// wait for the delayed stopCh before closing the handler chain (it rejects everything after Wait has been called).
		<-notAcceptingNewRequestCh.Signaled()

		// Wait for all requests to finish, which are bounded by the RequestTimeout variable.
		// once NonLongRunningRequestWaitGroup.Wait is invoked, the apiserver is
		// expected to reject any incoming request with a {503, Retry-After}

// use anywhere, but it may report a false negative if the type set has not been
// computed yet.
func hasEmptyTypeset(t Type) bool {
	if tpar, _ := Unalias(t).(*TypeParam); tpar != nil && tpar.bound != nil {
		iface, _ := safeUnderlying(tpar.bound).(*Interface)
		return iface != nil && iface.tset != nil && iface.tset.IsEmpty()
	}
	return false
}

// isGeneric reports whether a type is a generic, uninstantiated type

// use anywhere, but it may report a false negative if the type set has not been
// computed yet.
func hasEmptyTypeset(t Type) bool {
	if tpar, _ := Unalias(t).(*TypeParam); tpar != nil && tpar.bound != nil {
		iface, _ := safeUnderlying(tpar.bound).(*Interface)
		return iface != nil && iface.tset != nil && iface.tset.IsEmpty()
	}
	return false
}

// isGeneric reports whether a type is a generic, uninstantiated type

	// be read outside the lock, but is only written to with lock held.
	//
	// Both wait & notify can wrap around, and such cases will be correctly
	// handled as long as their "unwrapped" difference is bounded by 2^31.
	// For this not to be the case, we'd need to have 2^31+ goroutines
	// blocked on the same condvar, which is currently not possible.
	notify uint32

	// List of parked waiters.
	lock mutex

	// However, it is only processing functions (which
	// are processed in a delayed fashion) that may
	// add more actions (such as nested functions), so
	// this is a sufficiently bounded process.
	for i := top; i < len(check.delayed); i++ {
		a := &check.delayed[i]
		if check.conf._Trace {
			if a.desc != nil {
				check.trace(a.desc.pos.Pos(), "-- "+a.desc.format, a.desc.args...)
			} else {

	for _, c := range p.Cmds {
		n.append(c.Copy().(*CommandNode))
	}
	return n
}

func (p *PipeNode) Copy() Node {
	return p.CopyPipe()
}

// ActionNode holds an action (something bounded by delimiters).
// Control actions have their own nodes; ActionNode represents simple
// ones such as field evaluations and parenthesized pipelines.
type ActionNode struct {
	NodeType
	Pos
	tr   *Tree

	// However, it is only processing functions (which
	// are processed in a delayed fashion) that may
	// add more actions (such as nested functions), so
	// this is a sufficiently bounded process.
	for i := top; i < len(check.delayed); i++ {
		a := &check.delayed[i]
		if check.conf.Trace {
			if a.desc != nil {
				check.trace(a.desc.pos.Pos(), "-- "+a.desc.format, a.desc.args...)
			} else {

        // in.available() always returns 0 (the default).
        int skip = (int) Math.min(remaining, BUFFER_SIZE);
        if (buf == null) {
          // Allocate a buffer bounded by the maximum size that can be requested, for
          // example an array of BUFFER_SIZE is unnecessary when the value of remaining
          // is smaller.
          buf = new byte[skip];
        }

        // in.available() always returns 0 (the default).
        int skip = (int) Math.min(remaining, BUFFER_SIZE);
        if (buf == null) {
          // Allocate a buffer bounded by the maximum size that can be requested, for
          // example an array of BUFFER_SIZE is unnecessary when the value of remaining
          // is smaller.
          buf = new byte[skip];
        }

	// because there will be a policy mapping stored on drives whose
	// filename is this parentUser: therefore, it needs to have only valid
	// filename characters and needs to have bounded length.
	{
		h := sha256.New()
		h.Write([]byte("openid:" + subFromToken + ":" + issFromToken))
		bs := h.Sum(nil)
		cred.ParentUser = base64.RawURLEncoding.EncodeToString(bs)
	}