rlp, trie, contracts, compression, consensus: improve comments (#14580)

trie/hasher.go

@@ -50,7 +50,7 @@ func returnHasherToPool(h *hasher) {
 }
 
 // hash collapses a node down into a hash node, also returning a copy of the
-// original node initialzied with the computed hash to replace the original one.
+// original node initialized with the computed hash to replace the original one.
 func (h *hasher) hash(n node, db DatabaseWriter, force bool) (node, node, error) {
 	// If we're not storing the node, just hashing, use available cached data
 	if hash, dirty := n.cache(); hash != nil {

trie/secure_trie_test.go

@@ -51,7 +51,7 @@ func makeTestSecureTrie() (ethdb.Database, *SecureTrie, map[string][]byte) {
 		content[string(key)] = val
 		trie.Update(key, val)
 
-		// Add some other data to inflate th trie
+		// Add some other data to inflate the trie
 		for j := byte(3); j < 13; j++ {
 			key, val = common.LeftPadBytes([]byte{j, i}, 32), []byte{j, i}
 			content[string(key)] = val

trie/sync_test.go

@@ -42,7 +42,7 @@ func makeTestTrie() (ethdb.Database, *Trie, map[string][]byte) {
 		content[string(key)] = val
 		trie.Update(key, val)
 
-		// Add some other data to inflate th trie
+		// Add some other data to inflate the trie
 		for j := byte(3); j < 13; j++ {
 			key, val = common.LeftPadBytes([]byte{j, i}, 32), []byte{j, i}
 			content[string(key)] = val
@@ -78,7 +78,7 @@ func checkTrieConsistency(db Database, root common.Hash) error {
 	// Create and iterate a trie rooted in a subnode
 	trie, err := New(root, db)
 	if err != nil {
-		return nil // // Consider a non existent state consistent
+		return nil // Consider a non existent state consistent
 	}
 	it := trie.NodeIterator(nil)
 	for it.Next(true) {
@@ -310,7 +310,7 @@ func TestIncompleteTrieSync(t *testing.T) {
 		for _, result := range results {
 			added = append(added, result.Hash)
 		}
-		// Check that all known sub-tries in the synced trie is complete
+		// Check that all known sub-tries in the synced trie are complete
 		for _, root := range added {
 			if err := checkTrieConsistency(dstDb, root); err != nil {
 				t.Fatalf("trie inconsistent: %v", err)

trie/trie.go

@@ -40,7 +40,7 @@ var (
 )
 
 // CacheMisses retrieves a global counter measuring the number of cache misses
-// the trie did since process startup. This isn't useful for anything apart from
+// the trie had since process startup. This isn't useful for anything apart from
 // trie debugging purposes.
 func CacheMisses() int64 {
 	return cacheMissCounter.Count()
@@ -87,14 +87,14 @@ type Trie struct {
 	originalRoot common.Hash
 
 	// Cache generation values.
-	// cachegen increase by one with each commit operation.
+	// cachegen increases by one with each commit operation.
 	// new nodes are tagged with the current generation and unloaded
 	// when their generation is older than than cachegen-cachelimit.
 	cachegen, cachelimit uint16
 }
 
 // SetCacheLimit sets the number of 'cache generations' to keep.
-// A cache generations is created by a call to Commit.
+// A cache generation is created by a call to Commit.
 func (t *Trie) SetCacheLimit(l uint16) {
 	t.cachelimit = l
 }