Add RecordType.String.

pkg/log/log.go

@@ -189,6 +189,8 @@ const (
 // it is part of the log for a client request/response, a backend
 // request/repsonse, or neither.  Corresponds to the indicator 'b',
 // 'c' or '-' in the fourth column of verbose varnishlog output.
+//
+// Use rune(rt) for a RecordType rt to get 'b', 'c' or '-'
 type RecordType uint8
 
 const (
@@ -205,6 +207,11 @@ const (
 	None = RecordType('-')
 )
 
+// String returns "b", "c" or "-".
+func (rt RecordType) String() string {
+	return string(rt)
+}
+
 func initTags() []string {
 	var tags []string
 	if uint8(C.slt_max()) > ^uint8(0) {

pkg/log/log_test.go

@@ -91,6 +91,21 @@ func TestReasonString(t *testing.T) {
 	}
 }
 
+var expRecordTypeStr = map[RecordType]string{
+	Client:  "c",
+	Backend: "b",
+	None:    "-",
+}
+
+func TestRecordTypeString(t *testing.T) {
+	for k, v := range expRecordTypeStr {
+		if k.String() != v {
+			t.Errorf("%c.String() expected=%v got=%v", k, v,
+				k.String())
+		}
+	}
+}
+
 func TestNewRelease(t *testing.T) {
 	l := New()
 	defer l.Release()