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IntelliJ IDEA – the IDE for Professional Development in Java and Kotlin

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IntelliJ IDEA PSI Viewer

Konstantin Bulenkov
Konstantin Bulenkov

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

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