}

// HealthHandler - returns true of health
func (s *peerRESTServer) HealthHandler(w http.ResponseWriter, r *http.Request) {
	s.IsValid(w, r)
}

// VerifyBinary - verifies the downloaded binary is in-tact
func (s *peerRESTServer) VerifyBinaryHandler(w http.ResponseWriter, r *http.Request) {
	if !s.IsValid(w, r) {
		s.writeErrorResponse(w, errors.New("Invalid request"))
		return
	}

	if r.ContentLength < 0 {

	if from := n.Pos(); from.IsValid() {
		if to := n.End(); to.IsValid() {
			return p.lineFor(to) - p.lineFor(from) + 1
		}
	}
	return infinity
}

// bodySize is like nodeSize but it is specialized for *ast.BlockStmt's.
func (p *printer) bodySize(b *ast.BlockStmt, maxSize int) int {
	pos1 := b.Pos()
	pos2 := b.Rbrace
	if pos1.IsValid() && pos2.IsValid() && p.lineFor(pos1) != p.lineFor(pos2) {

	if idx >= uint32(sid.SubAuthorityCount()) {
		panic("sub-authority index out of range")
	}
	return *getSidSubAuthority(sid, idx)
}

// IsValid returns whether the SID has a valid revision and length.
func (sid *SID) IsValid() bool {
	return isValidSid(sid)
}

// Equals compares two SIDs for equality.
func (sid *SID) Equals(sid2 *SID) bool {
	return EqualSid(sid, sid2)
}

func (check *Checker) comparison(x, y *operand, op token.Token, switchCase bool) {
	// Avoid spurious errors if any of the operands has an invalid type (go.dev/issue/54405).
	if !isValid(x.typ) || !isValid(y.typ) {
		x.mode = invalid
		return
	}

	if switchCase {
		op = token.EQL
	}

	errOp := x  // operand for which error is reported, if any
	cause := "" // specific error cause, if any

                .filter(s -> !requiredValidator.isValid(source.get(s), null)).collect(Collectors.toList()));
    }

    default boolean isNonEmptyValue(final Object value) {
        final RequiredValidator requiredValidator = new RequiredValidator();
        return requiredValidator.isValid(value, null);
    }

    String getCrawlerDocumentSpaceChars();

func (check *Checker) comparison(x, y *operand, op syntax.Operator, switchCase bool) {
	// Avoid spurious errors if any of the operands has an invalid type (go.dev/issue/54405).
	if !isValid(x.typ) || !isValid(y.typ) {
		x.mode = invalid
		return
	}

	if switchCase {
		op = syntax.Eql
	}

	errOp := x  // operand for which error is reported, if any
	cause := "" // specific error cause, if any

	freeVersionID := fi.TierFreeVersionID()
	freeVersionMarker := fi.TierFreeVersion()

	// Update `xl.meta` content on each disks.
	for index := range metaArr {
		if metaArr[index].IsValid() {
			metaArr[index].ModTime = modTime
			metaArr[index].VersionID = versionID
			if !metaArr[index].InlineData() {
				// If the data is not inlined, we may end up incorrectly

func (p *parser) next0() {
	// Because of one-token look-ahead, print the previous token
	// when tracing as it provides a more readable output. The
	// very first token (!p.pos.IsValid()) is not initialized
	// (it is token.ILLEGAL), so don't print it.
	if p.trace && p.pos.IsValid() {
		s := p.tok.String()
		switch {
		case p.tok.IsLiteral():
			p.printTrace(s, p.lit)
		case p.tok.IsOperator(), p.tok.IsKeyword():

func (p *parser) next0() {
	// Because of one-token look-ahead, print the previous token
	// when tracing as it provides a more readable output. The
	// very first token (!p.pos.IsValid()) is not initialized
	// (it is token.ILLEGAL), so don't print it.
	if p.trace && p.pos.IsValid() {
		s := p.tok.String()
		switch {
		case p.tok.IsLiteral():
			p.printTrace(s, p.lit)
		case p.tok.IsOperator(), p.tok.IsKeyword():

	}

	// When looking for a user's policies, we also check if the user
	// and the groups they are member of are enabled.
	u, ok := c.iamUsersMap[name]
	if ok {
		if !u.Credentials.IsValid() {
			return nil, time.Time{}, nil
		}
	}

	// For internal IDP regular/service account user accounts, the policy
	// mapping is iamUserPolicyMap. For STS accounts, the parent user would be