migrate go version to 1.17 (#203)

* migrate go version to 1.17

* update contributing

1 files changed, 169 insertions, 0 deletions

diff --git a/vendor/github.com/goccy/go-json/internal/decoder/array.go b/vendor/github.com/goccy/go-json/internal/decoder/array.go
new file mode 100644
index 000000000..21f1fd585
--- /dev/null
+++ b/vendor/github.com/goccy/go-json/internal/decoder/array.go
@@ -0,0 +1,169 @@
+package decoder
+
+import (
+	"unsafe"
+
+	"github.com/goccy/go-json/internal/errors"
+	"github.com/goccy/go-json/internal/runtime"
+)
+
+type arrayDecoder struct {
+	elemType     *runtime.Type
+	size         uintptr
+	valueDecoder Decoder
+	alen         int
+	structName   string
+	fieldName    string
+	zeroValue    unsafe.Pointer
+}
+
+func newArrayDecoder(dec Decoder, elemType *runtime.Type, alen int, structName, fieldName string) *arrayDecoder {
+	zeroValue := *(*unsafe.Pointer)(unsafe_New(elemType))
+	return &arrayDecoder{
+		valueDecoder: dec,
+		elemType:     elemType,
+		size:         elemType.Size(),
+		alen:         alen,
+		structName:   structName,
+		fieldName:    fieldName,
+		zeroValue:    zeroValue,
+	}
+}
+
+func (d *arrayDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
+	depth++
+	if depth > maxDecodeNestingDepth {
+		return errors.ErrExceededMaxDepth(s.char(), s.cursor)
+	}
+
+	for {
+		switch s.char() {
+		case ' ', '\n', '\t', '\r':
+		case 'n':
+			if err := nullBytes(s); err != nil {
+				return err
+			}
+			return nil
+		case '[':
+			idx := 0
+			s.cursor++
+			if s.skipWhiteSpace() == ']' {
+				for idx < d.alen {
+					*(*unsafe.Pointer)(unsafe.Pointer(uintptr(p) + uintptr(idx)*d.size)) = d.zeroValue
+					idx++
+				}
+				s.cursor++
+				return nil
+			}
+			for {
+				if idx < d.alen {
+					if err := d.valueDecoder.DecodeStream(s, depth, unsafe.Pointer(uintptr(p)+uintptr(idx)*d.size)); err != nil {
+						return err
+					}
+				} else {
+					if err := s.skipValue(depth); err != nil {
+						return err
+					}
+				}
+				idx++
+				switch s.skipWhiteSpace() {
+				case ']':
+					for idx < d.alen {
+						*(*unsafe.Pointer)(unsafe.Pointer(uintptr(p) + uintptr(idx)*d.size)) = d.zeroValue
+						idx++
+					}
+					s.cursor++
+					return nil
+				case ',':
+					s.cursor++
+					continue
+				case nul:
+					if s.read() {
+						s.cursor++
+						continue
+					}
+					goto ERROR
+				default:
+					goto ERROR
+				}
+			}
+		case nul:
+			if s.read() {
+				continue
+			}
+			goto ERROR
+		default:
+			goto ERROR
+		}
+		s.cursor++
+	}
+ERROR:
+	return errors.ErrUnexpectedEndOfJSON("array", s.totalOffset())
+}
+
+func (d *arrayDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
+	buf := ctx.Buf
+	depth++
+	if depth > maxDecodeNestingDepth {
+		return 0, errors.ErrExceededMaxDepth(buf[cursor], cursor)
+	}
+
+	for {
+		switch buf[cursor] {
+		case ' ', '\n', '\t', '\r':
+			cursor++
+			continue
+		case 'n':
+			if err := validateNull(buf, cursor); err != nil {
+				return 0, err
+			}
+			cursor += 4
+			return cursor, nil
+		case '[':
+			idx := 0
+			cursor++
+			cursor = skipWhiteSpace(buf, cursor)
+			if buf[cursor] == ']' {
+				for idx < d.alen {
+					*(*unsafe.Pointer)(unsafe.Pointer(uintptr(p) + uintptr(idx)*d.size)) = d.zeroValue
+					idx++
+				}
+				cursor++
+				return cursor, nil
+			}
+			for {
+				if idx < d.alen {
+					c, err := d.valueDecoder.Decode(ctx, cursor, depth, unsafe.Pointer(uintptr(p)+uintptr(idx)*d.size))
+					if err != nil {
+						return 0, err
+					}
+					cursor = c
+				} else {
+					c, err := skipValue(buf, cursor, depth)
+					if err != nil {
+						return 0, err
+					}
+					cursor = c
+				}
+				idx++
+				cursor = skipWhiteSpace(buf, cursor)
+				switch buf[cursor] {
+				case ']':
+					for idx < d.alen {
+						*(*unsafe.Pointer)(unsafe.Pointer(uintptr(p) + uintptr(idx)*d.size)) = d.zeroValue
+						idx++
+					}
+					cursor++
+					return cursor, nil
+				case ',':
+					cursor++
+					continue
+				default:
+					return 0, errors.ErrInvalidCharacter(buf[cursor], "array", cursor)
+				}
+			}
+		default:
+			return 0, errors.ErrUnexpectedEndOfJSON("array", cursor)
+		}
+	}
+}