Documentation: https://vlang.io/docs
Twitter: https://twitter.com/v_language
Discord (primary community): https://discord.gg/n7c74HM
Installing V: https://github.com/vlang/v#installing-v-from-source
- Simplicity: the language can be learned in less than an hour
- Fast compilation: ~100k loc/s right now, ~1.2 million loc/s once x64 generation is mature enough
- Easy to develop: V compiles itself in less than a second
- Performance: within 3% of C
- Safety: no null, no globals, no undefined behavior, immutability by default
- C to V translation
- Hot code reloading
- Powerful UI and graphics libraries
- Easy cross compilation
- REPL
- Built-in ORM
V 1.0 release is planned for December 2019. Right now V is in an alpha stage.
GitHub marks V's code as written in Go. It's actually written in V, GitHub doesn't support the language yet.
The compilation is temporarily slower for this release:
- Debug builds are used (use
./v -prod -o v compilerto get faster compilation). - vlib is recompiled with every program you build.
- The new formatter runs on every single token and slows the compiler down by ~20%. This will be taken care of.
git clone https://github.com/vlang/v
cd v
makeThat's it! Now you have a V executable at [path to V repo]/v. [path to V repo] can be anywhere.
You'll need Clang or GCC. If you are doing development, you most likely already have it installed.
On macOS run xcode-select --install if you don't have XCode or XCode tools.
On Windows follow these instructions: github.com/vlang/v/wiki/Installing-a-C-compiler-on-Windows
You can create a /usr/local/bin/v symlink so that V is globally available:
sudo make symlink
V is being constantly updated. To update V, simply run
v up
git clone https://github.com/vlang/v
cd v
docker build -t vlang .
docker run --rm -it vlang:latest
vMake sure V can compile itself:
v -o v compiler
$ v
V 0.1.x
Use Ctrl-D to exit
>>> println('hello world')
hello world
>>>
cd examples
v hello_world.v && ./hello_world # or simply
v run hello_world.v # this builds the program and runs it right away
v word_counter.v && ./word_counter cinderella.txt
v run news_fetcher.v
v run tetris/tetris.v
In order to build Tetris and anything else using the graphics module, you will need to install glfw and freetype.
v install glfw
If you plan to use the http package, you also need to install openssl on non-Windows systems.
macOS:
brew install glfw freetype openssl
Debian/Ubuntu:
sudo apt install libglfw3 libglfw3-dev libfreetype6-dev libssl-dev
Arch/Manjaro:
sudo pacman -S glfw-x11 freetype2
Fedora:
sudo dnf install glfw glfw-devel freetype-devel
glfw dependency will be removed soon.
Code structure:
https://github.com/vlang/v/blob/master/CONTRIBUTING.md
If you introduce a breaking change and rebuild V, you will no longer be able to use V to build itself. So it's a good idea to make a backup copy of a working compiler executable.