neoneo-go/pkg/rpc/response/result/application_log.go

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package result
import (
"encoding/json"
"errors"
"fmt"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
"github.com/nspcc-dev/neo-go/pkg/util"
)
// ApplicationLog represent the results of the script executions for a block or a transaction.
type ApplicationLog struct {
Container util.Uint256
IsTransaction bool
Executions []state.Execution
}
// applicationLogAux is an auxiliary struct for ApplicationLog JSON marshalling.
type applicationLogAux struct {
TxHash *util.Uint256 `json:"txid,omitempty"`
BlockHash *util.Uint256 `json:"blockhash,omitempty"`
Executions []json.RawMessage `json:"executions"`
}
// MarshalJSON implements the json.Marshaler interface.
func (l ApplicationLog) MarshalJSON() ([]byte, error) {
result := &applicationLogAux{
Executions: make([]json.RawMessage, len(l.Executions)),
}
if l.IsTransaction {
result.TxHash = &l.Container
} else {
result.BlockHash = &l.Container
}
var err error
for i := range result.Executions {
result.Executions[i], err = json.Marshal(l.Executions[i])
if err != nil {
return nil, fmt.Errorf("failed to marshal execution #%d: %w", i, err)
}
}
return json.Marshal(result)
}
// UnmarshalJSON implements the json.Unmarshaler interface.
func (l *ApplicationLog) UnmarshalJSON(data []byte) error {
aux := new(applicationLogAux)
if err := json.Unmarshal(data, aux); err != nil {
return err
}
if aux.TxHash != nil {
l.Container = *aux.TxHash
} else if aux.BlockHash != nil {
l.Container = *aux.BlockHash
} else {
return errors.New("no block or transaction hash")
}
l.Executions = make([]state.Execution, len(aux.Executions))
for i := range l.Executions {
err := json.Unmarshal(aux.Executions[i], &l.Executions[i])
if err != nil {
return fmt.Errorf("failed to unmarshal execution #%d: %w", i, err)
}
}
return nil
}
// NewApplicationLog creates an ApplicationLog from a set of several application execution results
// including only the results with the specified trigger.
func NewApplicationLog(hash util.Uint256, aers []state.AppExecResult, trig trigger.Type) ApplicationLog {
result := ApplicationLog{
Container: hash,
IsTransaction: aers[0].Trigger == trigger.Application,
}
for _, aer := range aers {
if aer.Trigger&trig != 0 {
result.Executions = append(result.Executions, aer.Execution)
}
}
return result
}