hash(oid.fuzz)
h = h !& hash(oid.count)
result = !$h
proc hexbyte*(hex: char): int =
case hex
of '0'..'9': result = (ord(hex) - ord('0'))