1 files changed, 87 insertions, 0 deletions
diff --git a/vendor/github.com/goccy/go-json/internal/decoder/ptr.go b/vendor/github.com/goccy/go-json/internal/decoder/ptr.go
new file mode 100644
index 000000000..2c83b9c44
--- /dev/null
+++ b/vendor/github.com/goccy/go-json/internal/decoder/ptr.go
@@ -0,0 +1,87 @@
+package decoder
+
+import (
+	"unsafe"
+
+	"github.com/goccy/go-json/internal/runtime"
+)
+
+type ptrDecoder struct {
+	dec        Decoder
+	typ        *runtime.Type
+	structName string
+	fieldName  string
+}
+
+func newPtrDecoder(dec Decoder, typ *runtime.Type, structName, fieldName string) *ptrDecoder {
+	return &ptrDecoder{
+		dec:        dec,
+		typ:        typ,
+		structName: structName,
+		fieldName:  fieldName,
+	}
+}
+
+func (d *ptrDecoder) contentDecoder() Decoder {
+	dec, ok := d.dec.(*ptrDecoder)
+	if !ok {
+		return d.dec
+	}
+	return dec.contentDecoder()
+}
+
+//nolint:golint
+//go:linkname unsafe_New reflect.unsafe_New
+func unsafe_New(*runtime.Type) unsafe.Pointer
+
+func (d *ptrDecoder) DecodeStream(s *Stream, depth int64, p unsafe.Pointer) error {
+	if s.skipWhiteSpace() == nul {
+		s.read()
+	}
+	if s.char() == 'n' {
+		if err := nullBytes(s); err != nil {
+			return err
+		}
+		*(*unsafe.Pointer)(p) = nil
+		return nil
+	}
+	var newptr unsafe.Pointer
+	if *(*unsafe.Pointer)(p) == nil {
+		newptr = unsafe_New(d.typ)
+		*(*unsafe.Pointer)(p) = newptr
+	} else {
+		newptr = *(*unsafe.Pointer)(p)
+	}
+	if err := d.dec.DecodeStream(s, depth, newptr); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (d *ptrDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.Pointer) (int64, error) {
+	buf := ctx.Buf
+	cursor = skipWhiteSpace(buf, cursor)
+	if buf[cursor] == 'n' {
+		if err := validateNull(buf, cursor); err != nil {
+			return 0, err
+		}
+		if p != nil {
+			*(*unsafe.Pointer)(p) = nil
+		}
+		cursor += 4
+		return cursor, nil
+	}
+	var newptr unsafe.Pointer
+	if *(*unsafe.Pointer)(p) == nil {
+		newptr = unsafe_New(d.typ)
+		*(*unsafe.Pointer)(p) = newptr
+	} else {
+		newptr = *(*unsafe.Pointer)(p)
+	}
+	c, err := d.dec.Decode(ctx, cursor, depth, newptr)
+	if err != nil {
+		return 0, err
+	}
+	cursor = c
+	return cursor, nil
+}