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vmOutputApi.go
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vmOutputApi.go
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package vm
import (
"encoding/hex"
"fmt"
"math/big"
)
// VMOutputApi is a wrapper over the vmcommon's VMOutput
type VMOutputApi struct {
ReturnData [][]byte `json:"returnData"`
ReturnCode string `json:"returnCode"`
ReturnMessage string `json:"returnMessage"`
GasRemaining uint64 `json:"gasRemaining"`
GasRefund *big.Int `json:"gasRefund"`
OutputAccounts map[string]*OutputAccountApi `json:"outputAccounts"`
DeletedAccounts [][]byte `json:"deletedAccounts"`
TouchedAccounts [][]byte `json:"touchedAccounts"`
Logs []*LogEntryApi `json:"logs"`
}
// StorageUpdateApi is a wrapper over vmcommon's StorageUpdate
type StorageUpdateApi struct {
Offset []byte `json:"offset"`
Data []byte `json:"data"`
}
// OutputAccountApi is a wrapper over vmcommon's OutputAccount
type OutputAccountApi struct {
Address string `json:"address"`
Nonce uint64 `json:"nonce"`
Balance *big.Int `json:"balance"`
BalanceDelta *big.Int `json:"balanceDelta"`
StorageUpdates map[string]*StorageUpdateApi `json:"storageUpdates"`
Code []byte `json:"code"`
CodeMetadata []byte `json:"codeMetaData"`
OutputTransfers []OutputTransferApi `json:"outputTransfers"`
CallType CallType `json:"callType"`
}
// OutputTransferApi is a wrapper over vmcommon's OutputTransfer
type OutputTransferApi struct {
Value *big.Int `json:"value"`
GasLimit uint64 `json:"gasLimit"`
Data []byte `json:"data"`
CallType CallType `json:"callType"`
SenderAddress string `json:"senderAddress"`
}
// LogEntryApi is a wrapper over vmcommon's LogEntry
type LogEntryApi struct {
Identifier []byte `json:"identifier"`
Address string `json:"address"`
Topics [][]byte `json:"topics"`
Data []byte `json:"data"`
AdditionalData [][]byte `json:"additionalData"`
}
// GetFirstReturnData is a helper function that returns the first ReturnData of VMOutput, interpreted as specified.
func (vmOutput *VMOutputApi) GetFirstReturnData(asType ReturnDataKind) (interface{}, error) {
if len(vmOutput.ReturnData) == 0 {
return nil, fmt.Errorf("no return data")
}
returnData := vmOutput.ReturnData[0]
switch asType {
case AsBigInt:
return big.NewInt(0).SetBytes(returnData), nil
case AsBigIntString:
return big.NewInt(0).SetBytes(returnData).String(), nil
case AsString:
return string(returnData), nil
case AsHex:
return hex.EncodeToString(returnData), nil
}
return nil, fmt.Errorf("can't interpret return data")
}