// Go type time.Time.
	if universalTag == TagUTCTime && t.tag == TagGeneralizedTime && t.class == ClassUniversal {
		universalTag = TagGeneralizedTime
	}

	if params.set {
		universalTag = TagSet
	}

	matchAnyClassAndTag := matchAny
	expectedClass := ClassUniversal
	expectedTag := universalTag

	if !params.explicit && params.tag != nil {
		expectedClass = ClassContextSpecific

		return nil, fmt.Errorf("the SAN extension is incorrectly encoded")
	}

	// Check the rawValue is a sequence.
	if !sequence.IsCompound || sequence.Tag != asn1.TagSequence || sequence.Class != asn1.ClassUniversal {
		return nil, fmt.Errorf("the SAN extension is incorrectly encoded")
	}

	ids := []Identity{}
	for bytes := sequence.Bytes; len(bytes) > 0; {
		var rawValue asn1.RawValue
		var err error

pkg encoding/asn1, const ClassContextSpecific ideal-int
pkg encoding/asn1, const ClassPrivate = 3
pkg encoding/asn1, const ClassPrivate ideal-int
pkg encoding/asn1, const ClassUniversal = 0
pkg encoding/asn1, const ClassUniversal ideal-int
pkg encoding/asn1, const TagBitString = 3
pkg encoding/asn1, const TagBitString ideal-int
pkg encoding/asn1, const TagBoolean = 1
pkg encoding/asn1, const TagBoolean ideal-int

	TagIA5String       = 22
	TagUTCTime         = 23
	TagGeneralizedTime = 24
	TagGeneralString   = 27
	TagBMPString       = 30
)

// ASN.1 class types represent the namespace of the tag.
const (
	ClassUniversal       = 0
	ClassApplication     = 1
	ClassContextSpecific = 2
	ClassPrivate         = 3
)

type tagAndLength struct {
	class, tag, length int
	isCompound         bool
}

	}

	bodyLen := t.body.Len()

	class := ClassUniversal
	if params.tag != nil {
		if params.application {
			class = ClassApplication
		} else if params.private {
			class = ClassPrivate
		} else {
			class = ClassContextSpecific
		}

		if params.explicit {
			t.tag = bytesEncoder(appendTagAndLength(t.scratch[:0], tagAndLength{ClassUniversal, tag, bodyLen, isCompound}))

			tt := new(taggedEncoder)

		{"BitString", Type, 0},
		{"BitString.BitLength", Field, 0},
		{"BitString.Bytes", Field, 0},
		{"ClassApplication", Const, 6},
		{"ClassContextSpecific", Const, 6},
		{"ClassPrivate", Const, 6},
		{"ClassUniversal", Const, 6},
		{"Enumerated", Type, 0},
		{"Flag", Type, 0},
		{"Marshal", Func, 0},
		{"MarshalWithParams", Func, 10},
		{"NullBytes", Var, 9},
		{"NullRawValue", Var, 9},