// The source code to pyflate was useful for debugging:
// http://www.paul.sladen.org/projects/pyflate

// A StructuralError is returned when the bzip2 data is found to be
// syntactically invalid.
type StructuralError string

func (s StructuralError) Error() string {
	return "bzip2 data invalid: " + string(s)
}

// A reader decompresses bzip2 compressed data.
type reader struct {

	"math"
	"math/big"
	"reflect"
	"strconv"
	"strings"
	"time"
	"unicode/utf16"
	"unicode/utf8"
)

// A StructuralError suggests that the ASN.1 data is valid, but the Go type
// which is receiving it doesn't match.
type StructuralError struct {
	Msg string
}

func (e StructuralError) Error() string { return "asn1: structure error: " + e.Msg }

// A SyntaxError suggests that the ASN.1 data is invalid.

	if !ok || matchAny {
		return nil, StructuralError{fmt.Sprintf("unknown Go type: %v", v.Type())}
	}

	if params.timeType != 0 && tag != TagUTCTime {
		return nil, StructuralError{"explicit time type given to non-time member"}
	}

	if params.stringType != 0 && tag != TagPrintableString {
		return nil, StructuralError{"explicit string type given to non-string member"}
	}

	switch tag {

		s3Select.recordReader, err = csv.NewReader(s3Select.progressReader, &s3Select.Input.CSVArgs)
		if err != nil {
			// Close all reader resources opened so far.
			s3Select.progressReader.Close()

			var stErr bzip2.StructuralError
			if errors.As(err, &stErr) {
				return errInvalidCompression(err, s3Select.Input.CompressionType)
			}
			// Test these compressor errors
			errs := []error{
				gzip.ErrHeader, gzip.ErrChecksum,

		}
	}
}

type unexported struct {
	X int
	y int
}

type exported struct {
	X int
	Y int
}

func TestUnexportedStructField(t *testing.T) {
	want := StructuralError{"struct contains unexported fields"}

	_, err := Marshal(unexported{X: 5, y: 1})
	if err != want {
		t.Errorf("got %v, want %v", err, want)
	}

	bs, err := Marshal(exported{X: 5, Y: 1})