Eric fc2ffff279
address PR feedback
- add comments to hashes shim
- remove .catch from callback condition
- derive SignerError from EthersError instead of ProviderError. This allows Providers and Signers to be separate, as Ledger does it, to isolate functionality. Some signer functions now raise both ProviderError and SignerError
- Update reverts to check for SignerError
- Update ERC-20 method comment
2024-02-12 13:15:05 +11:00

49 lines
1.3 KiB
Nim

## Fixes an underlying Exception caused by missing forward declarations for
## `std/json.JsonNode.hash`, eg when using `JsonNode` as a `Table` key. Adds
## {.raises: [].} for proper exception tracking. Copied from the std/json module
import std/json
import std/hashes
{.push raises:[].}
when (NimMajor) >= 2:
proc hash*[A](x: openArray[A]): Hash =
## Efficient hashing of arrays and sequences.
## There must be a `hash` proc defined for the element type `A`.
when A is byte:
result = murmurHash(x)
elif A is char:
when nimvm:
result = hashVmImplChar(x, 0, x.high)
else:
result = murmurHash(toOpenArrayByte(x, 0, x.high))
else:
for a in x:
result = result !& hash(a)
result = !$result
func hash*(n: OrderedTable[string, JsonNode]): Hash
func hash*(n: JsonNode): Hash =
## Compute the hash for a JSON node
case n.kind
of JArray:
result = hash(n.elems)
of JObject:
result = hash(n.fields)
of JInt:
result = hash(n.num)
of JFloat:
result = hash(n.fnum)
of JBool:
result = hash(n.bval.int)
of JString:
result = hash(n.str)
of JNull:
result = Hash(0)
func hash*(n: OrderedTable[string, JsonNode]): Hash =
for key, val in n:
result = result xor (hash(key) !& hash(val))
result = !$result