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- /*=============================================================================
- Copyright (c) 2005-2007 Dan Marsden
- Copyright (c) 2005-2007 Joel de Guzman
- Copyright (c) 2015 John Fletcher
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- ==============================================================================*/
- #include <stdexcept>
- #include <string>
- #include <boost/phoenix/core.hpp>
- #include <boost/phoenix/operator.hpp>
- #include <boost/phoenix/statement.hpp>
- #include <boost/phoenix/scope/local_variable.hpp>
- #include <boost/phoenix/bind/bind_member_function.hpp>
- #include <boost/detail/lightweight_test.hpp>
- struct base_exception : std::exception
- {
- explicit
- base_exception(char const *msg)
- : _sliced(true), _what(msg)
- {}
- base_exception(base_exception const &other)
- : _sliced(true), _what(other._what)
- {
- }
- char const *what() const BOOST_NOEXCEPT_OR_NOTHROW
- {
- if (_sliced) { return "sliced ..."; }
- return _what;
- }
- bool _sliced;
- char const *_what;
- };
- struct extended_exception : base_exception
- {
- explicit
- extended_exception(char const *msg)
- : base_exception(msg)
- {
- // mark as not sliced
- _sliced = false;
- }
- extended_exception(extended_exception const &other)
- : base_exception(other)
- {
- // mark as not sliced
- _sliced = false;
- }
- };
- int main()
- {
- using boost::phoenix::throw_;
- using boost::phoenix::try_;
- using boost::phoenix::ref;
- using boost::phoenix::local_names::_e;
- using boost::phoenix::bind;
- using std::exception;
- using std::string;
- using std::runtime_error;
- namespace phx = boost::phoenix;
- {
- try
- {
- throw_(runtime_error("error"))();
- BOOST_ERROR("exception should have been thrown");
- }
- catch(runtime_error& err)
- {
- BOOST_TEST(err.what() == string("error"));
- }
- }
- {
- try
- {
- try
- {
- throw runtime_error("error");
- }
- catch(exception&)
- {
- throw_()();
- BOOST_ERROR("exception should have been rethrown");
- }
- }
- catch(exception& err)
- {
- BOOST_TEST(err.what() == string("error"));
- }
- }
- {
- bool caught_exception = false;
- try_
- [ throw_(runtime_error("error")) ]
- .catch_<exception>(_e) // captured but unused
- [
- ref(caught_exception) = true
- ]();
- BOOST_TEST(caught_exception);
- }
- {
- bool caught_exception = false;
- string what;
- try_
- [ throw_(runtime_error("error")) ]
- .catch_<exception>(_e)
- [
- ref(caught_exception) = true
- // ambiguous with std::ref
- , phx::ref(what) = phx::bind(&exception::what, _e)
- ]();
- BOOST_TEST(caught_exception);
- BOOST_TEST(what == string("error"));
- }
- {
- bool caught_exception = false;
- string what;
- try_
- [ throw_(extended_exception("error")) ]
- .catch_<base_exception>(_e) // A thrown object should not be copied due to slicing.
- [
- ref(caught_exception) = true
- // ambiguous with std::ref
- , phx::ref(what) = phx::bind(&exception::what, _e)
- ]();
- BOOST_TEST(caught_exception);
- BOOST_TEST(what == string("error"));
- }
- {
- bool caught_exception = false;
- try_
- [ throw_(runtime_error("error")) ]
- .catch_all
- [ ref(caught_exception) = true ]();
- BOOST_TEST(caught_exception);
- }
- {
- bool caught_correct_exception = false;
- string what;
- try_
- [ throw_(runtime_error("error")) ]
- .catch_<string>()
- [ ref(caught_correct_exception) = false ]
- .catch_<exception>(_e)
- [
- ref(caught_correct_exception) = true
- // ambiguous with std::ref
- , phx::ref(what) = phx::bind(&exception::what, _e)
- ]();
- BOOST_TEST(caught_correct_exception);
- BOOST_TEST(what == string("error"));
- }
- {
- bool caught_correct_exception = false;
- try_
- [ throw_(runtime_error("error")) ]
- .catch_<string>()
- [ ref(caught_correct_exception) = false ]
- .catch_all
- [ ref(caught_correct_exception) = true]();
- BOOST_TEST(caught_correct_exception);
- }
- return boost::report_errors();
- }
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