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Refactor: handle multiple returns earlier

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Mark Spanbroek 2024-02-05 11:40:43 +01:00 committed by markspanbroek
parent 942fe034fc
commit b78463a299
1 changed files with 15 additions and 12 deletions
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27
ethers/contract.nim
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@ -78,13 +78,10 @@ proc createTransaction(contract: Contract,
gasLimit: overrides.gasLimit, gasLimit: overrides.gasLimit,
) )
proc decodeResponse(T: type, multiple: static bool, bytes: seq[byte]): T = proc decodeResponse(T: type, bytes: seq[byte]): T =
when multiple: without decoded =? AbiDecoder.decode(bytes, T):
without decoded =? AbiDecoder.decode(bytes, T): raiseContractError "unable to decode return value as " & $T
raiseContractError "unable to decode return value as " & $T return decoded
return decoded
else:
return decodeResponse((T,), true, bytes)[0]
proc call(provider: Provider, proc call(provider: Provider,
transaction: Transaction, transaction: Transaction,
@ -110,7 +107,6 @@ proc call(contract: Contract,
function: string, function: string,
parameters: tuple, parameters: tuple,
ReturnType: type, ReturnType: type,
returnMultiple: static bool,
overrides = TransactionOverrides()): Future[ReturnType] {.async.} = overrides = TransactionOverrides()): Future[ReturnType] {.async.} =
var transaction = createTransaction(contract, function, parameters, overrides) var transaction = createTransaction(contract, function, parameters, overrides)
@ -118,7 +114,7 @@ proc call(contract: Contract,
transaction.sender = some(await signer.getAddress()) transaction.sender = some(await signer.getAddress())
let response = await contract.provider.call(transaction, overrides) let response = await contract.provider.call(transaction, overrides)
return decodeResponse(ReturnType, returnMultiple, response) return decodeResponse(ReturnType, response)
proc send(contract: Contract, proc send(contract: Contract,
function: string, function: string,
@ -170,7 +166,6 @@ func addContractCall(procedure: var NimNode) =
let function = $basename(procedure[0]) let function = $basename(procedure[0])
let parameters = getParameterTuple(procedure) let parameters = getParameterTuple(procedure)
let returnType = procedure[3][0] let returnType = procedure[3][0]
let returnMultiple = returnType.isMultipleReturn.newLit
procedure.addOverrides() procedure.addOverrides()
@ -178,10 +173,18 @@ func addContractCall(procedure: var NimNode) =
if returnType.kind == nnkEmpty: if returnType.kind == nnkEmpty:
quote: quote:
await call(`contract`, `function`, `parameters`, overrides) await call(`contract`, `function`, `parameters`, overrides)
else: elif returnType.isMultipleReturn:
quote: quote:
return await call( return await call(
`contract`, `function`, `parameters`, `returnType`, `returnMultiple`, overrides) `contract`, `function`, `parameters`, `returnType`, overrides
)
else:
quote:
# solidity functions return a tuple, so wrap return type in a tuple
let tupl = await call(
`contract`, `function`, `parameters`, (`returnType`,), overrides
)
return tupl[0]
func send: NimNode = func send: NimNode =
if returnType.kind == nnkEmpty: if returnType.kind == nnkEmpty: