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https://github.com/logos-storage/nim-ethers.git
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cac6026b34
- Enables postfix syntax: `call().reverts(reason)` - Removes doesNotRevert etc; uses `check not` instead - Removes waitFor(); return Future instead
42 lines
1.1 KiB
Nim
42 lines
1.1 KiB
Nim
import std/json
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import std/strutils
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import pkg/ethers
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proc revertReason*(e: ref JsonRpcProviderError): string =
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try:
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let json = parseJson(e.msg)
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var msg = json{"message"}.getStr
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const revertPrefixes = @[
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# hardhat
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"Error: VM Exception while processing transaction: reverted with " &
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"reason string ",
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# ganache
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"VM Exception while processing transaction: revert "
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]
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for prefix in revertPrefixes.items:
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msg = msg.replace(prefix)
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msg = msg.replace("\'")
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return msg
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except JsonParsingError:
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return ""
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proc reverts*[T](call: Future[T]): Future[bool] {.async.} =
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try:
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when T is void:
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await call
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else:
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discard await call # TODO test this
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return false
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except JsonRpcProviderError:
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return true # TODO: check that error started with revert prefix
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proc reverts*[T](call: Future[T], reason: string): Future[bool] {.async.} =
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try:
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when T is void:
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await call
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else:
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discard await call # TODO test this
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return false
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except JsonRpcProviderError as error:
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return reason == error.revertReason
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