Function TestSession

python/pyarrow/src/arrow/python/gdb.cc:74–502

}  // namespace

void TestSession() {
  // We define local variables for all types for which we want to test
  // pretty-printing.
  // Then, at the end of this function, we trap to the debugger, so that
  // test instrumentation can print values from this frame by interacting
  // with the debugger.
  // The test instrumentation is in pyarrow/tests/test_gdb.py

#ifdef __clang__
  _Pragma("clang diagnostic push");
  _Pragma("clang diagnostic ignored \"-Wunused-variable\"");
#elif defined(__GNUC__)
  _Pragma("GCC diagnostic push");
  _Pragma("GCC diagnostic ignored \"-Wunused-variable\"");
#endif

  arrow::DummyFunction();

  // Status & Result
  auto ok_status = Status::OK();
  auto error_status = Status::IOError("This is an error");
  auto error_detail_status =
      error_status.WithDetail(std::make_shared<CustomStatusDetail>());
  auto ok_result = Result<int>(42);
  auto error_result = Result<int>(error_status);
  auto error_detail_result = Result<int>(error_detail_status);

  // String views
  std::string_view string_view_abc{"abc"};
  std::string special_chars = std::string("foo\"bar") + '\x00' + "\r\n\t\x1f";
  std::string_view string_view_special_chars(special_chars);

  // Buffers
  Buffer buffer_null{nullptr, 0};
  Buffer buffer_abc{string_view_abc};
  Buffer buffer_special_chars{string_view_special_chars};
  char mutable_array[3] = {'a', 'b', 'c'};
  MutableBuffer buffer_mutable{reinterpret_cast<uint8_t*>(mutable_array), 3};
  auto heap_buffer = std::make_shared<Buffer>(string_view_abc);
  auto heap_buffer_mutable = *AllocateBuffer(buffer_abc.size());
  memcpy(heap_buffer_mutable->mutable_data(), buffer_abc.data(), buffer_abc.size());

  // KeyValueMetadata
  auto empty_metadata = key_value_metadata({}, {});
  auto metadata = key_value_metadata(
      {"key_text", "key_binary"}, {"some value", std::string("z") + '\x00' + "\x1f\xff"});

  // Decimals
  Decimal128 decimal128_zero{};
  Decimal128 decimal128_pos{"98765432109876543210987654321098765432"};
  Decimal128 decimal128_neg{"-98765432109876543210987654321098765432"};
  BasicDecimal128 basic_decimal128_zero{};
  BasicDecimal128 basic_decimal128_pos{decimal128_pos.native_endian_array()};
  BasicDecimal128 basic_decimal128_neg{decimal128_neg.native_endian_array()};
  Decimal256 decimal256_zero{};
  Decimal256 decimal256_pos{
      "9876543210987654321098765432109876543210987654321098765432109876543210987654"};
  Decimal256 decimal256_neg{