mirror of
https://github.com/logos-storage/nim-json-rpc.git
synced 2026-01-07 08:03:07 +00:00
e0b077fea4
* Upgrade rpc router internals * use new chronos asyncraises * Fix style mismatch * Fix nim v2 compilation error * Addresing review * Remove unnecessary custom serializer and let the library do the work * fix error message * Update readme.md
45 lines
1.4 KiB
Nim
45 lines
1.4 KiB
Nim
import
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std/json,
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stint,
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../../json_rpc/private/jrpc_conv
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{.push gcsafe, raises: [].}
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template stintStr(n: UInt256|Int256): JsonNode =
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var s = n.toHex
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if s.len mod 2 != 0: s = "0" & s
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s = "0x" & s
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%s
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proc `%`*(n: UInt256): JsonNode = n.stintStr
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proc `%`*(n: Int256): JsonNode = n.stintStr
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proc writeValue*(w: var JsonWriter[JrpcConv], val: UInt256)
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{.gcsafe, raises: [IOError].} =
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writeValue(w, val.stintStr)
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proc writeValue*(w: var JsonWriter[JrpcConv], val: ref UInt256)
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{.gcsafe, raises: [IOError].} =
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writeValue(w, val[].stintStr)
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proc readValue*(r: var JsonReader[JrpcConv], v: var UInt256)
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{.gcsafe, raises: [JsonReaderError].} =
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## Allows UInt256 to be passed as a json string.
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## Expects base 16 string, starting with "0x".
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try:
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let hexStr = r.readValue string
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if hexStr.len > 64 + 2: # including "0x"
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raise newException(ValueError, "Value for '" & $v.type & "' too long for UInt256: " & $hexStr.len)
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v = hexStr.parse(StUint[256], 16) # TODO: Handle errors
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except Exception as err:
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r.raiseUnexpectedValue("Error deserializing for '" & $v.type & "' stream: " & err.msg)
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proc readValue*(r: var JsonReader[JrpcConv], v: var ref UInt256)
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{.gcsafe, raises: [JsonReaderError].} =
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## Allows ref UInt256 to be passed as a json string.
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## Expects base 16 string, starting with "0x".
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readValue(r, v[])
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{.pop.}
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