Add comment on special handling for single marshaler

prashantv · prashantv · commit c9125d33611c · 2023-04-19T07:28:03.000Z
diff --git a/zapcore/error.go b/zapcore/error.go
@@ -89,6 +89,8 @@ func encodeError(key string, err error, enc ObjectEncoder) (retErr error) {
 
 	switch {
 	case len(marshalers) == 1:
+		// Special-case handling of single marshaler to avoid an alloc
+		// converting mergedMarshalers to an ObjectMarshaler interface.
 		if err := enc.AddObject(key+"Fields", marshalers[0]); err != nil {
 			return err
 		}

Original file line number	Diff line number	Diff line change
`@@ -89,6 +89,8 @@ func encodeError(key string, err error, enc ObjectEncoder) (retErr error) {`
`89`	`89`
`90`	`90`	`switch {`
`91`	`91`	`case len(marshalers) == 1:`
	`92`	`+ // Special-case handling of single marshaler to avoid an alloc`
	`93`	`+ // converting mergedMarshalers to an ObjectMarshaler interface.`
`92`	`94`	`if err := enc.AddObject(key+"Fields", marshalers[0]); err != nil {`
`93`	`95`	`return err`
`94`	`96`	`}`