all: add some godoc synopsis comments

4 files changed, 4 insertions, 0 deletions

diff --git a/core/chain_manager.go b/core/chain_manager.go
index d8123c14e..bd49bafc2 100644
--- a/core/chain_manager.go
+++ b/core/chain_manager.go
@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.
 
+// Package core implements the Ethereum consensus protocol.
 package core
 
 import (
diff --git a/core/state/statedb.go b/core/state/statedb.go
index 7271373dd..3a2ad10e2 100644
--- a/core/state/statedb.go
+++ b/core/state/statedb.go
@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.
 
+// Package state provides a caching layer atop the Ethereum state trie.
 package state
 
 import (
diff --git a/core/types/block.go b/core/types/block.go
index 45bab2c95..562fa64b9 100644
--- a/core/types/block.go
+++ b/core/types/block.go
@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.
 
+// Package types contains data types related to Ethereum consensus.
 package types
 
 import (
diff --git a/core/vm/vm.go b/core/vm/vm.go
index 3fca5f636..9b3fd0009 100644
--- a/core/vm/vm.go
+++ b/core/vm/vm.go
@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.
 
+// Package vm implements the Ethereum Virtual Machine.
 package vm
 
 import (