use go 1.12

Signed-off-by: hongming <talonwan@yunify.com>

vendor/github.com/lucas-clemente/quic-go/internal/wire/blocked_frame.go

@@ -0,0 +1,45 @@
+package wire
+
+import (
+	"bytes"
+
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+	"github.com/lucas-clemente/quic-go/internal/utils"
+)
+
+// A BlockedFrame is a BLOCKED frame
+type BlockedFrame struct {
+	Offset protocol.ByteCount
+}
+
+// parseBlockedFrame parses a BLOCKED frame
+func parseBlockedFrame(r *bytes.Reader, _ protocol.VersionNumber) (*BlockedFrame, error) {
+	if _, err := r.ReadByte(); err != nil {
+		return nil, err
+	}
+	offset, err := utils.ReadVarInt(r)
+	if err != nil {
+		return nil, err
+	}
+	return &BlockedFrame{
+		Offset: protocol.ByteCount(offset),
+	}, nil
+}
+
+func (f *BlockedFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error {
+	if !version.UsesIETFFrameFormat() {
+		return (&blockedFrameLegacy{}).Write(b, version)
+	}
+	typeByte := uint8(0x08)
+	b.WriteByte(typeByte)
+	utils.WriteVarInt(b, uint64(f.Offset))
+	return nil
+}
+
+// Length of a written frame
+func (f *BlockedFrame) Length(version protocol.VersionNumber) protocol.ByteCount {
+	if !version.UsesIETFFrameFormat() {
+		return 1 + 4
+	}
+	return 1 + utils.VarIntLen(uint64(f.Offset))
+}