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⚗️ switch off exceptions

pull/2898/head
Niels Lohmann 2021-08-01 13:34:55 +02:00
parent e7260f07f5
commit 5a1bc76f34
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2 changed files with 75 additions and 0 deletions
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9
test/CMakeLists.txt
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@ -90,6 +90,15 @@ foreach(file ${files})
endif()
endforeach()
# disable exceptions for test-disabled_exceptions
target_compile_definitions(test-disabled_exceptions PUBLIC JSON_NOEXCEPTION)
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang" OR CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
target_compile_options(test-disabled_exceptions PUBLIC -fno-exceptions)
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
target_compile_options(test-disabled_exceptions PUBLIC /EH)
target_compile_definitions(test-disabled_exceptions PUBLIC _HAS_EXCEPTIONS=0)
endif()
add_executable(json_unit EXCLUDE_FROM_ALL $<TARGET_OBJECTS:doctest_main> ${files})
target_compile_definitions(json_unit PRIVATE DOCTEST_CONFIG_SUPER_FAST_ASSERTS)
target_compile_options(json_unit PRIVATE

66
test/src/unit-disabled_exceptions.cpp 100644
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@ -0,0 +1,66 @@
/*
__ _____ _____ _____
__| | __| | | | JSON for Modern C++ (test suite)
| | |__ | | | | | | version 3.9.1
|_____|_____|_____|_|___| https://github.com/nlohmann/json
Licensed under the MIT License <http://opensource.org/licenses/MIT>.
SPDX-License-Identifier: MIT
Copyright (c) 2013-2019 Niels Lohmann <http://nlohmann.me>.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include "doctest_compatibility.h"
#include <nlohmann/json.hpp>
using json = nlohmann::json;
/////////////////////////////////////////////////////////////////////
// for #2824
/////////////////////////////////////////////////////////////////////
class sax_no_exception : public nlohmann::detail::json_sax_dom_parser<json>
{
public:
explicit sax_no_exception(json& j) : nlohmann::detail::json_sax_dom_parser<json>(j, false) {}
static bool parse_error(std::size_t /*position*/, const std::string& /*last_token*/, const json::exception& ex)
{
error_string = new std::string(ex.what()); // NOLINT(cppcoreguidelines-owning-memory)
return false;
}
static std::string* error_string;
};
std::string* sax_no_exception::error_string = nullptr;
TEST_CASE("Tests with disabled exceptions")
{
SECTION("issue #2824 - encoding of json::exception::what()")
{
json j;
sax_no_exception sax(j);
CHECK (!json::sax_parse("xyz", &sax));
CHECK(*sax_no_exception::error_string == "[json.exception.parse_error.101] parse error at line 1, column 1: syntax error while parsing value - invalid literal; last read: 'x'");
delete sax_no_exception::error_string; // NOLINT(cppcoreguidelines-owning-memory)
}
}