"go/ast"
	"reflect"
)

// Expression expression interface
type Expression interface {
	Build(builder Builder)
}

// NegationExpressionBuilder negation expression builder
type NegationExpressionBuilder interface {
	NegationBuild(builder Builder)
}

// Expr raw expression
type Expr struct {
	SQL                string
	Vars               []interface{}
	WithoutParentheses bool
}

	gorm.Dialector
}

type printSQLLogger struct {
	logger.Interface
}

func (l *printSQLLogger) Trace(ctx context.Context, begin time.Time, fc func() (sql string, rowsAffected int64), err error) {
	sql, _ := fc()
	fmt.Println(sql + ";")
	l.Interface.Trace(ctx, begin, fc, err)
}

// GormDataTypeInterface gorm data type interface
type GormDataTypeInterface interface {
	GormDBDataType(*gorm.DB, *schema.Field) string
}

	)
	cases := []struct {
		str string
		res []interface{}
	}{
		{"s.title", []interface{}{"Murder on the Orient Express", "The Robots of Dawn", "Pigs Have Wings"}},
		{"s.authorInfo.yearRange", []interface{}{[]interface{}{1890.0, 1976.0}, []interface{}{1920.0, 1992.0}, []interface{}{1881.0, 1975.0}}},
		{"s.authorInfo.name", []interface{}{"Agatha Christie", "Isaac Asimov", "P. G. Wodehouse"}},

	"github.com/jinzhu/now"
	"gorm.io/gorm/clause"
	"gorm.io/gorm/schema"
)

type DeletedAt sql.NullTime

// Scan implements the Scanner interface.
func (n *DeletedAt) Scan(value interface{}) error {
	return (*sql.NullTime)(n).Scan(value)
}

// Value implements the driver Valuer interface.
func (n DeletedAt) Value() (driver.Value, error) {
	if !n.Valid {
		return nil, nil
	}
	return n.Time, nil
}

				convertParams(reflect.Indirect(rv).Interface(), idx)
			} else if isNumeric(rv.Kind()) {
				if rv.CanInt() || rv.CanUint() {
					vars[idx] = fmt.Sprintf("%d", rv.Interface())
				} else {
					vars[idx] = fmt.Sprintf("%.6f", rv.Interface())
				}
			} else {
				for _, t := range convertibleTypes {
					if rv.Type().ConvertibleTo(t) {
						convertParams(rv.Convert(t).Interface(), idx)
						return
					}
				}

//
// [docs]: https://gorm.io/docs/sql_builder.html#Clauses
func (db *DB) Clauses(conds ...clause.Expression) (tx *DB) {
	tx = db.getInstance()
	var whereConds []interface{}

	for _, cond := range conds {
		if c, ok := cond.(clause.Interface); ok {
			tx.Statement.AddClause(c)
		} else if optimizer, ok := cond.(StatementModifier); ok {
			optimizer.ModifyStatement(tx.Statement)
		} else {

	"time"

	"gorm.io/gorm/logger"
)

type Tracer struct {
	Logger logger.Interface
	Test   func(ctx context.Context, begin time.Time, fc func() (sql string, rowsAffected int64), err error)
}

func (S Tracer) LogMode(level logger.LogLevel) logger.Interface {
	return S.Logger.LogMode(level)
}

func (S Tracer) Info(ctx context.Context, s string, i ...interface{}) {
	S.Logger.Info(ctx, s, i...)
}

func (r *ReqInfo) GetTagsMap() map[string]interface{} {
	if r == nil {
		return nil
	}
	r.RLock()
	defer r.RUnlock()
	m := make(map[string]interface{}, len(r.tags))
	for _, t := range r.tags {
		m[t.Key] = t.Val
	}
	return m
}

// PopulateTagsMap - returns the user defined tags in a map structure
func (r *ReqInfo) PopulateTagsMap(tagsMap map[string]interface{}) {
	if r == nil {
		return
	}

		Control: func(network, address string, c syscall.RawConn) error {
			c.Control(func(fdPtr uintptr) {
				if opts.Interface != "" {
					// When interface is specified look for specifically port availability on
					// the specified interface if any.
					_ = syscall.SetsockoptString(int(fdPtr), syscall.SOL_SOCKET, syscall.SO_BINDTODEVICE, opts.Interface)
				}
			})
			return nil
		},
	}

		return err
	}
	defer res.Body.Close()

	var v map[string]interface{}
	found := false
	if err := json.NewDecoder(res.Body).Decode(&v); err != nil {
		return fmt.Errorf("Error parsing response body: %v", err)
	}

	indices, ok := v["indices"].([]interface{})
	if ok {
		for _, index := range indices {
			name := index.(map[string]interface{})["name"]
			if name == args.Index {
				found = true
				break