// gcBlackenEnabled is 1 if mutator assists and background mark
// workers are allowed to blacken objects. This must only be set when
// gcphase == _GCmark.
var gcBlackenEnabled uint32

const (
	_GCoff             = iota // GC not running; sweeping in background, write barrier disabled
	_GCmark                   // GC marking roots and workbufs: allocate black, write barrier ENABLED

	HardwareAddr HardwareAddr // IEEE MAC-48, EUI-48 and EUI-64 form
	Flags        Flags        // e.g., FlagUp, FlagLoopback, FlagMulticast
}

type Flags uint

const (
	FlagUp           Flags = 1 << iota // interface is administratively up
	FlagBroadcast                      // interface supports broadcast access capability
	FlagLoopback                       // interface is a loopback interface

	scope         *Scope                 // top-most scope for lookups
	pos           token.Pos              // if valid, identifiers are looked up as if at position pos (used by Eval)
	iota          constant.Value         // value of iota in a constant declaration; nil otherwise
	errpos        positioner             // if set, identifier position of a constant with inherited initializer

	for _, details := range signatureAlgorithmDetails {
		if details.algo == algo {
			return details.name
		}
	}
	return strconv.Itoa(int(algo))
}

type PublicKeyAlgorithm int

const (
	UnknownPublicKeyAlgorithm PublicKeyAlgorithm = iota
	RSA
	DSA // Only supported for parsing.
	ECDSA
	Ed25519
)

var publicKeyAlgoName = [...]string{
	RSA:     "RSA",
	DSA:     "DSA",

				testClientCert(t, listName+"->"+rootName[1:]+" (fips, client cert)", pool, leaf.key, list, shouldVerifyFIPS)
				fipstls.Abandon()
			}
		}
	}
}

const (
	boringCertCA = iota
	boringCertLeaf
	boringCertFIPSOK = 0x80
)

func boringRSAKey(t *testing.T, size int) *rsa.PrivateKey {
	k, err := rsa.GenerateKey(rand.Reader, size)
	if err != nil {
		t.Fatal(err)
	}
	return k

type Frame struct {
	PC uint64
	// string ID of the function name
	Fn uint64
	// string ID of the file name
	File uint64
	Line int
}

const (
	// Special P identifiers:
	FakeP    = 1000000 + iota
	TimerP   // contains timer unblocks
	NetpollP // contains network unblocks
	SyscallP // contains returns from syscalls
	GCP      // contains GC state
	ProfileP // contains recording of CPU profile samples
)

	"errors"
	"fmt"
)

// QUICEncryptionLevel represents a QUIC encryption level used to transmit
// handshake messages.
type QUICEncryptionLevel int

const (
	QUICEncryptionLevelInitial = QUICEncryptionLevel(iota)
	QUICEncryptionLevelEarly
	QUICEncryptionLevelHandshake
	QUICEncryptionLevelApplication
)

func (l QUICEncryptionLevel) String() string {
	switch l {
	case QUICEncryptionLevelInitial:
		return "Initial"

// by just combining constant folding and constant propagation and dead code
// elimination separately.

// Three level lattice holds compile time knowledge about SSA value
const (
	top      int8 = iota // undefined
	constant             // constant
	bottom               // not a constant
)

type lattice struct {
	tag int8   // lattice type
	val *Value // constant value
}

type worklist struct {

	//	number of standard/wall indicators
	//	number of leap seconds
	//	number of transition times
	//	number of local time zones
	//	number of characters of time zone abbrev strings
	const (
		NUTCLocal = iota
		NStdWall
		NLeap
		NTime
		NZone
		NChar
	)
	var n [6]int
	for i := 0; i < 6; i++ {
		nn, ok := d.big4()
		if !ok {
			return nil, errBadData
		}
		if uint32(int(nn)) != nn {

package sha3

// spongeDirection indicates the direction bytes are flowing through the sponge.
type spongeDirection int

const (
	// spongeAbsorbing indicates that the sponge is absorbing input.
	spongeAbsorbing spongeDirection = iota
	// spongeSqueezing indicates that the sponge is being squeezed.
	spongeSqueezing
)

const (
	// maxRate is the maximum size of the internal buffer. SHAKE-256
	// currently needs the largest buffer.
	maxRate = 168