return nil, err
	}
	if cap(dst.KVS) < len(elems.Elements) {
		dst.KVS = make(jstream.KVS, 0, len(elems.Elements))
	}
	for _, elem := range elems.Elements {
		v, err := sql.IterToValue(elem.Iter)
		if err != nil {
			v, err = elem.Iter.Interface()
			if err != nil {
				panic(err)
			}
		}
		dst.KVS = append(dst.KVS, jstream.KV{
			Key:   elem.Name,
			Value: v,
		})
	}
	return dst, nil
}

	var buf bytes.Buffer
	e := json.NewEncoder(&buf)
	d := jstream.NewDecoder(r, 0).ObjectAsKVS().MaxDepth(10)
	sset := set.NewStringSet()
	for mv := range d.Stream() {
		if mv.ValueType == jstream.Object {
			// This is a JSON object type (that preserves key order)
			kvs, ok := mv.Value.(jstream.KVS)
			if ok {
				for _, kv := range kvs {
					if sset.Contains(kv.Key) {

package jstream

import (
	"fmt"
	"strconv"
)

// Predefined errors
var (
	ErrSyntax        = DecoderError{msg: "invalid character"}
	ErrUnexpectedEOF = DecoderError{msg: "unexpected end of JSON input"}
	ErrMaxDepth      = DecoderError{msg: "maximum recursion depth exceeded"}
)

type errPos [2]int // line number, byte offset where error occurred

// DecoderError contains a detailed decoding error.
type DecoderError struct {

package jstream

import (
	"unicode/utf8"
)

type scratch struct {
	data []byte
	fill int
}

// reset scratch buffer
func (s *scratch) reset() { s.fill = 0 }

// bytes returns the written contents of scratch buffer
func (s *scratch) bytes() []byte { return s.data[0:s.fill] }

// grow scratch buffer
func (s *scratch) grow() {
	ndata := make([]byte, cap(s.data)*2)
	copy(ndata, s.data)
	s.data = ndata
}

package jstream

import (
	"io"
	"sync/atomic"
)

const (
	chunk    = 4095 // ~4k
	maxUint  = ^uint(0)
	maxInt   = int64(maxUint >> 1)
	nullByte = byte(0)
)

type scanner struct {
	pos       int64 // position in reader
	ipos      int64 // internal buffer position
	ifill     int64 // internal buffer fill
	end       int64
	buf       [chunk + 1]byte // internal buffer (with a lookback size of 1)

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package sql

import (
	"encoding/json"
	"errors"
	"fmt"
	"math"
	"strings"

	"github.com/minio/minio/internal/s3select/jstream"
	"github.com/minio/simdjson-go"
)

var (
	errInvalidASTNode    = errors.New("invalid AST Node")
	errExpectedBool      = errors.New("expected bool")

package jstream

import (
	"bufio"
	"bytes"
	"fmt"
	"io"
	"sync/atomic"
	"testing"
)

var (
	smallInput  = make([]byte, 1024*12)       // 12K
	mediumInput = make([]byte, 1024*1024*12)  // 12MB
	largeInput  = make([]byte, 1024*1024*128) // 128MB
)

func TestScanner(t *testing.T) {
	t.Skip("Unstable test")
	data := []byte("abcdefghijklmnopqrstuvwxyz0123456789")

	var i int
	r := bytes.NewReader(data)

// values within the array are emitted to the stream, then the array
// containing those values is emitted.
func (d *Decoder) Recursive() *Decoder {
	d.emitRecursive = true
	return d
}

// Stream begins decoding from the underlying reader and returns a
// streaming MetaValue channel for JSON values at the configured emitDepth.
func (d *Decoder) Stream() chan *MetaValue {
	go d.decode()
	return d.metaCh
}

package jstream

import (
	"bytes"
	"testing"
)

func mkReader(s string) *bytes.Reader { return bytes.NewReader([]byte(s)) }

func TestDecoderSimple(t *testing.T) {
	var (
		counter int
		mv      *MetaValue
		body    = `[{"bio":"bada bing bada boom","id":1,"name":"Charles","falseVal":false}]`
	)

	decoder := NewDecoder(mkReader(body), 1)

	for mv = range decoder.Stream() {
		counter++

    }
  }

  /**
   * Returns a {@link Stream} containing the elements of the first stream, followed by the elements
   * of the second stream, and so on.
   *
   * <p>This is equivalent to {@code Stream.of(streams).flatMap(stream -> stream)}, but the returned
   * stream may perform better.
   *
   * @see Stream#concat(Stream, Stream)
   */