Merge pull request #1381 from android/ben/strongskip

Enable strong skipping

Author: bentrengrove

build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/AndroidCompose.kt

@@ -57,6 +57,7 @@ internal fun Project.configureAndroidCompose(
         kotlinOptions {
             freeCompilerArgs += buildComposeMetricsParameters() 
             freeCompilerArgs += stabilityConfiguration()
+            freeCompilerArgs += strongSkippingConfiguration()
         }
     }
 }
@@ -84,10 +85,16 @@ private fun Project.buildComposeMetricsParameters(): List<String> {
             "plugin:androidx.compose.compiler.plugins.kotlin:reportsDestination=" + reportsFolder.absolutePath
         )
     }
+
     return metricParameters.toList()
 }
 
 private fun Project.stabilityConfiguration() = listOf(
     "-P",
     "plugin:androidx.compose.compiler.plugins.kotlin:stabilityConfigurationPath=${project.rootDir.absolutePath}/compose_compiler_config.conf",
 )
+
+private fun Project.strongSkippingConfiguration() = listOf(
+    "-P",
+    "plugin:androidx.compose.compiler.plugins.kotlin:experimentalStrongSkipping=true",
+)

compose_compiler_config.conf

@@ -2,5 +2,10 @@
 // It allows us to define classes that our not part of our codebase without wrapping them in a stable class.
 // For more information, check https://developer.android.com/jetpack/compose/performance/stability/fix#configuration-file
 
+// We always use immutable classes for our data model, to avoid running the Compose compiler
+// in the module we declare it to be stable here.
+com.google.samples.apps.nowinandroid.core.model.data.*
+
+// Java standard library classes
 java.time.ZoneId
 java.time.ZoneOffset