typediag is a program that produces a type diagram of a go language package.
A type diagram is a graph that shows which types are used by which functions in the package. It can be used to understand the relationships between types in an unfamiliar API.
Here's a sample result of running typediag on itself.
Needs the graphviz package to be installed on your machine. For example, on Ubuntu machines you can install it with:
sudo apt-get install graphvizInstallation instructions below assume go 1.11.
git install github.com/filmil/typediag/...typediag --path=/some/directory/containing/go/code --output=$HOME/out.png