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event_sink.go
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event_sink.go
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package bvm
import (
"github.com/bcbchain/bcbchain/hyperledger/burrow/execution/errors"
"github.com/bcbchain/bcbchain/hyperledger/burrow/execution/exec"
"github.com/bcbchain/bclib/tendermint/tmlibs/log"
)
type EventSink interface {
Call(call *exec.CallEvent, exception *errors.Exception) error
CallTransfer(call *exec.TransferData, exception *errors.Exception) error
Log(log *exec.LogEvent) error
}
type BcEventSink struct {
Logger log.Logger
Tags *[]interface{}
}
func NewBcEventSink(Logger log.Logger, tags *[]interface{}) *BcEventSink {
return &BcEventSink{Logger: Logger, Tags: tags}
}
func (es *BcEventSink) Call(call *exec.CallEvent, exception *errors.Exception) error {
es.Logger.Debug("bvmCallEvent:", call)
es.Logger.Debug("bvmException:", exception)
// CallEvent
*es.Tags = append(*es.Tags, call)
// Exception
if exception != nil {
*es.Tags = append(*es.Tags, exception)
}
return nil
}
func (es *BcEventSink) CallTransfer(transfer *exec.TransferData, exception *errors.Exception) error {
es.Logger.Debug("bvmTransferEvent:", transfer)
es.Logger.Debug("bvmException:", exception)
// CallTransfer
*es.Tags = append(*es.Tags, transfer)
// Exception
if exception != nil {
*es.Tags = append(*es.Tags, exception)
}
return nil
}
func (es *BcEventSink) Log(log *exec.LogEvent) error {
es.Logger.Debug("bvmLogEvent:", log)
// LogEvent
*es.Tags = append(*es.Tags, log)
return nil
}
type logFreeEventSink struct {
EventSink
}
func NewLogFreeEventSink(eventSink EventSink) *logFreeEventSink {
return &logFreeEventSink{
EventSink: eventSink,
}
}
func (esc *logFreeEventSink) Log(log *exec.LogEvent) error {
return errors.ErrorCodef(errors.ErrorCodeIllegalWrite,
"Log emitted from contract %v, but current call should be log-free", log.Address)
}