ceph/src/boost/libs/leaf/test/ctx_remote_handle_all_test.cpp

   1 // Copyright 2018-2022 Emil Dotchevski and Reverge Studios, Inc.
   2
   3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifdef BOOST_LEAF_TEST_SINGLE_HEADER
   7 #   include "leaf.hpp"
   8 #else
   9 #   include <boost/leaf/context.hpp>
  10 #   include <boost/leaf/handle_errors.hpp>
  11 #   include <boost/leaf/result.hpp>
  12 #endif
  13
  14 #include "lightweight_test.hpp"
  15 #include <iostream>
  16
  17 namespace leaf = boost::leaf;
  18
  19 template <int>
  20 struct info
  21 {
  22     int value;
  23 };
  24
  25 template <class Ctx>
  26 leaf::result<int> f( Ctx & ctx )
  27 {
  28     auto active_context = activate_context(ctx);
  29     return leaf::new_error( info<1>{1} );
  30 }
  31
  32 int main()
  33 {
  34     auto handlers = std::make_tuple(
  35         []( info<1> x )
  36         {
  37             BOOST_TEST(x.value==1);
  38             return 1;
  39         },
  40         []( leaf::verbose_diagnostic_info const & info )
  41         {
  42             std::cout << info;
  43             return 2;
  44         } );
  45
  46     auto ctx = leaf::make_context(handlers);
  47
  48     {
  49         leaf::result<int> r1 = f(ctx);
  50         BOOST_TEST(!r1);
  51
  52         int r2 = ctx.handle_error<int>(
  53             r1.error(),
  54             std::move(handlers));
  55         BOOST_TEST_EQ(r2, 1);
  56     }
  57
  58     return boost::report_errors();
  59 }