44 lines
1.0 KiB
Nim
44 lines
1.0 KiB
Nim
import eth/common, stint, evmc/evmc
|
|
|
|
const
|
|
evmc_native* {.booldefine.} = false
|
|
|
|
func toEvmc*(a: EthAddress): evmc_address {.inline.} =
|
|
cast[evmc_address](a)
|
|
|
|
func toEvmc*(h: Hash256): evmc_bytes32 {.inline.} =
|
|
cast[evmc_bytes32](h)
|
|
|
|
func toEvmc*(n: Uint256): evmc_uint256be {.inline.} =
|
|
when evmc_native:
|
|
cast[evmc_uint256be](n)
|
|
else:
|
|
cast[evmc_uint256be](n.toByteArrayBE)
|
|
|
|
func fromEvmc*(T: type, n: evmc_bytes32): T {.inline.} =
|
|
when T is Hash256:
|
|
cast[Hash256](n)
|
|
elif T is Uint256:
|
|
when evmc_native:
|
|
cast[Uint256](n)
|
|
else:
|
|
Uint256.fromBytesBE(n.bytes)
|
|
else:
|
|
{.error: "cannot convert unsupported evmc type".}
|
|
|
|
func fromEvmc*(a: evmc_address): EthAddress {.inline.} =
|
|
cast[EthAddress](a)
|
|
|
|
when isMainModule:
|
|
import constants
|
|
var a: evmc_address
|
|
a.bytes[19] = 3.byte
|
|
var na = fromEvmc(a)
|
|
assert(a == toEvmc(na))
|
|
var b = stuint(10, 256)
|
|
var eb = b.toEvmc
|
|
assert(b == fromEvmc(Uint256, eb))
|
|
var h = EMPTY_SHA3
|
|
var eh = toEvmc(h)
|
|
assert(h == fromEvmc(Hash256, eh))
|