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Fixed signing_root hack (#272)

This commit is contained in:
Yuriy Glukhov 2019-05-28 16:44:25 +08:00 committed by Dustin Brody
parent 6b1f0e816c
commit f679677995
1 changed files with 8 additions and 7 deletions
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15
beacon_chain/ssz.nim
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@ -414,18 +414,19 @@ func hash_tree_root*[T](value: T): Eth2Digest =
)
iterator hash_tree_most(v: object): Chunk =
var found_field_name = false
const numFields = (proc(): int =
var o: type(v)
var i = 0
for _, _ in o.fieldPairs: inc i
i)()
var i = 0
for name, field in v.fieldPairs:
# TODO we should truncate the last field, regardless of its name.. this
# hack works for now - how to skip the last fieldPair though??
if name == "signature":
found_field_name = true
if i == numFields - 1:
break
inc i
yield hash_tree_root(field).data
doAssert found_field_name
# https://github.com/ethereum/eth2.0-specs/blob/0.4.0/specs/simple-serialize.md#signed-roots
func signing_root*[T: object](x: T): Eth2Digest =
# TODO write tests for this (check vs hash_tree_root)