)

const (
	FDFLAG_APPEND   = 0x0001
	FDFLAG_DSYNC    = 0x0002
	FDFLAG_NONBLOCK = 0x0004
	FDFLAG_RSYNC    = 0x0008
	FDFLAG_SYNC     = 0x0010
)

const (
	RIGHT_FD_DATASYNC = 1 << iota
	RIGHT_FD_READ
	RIGHT_FD_SEEK
	RIGHT_FDSTAT_SET_FLAGS
	RIGHT_FD_SYNC
	RIGHT_FD_TELL
	RIGHT_FD_WRITE
	RIGHT_FD_ADVISE
	RIGHT_FD_ALLOCATE
	RIGHT_PATH_CREATE_DIRECTORY
	RIGHT_PATH_CREATE_FILE

	ctxt            *Context  // local Context; set to nil after full expansion
}

// namedState represents the possible states that a named type may assume.
type namedState uint32

const (
	unresolved namedState = iota // tparams, underlying type and methods might be unavailable
	resolved                     // resolve has run; methods might be incomplete (for instances)
	complete                     // all data is known
)

// Type returns itself and provides an easy default implementation
// for embedding in a Node. Embedded in all non-trivial Nodes.
func (t NodeType) Type() NodeType {
	return t
}

const (
	NodeText       NodeType = iota // Plain text.
	NodeAction                     // A non-control action such as a field evaluation.
	NodeBool                       // A boolean constant.
	NodeChain                      // A sequence of field accesses.

	in.pos.Byte += size
	return int(r)
}

type token struct {
	kind   tokenKind
	pos    Position
	endPos Position
	text   string
}

type tokenKind int

const (
	_EOF tokenKind = -(iota + 1)
	_EOLCOMMENT
	_IDENT
	_STRING
	_COMMENT

	// newlines and punctuation tokens are allowed as ASCII codes.
)

func (k tokenKind) isComment() bool {
	return k == _COMMENT || k == _EOLCOMMENT

	ctxt            *Context  // local Context; set to nil after full expansion
}

// namedState represents the possible states that a named type may assume.
type namedState uint32

const (
	unresolved namedState = iota // tparams, underlying type and methods might be unavailable
	resolved                     // resolve has run; methods might be incomplete (for instances)
	complete                     // all data is known
)

				}
			case constDecl:
				// declare all constants
				for i, name := range d.spec.Names {
					obj := NewConst(name.Pos(), pkg, name.Name, nil, constant.MakeInt64(int64(d.iota)))

					var init ast.Expr
					if i < len(d.init) {
						init = d.init[i]
					}

					d := &declInfo{file: fileScope, vtyp: d.typ, init: init, inherited: d.inherited}

// mptcpStatus is a tristate for Multipath TCP, see go.dev/issue/56539
type mptcpStatus uint8

const (
	// The value 0 is the system default, linked to defaultMPTCPEnabled
	mptcpUseDefault mptcpStatus = iota
	mptcpEnabled
	mptcpDisabled
)

func (m *mptcpStatus) get() bool {
	switch *m {
	case mptcpEnabled:
		return true
	case mptcpDisabled:
		return false
	}

	scope         *Scope                    // top-most scope for lookups
	pos           syntax.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        syntax.Pos                // if valid, identifier position of a constant with inherited initializer

}

// A Kind represents the specific kind of type that a Type represents.
// The zero Kind is not a valid kind.
type Kind uint8

const (
	Invalid Kind = iota
	Bool
	Int
	Int8
	Int16
	Int32
	Int64
	Uint
	Uint8
	Uint16
	Uint32
	Uint64
	Uintptr
	Float32
	Float64
	Complex64
	Complex128
	Array
	Chan
	Func
	Interface
	Map

	"cmd/compile/internal/syntax"
	"fmt"
	"go/constant"
	. "internal/types/errors"
)

// An operandMode specifies the (addressing) mode of an operand.
type operandMode byte

const (
	invalid   operandMode = iota // operand is invalid
	novalue                      // operand represents no value (result of a function call w/o result)
	builtin                      // operand is a built-in function