"refactor(common): 重构序列化工具包，将serialize重命名为utils并添加bitset组件"

common/utils/sturc/binary.go

@@ -0,0 +1,52 @@
+package struc
+
+import (
+	"encoding/binary"
+	"io"
+	"reflect"
+)
+
+type byteWriter struct {
+	buf []byte
+	pos int
+}
+
+func (b byteWriter) Write(p []byte) (int, error) {
+	capacity := len(b.buf) - b.pos
+	if capacity < len(p) {
+		p = p[:capacity]
+	}
+	if len(p) > 0 {
+		copy(b.buf[b.pos:], p)
+		b.pos += len(p)
+	}
+	return len(p), nil
+}
+
+type binaryFallback reflect.Value
+
+func (b binaryFallback) String() string {
+	return b.String()
+}
+
+func (b binaryFallback) Sizeof(val reflect.Value, options *Options) int {
+	return binary.Size(val.Interface())
+}
+
+func (b binaryFallback) Pack(buf []byte, val reflect.Value, options *Options) (int, error) {
+	tmp := byteWriter{buf: buf}
+	var order binary.ByteOrder = binary.BigEndian
+	if options.Order != nil {
+		order = options.Order
+	}
+	err := binary.Write(tmp, order, val.Interface())
+	return tmp.pos, err
+}
+
+func (b binaryFallback) Unpack(r io.Reader, val reflect.Value, options *Options) error {
+	var order binary.ByteOrder = binary.BigEndian
+	if options.Order != nil {
+		order = options.Order
+	}
+	return binary.Read(r, order, val.Interface())
+}