Does KSP effectively block other analysishandlerex...

# ksp

[Zac Sweers]

Does KSP effectively block other analysishandlerextension plugins from running in its KspTask?

> Task :lib.bookmarks:kspReleaseKotlin FAILED
e: java.lang.RuntimeException: Duplicate registration for EP 'org.jetbrains.kotlin.com.intellij.psi.treeChangeListener': first in FakeIdForTests, second in FakeIdForTests
        at org.jetbrains.kotlin.com.intellij.openapi.components.ComponentManager.createError(ComponentManager.java:167)
        at org.jetbrains.kotlin.com.intellij.openapi.extensions.impl.ExtensionsAreaImpl.checkThatPointNotDuplicated(ExtensionsAreaImpl.java:235)
        at org.jetbrains.kotlin.com.intellij.openapi.extensions.impl.ExtensionsAreaImpl.registerExtensionPoint(ExtensionsAreaImpl.java:240)
        at org.jetbrains.kotlin.com.intellij.openapi.extensions.impl.ExtensionsAreaImpl.doRegisterExtensionPoint(ExtensionsAreaImpl.java:210)
        at org.jetbrains.kotlin.com.intellij.openapi.extensions.impl.ExtensionsAreaImpl.doRegisterExtensionPoint(ExtensionsAreaImpl.java:189)
        at org.jetbrains.kotlin.com.intellij.openapi.extensions.impl.ExtensionsAreaImpl.doRegisterExtensionPoint(ExtensionsAreaImpl.java:183)
        at org.jetbrains.kotlin.com.intellij.openapi.extensions.impl.ExtensionsAreaImpl.registerExtensionPoint(ExtensionsAreaImpl.java:160)
        at dev.zacsweers.moshix.ir.compiler.proguardgen.ProguardRuleGenerationExtension.doAnalysis(ProguardRuleGenerationExtension.kt:59)

[Ting-Yuan Huang]

Kind of. The compiler only allows one (first) analysis handler to return non-null AnalysisResult. KSP use it to request early return, i.e., skip compiler backend in this task.

[Zac Sweers]

gotcha, thanks. I think this issue was separate https://github.com/detekt/detekt/commit/a0d36e2ca4f6ca38cac0f9cb418df989ccf4f063#diff-1abfa33e705e9d1a139e397920c[…]0d738291dd9bce517943290d0R24-R28