fix evmc imports

nimbus/evm/computation.nim

@@ -87,7 +87,7 @@ template getBlockNumber*(c: Computation): UInt256 =
 
 template getDifficulty*(c: Computation): DifficultyInt =
   when evmc_enabled:
-    UInt256.fromEvmc c.host.getTxContext().block_prev_randao
+    fromEvmc c.host.getTxContext().block_prev_randao
   else:
     c.vmState.difficultyOrPrevRandao
 
@@ -99,7 +99,7 @@ template getGasLimit*(c: Computation): GasInt =
 
 template getBaseFee*(c: Computation): UInt256 =
   when evmc_enabled:
-    UInt256.fromEvmc c.host.getTxContext().block_base_fee
+    fromEvmc c.host.getTxContext().block_base_fee
   else:
     c.vmState.blockCtx.baseFeePerGas.get(0.u256)
 
@@ -117,7 +117,7 @@ template getOrigin*(c: Computation): EthAddress =
 
 template getGasPrice*(c: Computation): GasInt =
   when evmc_enabled:
-    UInt256.fromEvmc(c.host.getTxContext().tx_gas_price).truncate(GasInt)
+    fromEvmc(c.host.getTxContext().tx_gas_price).truncate(GasInt)
   else:
     c.vmState.txCtx.gasPrice
 
@@ -135,7 +135,7 @@ template getVersionedHashesLen*(c: Computation): int =
 
 template getBlobBaseFee*(c: Computation): UInt256 =
   when evmc_enabled:
-    UInt256.fromEvmc c.host.getTxContext().blob_base_fee
+    fromEvmc c.host.getTxContext().blob_base_fee
   else:
     c.vmState.txCtx.blobBaseFee
 

nimbus/evm/evmc_api.nim

@@ -115,7 +115,7 @@ proc accountExists*(ctx: HostContext, address: EthAddress): bool =
 
 proc getStorage*(ctx: HostContext, address: EthAddress, key: UInt256): UInt256 =
   var key = toEvmc(key)
-  UInt256.fromEvmc ctx.host.get_storage(ctx.context, address, key.addr)
+  fromEvmc ctx.host.get_storage(ctx.context, address, key.addr)
 
 proc setStorage*(ctx: HostContext, address: EthAddress,
                  key, value: UInt256): evmc_storage_status =
@@ -125,7 +125,7 @@ proc setStorage*(ctx: HostContext, address: EthAddress,
   ctx.host.set_storage(ctx.context, address, key.addr, value.addr)
 
 proc getBalance*(ctx: HostContext, address: EthAddress): UInt256 =
-  UInt256.fromEvmc ctx.host.get_balance(ctx.context, address)
+  fromEvmc ctx.host.get_balance(ctx.context, address)
 
 proc getCodeSize*(ctx: HostContext, address: EthAddress): uint =
   ctx.host.get_code_size(ctx.context, address)
@@ -163,7 +163,7 @@ proc accessStorage*(ctx: HostContext, address: EthAddress,
 
 proc getTransientStorage*(ctx: HostContext, address: EthAddress, key: UInt256): UInt256 =
   var key = toEvmc(key)
-  UInt256.fromEvmc ctx.host.get_transient_storage(ctx.context, address, key.addr)
+  fromEvmc ctx.host.get_transient_storage(ctx.context, address, key.addr)
 
 proc setTransientStorage*(ctx: HostContext, address: EthAddress,
                  key, value: UInt256) =
@@ -179,4 +179,4 @@ template getBlockNumber*(ctx: HostContext): uint64 =
   ctx.getTxContext().block_number.uint64
 
 template getChainId*(ctx: HostContext): uint64 =
-  UInt256.fromEvmc(ctx.getTxContext().chain_id).truncate(uint64)
+  fromEvmc(ctx.getTxContext().chain_id).truncate(uint64)

nimbus/evm/evmc_helpers.nim

@@ -14,49 +14,26 @@ import
   evmc/evmc,
   ../utils/utils
 
-const
-  evmc_native* {.booldefine.} = false
+template toEvmc*(n: UInt256): evmc_uint256be =
+  cast[evmc_uint256be](n)
 
-func toEvmc*(a: EthAddress): evmc_address {.inline.} =
-  cast[evmc_address](a)
+template toEvmc*(n: Hash256): evmc_bytes32 =
+  cast[evmc_bytes32](n)
 
-func toEvmc*(h: Hash256 | ContractSalt): evmc_bytes32 {.inline.} =
-  doAssert sizeof(h) == sizeof(evmc_bytes32)
-  cast[evmc_bytes32](h)
+template toEvmc*(address: EthAddress): evmc_address =
+  cast[evmc_address](address)
 
-func toEvmc*(n: UInt256): evmc_uint256be {.inline.} =
-  when evmc_native:
-    cast[evmc_uint256be](n)
-  else:
-    cast[evmc_uint256be](n.toBytesBE)
+template fromEvmc*(n: evmc_uint256be): UInt256 =
+  cast[UInt256](n)
 
-func fromEvmc*(T: type, n: evmc_bytes32): T {.inline.} =
-  when T is Hash256 | ContractSalt:
-    doAssert sizeof(n) == sizeof(T)
-    cast[T](n)
-  elif T is UInt256:
-    when evmc_native:
-      cast[UInt256](n)
-    else:
-      UInt256.fromBytesBE(n.bytes)
-  else:
-    {.error: "cannot convert unsupported evmc type".}
+template fromEvmc*(address: evmc_address): EthAddress =
+  cast[EthAddress](address)
 
-func fromEvmc*(a: evmc_address): EthAddress {.inline.} =
-  cast[EthAddress](a)
+template flip256*(word256: evmc_uint256be): evmc_uint256be =
+  cast[evmc_uint256be](UInt256.fromBytesBE(word256.bytes).toBytes(cpuEndian))
 
-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))
-  var s = cast[ContractSalt](EMPTY_ROOT_HASH)
-  var es = toEvmc(s)
-  assert(s == fromEvmc(ContractSalt, es))
+template isCreate*(kind: evmc_call_kind): bool =
+  kind in {EVMC_CREATE, EVMC_CREATE2}
+
+template isZero*(n: evmc_bytes32): bool =
+  n == default(evmc_bytes32)

nimbus/evm/interpreter/op_handlers/oph_create.nim

@@ -145,7 +145,7 @@ const
         input_data: cpt.memory.readPtr(memPos),
         input_size: memLen.uint,
         value: toEvmc(endowment),
-        create2_salt: toEvmc(ZERO_CONTRACTSALT),
+        create2_salt: ZERO_CONTRACTSALT,
       )
       c.execSubCreate(msg)
     else:
@@ -228,7 +228,7 @@ const
         input_data: cpt.memory.readPtr(memPos),
         input_size: memLen.uint,
         value: toEvmc(endowment),
-        create2_salt: toEvmc(salt),
+        create2_salt: salt,
       )
       c.execSubCreate(msg)
     else:

nimbus/transaction/call_common.nim

@@ -14,6 +14,7 @@ import
   results,
   ../evm/[types, state, computation],
   ../evm/[precompiles, internals],
+  ../evm/state_transactions,
   ../db/ledger,
   ../common/evmforks,
   ../core/eip4844,
@@ -22,8 +23,6 @@ import
 when defined(evmc_enabled):
   import ../utils/utils
   import ./host_services
-else:
-  import ../evm/state_transactions
 
 type
   # Standard call parameters.

nimbus/transaction/host_call_nested.nim

@@ -12,7 +12,9 @@ import
   eth/common/eth_types,
   stew/ptrops,
   stint,
-  ".."/[evm/types, evm/computation],
+  ../evm/types,
+  ../evm/computation,
+  ../evm/interpreter_dispatch,
   ../utils/utils,
   "."/[host_types, host_trace]
 

nimbus/transaction/host_services.nim

@@ -13,7 +13,7 @@ import
   stint, chronicles,
   eth/common/eth_types, ../db/ledger,
   ../common/[evmforks, common],
-  ".."/[evm/state, evm/computation, evm/internals],
+  ../evm/[state, computation, internals],
   ./host_types, ./host_trace, ./host_call_nested,
   stew/saturation_arith
 

nimbus/transaction/host_types.nim

@@ -7,10 +7,13 @@
 # at your option. This file may not be copied, modified, or distributed except according to those terms.
 
 import
-  std/sets,
   stint, evmc/evmc,
   eth/common/eth_types,
-  ../evm/types
+  ../evm/types,
+  ../evm/evmc_helpers
+
+export
+  evmc_helpers
 
 # Object `TransactionHost` represents "EVMC host" to the EVM.  "Host services"
 # manage account state outside EVM such as balance transfers, storage, logs and
@@ -66,34 +69,6 @@ type
     saveComputation*: seq[Computation]
     hostInterface*:   ptr evmc_host_interface
 
-# These versions of `toEvmc` and `fromEvmc` don't flip big/little-endian like
-# the older functions in `evmc_helpers`.  New code only flips with _explicit_
-# calls to `flip256` where it is wanted.
-
-template toEvmc*(n: UInt256): evmc_uint256be =
-  cast[evmc_uint256be](n)
-
-template toEvmc*(n: Hash256): evmc_bytes32 =
-  cast[evmc_bytes32](n)
-
-template toEvmc*(address: EthAddress): evmc_address =
-  cast[evmc_address](address)
-
-template fromEvmc*(n: evmc_uint256be): UInt256 =
-  cast[UInt256](n)
-
-template fromEvmc*(address: evmc_address): EthAddress =
-  cast[EthAddress](address)
-
-template flip256*(word256: evmc_uint256be): evmc_uint256be =
-  cast[evmc_uint256be](UInt256.fromBytesBE(word256.bytes).toBytes(cpuEndian))
-
-template isCreate*(kind: EvmcCallKind): bool =
-  kind in {EVMC_CREATE, EVMC_CREATE2}
-
-template isZero*(n: evmc_bytes32): bool =
-  n == default(evmc_bytes32)
-
 # Nim quirks: Exporting `evmc_status_code` (etc) are needed to access the enum
 # values, even though alias `EnumStatusCode` is already exported.  Exporting
 # `evmc_flags` won't export the flags, `evmc_flag_bit_shifts` must be used.

nimbus/utils/utils.nim

@@ -66,8 +66,12 @@ func hasBody*(h: BlockHeader): bool =
 func generateAddress*(address: EthAddress, nonce: AccountNonce): EthAddress =
   result[0..19] = keccakHash(rlp.encodeList(address, nonce)).data.toOpenArray(12, 31)
 
-type ContractSalt* = object
-  bytes*: array[32, byte]
+when defined(evmc_enabled):
+  import evmc/evmc
+  type ContractSalt* = evmc_bytes32
+else:
+  type ContractSalt* = object
+    bytes*: array[32, byte]
 
 const ZERO_CONTRACTSALT* = default(ContractSalt)