fix: add stability configuration file to the core maps-compose projec…

…t. The currently configured types are all the immutable data types from com.google.android.gms.maps.model that are currently used in android-maps-compose:maps-compose. These types will now be considered @stable by the compiler. Making immutable data types @stable can be a more effective measure than relying on strong skipping, as stable types can use structural equality, whereas strong skipping merely relies on referential equality, as of today. (#517)

This commit also makes compose compiler report generation available via command-line options (-PcomposeCompilerMetrics=true, -PcomposeCompilerReports=true)

Fixes #152

maps-compose/build.gradle

@@ -31,6 +31,27 @@ android {
         jvmTarget = '1.8'
         freeCompilerArgs += '-Xexplicit-api=strict'
         freeCompilerArgs += '-Xopt-in=kotlin.RequiresOptIn'
+
+        freeCompilerArgs += [
+                "-P",
+                "plugin:androidx.compose.compiler.plugins.kotlin:stabilityConfigurationPath=" +
+                        layout.projectDirectory.file('compose_compiler.conf').asFile.absolutePath
+        ]
+
+        if (findProperty("composeCompilerReports") == "true") {
+            freeCompilerArgs += [
+                    "-P",
+                    "plugin:androidx.compose.compiler.plugins.kotlin:reportsDestination=" +
+                            project.buildDir.absolutePath + "/compose_compiler"
+            ]
+        }
+        if (findProperty("composeCompilerMetrics") == "true") {
+            freeCompilerArgs += [
+                    "-P",
+                    "plugin:androidx.compose.compiler.plugins.kotlin:metricsDestination=" +
+                            project.buildDir.absolutePath + "/compose_compiler"
+            ]
+        }
     }
 }
 

maps-compose/compose_compiler.conf

@@ -0,0 +1,7 @@
+com.google.android.gms.maps.model.BitmapDescriptor
+com.google.android.gms.maps.model.Cap
+com.google.android.gms.maps.model.LatLng
+com.google.android.gms.maps.model.LatLngBounds
+com.google.android.gms.maps.model.MapStyleOptions
+com.google.android.gms.maps.model.PatternItem
+com.google.android.gms.maps.model.PinConfig