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PSI Demo 
Reference: Navigating the PSI in IntelliJ SDK Docs
Quickstart
PSI Demo project demonstrates working with the PSI Navigation by implementing AnAction that through the message dialog, informs about:
- an element at the caret,
- containing method,
- containing class,
- local variables.
Actions
| ID | Implementation | Base Action Class |
|---|---|---|
PsiNavigationDemo |
PsiNavigationDemoAction | AnAction |
Reference: Action System in IntelliJ SDK Docs