// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "lib/fidl/cpp/string.h"

#include <string.h>

#include "lib/fidl/cpp/encoder.h"

namespace fidl {

void StringPtr::Encode(Encoder* encoder, size_t offset) {
  if (is_null()) {
    fidl_string_t* string = encoder->GetPtr<fidl_string_t>(offset);
    string->size = 0u;
    string->data = reinterpret_cast<char*>(FIDL_ALLOC_ABSENT);
  } else {
    EncodeString(encoder, str_, offset);
  }
}

void StringPtr::Decode(Decoder* decoder, StringPtr* value, size_t offset) {
  fidl_string_t* string = decoder->GetPtr<fidl_string_t>(offset);
  if (string->data) {
    value->reset(std::string(string->data, string->size));
  } else {
    *value = StringPtr();
  }
}

}  // namespace fidl