Split DepIsInSameApex into outgoing and incoming

Prepare for calling DepIsInSameApex from the apex transition mutator
by splitting all the implementations in two, one that is called on the
outgoing module and only takes the depTag, and one that is called on the
incoming module and only takes the depTag.

apexBundle.depVisitor was passing the child into android.IsDepInSameApex
for both the parent and child paramters.  The parent field was only
used to find the type on which to call DepIsInSameApex, so this
effectively used the child's implementation of DepIsInSameApex.  That
used to be necessary when the parent and child were of different
module types, as the parent module type may not have been aware
of the rules for the child module type, but is no longer necessary
with split outgoing and incoming DepIsInSameApex.

Bug: 372543712
Test: all soong tests pass
Change-Id: If7c81ec3f7b1ea69d77e9ad7694e238820194e59
diff --git a/java/aar.go b/java/aar.go
index b668766..d9a8c0e 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -1603,8 +1603,8 @@
 var _ android.ApexModule = (*AARImport)(nil)
 
 // Implements android.ApexModule
-func (a *AARImport) DepIsInSameApex(ctx android.BaseModuleContext, dep android.Module) bool {
-	return a.depIsInSameApex(ctx, dep)
+func (a *AARImport) OutgoingDepIsInSameApex(tag blueprint.DependencyTag) bool {
+	return a.depIsInSameApex(tag)
 }
 
 // Implements android.ApexModule
diff --git a/java/app.go b/java/app.go
index 276e960..b8c85fb 100644
--- a/java/app.go
+++ b/java/app.go
@@ -1209,7 +1209,10 @@
 
 func (a *AndroidApp) WalkPayloadDeps(ctx android.BaseModuleContext, do android.PayloadDepsCallback) {
 	ctx.WalkDeps(func(child, parent android.Module) bool {
-		isExternal := !a.DepIsInSameApex(ctx, child)
+		// TODO(ccross): Should this use android.DepIsInSameApex?  Right now it is applying the android app
+		// heuristics to every transitive dependency, when it should probably be using the heuristics of the
+		// immediate parent.
+		isExternal := !a.OutgoingDepIsInSameApex(ctx.OtherModuleDependencyTag(child))
 		if am, ok := child.(android.ApexModule); ok {
 			if !do(ctx, parent, am, isExternal) {
 				return false
@@ -1286,11 +1289,11 @@
 	return a.overridableAppProperties.Certificate.GetOrDefault(ctx, "")
 }
 
-func (a *AndroidApp) DepIsInSameApex(ctx android.BaseModuleContext, dep android.Module) bool {
-	if IsJniDepTag(ctx.OtherModuleDependencyTag(dep)) {
+func (a *AndroidApp) OutgoingDepIsInSameApex(tag blueprint.DependencyTag) bool {
+	if IsJniDepTag(tag) {
 		return true
 	}
-	return a.Library.DepIsInSameApex(ctx, dep)
+	return a.Library.OutgoingDepIsInSameApex(tag)
 }
 
 func (a *AndroidApp) Privileged() bool {
diff --git a/java/app_import.go b/java/app_import.go
index 8951c7d..f593c02 100644
--- a/java/app_import.go
+++ b/java/app_import.go
@@ -538,7 +538,7 @@
 	return Bool(a.properties.Privileged)
 }
 
-func (a *AndroidAppImport) DepIsInSameApex(_ android.BaseModuleContext, _ android.Module) bool {
+func (a *AndroidAppImport) OutgoingDepIsInSameApex(tag blueprint.DependencyTag) bool {
 	// android_app_import might have extra dependencies via uses_libs property.
 	// Don't track the dependency as we don't automatically add those libraries
 	// to the classpath. It should be explicitly added to java_libs property of APEX
diff --git a/java/base.go b/java/base.go
index b579a5d..215285f 100644
--- a/java/base.go
+++ b/java/base.go
@@ -365,13 +365,13 @@
 	e.initSdkLibraryComponent(module)
 }
 
-// Module/Import's DepIsInSameApex(...) delegates to this method.
+// Module/Import's OutgoingDepIsInSameApex(...) delegates to this method.
 //
-// This cannot implement DepIsInSameApex(...) directly as that leads to ambiguity with
+// This cannot implement OutgoingDepIsInSameApex(...) directly as that leads to ambiguity with
 // the one provided by ApexModuleBase.
-func (e *embeddableInModuleAndImport) depIsInSameApex(ctx android.BaseModuleContext, dep android.Module) bool {
+func (e *embeddableInModuleAndImport) depIsInSameApex(tag blueprint.DependencyTag) bool {
 	// dependencies other than the static linkage are all considered crossing APEX boundary
-	if staticLibTag == ctx.OtherModuleDependencyTag(dep) {
+	if tag == staticLibTag {
 		return true
 	}
 	return false
@@ -2214,8 +2214,8 @@
 }
 
 // Implements android.ApexModule
-func (j *Module) DepIsInSameApex(ctx android.BaseModuleContext, dep android.Module) bool {
-	return j.depIsInSameApex(ctx, dep)
+func (j *Module) OutgoingDepIsInSameApex(tag blueprint.DependencyTag) bool {
+	return j.depIsInSameApex(tag)
 }
 
 // Implements android.ApexModule
diff --git a/java/bootclasspath_fragment.go b/java/bootclasspath_fragment.go
index 375a1aa..d6777e5 100644
--- a/java/bootclasspath_fragment.go
+++ b/java/bootclasspath_fragment.go
@@ -393,11 +393,9 @@
 	return i.profileInstallPathInApex
 }
 
-func (b *BootclasspathFragmentModule) DepIsInSameApex(ctx android.BaseModuleContext, dep android.Module) bool {
-	tag := ctx.OtherModuleDependencyTag(dep)
-
+func (b *BootclasspathFragmentModule) OutgoingDepIsInSameApex(tag blueprint.DependencyTag) bool {
 	// If the module is a default module, do not check the tag
-	if _, ok := dep.(*Defaults); ok {
+	if tag == android.DefaultsDepTag {
 		return true
 	}
 	if IsBootclasspathFragmentContentDepTag(tag) {
@@ -414,7 +412,7 @@
 		return false
 
 	}
-	panic(fmt.Errorf("boot_image module %q should not have a dependency on %q via tag %s", b, dep, android.PrettyPrintTag(tag)))
+	panic(fmt.Errorf("boot_image module %q should not have a dependency tag %s", b, android.PrettyPrintTag(tag)))
 }
 
 func (b *BootclasspathFragmentModule) ShouldSupportSdkVersion(ctx android.BaseModuleContext, sdkVersion android.ApiLevel) error {
diff --git a/java/java.go b/java/java.go
index ee112c1..64bc959 100644
--- a/java/java.go
+++ b/java/java.go
@@ -2959,8 +2959,8 @@
 var _ android.ApexModule = (*Import)(nil)
 
 // Implements android.ApexModule
-func (j *Import) DepIsInSameApex(ctx android.BaseModuleContext, dep android.Module) bool {
-	return j.depIsInSameApex(ctx, dep)
+func (j *Import) OutgoingDepIsInSameApex(tag blueprint.DependencyTag) bool {
+	return j.depIsInSameApex(tag)
 }
 
 // Implements android.ApexModule
diff --git a/java/sdk_library.go b/java/sdk_library.go
index 7891776..991f847 100644
--- a/java/sdk_library.go
+++ b/java/sdk_library.go
@@ -1282,7 +1282,7 @@
 func CheckMinSdkVersion(ctx android.ModuleContext, module *Library) {
 	android.CheckMinSdkVersion(ctx, module.MinSdkVersion(ctx), func(c android.BaseModuleContext, do android.PayloadDepsCallback) {
 		ctx.WalkDeps(func(child android.Module, parent android.Module) bool {
-			isExternal := !module.depIsInSameApex(ctx, child)
+			isExternal := !android.IsDepInSameApex(ctx, module, child)
 			if am, ok := child.(android.ApexModule); ok {
 				if !do(ctx, parent, am, isExternal) {
 					return false
@@ -1636,15 +1636,14 @@
 }
 
 // Implements android.ApexModule
-func (module *SdkLibrary) DepIsInSameApex(mctx android.BaseModuleContext, dep android.Module) bool {
-	depTag := mctx.OtherModuleDependencyTag(dep)
+func (module *SdkLibrary) OutgoingDepIsInSameApex(depTag blueprint.DependencyTag) bool {
 	if depTag == xmlPermissionsFileTag {
 		return true
 	}
-	if dep.Name() == module.implLibraryModuleName() {
+	if depTag == implLibraryTag {
 		return true
 	}
-	return module.Library.DepIsInSameApex(mctx, dep)
+	return module.Library.OutgoingDepIsInSameApex(depTag)
 }
 
 // Implements android.ApexModule
@@ -2059,8 +2058,7 @@
 var _ android.ApexModule = (*SdkLibraryImport)(nil)
 
 // Implements android.ApexModule
-func (module *SdkLibraryImport) DepIsInSameApex(mctx android.BaseModuleContext, dep android.Module) bool {
-	depTag := mctx.OtherModuleDependencyTag(dep)
+func (module *SdkLibraryImport) OutgoingDepIsInSameApex(depTag blueprint.DependencyTag) bool {
 	if depTag == xmlPermissionsFileTag {
 		return true
 	}