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91 lines
4.3 KiB
Markdown
91 lines
4.3 KiB
Markdown
## Sol 2.18
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[](https://gitter.im/chat-sol2/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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[](https://travis-ci.org/ThePhD/sol2)
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[](http://sol2.readthedocs.io/en/latest/?badge=latest)
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Sol is a C++ library binding to Lua. It currently supports all Lua versions 5.1+ (LuaJIT 2.x included). Sol aims to be easy to use and easy to add to a project.
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The library is header-only for easy integration with projects.
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## Documentation
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Find it [here](http://sol2.rtfd.io/). A run-through kind of tutorial is [here](http://sol2.readthedocs.io/en/latest/tutorial/all-the-things.html)! The API documentation goes over most cases (particularly, the "api/usertype" and "api/proxy" and "api/function" sections) that should still get you off your feet and going, and there's an examples directory [here](https://github.com/ThePhD/sol2/tree/develop/examples) as well.
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## Sneak Peek
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```cpp
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#include <sol.hpp>
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#include <cassert>
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int main() {
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sol::state lua;
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int x = 0;
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lua.set_function("beep", [&x]{ ++x; });
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lua.script("beep()");
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assert(x == 1);
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}
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```
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```cpp
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#include <sol.hpp>
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#include <cassert>
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struct vars {
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int boop = 0;
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};
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int main() {
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sol::state lua;
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lua.new_usertype<vars>("vars", "boop", &vars::boop);
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lua.script("beep = vars.new()\n"
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"beep.boop = 1");
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assert(lua.get<vars>("beep").boop == 1);
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}
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```
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More examples are given in the examples directory [here](https://github.com/ThePhD/sol2/tree/develop/examples).
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## Presentations
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"A Sun For the Moon - A Zero-Overhead Lua Abstraction using C++"
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ThePhD
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Lua Workshop 2016 - Mashape, San Francisco, CA
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[Deck](https://github.com/ThePhD/sol2/blob/develop/docs/presentations/ThePhD%20-%20No%20Overhead%20C%20Abstraction%20-%202016.10.14.pdf)
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## Creating a single header
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You can grab a single header out of the library [here](https://github.com/ThePhD/sol2/tree/develop/single/sol). For stable version, check the releases tab on github for a provided single header file for maximum ease of use. A script called `single.py` is provided in the repository if there's some bleeding edge change that hasn't been published on the releases page. You can run this script to create a single file version of the library so you can only include that part of it. Check `single.py --help` for more info.
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## Features
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- [Fastest in the land](http://sol2.readthedocs.io/en/latest/benchmarks.html) (see: sol bar in graph).
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- Supports retrieval and setting of multiple types including `std::string` and `std::map/unordered_map`.
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- Lambda, function, and member function bindings are supported.
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- Intermediate type for checking if a variable exists.
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- Simple API that completely abstracts away the C stack API, including `protected_function` with the ability to use an error-handling function.
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- `operator[]`-style manipulation of tables
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- C++ type representations in lua userdata as `usertype`s with guaranteed cleanup.
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- Customization points to allow your C++ objects to be pushed and retrieved from Lua as multiple consecutive objects, or anything else you desire!
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- Overloaded function calls: `my_function(1); my_function("Hello")` in the same lua script route to different function calls based on parameters
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- Support for tables, nested tables, table iteration with `table.for_each` / `begin()` and `end()` iterators.
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## Supported Compilers
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Sol makes use of C++11 **and** C++14 features. GCC 5.x.x and Clang 3.6.x (with `-std=c++1z` and appropriate standard library)
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or higher should be able to compile without problems. However, the officially supported and CI-tested compilers are:
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- GCC 5.x.x+
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- Clang 3.6.x+
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- Visual Studio 2015 Community (Visual C++ 14.0)+
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Please make sure you use the `-std=c++1y`, `-std=c++14`, `-std=c++1z`, `-std=c++17` or better standard flags
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(some of these flags are the defaults in later versions of GCC 6+ and better).
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Older compilers (GCC 4.9.x, Clang 3.4.x seem to be the lowest) can work with versions as late
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as [v2.17.5](https://github.com/ThePhD/sol2/releases/tag/v2.17.5), with the flag `-std=c++14` or `-std=c++1y`.
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## License
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Sol is distributed with an MIT License. You can see LICENSE.txt for more info.
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