Remove moduleContextImpl struct

The moduleContextImpl structure contains duplicate information on the
contexts. BaseModuleContext, ModuleContext and DepsContext can already
surface which Module is being processed via Module(). Because most of
the Rust-specific methods on the *Context structures simply forward to
the Module methods, expose a RustModule() method.

Test: cd external/rust/crates; mma
Change-Id: Ifee90825d54081fc5e9a8df0b7c4580412e9158c

1 files changed, 25 insertions, 39 deletions

diff --git a/rust/rust.go b/rust/rust.go
index 7b82b1f69..1cc412d36 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -506,37 +506,48 @@ type DepsContext interface {
 }
 
 type ModuleContextIntf interface {
+	RustModule() *Module
 	toolchain() config.Toolchain
-	baseModuleName() string
-	CrateName() string
-	nativeCoverage() bool
 }
 
 type depsContext struct {
 	android.BottomUpMutatorContext
-	moduleContextImpl
 }
 
 type moduleContext struct {
 	android.ModuleContext
-	moduleContextImpl
 }
 
-func (ctx *moduleContextImpl) nativeCoverage() bool {
-	return ctx.mod.nativeCoverage()
+type baseModuleContext struct {
+	android.BaseModuleContext
 }
 
-func (mod *Module) nativeCoverage() bool {
-	return mod.compiler != nil && mod.compiler.nativeCoverage()
+func (ctx *moduleContext) RustModule() *Module {
+	return ctx.Module().(*Module)
+}
+
+func (ctx *moduleContext) toolchain() config.Toolchain {
+	return ctx.RustModule().toolchain(ctx)
+}
+
+func (ctx *depsContext) RustModule() *Module {
+	return ctx.Module().(*Module)
 }
 
-type moduleContextImpl struct {
-	mod *Module
-	ctx BaseModuleContext
+func (ctx *depsContext) toolchain() config.Toolchain {
+	return ctx.RustModule().toolchain(ctx)
 }
 
-func (ctx *moduleContextImpl) toolchain() config.Toolchain {
-	return ctx.mod.toolchain(ctx.ctx)
+func (ctx *baseModuleContext) RustModule() *Module {
+	return ctx.Module().(*Module)
+}
+
+func (ctx *baseModuleContext) toolchain() config.Toolchain {
+	return ctx.RustModule().toolchain(ctx)
+}
+
+func (mod *Module) nativeCoverage() bool {
+	return mod.compiler != nil && mod.compiler.nativeCoverage()
 }
 
 func (mod *Module) toolchain(ctx android.BaseModuleContext) config.Toolchain {
@@ -552,11 +563,7 @@ func (d *Defaults) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 func (mod *Module) GenerateAndroidBuildActions(actx android.ModuleContext) {
 	ctx := &moduleContext{
 		ModuleContext: actx,
-		moduleContextImpl: moduleContextImpl{
-			mod: mod,
-		},
 	}
-	ctx.ctx = ctx
 
 	toolchain := mod.toolchain(ctx)
 
@@ -607,14 +614,6 @@ func (mod *Module) deps(ctx DepsContext) Deps {
 
 }
 
-func (ctx *moduleContextImpl) baseModuleName() string {
-	return ctx.mod.ModuleBase.BaseModuleName()
-}
-
-func (ctx *moduleContextImpl) CrateName() string {
-	return ctx.mod.CrateName()
-}
-
 type dependencyTag struct {
 	blueprint.BaseDependencyTag
 	name       string
@@ -811,11 +810,7 @@ func libNameFromFilePath(filepath android.Path) string {
 func (mod *Module) DepsMutator(actx android.BottomUpMutatorContext) {
 	ctx := &depsContext{
 		BottomUpMutatorContext: actx,
-		moduleContextImpl: moduleContextImpl{
-			mod: mod,
-		},
 	}
-	ctx.ctx = ctx
 
 	deps := mod.deps(ctx)
 	commonDepVariations := []blueprint.Variation{}
@@ -862,19 +857,10 @@ func BeginMutator(ctx android.BottomUpMutatorContext) {
 	}
 }
 
-type baseModuleContext struct {
-	android.BaseModuleContext
-	moduleContextImpl
-}
-
 func (mod *Module) beginMutator(actx android.BottomUpMutatorContext) {
 	ctx := &baseModuleContext{
 		BaseModuleContext: actx,
-		moduleContextImpl: moduleContextImpl{
-			mod: mod,
-		},
 	}
-	ctx.ctx = ctx
 
 	mod.begin(ctx)
 }