SourceGraph is a tool for "statically analysing Haskell source code using graph-theoretic techniques". It can provide a helpful insight about the complexity and dependencies of your code, and make some valuable suggestions on how to improve it.
To generate a SourceGraph report for your project, right click the project root
and select Run SourceGraph. A folder called SourceGraph
is generated
inside your project, and the report is automatically shown in Eclipse.