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feat(hilt): Add limited dynamic feature module support for tests #5193

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feat(hilt): Add limited dynamic feature module support for tests #5193

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5 changes: 3 additions & 2 deletions hilt-compiler/main/java/dagger/hilt/processor/internal/optionvalues/GradleProjectType.java
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Expand Up @@ -17,8 +17,9 @@
package dagger.hilt.processor.internal.optionvalues;

/**
* Valid Gradle project type values. Note that we exclude 'com.android.feature' as Hilt doesn't
* support it for now.
* Valid Gradle project type values. Note that 'com.android.dynamic-feature' (formerly
* 'com.android.feature') is supported in a limited capacity -- dynamic feature modules are
* treated as libraries and can only contribute test-specific graphs, not the main app graph.
*/
public enum GradleProjectType {
/** Project type is not set, e.g. Hilt Gradle Plugin not applied. */
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4 changes: 4 additions & 0 deletions ...r/hilt/android/plugin/main/src/main/kotlin/dagger/hilt/android/plugin/HiltGradlePlugin.kt
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Expand Up @@ -25,6 +25,7 @@ import com.android.build.api.instrumentation.InstrumentationScope
import com.android.build.api.variant.AndroidComponentsExtension
import com.android.build.api.variant.ApplicationAndroidComponentsExtension
import com.android.build.api.variant.Component
import com.android.build.api.variant.DynamicFeatureAndroidComponentsExtension
import com.android.build.api.variant.LibraryAndroidComponentsExtension
import com.android.build.api.variant.ScopedArtifacts
import com.android.build.api.variant.TestAndroidComponentsExtension
Expand Down Expand Up @@ -397,6 +398,9 @@ class HiltGradlePlugin @Inject constructor(private val providers: ProviderFactor
when (androidExtension) {
is ApplicationAndroidComponentsExtension -> GradleProjectType.APP
is LibraryAndroidComponentsExtension -> GradleProjectType.LIBRARY
// Dynamic feature modules are treated as libraries since they cannot have a
// @HiltAndroidApp and cannot contribute to the main app's component tree.
is DynamicFeatureAndroidComponentsExtension -> GradleProjectType.LIBRARY
is TestAndroidComponentsExtension -> GradleProjectType.TEST
else -> error("Hilt plugin does not know how to configure '$androidExtension'")
}
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4 changes: 4 additions & 0 deletions ...gger/hilt/android/plugin/main/src/main/kotlin/dagger/hilt/android/plugin/util/Variants.kt
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Expand Up @@ -19,6 +19,7 @@ package dagger.hilt.android.plugin.util
import com.android.build.api.variant.AndroidComponentsExtension
import com.android.build.api.variant.ApplicationAndroidComponentsExtension
import com.android.build.api.variant.Component
import com.android.build.api.variant.DynamicFeatureAndroidComponentsExtension
import com.android.build.api.variant.HasAndroidTest
import com.android.build.api.variant.HasUnitTest
import com.android.build.api.variant.LibraryAndroidComponentsExtension
Expand All @@ -39,6 +40,9 @@ internal fun AndroidComponentsExtension<*, *, *>.onRootVariants(
// For a library project, only the androidTest and unitTest variant are configured since
// Hilt components are not generated in a library.
is LibraryAndroidComponentsExtension -> onTestVariants(block)
// Dynamic feature modules behave like libraries for Hilt purposes. They cannot contribute
// bindings to the main app graph, but they can create test-specific graphs.
is DynamicFeatureAndroidComponentsExtension -> onTestVariants(block)
is TestAndroidComponentsExtension -> onVariants { block(it, null) }
else -> error("Hilt plugin does not know how to configure '$this'")
}
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