// Or a type embedded in a constraint.
			// Nothing else is allowed.
			ty := field.Type
			if se, ok := field.Type.(*ast.StarExpr); !isInterface && ok {
				// The form *ident or *pkg.ident is only valid on
				// embedded types in structs.
				ty = se.X
			}
			constraint := false
			switch ident := ty.(type) {
			case *ast.Ident:

	}
	if o != nil {
		jar.psList = o.PublicSuffixList
	}
	return jar, nil
}

// entry is the internal representation of a cookie.
//
// This struct type is not used outside of this package per se, but the exported
// fields are those of RFC 6265.
type entry struct {
	Name       string
	Value      string
	Quoted     bool
	Domain     string
	Path       string
	SameSite   string
	Secure     bool

	// under standard cryptographic assumptions (see [Larsson] for examples).
	//
	// [Coron]: https://cs.nyu.edu/~dodis/ps/merkle.pdf
	// [Larsson]: https://web.archive.org/web/20040719170906/https://www.nada.kth.se/kurser/kth/2D1441/semteo03/lecturenotes/assump.pdf

	// Get 256 bits of entropy from rand.
	entropy := make([]byte, 32)
	if _, err := io.ReadFull(rand, entropy); err != nil {
		return nil, err
	}

		return FormatError("total sampling factors too large")
	}

	// zigStart and zigEnd are the spectral selection bounds.
	// ah and al are the successive approximation high and low values.
	// The spec calls these values Ss, Se, Ah and Al.
	//
	// For progressive JPEGs, these are the two more-or-less independent
	// aspects of progression. Spectral selection progression is when not
	// all of a block's 64 DCT coefficients are transmitted in one pass.

		if testing.Short() && i < len(digits)-4 {
			break
		}
		for exp := -30; exp <= 30; exp++ {
			for _, sign := range "+-" {
				for bits := 32; bits <= 64; bits += 32 {
					s := fmt.Sprintf("%c%se%d", sign, digits[:i], exp)
					f, err := strconv.ParseFloat(s, bits)
					if err != nil {
						log.Fatal(err)
					}
					next := math.Nextafter
					if bits == 32 {

		height            int
	}{
		// These bytes come from https://golang.org/issues/22304
		//
		// It encodes a 2147483646 × 2147483646 (i.e. 0x7ffffffe × 0x7ffffffe)
		// NRGBA image. The (width × height) per se doesn't overflow an int64, but
		// (width × height × bytesPerPixel) will.
		{
			src: []byte{
				0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,

	sosMarker  = 0xda // Start Of Scan.
	dqtMarker  = 0xdb // Define Quantization Table.
	driMarker  = 0xdd // Define Restart Interval.
	comMarker  = 0xfe // COMment.
	// "APPlication specific" markers aren't part of the JPEG spec per se,
	// but in practice, their use is described at
	// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/JPEG.html
	app0Marker  = 0xe0
	app14Marker = 0xee
	app15Marker = 0xef
)