Merge "Make all SdkMemberTypes support transitive member deps"
diff --git a/android/paths.go b/android/paths.go
index b934687..5d458cb 100644
--- a/android/paths.go
+++ b/android/paths.go
@@ -24,6 +24,7 @@
 	"strings"
 
 	"github.com/google/blueprint"
+	"github.com/google/blueprint/bootstrap"
 	"github.com/google/blueprint/pathtools"
 )
 
@@ -449,6 +450,12 @@
 		return outputFiles, nil
 	} else if tag != "" {
 		return nil, fmt.Errorf("path dependency %q is not an output file producing module", path)
+	} else if goBinary, ok := module.(bootstrap.GoBinaryTool); ok {
+		if rel, err := filepath.Rel(PathForOutput(ctx).String(), goBinary.InstallPath()); err == nil {
+			return Paths{PathForOutput(ctx, rel).WithoutRel()}, nil
+		} else {
+			return nil, fmt.Errorf("cannot find output path for %q: %w", goBinary.InstallPath(), err)
+		}
 	} else if srcProducer, ok := module.(SourceFileProducer); ok {
 		return srcProducer.Srcs(), nil
 	} else {
diff --git a/apex/prebuilt.go b/apex/prebuilt.go
index 7830f95..8996352 100644
--- a/apex/prebuilt.go
+++ b/apex/prebuilt.go
@@ -110,6 +110,13 @@
 	}
 }
 
+// Implements android.DepInInSameApex
+func (p *prebuiltCommon) DepIsInSameApex(ctx android.BaseModuleContext, dep android.Module) bool {
+	tag := ctx.OtherModuleDependencyTag(dep)
+	_, ok := tag.(exportedDependencyTag)
+	return ok
+}
+
 // apexInfoMutator marks any modules for which this apex exports a file as requiring an apex
 // specific variant and checks that they are supported.
 //
@@ -142,34 +149,43 @@
 
 	// Collect the list of dependencies.
 	var dependencies []android.ApexModule
-	mctx.VisitDirectDeps(func(m android.Module) {
-		tag := mctx.OtherModuleDependencyTag(m)
+	mctx.WalkDeps(func(child, parent android.Module) bool {
+		// If the child is not in the same apex as the parent then exit immediately and do not visit
+		// any of the child's dependencies.
+		if !android.IsDepInSameApex(mctx, parent, child) {
+			return false
+		}
+
+		tag := mctx.OtherModuleDependencyTag(child)
+		depName := mctx.OtherModuleName(child)
 		if exportedTag, ok := tag.(exportedDependencyTag); ok {
 			propertyName := exportedTag.name
-			depName := mctx.OtherModuleName(m)
 
 			// It is an error if the other module is not a prebuilt.
-			if _, ok := m.(android.PrebuiltInterface); !ok {
+			if !android.IsModulePrebuilt(child) {
 				mctx.PropertyErrorf(propertyName, "%q is not a prebuilt module", depName)
-				return
+				return false
 			}
 
 			// It is an error if the other module is not an ApexModule.
-			if _, ok := m.(android.ApexModule); !ok {
+			if _, ok := child.(android.ApexModule); !ok {
 				mctx.PropertyErrorf(propertyName, "%q is not usable within an apex", depName)
-				return
+				return false
 			}
-
-			// Strip off the prebuilt_ prefix if present before storing content to ensure consistent
-			// behavior whether there is a corresponding source module present or not.
-			depName = android.RemoveOptionalPrebuiltPrefix(depName)
-
-			// Remember that this module was added as a direct dependency.
-			contents[depName] = contents[depName].Add(true)
-
-			// Add the module to the list of dependencies that need to have an APEX variant.
-			dependencies = append(dependencies, m.(android.ApexModule))
 		}
+
+		// Strip off the prebuilt_ prefix if present before storing content to ensure consistent
+		// behavior whether there is a corresponding source module present or not.
+		depName = android.RemoveOptionalPrebuiltPrefix(depName)
+
+		// Remember if this module was added as a direct dependency.
+		direct := parent == mctx.Module()
+		contents[depName] = contents[depName].Add(direct)
+
+		// Add the module to the list of dependencies that need to have an APEX variant.
+		dependencies = append(dependencies, child.(android.ApexModule))
+
+		return true
 	})
 
 	// Create contents for the prebuilt_apex and store it away for later use.
diff --git a/etc/prebuilt_etc.go b/etc/prebuilt_etc.go
index de9dc45..4dd383d 100644
--- a/etc/prebuilt_etc.go
+++ b/etc/prebuilt_etc.go
@@ -55,6 +55,8 @@
 	ctx.RegisterModuleType("prebuilt_firmware", PrebuiltFirmwareFactory)
 	ctx.RegisterModuleType("prebuilt_dsp", PrebuiltDSPFactory)
 	ctx.RegisterModuleType("prebuilt_rfsa", PrebuiltRFSAFactory)
+
+	ctx.RegisterModuleType("prebuilt_defaults", defaultsFactory)
 }
 
 var PrepareForTestWithPrebuiltEtc = android.FixtureRegisterWithContext(RegisterPrebuiltEtcBuildComponents)
@@ -124,6 +126,7 @@
 
 type PrebuiltEtc struct {
 	android.ModuleBase
+	android.DefaultableModuleBase
 
 	properties       prebuiltEtcProperties
 	subdirProperties prebuiltSubdirProperties
@@ -139,6 +142,11 @@
 	additionalDependencies *android.Paths
 }
 
+type Defaults struct {
+	android.ModuleBase
+	android.DefaultsModuleBase
+}
+
 func (p *PrebuiltEtc) inRamdisk() bool {
 	return p.ModuleBase.InRamdisk() || p.ModuleBase.InstallInRamdisk()
 }
@@ -378,6 +386,25 @@
 	InitPrebuiltEtcModule(module, "etc")
 	// This module is device-only
 	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibFirst)
+	android.InitDefaultableModule(module)
+	return module
+}
+
+func defaultsFactory() android.Module {
+	return DefaultsFactory()
+}
+
+func DefaultsFactory(props ...interface{}) android.Module {
+	module := &Defaults{}
+
+	module.AddProperties(props...)
+	module.AddProperties(
+		&prebuiltEtcProperties{},
+		&prebuiltSubdirProperties{},
+	)
+
+	android.InitDefaultsModule(module)
+
 	return module
 }
 
diff --git a/java/java.go b/java/java.go
index cfbe4b0..d74bf68 100644
--- a/java/java.go
+++ b/java/java.go
@@ -1298,9 +1298,10 @@
 		if ai.ForPrebuiltApex {
 			if deapexerModule == nil {
 				// This should never happen as a variant for a prebuilt_apex is only created if the
-				// deapxer module has been configured to export the dex implementation jar for this module.
+				// deapexer module has been configured to export the dex implementation jar for this module.
 				ctx.ModuleErrorf("internal error: module %q does not depend on a `deapexer` module for prebuilt_apex %q",
 					j.Name(), ai.ApexVariationName)
+				return
 			}
 
 			// Get the path of the dex implementation jar from the `deapexer` module.
diff --git a/python/python.go b/python/python.go
index 4444a70..0f5b788 100644
--- a/python/python.go
+++ b/python/python.go
@@ -444,11 +444,10 @@
 		var sharedLibs []string
 		// if embedded launcher is enabled, we need to collect the shared library depenendencies of the
 		// launcher
-		ctx.VisitDirectDeps(func(dep android.Module) {
-			if ctx.OtherModuleDependencyTag(dep) == launcherSharedLibTag {
-				sharedLibs = append(sharedLibs, ctx.OtherModuleName(dep))
-			}
-		})
+		for _, dep := range ctx.GetDirectDepsWithTag(launcherSharedLibTag) {
+			sharedLibs = append(sharedLibs, ctx.OtherModuleName(dep))
+		}
+
 		p.installer.setAndroidMkSharedLibs(sharedLibs)
 
 		// Install the par file from installSource