Fixed imports

context.go

@@ -5,6 +5,8 @@ import (
   "fmt"
   "errors"
   "runtime"
+  "crypto/sha512"
+  "encoding/binary"
 )
 
 type NodeType string
@@ -13,12 +15,6 @@ func (node NodeType) Hash() uint64 {
   return binary.BigEndian.Uint64(hash[(len(hash)-9):(len(hash)-1)])
 }
 
-type PolicyType string
-func (policy PolicyType) Hash() uint64 {
-  hash := sha512.Sum512([]byte(fmt.Sprintf("POLICY: %s", string(policy))))
-  return binary.BigEndian.Uint64(hash[(len(hash)-9):(len(hash)-1)])
-}
-
 type ExtType string
 func (ext ExtType) Hash() uint64 {
   hash := sha512.Sum512([]byte(fmt.Sprintf("EXTENSION: %s", string(ext))))

node.go

@@ -9,7 +9,6 @@ import (
   "fmt"
   "encoding/binary"
   "encoding/json"
-  "crypto/sha512"
   "sync/atomic"
 )
 

policy.go

@@ -3,6 +3,8 @@ package graphvent
 import (
   "encoding/json"
   "fmt"
+  "crypto/sha512"
+  "encoding/binary"
 )
 
 type PolicyType string