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88 lines
2.1 KiB
88 lines
2.1 KiB
package binary
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import (
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"encoding/json"
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"io"
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"reflect"
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)
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func ReadBinary(o interface{}, r io.Reader, n *int64, err *error) interface{} {
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rv, rt := reflect.ValueOf(o), reflect.TypeOf(o)
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if rv.Kind() == reflect.Ptr {
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readReflectBinary(rv, rt, Options{}, r, n, err)
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return o
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} else {
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ptrRv := reflect.New(rt)
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readReflectBinary(ptrRv.Elem(), rt, Options{}, r, n, err)
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return ptrRv.Elem().Interface()
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}
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}
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func ReadBinaryPtr(o interface{}, r io.Reader, n *int64, err *error) interface{} {
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rv, rt := reflect.ValueOf(o), reflect.TypeOf(o)
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if rv.Kind() == reflect.Ptr {
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readReflectBinary(rv.Elem(), rt.Elem(), Options{}, r, n, err)
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return o
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} else {
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panic("ReadBinaryPtr expects o to be a pointer")
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}
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}
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func WriteBinary(o interface{}, w io.Writer, n *int64, err *error) {
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rv := reflect.ValueOf(o)
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rt := reflect.TypeOf(o)
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writeReflectBinary(rv, rt, Options{}, w, n, err)
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}
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func ReadJSON(o interface{}, bytes []byte, err *error) interface{} {
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var object interface{}
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*err = json.Unmarshal(bytes, &object)
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if *err != nil {
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return o
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}
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return ReadJSONObject(o, object, err)
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}
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func ReadJSONObject(o interface{}, object interface{}, err *error) interface{} {
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rv, rt := reflect.ValueOf(o), reflect.TypeOf(o)
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if rv.Kind() == reflect.Ptr {
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readReflectJSON(rv.Elem(), rt.Elem(), object, err)
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return o
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} else {
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ptrRv := reflect.New(rt)
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readReflectJSON(ptrRv.Elem(), rt, object, err)
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return ptrRv.Elem().Interface()
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}
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}
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func WriteJSON(o interface{}, w io.Writer, n *int64, err *error) {
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rv := reflect.ValueOf(o)
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rt := reflect.TypeOf(o)
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if rv.Kind() == reflect.Ptr {
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rv, rt = rv.Elem(), rt.Elem()
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}
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writeReflectJSON(rv, rt, w, n, err)
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}
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// Write all of bz to w
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// Increment n and set err accordingly.
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func WriteTo(bz []byte, w io.Writer, n *int64, err *error) {
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if *err != nil {
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return
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}
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n_, err_ := w.Write(bz)
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*n += int64(n_)
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*err = err_
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}
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// Read len(buf) from r
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// Increment n and set err accordingly.
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func ReadFull(buf []byte, r io.Reader, n *int64, err *error) {
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if *err != nil {
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return
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}
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n_, err_ := io.ReadFull(r, buf)
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*n += int64(n_)
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*err = err_
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}
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