Awesome
Felix
An advanced, statically typed, high performance scripting language with native C++ embedding.
Features
Autobuilder
This file:
// hello.flx
println$ "Hello World";
can be run directly:
flx hello.flx
It just works. No makefiles. No compiler switches.
Automatic caching and dependency checking for Felix and C++.
Uses a flx_pkgconfig database consisting of a directory
of *.fpc
files to specify and find libraries and header
files based on in language abstract keys.
Hyperlight Performance
The aim is to run faster than C.
Underneath Felix generates highly optimised machine binaries which outperform most interpreters, bytecode compilers, virtual machines, and sometimes compiled languages including C and C++.
Felix is an aggressive inliner which performs whole program analysis and high level optimisations such as parallel assignment, self-tail call elimination.
Felix generates optimised C++ which is then compiled and optimised again by your system C++ compiler.
Compiler | Ack | Takfp |
---|---|---|
Felix/clang | 3.71 | 6.23 |
Clang/C++ | 3.95 | 6.29 |
Felix/gcc | 2.34 | 6.60 |
Gcc/C++ | 2.25 | 6.25 |
Ocaml | 2.93 | 8.41 |
C and C++ embedding
Felix is a C++ code generator specifically designed so that all your favourite C and C++ libraries can be embedded with little or no glue logic:
// required header
header vector_h = '#include <vector>';
// C++11 for smart pointers
header memory_h = '#include <memory>'
requires package "cplusplus_11"
;
// types
type vector[T] = "::std::shared_ptr<::std::vector<?1>>"
requires vector_h, memory_h
;
type viterator[T] = "::std::vector<?1>::iterator"
requires vector_h
;
// constructor
ctor[T] vector[T] : unit = "::std::make_shared<::std::vector<?1>>()";
// operations
proc push_back[T] : vector[T] * T = "$1->push_back($2);";
proc push_back[T] (v: vector[T]) (elt:T) => push_back(v,elt);
fun stl_begin[T] : vector[T] -> viterator[T] = "$1->begin()";
fun deref[T] : viterator[T] -> T = "*$1";
// example use
var v = vector[int]();
v.push_back 42;
println$ *v.stl_begin;
Getting Started
Prerequisites
- Python 3
- Ocaml 4.06.1 (only for source build)
- C++ compiler: g++, clang++, or msvc
Extras (can be installed later)
- SDL2 for graphics
- GNU GMP, GNU GSL
Build from Source
Linux
git clone https://github.com/felix-lang/felix.git
cd felix
. buildscript/linuxsetup.sh
make
sudo make install # optional!
OSX
git clone https://github.com/felix-lang/felix.git
cd felix
. buildscript/macosxsetup.sh
make
sudo make install # optional!
Building with Nix
On platforms supporting Nix, you can set up a build and runtime environment by running:
git clone https://github.com/felix-lang/felix.git
cd felix
nix-shell shell.nix
. buildscript/linuxsetup.sh
make
This will do an in place "install" of the Felix binaries. Note that this should work on OS X with Nix, but needs to be tested.
Windows
Follow the instructions on the Wiki.
Packages
Arch Linux
Use provided PKGBUILD to make an installable package. It is also available in the AUR repository
cd src/misc
makepkg
sudo pacman -U felix-VERSION.pkg.tar.xz
Tarballs
http://github.com/felix-lang/felix/releases
Build Status
Appveyor, Windows build: Travis, Linux build:
Links
Title | URL |
---|---|
Documentation Master | http://felix-documentation-master.readthedocs.io/en/latest/ |
Felix Tutorial | http://felix-tutorial.readthedocs.io/en/latest/ |
Installation and Tools Guide | http://felix-tools.readthedocs.io/en/latest/ |
Felix Language Reference Manual | http://felix.readthedocs.io/en/latest/ |
Felix Library Packages | http://felix-library-packages.readthedocs.io/en/latest/ |
Articles on Modern Computing | http://modern-computing.readthedocs.io/en/latest/ |
Felix Home Page | http://felix-lang.github.io/felix |
Felix Wiki | https://github.com/felix-lang/felix/wiki |
Git Repository | https://github.com/felix-lang/felix |
Binary Download | http://github.com/felix-lang/felix/releases |
Mailing List
mailto:felixpl@googlegroups.com
Licence
Felix is Free For Any Use (FFAU)/Public Domain.