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indexing_and_psi_stubs.md: sample for gist

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Yann Cébron 2020-11-04 17:30:20 +01:00
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basics/indexing_and_psi_stubs.md
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@ -45,3 +45,6 @@ Sometimes, the following conditions hold:
A file-based index can be used in such cases, but file gists provide a way to perform data calculation lazily, caching on disk, and a more lightweight API.
Please see [`VirtualFileGist`](upsource:///platform/indexing-api/src/com/intellij/util/gist/VirtualFileGist.java) and [`PsiFileGist`](upsource:///platform/indexing-api/src/com/intellij/util/gist/PsiFileGist.java) documentation.
**Example:**
- [`ImageInfoIndex`](upsource:///images/src/org/intellij/images/index/ImageInfoIndex.java) calculating image dimensions/bit depth needed to be displayed in specific parts of UI.