The Rave Programming Language

Rave is a statically typed, compiled, procedural, general-purpose programming language.

Example of "Hello, world!"

Reduced version

import <std/io>
void main => std::println("Hello, world!");

Expanded version

import <std/io>

void main {
    std::println("Hello, world!");
}

Advantages

• Fast compilation
• Cross-platform features (for example, working with threads)
• Support for many platforms as target
• Using LLVM for great optimizations

For maximum performance, use the -Ofast or -O3 --noChecks. Also, don't forget to compile standard library with these flags using --recompileStd -Ofast.

Dependencies

• llvm-16 You can also use LLVM from 11 to 15.
• clang or gcc
• C++ compiler (with support of C++17 and higher)
• Make
• MinGW (if you need cross-compilation or you are using Windows)

Building/Running

To install dependencies, you can try running install.sh (Arch Linux/Void Linux/Ubuntu/Debian) or install.bat (only Windows 64-bit using choco)

If the installer does not work well on your system, you can try to install all the dependencies yourself.

After install write make in the Rave directory.

You can compile, for example, "Hello world!" example using ./rave examples/hello_world.rave -o hello_world in directory with Rave. To run this example after compiling, try ./examples/hello_world.

Cross-compilation programs from Linux for Windows

You just need to set the compiler "i686-w64-mingw32-gcc-win32" in options.json, and add "-t i686-win32" to your build command.

Specifications

The specifications is in specifications directory - link.

Troubleshooting errors

Segmentation fault during compile-time

Often caused by incorrect syntax or misuse of builtin instructions. We are continuously working to minimize these occurrences.

SSE/AVX as not a recognized features

If you encounter warnings about unrecognized features, disable them in options.json (set sse and avx to 0) or use command-line options: -SSE 0, -AVX 0.

Division by zero

The compiler defines any division by zero as undefined behavior in order to optimize the work with mathematics. Always check the numbers if you are not sure before making a division or calling a mathematical function from standard library.

Useful links

Bindings

Discord

Web-site