)

// Experiments.
const (
	// AllocFree is the alloc-free events experiment.
	AllocFree event.Experiment = 1 + iota
)

// Experimental events.
const (
	_ event.Type = 127 + iota

	// Experimental events for AllocFree.

	// Experimental heap span events. Added in Go 1.23.
	EvSpan      // heap span exists [timestamp, id, npages, type/class]

	ObjFlagStd                      // standard library package
)

// Sym.Flag
const (
	SymFlagDupok = 1 << iota
	SymFlagLocal
	SymFlagTypelink
	SymFlagLeaf
	SymFlagNoSplit
	SymFlagReflectMethod
	SymFlagGoType
)

// Sym.Flag2
const (
	SymFlagUsedInIface = 1 << iota
	SymFlagItab
	SymFlagDict
	SymFlagPkgInit
	SymFlagLinkname
	SymFlagABIWrapper
)

	Parent        uint32
}

// CounterMode tracks the "flavor" of the coverage counters being
// used in a given coverage-instrumented program.
type CounterMode uint8

const (
	CtrModeInvalid  CounterMode = iota
	CtrModeSet                  // "set" mode
	CtrModeCount                // "count" mode
	CtrModeAtomic               // "atomic" mode
	CtrModeRegOnly              // registration-only pseudo-mode

type Arg interface {
	isArg()
	String() string
}

// A Reg is a single register.
// The zero value denotes W0, not the absence of a register.
type Reg uint16

const (
	W0 Reg = iota
	W1
	W2
	W3
	W4
	W5
	W6
	W7
	W8
	W9
	W10
	W11
	W12
	W13
	W14
	W15
	W16
	W17
	W18
	W19
	W20
	W21
	W22
	W23
	W24
	W25
	W26
	W27
	W28

	BO_NOTBCR  = 4  // branch on not cr value
)

// Bit settings from the CR

const (
	C_COND_LT = iota // 0 result is negative
	C_COND_GT        // 1 result is positive
	C_COND_EQ        // 2 result is zero
	C_COND_SO        // 3 summary overflow or FP compare w/ NaN
)

const (
	C_NONE     = iota
	C_REGP     /* An even numbered gpr which can be used a gpr pair argument */
	C_REG      /* Any gpr register */

	return float64(t) / float64(time.Microsecond)
}

type GState int

const (
	GDead GState = iota
	GRunnable
	GRunning
	GWaiting
	GWaitingGC

	gStateCount
)

type ThreadState int

const (
	ThreadStateInSyscall ThreadState = iota
	ThreadStateInSyscallRuntime
	ThreadStateRunning

	threadStateCount
)

type frameNode struct {
	id       int

	// However, if there is a constant group with iota, leave it all: later
	// constant declarations in the group may have no value and so cannot stand
	// on their own, and removing any constant from the group could change the
	// values of subsequent ones.
	// See testdata/examples/iota.go for a minimal example.
	var ds []ast.Decl
	for _, d := range depDecls {
		switch d := d.(type) {

		return

	case *Const:
		check.addDeclDep(obj)
		if !isValid(typ) {
			return
		}
		if obj == universeIota {
			if check.iota == nil {
				check.error(e, InvalidIota, "cannot use iota outside constant declaration")
				return
			}
			x.val = check.iota
		} else {
			x.val = obj.val
		}
		assert(x.val != nil)
		x.mode = constant_

	case *TypeName:

)

const (
	// do not reorder
	FILE_NOTIFY_CHANGE_FILE_NAME = 1 << iota
	FILE_NOTIFY_CHANGE_DIR_NAME
	FILE_NOTIFY_CHANGE_ATTRIBUTES
	FILE_NOTIFY_CHANGE_SIZE
	FILE_NOTIFY_CHANGE_LAST_WRITE
	FILE_NOTIFY_CHANGE_LAST_ACCESS
	FILE_NOTIFY_CHANGE_CREATION
)

const (
	// do not reorder
	FILE_ACTION_ADDED = iota + 1
	FILE_ACTION_REMOVED
	FILE_ACTION_MODIFIED
	FILE_ACTION_RENAMED_OLD_NAME

// that function to allow multiple instances of that function
// to execute concurrently without clobbering each others' data.
type initContext uint8

const (
	inInitFunction initContext = iota
	inNonInitFunction
)

func (c initContext) String() string {
	if c == inInitFunction {
		return "inInitFunction"
	}
	return "inNonInitFunction"
}