io.Reader

struct.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
+	"io"
 	"io/ioutil"
 	"os"
 
@@ -57,16 +58,16 @@ func (l *Parser) ReadStruct(filename, format string) (interface{}, error) {
 		return nil, err
 	}
 	defer f.Close()
-	byteValue, _ := ioutil.ReadAll(f)
-	return l.ParseStruct(byteValue, format)
+	return l.ParseStruct(f, format)
 }
 
 // ParseStruct parses byte slice into map or slice
-func (l *Parser) ParseStruct(content []byte, format string) (interface{}, error) {
+func (l *Parser) ParseStruct(content io.Reader, format string) (interface{}, error) {
+	byteValue, _ := ioutil.ReadAll(content)
 	var out interface{}
 	var err error
 	if parser, ok := l.parsers[format]; ok {
-		out, err = parser(content)
+		out, err = parser(byteValue)
 	} else {
 		return nil, errors.New("Unknown file")
 	}

struct_test.go

@@ -60,7 +60,7 @@ func TestParseStruct(t *testing.T) {
 					[]string{"c", "5"}},
 			},
 			Reg: map[string]ParserFunc{
-				"bfk": func(content []byte) (interface{}, error) {
+				"bfk": func(content io.Reader) (interface{}, error) {
 					ret := map[string]interface{}{}
 					lines := strings.Split(string(content), "\n")
 					for _, line := range lines {

template.go

@@ -716,7 +716,7 @@ func xmlArray(v interface{}, roottag, itemtag string) (string, error) {
 
 func decode(s, format string) (interface{}, error) {
 	p := NewParser()
-	res, err := p.ParseStruct([]byte(s), format)
+	res, err := p.ParseStruct(strings.NewReader(s), format)
 	if err != nil {
 		return nil, fmt.Errorf("Unable to parse json '%s': %v", s, err)
 	}