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Create Op now generates contract addresses & checks for collisions

This commit is contained in:
coffeepots 2018-09-03 19:30:27 +01:00
parent 7ed2403c5c
commit a7c1168b3a
1 changed files with 9 additions and 6 deletions
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15
nimbus/vm/interpreter/opcodes_impl.nim
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@ -546,13 +546,16 @@ op create, inline = false, value, startPosition, size:
## TODO dynamic gas that depends on remaining gas
##### getNonce type error: expression 'db' is of type: proc (vmState: untyped, readOnly: untyped, handler: untyped): untyped{.noSideEffect, gcsafe, locks: <unknown>.}
# computation.vmState.db(readOnly=true):
# let creationNonce = db.getNonce(computation.msg.storageAddress)
# db.incrementNonce(computation.msg.storageAddress)
let contractAddress = ZERO_ADDRESS # generateContractAddress(computation.msg.storageAddress, creationNonce)
var
contractAddress: EthAddress
isCollision: bool
let isCollision = false # TODO: db.accountHasCodeOrNonce ...
computation.vmState.mutateStateDB:
let creationNonce = db.getNonce(computation.msg.storageAddress)
db.setNonce(computation.msg.storageAddress, creationNonce + 1)
contractAddress = generateAddress(computation.msg.storageAddress, creationNonce)
isCollision = db.hasCodeOrNonce(contractAddress)
if isCollision:
debug("Address collision while creating contract", address = contractAddress.toHex)