From 5be13a047b35879e5ed5ddf91487e7664519b324 Mon Sep 17 00:00:00 2001
From: Ben Trengrove <bentrengrove@google.com>
Date: Tue, 5 Dec 2023 10:51:29 +1100
Subject: [PATCH] Enable strong skipping

---
 .../com/google/samples/apps/nowinandroid/AndroidCompose.kt | 7 +++++++
 compose_compiler_config.conf                               | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/AndroidCompose.kt b/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/AndroidCompose.kt
index 234313e1f..e38c5b300 100644
--- a/build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/AndroidCompose.kt
+++ b/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()
         }
     }
 }
@@ -84,6 +85,7 @@ private fun Project.buildComposeMetricsParameters(): List<String> {
             "plugin:androidx.compose.compiler.plugins.kotlin:reportsDestination=" + reportsFolder.absolutePath
         )
     }
+
     return metricParameters.toList()
 }
 
@@ -91,3 +93,8 @@ 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",
+)
diff --git a/compose_compiler_config.conf b/compose_compiler_config.conf
index 2341256f4..d47946206 100644
--- a/compose_compiler_config.conf
+++ b/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