vm

Documentation

Index

• type CallType
• type LogEntryApi
• type OutputAccountApi
• type OutputTransferApi
• type ReturnDataKind
• type StorageUpdateApi
• type VMOutputApi
  • func (vmOutput *VMOutputApi) GetFirstReturnData(asType ReturnDataKind) (interface{}, error)

Types

type CallType

type CallType int

CallType specifies the type of SC invocation (in terms of asynchronicity)

const (
	// DirectCall means that the call is an explicit SC invocation originating from a user Transaction
	DirectCall CallType = iota

	// AsynchronousCall means that the invocation was performed from within
	// another SmartContract from another Shard, using asyncCall
	AsynchronousCall

	// AsynchronousCallBack means that an AsynchronousCall was performed
	// previously, and now the control returns to the caller SmartContract's callBack method
	AsynchronousCallBack

	// ESDTTransferAndExecute means that there is a smart contract execution after the ESDT transfer
	// this is needed in order to skip the check whether a contract is payable or not
	ESDTTransferAndExecute

	// ExecOnDestByCaller means that the call is an invocation of a built in function / smart contract from
	// another smart contract but the caller is from the previous caller
	ExecOnDestByCaller
)

type LogEntryApi

type LogEntryApi struct {
	Identifier []byte   `json:"identifier"`
	Address    string   `json:"address"`
	Topics     [][]byte `json:"topics"`
	Data       []byte   `json:"data"`
}

LogEntryApi is a wrapper over vmcommon's LogEntry

type OutputAccountApi

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"`
}

OutputAccountApi is a wrapper over vmcommon's OutputAccount

type OutputTransferApi

type OutputTransferApi struct {
	Value         *big.Int `json:"value"`
	GasLimit      uint64   `json:"gasLimit"`
	Data          []byte   `json:"data"`
	CallType      CallType `json:"callType"`
	SenderAddress string   `json:"senderAddress"`
}

OutputTransferApi is a wrapper over vmcommon's OutputTransfer

type ReturnDataKind

type ReturnDataKind int

ReturnDataKind specifies how to interpret VMOutputs's return data. More specifically, how to interpret returned data's first item.

const (
	// AsBigInt to interpret as big int
	AsBigInt ReturnDataKind = 1 << iota
	// AsBigIntString to interpret as big int string
	AsBigIntString
	// AsString to interpret as string
	AsString
	// AsHex to interpret as hex
	AsHex
)

type StorageUpdateApi

type StorageUpdateApi struct {
	Offset []byte `json:"offset"`
	Data   []byte `json:"data"`
}

StorageUpdateApi is a wrapper over vmcommon's StorageUpdate

type VMOutputApi

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"`
}

VMOutputApi is a wrapper over the vmcommon's VMOutput

func (*VMOutputApi) GetFirstReturnData

func (vmOutput *VMOutputApi) GetFirstReturnData(asType ReturnDataKind) (interface{}, error)

GetFirstReturnData is a helper function that returns the first ReturnData of VMOutput, interpreted as specified.