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Move UDLs out of the global namespace (#3605)

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* Move UDLs into nlohmann::literals::json_literals namespace

* Add 'using namespace' to unit tests

* Add 'using namespace' to examples

* Add 'using namespace' to README

* Move UDL mkdocs pages out of basic_json/

* Update documentation

* Update docset index

* Add JSON_GlobalUDLs CMake option

* Add unit test

* Build examples without global UDLs

* Add CI target
This commit is contained in:
Florian Albrechtskirchinger
2022-07-31 17:38:52 +02:00
committed by GitHub
parent 8fd8b52907
commit 9aafcbe965
61 changed files with 377 additions and 94 deletions
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tests/src/unit-udl.cpp
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// __ _____ _____ _____
// __| | __| | | | JSON for Modern C++ (supporting code)
// | | |__ | | | | | | version 3.10.5
// |_____|_____|_____|_|___| https://github.com/nlohmann/json
//
// SPDX-FileCopyrightText: 2013-2022 Niels Lohmann <https://nlohmann.me>
// SPDX-License-Identifier: MIT
#include "doctest_compatibility.h"
#undef JSON_USE_GLOBAL_UDLS
#define JSON_USE_GLOBAL_UDLS 0
#include <nlohmann/json.hpp>
TEST_CASE("user-defined string literals")
{
auto j_expected = nlohmann::json::parse(R"({"foo": "bar", "baz": 42})");
auto ptr_expected = nlohmann::json::json_pointer("/foo/bar");
SECTION("using namespace nlohmann::literals::json_literals")
{
using namespace nlohmann::literals::json_literals; // NOLINT(google-build-using-namespace)
CHECK(R"({"foo": "bar", "baz": 42})"_json == j_expected);
CHECK("/foo/bar"_json_pointer == ptr_expected);
}
SECTION("using namespace nlohmann::json_literals")
{
using namespace nlohmann::json_literals; // NOLINT(google-build-using-namespace)
CHECK(R"({"foo": "bar", "baz": 42})"_json == j_expected);
CHECK("/foo/bar"_json_pointer == ptr_expected);
}
SECTION("using namespace nlohmann::literals")
{
using namespace nlohmann::literals; // NOLINT(google-build-using-namespace)
CHECK(R"({"foo": "bar", "baz": 42})"_json == j_expected);
CHECK("/foo/bar"_json_pointer == ptr_expected);
}
SECTION("using namespace nlohmann")
{
using namespace nlohmann; // NOLINT(google-build-using-namespace)
CHECK(R"({"foo": "bar", "baz": 42})"_json == j_expected);
CHECK("/foo/bar"_json_pointer == ptr_expected);
}
}