implement HeaderField.IsPseudo

header_field.go

@@ -0,0 +1,16 @@
+package qpack
+
+// A HeaderField is a name-value pair. Both the name and value are
+// treated as opaque sequences of octets.
+type HeaderField struct {
+	Name  string
+	Value string
+}
+
+// IsPseudo reports whether the header field is an HTTP3 pseudo header.
+// That is, it reports whether it starts with a colon.
+// It is not otherwise guaranteed to be a valid pseudo header field,
+// though.
+func (hf HeaderField) IsPseudo() bool {
+	return len(hf.Name) != 0 && hf.Name[0] == ':'
+}

header_field_test.go

@@ -0,0 +1,16 @@
+package qpack
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Header Field", func() {
+	It("says if it is pseudo", func() {
+		Expect((HeaderField{Name: ":status"}).IsPseudo()).To(BeTrue())
+		Expect((HeaderField{Name: ":authority"}).IsPseudo()).To(BeTrue())
+		Expect((HeaderField{Name: ":foobar"}).IsPseudo()).To(BeTrue())
+		Expect((HeaderField{Name: "status"}).IsPseudo()).To(BeFalse())
+		Expect((HeaderField{Name: "foobar"}).IsPseudo()).To(BeFalse())
+	})
+})

static_table.go

@@ -1,12 +1,5 @@
 package qpack
 
-// A HeaderField is a name-value pair. Both the name and value are
-// treated as opaque sequences of octets.
-type HeaderField struct {
-	Name  string
-	Value string
-}
-
 var staticTableEntries = [...]HeaderField{
 	{Name: ":authority"},
 	{Name: ":path", Value: "/"},