IntelliJ IDEA PSI Viewer
November 19th, 2009 by Konstantin BulenkovIf 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
March 25th, 2010 at 1:06 pm
Absolutely the most useful thing ever
What would also be nice is a “Getting Started With Psi” doc explaining how to best navigate files using Psi (and later how to construct/save etc).
Plugins are quite easy in IDEA, considering this is my first foray into JAVA (Flex dev here). However because you’re likely to see more and more non-Java devs wanting to augment the app, I think helping us a little with the common patterns IDEA uses would go a long way to building community support.
Anyway, fantastic feature, great IDE.
May 20th, 2010 at 7:50 am
Hi,
Also, it would be nice to have a document, which maps how to use PSI viewer to write a script in search for Structural search would be most useful.
Regards,
Raja Nagendra Kumar
March 7th, 2011 at 3:08 pm
What is PSI stands for anyway? -Thanks!
August 29th, 2011 at 4:10 pm
While it loads in PhpStorm and is visible in plugins, I don’t get any new action (while I get them in IDEA). Would it be possible to get it?
January 1st, 2013 at 2:55 am
Should be stated that “Note that PSI viewer command is only available when there is at least one plugin module in project.”