//
// Note that traceBlockReasons should not be compared, since reasons that are
// distinct by name may *not* be distinct by value.
type traceBlockReason uint8

const (
	traceBlockGeneric traceBlockReason = iota
	traceBlockForever
	traceBlockNet
	traceBlockSelect
	traceBlockCondWait
	traceBlockSync
	traceBlockChanSend
	traceBlockChanRecv
	traceBlockGCMarkAssist
	traceBlockGCSweep
	traceBlockSystemGoroutine

	}
	if mapfast(t) == mapslow {
		return typecheck.LookupRuntime(name, t.Key(), t.Elem(), t.Key())
	}
	return typecheck.LookupRuntime(name, t.Key(), t.Elem())
}

const (
	mapslow = iota
	mapfast32
	mapfast32ptr
	mapfast64
	mapfast64ptr
	mapfaststr
	nmapfast
)

type mapnames [nmapfast]string

func mkmapnames(base string, ptr string) mapnames {

// It is used to identify whether a flag appears;
// the standard boolean flag cannot
// distinguish missing from unset.
// It also satisfies flag.Value.
type triState int

const (
	unset triState = iota
	setTrue
	setFalse
)

func triStateFlag(name string, value triState, usage string) *triState {
	flag.Var(&value, name, usage)
	return &value
}

	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

				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

	//  of an assignment."
	//
	// Example:
	//  var x = _
	InvalidBlank

	// InvalidIota occurs when the predeclared identifier iota is used outside
	// of a constant declaration.
	//
	// Example:
	//  var x = iota
	InvalidIota

	// MissingInitBody occurs when an init function is missing its body.
	//
	// Example:
	//  func init()
	MissingInitBody

	goos     string   // copy of runtime.GOOS, used for testing
	mdnsTest mdnsTest // assume /etc/mdns.allow exists, for testing
}

// mdnsTest is for testing only.
type mdnsTest int

const (
	mdnsFromSystem mdnsTest = iota
	mdnsAssumeExists
	mdnsAssumeDoesNotExist
)

var (
	confOnce sync.Once // guards init of confVal via initConfVal
	confVal  = &conf{goos: runtime.GOOS}
)

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
)

// 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 {