1 files changed, 85 insertions, 0 deletions
diff --git a/state/log.go b/state/log.go
new file mode 100644
index 000000000..d503bd1a0
--- /dev/null
+++ b/state/log.go
@@ -0,0 +1,85 @@
+package state
+
+import (
+	"fmt"
+
+	"github.com/ethereum/go-ethereum/ethutil"
+)
+
+type Log interface {
+	ethutil.RlpEncodable
+
+	Address() []byte
+	Topics() [][]byte
+	Data() []byte
+
+	Number() uint64
+}
+
+type StateLog struct {
+	address []byte
+	topics  [][]byte
+	data    []byte
+	number  uint64
+}
+
+func NewLog(address []byte, topics [][]byte, data []byte, number uint64) *StateLog {
+	return &StateLog{address, topics, data, number}
+}
+
+func (self *StateLog) Address() []byte {
+	return self.address
+}
+
+func (self *StateLog) Topics() [][]byte {
+	return self.topics
+}
+
+func (self *StateLog) Data() []byte {
+	return self.data
+}
+
+func (self *StateLog) Number() uint64 {
+	return self.number
+}
+
+func NewLogFromValue(decoder *ethutil.Value) *StateLog {
+	log := &StateLog{
+		address: decoder.Get(0).Bytes(),
+		data:    decoder.Get(2).Bytes(),
+	}
+
+	it := decoder.Get(1).NewIterator()
+	for it.Next() {
+		log.topics = append(log.topics, it.Value().Bytes())
+	}
+
+	return log
+}
+
+func (self *StateLog) RlpData() interface{} {
+	return []interface{}{self.address, ethutil.ByteSliceToInterface(self.topics), self.data}
+}
+
+func (self *StateLog) String() string {
+	return fmt.Sprintf(`log: %x %x %x`, self.address, self.topics, self.data)
+}
+
+type Logs []Log
+
+func (self Logs) RlpData() interface{} {
+	data := make([]interface{}, len(self))
+	for i, log := range self {
+		data[i] = log.RlpData()
+	}
+
+	return data
+}
+
+func (self Logs) String() (ret string) {
+	for _, log := range self {
+		ret += fmt.Sprintf("%v", log)
+	}
+
+	return "[" + ret + "]"
+}