update comments

Author: zhangchiqing

ledger/complete/wal/checkpoint_node_iterator.go

@@ -16,12 +16,6 @@ import (
 	"github.com/onflow/flow-go/ledger/complete/payloadless"
 )
 
-// encLeafHashFlagSize is the size of the V7 leaf-hash presence flag (1 byte).
-// The remaining node field sizes are shared with [checkpoint_v7_convert_stream.go]
-// (encNodeTypeSize, encHeightSize, encHashSize, encPathSize, encNodeIndexSize,
-// encPayloadLengthSize, fixedNodePrefixSize, leafNodeTypeByte, interimNodeTypeByte).
-const encLeafHashFlagSize = 1
-
 // ErrCheckpointIntegrity indicates that a checkpoint's trie structure is corrupt:
 // either an interim node references a child that has not been seen yet (a forward
 // or out-of-range reference, violating the descendants-first ordering), or a node

ledger/complete/wal/checkpoint_v7_convert_stream.go

@@ -28,6 +28,11 @@ const (
 	encNodeIndexSize     = 8
 	encPayloadLengthSize = 4
 
+	// encLeafHashFlagSize is the size of the V7 leaf-hash presence flag (1 byte).
+	// This must match the (unexported) encLeafHashFlagSize in
+	// ledger/complete/payloadless/flattener.go, which writes this flag.
+	encLeafHashFlagSize = 1
+
 	// fixedNodePrefixSize is the size of the leading bytes shared by every
 	// encoded node (leaf or interim): node type + height + node hash.
 	fixedNodePrefixSize = encNodeTypeSize + encHeightSize + encHashSize