3 files changed, 45 insertions, 0 deletions
diff --git a/rust/binary.go b/rust/binary.go
index c2d97f3ab..ca07d07c1 100644
--- a/rust/binary.go
+++ b/rust/binary.go
@@ -164,3 +164,7 @@ func (binary *binaryDecorator) stdLinkage(ctx *depsContext) RustLinkage {
 	}
 	return binary.baseCompiler.stdLinkage(ctx)
 }
+
+func (binary *binaryDecorator) isDependencyRoot() bool {
+	return true
+}
diff --git a/rust/compiler.go b/rust/compiler.go
index ee88a273f..bcea6cccc 100644
--- a/rust/compiler.go
+++ b/rust/compiler.go
@@ -236,6 +236,10 @@ func (compiler *baseCompiler) compile(ctx ModuleContext, flags Flags, deps PathD
 	panic(fmt.Errorf("baseCrater doesn't know how to crate things!"))
 }
 
+func (compiler *baseCompiler) isDependencyRoot() bool {
+	return false
+}
+
 func (compiler *baseCompiler) compilerDeps(ctx DepsContext, deps Deps) Deps {
 	deps.Rlibs = append(deps.Rlibs, compiler.Properties.Rlibs...)
 	deps.Dylibs = append(deps.Dylibs, compiler.Properties.Dylibs...)
diff --git a/rust/rust.go b/rust/rust.go
index 105384676..1fa97af96 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -106,6 +106,42 @@ type Module struct {
 	hideApexVariantFromMake bool
 }
 
+func (mod *Module) Header() bool {
+	//TODO: If Rust libraries provide header variants, this needs to be updated.
+	return false
+}
+
+func (mod *Module) SetPreventInstall() {
+	mod.Properties.PreventInstall = true
+}
+
+// Returns true if the module is "vendor" variant. Usually these modules are installed in /vendor
+func (mod *Module) InVendor() bool {
+	return mod.Properties.ImageVariationPrefix == cc.VendorVariationPrefix
+}
+
+func (mod *Module) SetHideFromMake() {
+	mod.Properties.HideFromMake = true
+}
+
+func (mod *Module) SanitizePropDefined() bool {
+	return false
+}
+
+func (mod *Module) IsDependencyRoot() bool {
+	if mod.compiler != nil {
+		return mod.compiler.isDependencyRoot()
+	}
+	panic("IsDependencyRoot called on a non-compiler Rust module")
+}
+
+func (mod *Module) IsPrebuilt() bool {
+	if _, ok := mod.compiler.(*prebuiltLibraryDecorator); ok {
+		return true
+	}
+	return false
+}
+
 func (mod *Module) OutputFiles(tag string) (android.Paths, error) {
 	switch tag {
 	case "":
@@ -281,6 +317,7 @@ type compiler interface {
 	SetDisabled()
 
 	stdLinkage(ctx *depsContext) RustLinkage
+	isDependencyRoot() bool
 }
 
 type exportedFlagsProducer interface {