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Throw error while trying to set a dagger flag via annotationProcessor #5144

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Merged
copybara-service merged 1 commit into from
Mar 13, 2026
Merged

Throw error while trying to set a dagger flag via annotationProcessor #5144

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31 changes: 19 additions & 12 deletions ...r/hilt/android/plugin/main/src/main/kotlin/dagger/hilt/android/plugin/HiltGradlePlugin.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -402,18 +402,25 @@ class HiltGradlePlugin @Inject constructor(private val providers: ProviderFactor
}

androidExtension.onAllVariants { variant, _ ->
// Error if the user is trying to set the fastInit flag via build file.
if (
variant.javaCompilation
?.annotationProcessor
?.arguments
?.get()
?.containsKey("dagger.fastInit") ?: false
) {
error(
"[Hilt]: The flag 'dagger.fastInit' can only be set via command line. i.e. " +
"add '-Pdagger.fastInit=enabled' to your command line."
)
val processorArgs =
variant.javaCompilation?.annotationProcessor?.arguments?.get() ?: emptyMap()
// Error if the user is trying to set plugin controlled properties via build file.
processorArgs.keys.forEach { arg ->
when (arg) {
"dagger.hilt.fastInit" ->
error(
"[Hilt]: The flag 'dagger.hilt.fastInit' can only be set via command line. i.e. " +
"add '-Pdagger.hilt.fastInit=enabled' to your command line."
)
"dagger.hilt.android.internal.disableAndroidSuperclassValidation",
"dagger.hilt.android.internal.projectType",
"dagger.hilt.internal.useAggregatingRootProcessor",
"dagger.hilt.disableCrossCompilationRootValidation" ->
error(
"[Hilt]: The flag '$arg' cannot be set via annotation processor options because " +
"it is controlled by the Hilt plugin."
)
}
}
// Pass annotation processor flags via a CommandLineArgumentProvider so that plugin
// options defined in the extension are populated from the user's build file.
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