almost ready

go.mod

@@ -158,5 +158,3 @@ require (
 	gopkg.in/sourcemap.v1 v1.0.5 // indirect
 	moul.io/http2curl v1.0.0 // indirect
 )
-
-tool golang.org/x/tools/cmd/stringer

pkg/spflib/parse.go

@@ -11,6 +11,21 @@ type SPFRecord struct {
 	Parts []*SPFPart
 }
 
+// Lookups returns the number of DNS lookups required by s.
+// NB(tlim): This needs to be in this file or "gopherjs build" fails.
+func (s *SPFRecord) Lookups() int {
+	count := 0
+	for _, p := range s.Parts {
+		if p.IsLookup {
+			count++
+		}
+		if p.IncludeRecord != nil {
+			count += p.IncludeRecord.Lookups()
+		}
+	}
+	return count
+}
+
 // SPFPart stores a part of an SPF record, with attributes.
 type SPFPart struct {
 	Text          string

pkg/spflib/parse_test.go

@@ -26,20 +26,6 @@ func dump(rec *SPFRecord, indent string, w io.Writer) {
 	}
 }
 
-// Lookups returns the number of DNS lookups required by s.
-func (s *SPFRecord) Lookups() int {
-	count := 0
-	for _, p := range s.Parts {
-		if p.IsLookup {
-			count++
-		}
-		if p.IncludeRecord != nil {
-			count += p.IncludeRecord.Lookups()
-		}
-	}
-	return count
-}
-
 // Print prints an SPFRecord.
 func (s *SPFRecord) Print() string {
 	w := &bytes.Buffer{}