core, eth: pre-allocate map in storage copy (#25279)

3 years ago · 44893be0d6
parent 714fb302a5
commit 44893be0d6
2 changed files with 2 additions and 2 deletions
--- a/core/state/state_object.go
+++ b/core/state/state_object.go
@ -49,7 +49,7 @@ func (s Storage) String() (str string) {
 }

 func (s Storage) Copy() Storage {
-	cpy := make(Storage)
+	cpy := make(Storage, len(s))
 	for key, value := range s {
 		cpy[key] = value
 	}
--- a/eth/tracers/logger/logger.go
+++ b/eth/tracers/logger/logger.go
@ -40,7 +40,7 @@ type Storage map[common.Hash]common.Hash

 // Copy duplicates the current storage.
 func (s Storage) Copy() Storage {
-	cpy := make(Storage)
+	cpy := make(Storage, len(s))
 	for key, value := range s {
 		cpy[key] = value
 	}