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6bd6bae86c
Since these types were written, we've gained an executable spec: https://github.com/ethereum/execution-specs This PR aligns some of the types we use with this spec to simplify comparisons and cross-referencing. Using a `distinct` type is a tradeoff between nim ergonomics, type safety and the ability to work around nim quirks and stdlib weaknesses. In particular, it allows us to overload common functions such as `hash` with correct and performant versions as well as maintain control over string conversions etc at the cost of a little bit of ceremony when instantiating them. Apart from distinct byte types, `Hash32`, is introduced in lieu of the existing `Hash256`, again aligning this commonly used type with the spec which picks bytes rather than bits in the name.
46 lines
1.5 KiB
Nim
46 lines
1.5 KiB
Nim
# nim-eth
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# Copyright (c) 2018-2024 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at
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# https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at
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# https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except
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# according to those terms.
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import
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std/strutils,
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chronos,
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../../eth/p2p, ../../eth/common/keys, ../../eth/p2p/[discovery, enode]
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var nextPort = 30303
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proc localAddress*(port: int): Address =
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let port = Port(port)
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result = Address(udpPort: port, tcpPort: port,
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ip: parseIpAddress("127.0.0.1"))
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proc setupTestNode*(
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rng: ref HmacDrbgContext,
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capabilities: varargs[ProtocolInfo, `protocolInfo`]): EthereumNode {.gcsafe.} =
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# Don't create new RNG every time in production code!
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let keys1 = KeyPair.random(rng[])
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var node = newEthereumNode(
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keys1, localAddress(nextPort), NetworkId(1),
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addAllCapabilities = false,
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bindUdpPort = Port(nextPort), bindTcpPort = Port(nextPort),
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rng = rng)
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nextPort.inc
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for capability in capabilities:
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node.addCapability capability
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node
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template sourceDir*: string = currentSourcePath.rsplit(DirSep, 1)[0]
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proc recvMsgMock*(msg: openArray[byte]): tuple[msgId: uint, msgData: Rlp] =
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var rlp = rlpFromBytes(msg)
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let msgId = rlp.read(uint32)
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return (msgId.uint, rlp)
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