Decode(Text|Binary) now accepts []byte instead of io.Reader

pgtype/timestamp.go

@@ -1,6 +1,7 @@
 package pgtype
 
 import (
+	"encoding/binary"
 	"fmt"
 	"io"
 	"reflect"
@@ -72,24 +73,13 @@ func (src *Timestamp) AssignTo(dst interface{}) error {
 
 // DecodeText decodes from src into dst. The decoded time is considered to
 // be in UTC.
-func (dst *Timestamp) DecodeText(r io.Reader) error {
-	size, err := pgio.ReadInt32(r)
-	if err != nil {
-		return err
-	}
-
-	if size == -1 {
+func (dst *Timestamp) DecodeText(src []byte) error {
+	if src == nil {
 		*dst = Timestamp{Status: Null}
 		return nil
 	}
 
-	buf := make([]byte, int(size))
-	_, err = r.Read(buf)
-	if err != nil {
-		return err
-	}
-
-	sbuf := string(buf)
+	sbuf := string(src)
 	switch sbuf {
 	case "infinity":
 		*dst = Timestamp{Status: Present, InfinityModifier: Infinity}
@@ -109,25 +99,17 @@ func (dst *Timestamp) DecodeText(r io.Reader) error {
 
 // DecodeBinary decodes from src into dst. The decoded time is considered to
 // be in UTC.
-func (dst *Timestamp) DecodeBinary(r io.Reader) error {
-	size, err := pgio.ReadInt32(r)
-	if err != nil {
-		return err
-	}
-
-	if size == -1 {
+func (dst *Timestamp) DecodeBinary(src []byte) error {
+	if src == nil {
 		*dst = Timestamp{Status: Null}
 		return nil
 	}
 
-	if size != 8 {
-		return fmt.Errorf("invalid length for timestamp: %v", size)
+	if len(src) != 8 {
+		return fmt.Errorf("invalid length for timestamp: %v", len(src))
 	}
 
-	microsecSinceY2K, err := pgio.ReadInt64(r)
-	if err != nil {
-		return err
-	}
+	microsecSinceY2K := int64(binary.BigEndian.Uint64(src))
 
 	switch microsecSinceY2K {
 	case infinityMicrosecondOffset: