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10 lines
498 B
Markdown
10 lines
498 B
Markdown
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title: Program Structure Interface (PSI)
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---
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The Program Structure Interface, commonly referred to as just PSI, is the layer in the _IntelliJ Platform_ that is responsible for parsing files and creating the syntactic and semantic code model that powers so many of the platform's features.
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* [PSI Files](/basics/architectural_overview/psi_files.md)
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* [File View Providers](/basics/architectural_overview/file_view_providers.md)
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* [PSI Elements](/basics/architectural_overview/psi_elements.md)
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