IN_UNMOUNT               = 0x00002000
	IN_Q_OVERFLOW            = 0x00004000
	IN_IGNORED               = 0x00008000
	IN_CLOSE                 = (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE)
	IN_MOVE                  = (IN_MOVED_FROM | IN_MOVED_TO)
	IN_ALL_EVENTS            = (IN_ACCESS | IN_MODIFY | IN_ATTRIB |
		IN_CLOSE | IN_OPEN | IN_MOVE |
		IN_CREATE | IN_DELETE | IN_DELETE_SELF |
		IN_MOVE_SELF)
	IN_ONLYDIR                      = 0x01000000

}

// A builtinId is the id of a builtin function.
type builtinId int

const (
	// universe scope
	_Append builtinId = iota
	_Cap
	_Clear
	_Close
	_Complex
	_Copy
	_Delete
	_Imag
	_Len
	_Make
	_Max
	_Min
	_New
	_Panic
	_Print
	_Println
	_Real
	_Recover

	// package unsafe
	_Add
	_Alignof

}

// A builtinId is the id of a builtin function.
type builtinId int

const (
	// universe scope
	_Append builtinId = iota
	_Cap
	_Clear
	_Close
	_Complex
	_Copy
	_Delete
	_Imag
	_Len
	_Make
	_Max
	_Min
	_New
	_Panic
	_Print
	_Println
	_Real
	_Recover

	// package unsafe
	_Add
	_Alignof

)

// https://github.com/WebAssembly/WASI/blob/a2b96e81c0586125cc4dc79a5be0b78d9a059925/legacy/preview1/docs.md#-fd_closefd-fd---result-errno
//
//go:wasmimport wasi_snapshot_preview1 fd_close
//go:noescape
func fd_close(fd int32) Errno

// https://github.com/WebAssembly/WASI/blob/a2b96e81c0586125cc4dc79a5be0b78d9a059925/legacy/preview1/docs.md#-fd_filestat_set_sizefd-fd-size-filesize---result-errno
//

			return false
		}) {
			return
		}

		x.mode = novalue
		if check.recordTypes() {
			check.recordBuiltinType(call.Fun, makeSig(nil, x.typ))
		}

	case _Close:
		// close(c)
		if !underIs(x.typ, func(u Type) bool {
			uch, _ := u.(*Chan)
			if uch == nil {
				check.errorf(x, InvalidClose, invalidOp+"cannot close non-channel %s", x)
				return false
			}

			return false
		}) {
			return
		}

		x.mode = novalue
		if check.recordTypes() {
			check.recordBuiltinType(call.Fun, makeSig(nil, x.typ))
		}

	case _Close:
		// close(c)
		if !underIs(x.typ, func(u Type) bool {
			uch, _ := u.(*Chan)
			if uch == nil {
				check.errorf(x, InvalidClose, invalidOp+"cannot close non-channel %s", x)
				return false
			}

	IN_CLASSB_NSHIFT                            = 0x10
	IN_CLASSC_HOST                              = 0xff
	IN_CLASSC_NET                               = 0xffffff00
	IN_CLASSC_NSHIFT                            = 0x8
	IN_CLOSE                                    = 0x18
	IN_CLOSE_NOWRITE                            = 0x10
	IN_CLOSE_WRITE                              = 0x8
	IN_CREATE                                   = 0x100

		{"IN_CLASSC_NET", Const, 0},
		{"IN_CLASSC_NSHIFT", Const, 0},
		{"IN_CLASSD_HOST", Const, 0},
		{"IN_CLASSD_NET", Const, 0},
		{"IN_CLASSD_NSHIFT", Const, 0},
		{"IN_CLOEXEC", Const, 0},
		{"IN_CLOSE", Const, 0},
		{"IN_CLOSE_NOWRITE", Const, 0},
		{"IN_CLOSE_WRITE", Const, 0},
		{"IN_CREATE", Const, 0},
		{"IN_DELETE", Const, 0},
		{"IN_DELETE_SELF", Const, 0},
		{"IN_DONT_FOLLOW", Const, 0},