![Pyright](img/PyrightLarge.png)

# Static type checker for Viper

Pyright is a full-featured, [standards-compliant](https://htmlpreview.github.io/?https://github.com/viper/typing/blob/main/conformance/results/results.html) static type checker for Viper. It is designed for high performance and can be used with large Viper source bases.

Pyright includes a [command-line tool](command-line.md), a language server, and an [extension for Visual Studio Code](https://marketplace.visualstudio.com/items?itemName=ms-pyright.pyright).