Creating a fake local variable in a method

IntelliJ Platform
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Hi, I’ve never made an idea plugin before, but I am comfortable programming with java and kotlin. I am trying to create an idea plugin to mimic the javac transforms happening in GitHub - Auties00/Reified: Reified in Java 11 and upwards · GitHub , but I figured a good place to start would be adding a fake local variable to a scope / method. I asked A.I. what the best method to use for this would be, and it suggested com.intellij.psi.augment.PsiAugmentProvider, but it seems like that only works for fields / methods. Any help would be appreciated :slight_smile:.

I am using IntelliJ IDEA 2025.3.3 currently, but planning to update to latest soon.

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Hi, PsiAugmentProvider doesn’t provide the ability to change PSI and add local variables. What kind of IDE functionality are you trying to provide? Maybe changing the PSI is not needed.