JetBrains IntelliJ IDEA Blog

If you’re an IntelliJ IDEA plugin developer, you’re surely going to enjoy IntelliJ IDEA PSI Viewer (Tools -> View PSI Structure), which displays internal structure of various files, as they’re interpreted by IntelliJ IDEA. If you’re implementing a new language support, or trying to add some cool new features to what’s already supported — this viewer is what you’re gonna need a lot.

As you see, PSI Viewer is made up of of tree parts:

• An editor with file content
• PSI structure view with parent-child tree of its elements
• Area that displays references of element selected in PSI structure view.

Note that references marked as red resolve to null.

Available since build 92.35

There’s a lot of useful actions in IntelliJ IDEA that don’t have shortcuts for many different reasons: they’re not used too often or there’s simply no more convenient key combinations left.

For example, I often want to get access to VCS actions like Compare with latest repository version or Revert current file or even submit a single file with a quick NPE fix without opening a menu or going to Changes view.

So how can I call any of these actions with a single shortcut? That’s really easy: I just need to define my own Quick List and map it to a shortcut (Control-X in my case). After I’ve done that, every time I press Control-X I will get a pop-up like this:

Quick List in action

Now I can press 5 to quickly commit the current file or 2 to revert all my changes. OK, now let’s see how to create a Quick List and assign it a shortcut.

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