}
	return f
}

func typecheck(src string, conf *Config, info *Info) (*Package, error) {
	f := mustParse(src)
	if conf == nil {
		conf = &Config{
			Error:    func(err error) {}, // collect all errors
			Importer: defaultImporter(),
		}
	}
	return conf.Check(f.PkgName.Value, []*syntax.File{f}, info)
}

func mustTypecheck(src string, conf *Config, info *Info) *Package {
	pkg, err := typecheck(src, conf, info)

			fmt.Fprintf(&gccgoInit, "\t%s = &%s;\n", n.Mangle, n.C)
			fmt.Fprintf(fc, "\n")
		}

		fmt.Fprintf(fgo2, "var %s ", n.Mangle)
		conf.Fprint(fgo2, fset, node)
		if !*gccgo {
			fmt.Fprintf(fgo2, " = (")
			conf.Fprint(fgo2, fset, node)
			fmt.Fprintf(fgo2, ")(unsafe.Pointer(&__cgo_%s))", n.C)
		}
		fmt.Fprintf(fgo2, "\n")
	}
	if *gccgo {
		fmt.Fprintf(fc, "\n")
	}

		if x.val.Kind() == constant.Unknown {
			// nothing to do (and don't cause an error below in the overflow check)
			return
		}
		var prec uint
		if isUnsigned(x.typ) {
			prec = uint(check.conf.sizeof(x.typ) * 8)
		}
		x.val = constant.UnaryOp(op2tok[op], x.val, prec)
		x.expr = e
		check.overflow(x, opPos(x.expr))
		return
	}

	x.mode = value
	// x.typ remains unchanged
}

// After a Write has timed out, the TLS state is corrupt and all future writes will return the same error.
func (c *Conn) SetDeadline(t time.Time) error {
	return c.conn.SetDeadline(t)
}

// SetReadDeadline sets the read deadline on the underlying connection.
// A zero value for t means [Conn.Read] will not time out.
func (c *Conn) SetReadDeadline(t time.Time) error {

		clientConfig := testConfig.Clone()
		conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
		if err != nil {
			return err
		}
		if err := conn.Handshake(); err != nil {
			return err
		}
		defer conn.Close()

		if err := conn.CloseWrite(); err != nil {
			return fmt.Errorf("client CloseWrite: %v", err)
		}

		if _, err := conn.Write([]byte{0}); err != errShutdown {

		if _, err := cli.writeHandshakeRecord(m, nil); err != nil {
			testFatal(t, err)
		}
		c.Close()
	}()
	ctx := context.Background()
	conn := Server(s, serverConfig)
	ch, err := conn.readClientHello(ctx)
	if conn.vers == VersionTLS13 {
		hs := serverHandshakeStateTLS13{
			c:           conn,
			ctx:         ctx,
			clientHello: ch,
		}
		if err == nil {
			err = hs.processClientHello()
		}
		if err == nil {

}

// peekError does a read with a short timeout to check if the next read would
// cause an error, for example if there is an alert waiting on the wire.
func peekError(conn net.Conn) error {
	conn.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
	if n, err := conn.Read(make([]byte, 1)); n != 0 {
		return errors.New("unexpectedly read data")
	} else if err != nil {
		if netErr, ok := err.(net.Error); !ok || !netErr.Timeout() {

	tcpinfo.Rcv_ssthresh = conn.ssThresh
	tcpinfo.Rtt = conn.roundTripTime
	tcpinfo.Rttvar = conn.roundTripVar
	tcpinfo.Snd_ssthresh = conn.ssThresh // dummy
	tcpinfo.Snd_cwnd = conn.congestionWnd
	tcpinfo.Advmss = conn.sendMSS        // dummy
	tcpinfo.Reordering = 0               // dummy
	tcpinfo.Rcv_rtt = conn.roundTripTime // dummy
	tcpinfo.Rcv_space = conn.sendMSS     // dummy

	s := new(ForStmt)
	s.pos = p.pos()

	s.Init, s.Cond, s.Post = p.header(_For)
	s.Body = p.blockStmt("for clause")

	return s
}

func (p *parser) header(keyword token) (init SimpleStmt, cond Expr, post SimpleStmt) {
	p.want(keyword)

	if p.tok == _Lbrace {
		if keyword == _If {
			p.syntaxError("missing condition in if statement")
			cond = p.badExpr()
		}
		return
	}

	// loadPkg have been populated.
	pkgImportsLoaded
)

// has reports whether all of the flags in cond are set in f.
func (f loadPkgFlags) has(cond loadPkgFlags) bool {
	return f&cond == cond
}

// An atomicLoadPkgFlags stores a loadPkgFlags for which individual flags can be
// added atomically.
type atomicLoadPkgFlags struct {
	bits atomic.Int32