How lint is building UAST?

[Станислав Максимов]

What mechanism lint is using to build UAST? Can I somehow use this mechanism to build UAST outside of lint? I have codebase with mixed java and kotlin code and I kinda want to build UAST to search what application parts are changed when building releases. 

[Matthew Gharrity]

UAST is built using APIs from the IntelliJ platform.

When running in the IDE (as an IntelliJ plugin, say) it's relatively easy because you can just call `toUElement()` on the relevant PSI.

On the command line, though, there's a lot of extra setup you have to do to get PSI in the first place. (See LintCoreApplicationEnvironment and LintCoreProjectEnvironment, for example.) It's not easy.

On Wed, Dec 4, 2019 at 9:19 AM Станислав Максимов <s.ma...@gmail.com> wrote:

What mechanism lint is using to build UAST? Can I somehow use this mechanism to build UAST outside of lint? I have codebase with mixed java and kotlin code and I kinda want to build UAST to search what application parts are changed when building releases. 

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[Matthew Gharrity]

Note, I recently rewrote some of this code, and now all the configuration happens in UastEnvironment.kt.

There is more documentation now, and the code is simpler because most of the work is delegated to the Kotlin compiler.