Rename API surface provided to mainline modules

This API surface is provided by platform and mainline modules to other
mainline modules. Rename it to module-lib API surface to align it with
the terminology in go/android-api-types

Test: go test ./bp2build
Test: go test ./cc
Change-Id: Ieb9f3214e66366fc2ceb6f47e2d6623acb537827

4 files changed, 26 insertions, 24 deletions

diff --git a/android/api_domain.go b/android/api_domain.go
index bdd4e6fa5..587ceaefa 100644
--- a/android/api_domain.go
+++ b/android/api_domain.go
@@ -32,17 +32,18 @@ type ApiSurface int
 
 // TODO(b/246656800): Reconcile with android.SdkKind
 const (
-	PublicApi ApiSurface = iota
-	SystemApi
-	VendorApi
+	// API surface provided by platform and mainline modules to other mainline modules
+	ModuleLibApi ApiSurface = iota
+	PublicApi               // Aka NDK
+	VendorApi               // Aka LLNDK
 )
 
 func (a ApiSurface) String() string {
 	switch a {
+	case ModuleLibApi:
+		return "module-libapi"
 	case PublicApi:
 		return "publicapi"
-	case SystemApi:
-		return "systemapi"
 	case VendorApi:
 		return "vendorapi"
 	default:
diff --git a/bp2build/cc_library_conversion_test.go b/bp2build/cc_library_conversion_test.go
index 244ca9c2c..c11a50d9d 100644
--- a/bp2build/cc_library_conversion_test.go
+++ b/bp2build/cc_library_conversion_test.go
@@ -2825,7 +2825,7 @@ func TestCcApiContributionsWithHdrs(t *testing.T) {
 	expectedBazelTargets := []string{
 		MakeBazelTarget(
 			"cc_api_library_headers",
-			"libfoo.systemapi.headers",
+			"libfoo.module-libapi.headers",
 			AttrNameToString{
 				"export_includes": `["dir1"]`,
 			}),
@@ -2842,18 +2842,18 @@ func TestCcApiContributionsWithHdrs(t *testing.T) {
 				"api":          `"libfoo.map.txt"`,
 				"library_name": `"libfoo"`,
 				"api_surfaces": `[
-        "systemapi",
+        "module-libapi",
         "vendorapi",
     ]`,
 				"hdrs": `[
-        ":libfoo.systemapi.headers",
+        ":libfoo.module-libapi.headers",
         ":libfoo.vendorapi.headers",
     ]`,
 			}),
 	}
 	RunApiBp2BuildTestCase(t, cc.RegisterLibraryBuildComponents, Bp2buildTestCase{
 		Blueprint:            bp,
-		Description:          "cc API contributions to systemapi and vendorapi",
+		Description:          "cc API contributions to module-libapi and vendorapi",
 		ExpectedBazelTargets: expectedBazelTargets,
 	})
 }
@@ -2872,8 +2872,8 @@ func TestCcApiSurfaceCombinations(t *testing.T) {
 				stubs: {symbol_file: "a.map.txt"},
 			}`,
 			expectedApi:         `"a.map.txt"`,
-			expectedApiSurfaces: `["systemapi"]`,
-			description:         "Library that contributes to systemapi",
+			expectedApiSurfaces: `["module-libapi"]`,
+			description:         "Library that contributes to module-libapi",
 		},
 		{
 			bp: `
@@ -2894,10 +2894,10 @@ func TestCcApiSurfaceCombinations(t *testing.T) {
 			}`,
 			expectedApi: `"a.map.txt"`,
 			expectedApiSurfaces: `[
-        "systemapi",
+        "module-libapi",
         "vendorapi",
     ]`,
-			description: "Library that contributes to systemapi and vendorapi",
+			description: "Library that contributes to module-libapi and vendorapi",
 		},
 	}
 	for _, testCase := range testCases {
diff --git a/cc/library.go b/cc/library.go
index 1291f5cd3..94984cb87 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -475,10 +475,10 @@ func createStubsBazelTargetIfNeeded(ctx android.TopDownMutatorContext, m *Module
 func apiContributionBp2Build(ctx android.TopDownMutatorContext, module *Module) {
 	apiSurfaces := make([]string, 0)
 	apiHeaders := make([]string, 0)
-	// systemapi (non-null `stubs` property)
+	// module-libapi for apexes (non-null `stubs` property)
 	if module.HasStubsVariants() {
-		apiSurfaces = append(apiSurfaces, android.SystemApi.String())
-		apiIncludes := getSystemApiIncludes(ctx, module)
+		apiSurfaces = append(apiSurfaces, android.ModuleLibApi.String())
+		apiIncludes := getModuleLibApiIncludes(ctx, module)
 		if !apiIncludes.isEmpty() {
 			createApiHeaderTarget(ctx, apiIncludes)
 			apiHeaders = append(apiHeaders, apiIncludes.name)
@@ -494,8 +494,8 @@ func apiContributionBp2Build(ctx android.TopDownMutatorContext, module *Module)
 		}
 	}
 	// create a target only if this module contributes to an api surface
-	// TODO: Currently this does not distinguish systemapi-only headers and vendrorapi-only headers
-	// TODO: Update so that systemapi-only headers do not get exported to vendorapi (and vice-versa)
+	// TODO: Currently this does not distinguish modulelibapi-only headers and vendrorapi-only headers
+	// TODO: Update so that modulelibapi-only headers do not get exported to vendorapi (and vice-versa)
 	if len(apiSurfaces) > 0 {
 		props := bazel.BazelTargetModuleProperties{
 			Rule_class:        "cc_api_contribution",
@@ -527,8 +527,8 @@ func apiLabelAttribute(ctx android.TopDownMutatorContext, module *Module) bazel.
 	linker := module.linker.(*libraryDecorator)
 	if llndkApi := linker.Properties.Llndk.Symbol_file; llndkApi != nil {
 		apiFile = llndkApi
-	} else if systemApi := linker.Properties.Stubs.Symbol_file; systemApi != nil {
-		apiFile = systemApi
+	} else if moduleLibApi := linker.Properties.Stubs.Symbol_file; moduleLibApi != nil {
+		apiFile = moduleLibApi
 	} else {
 		ctx.ModuleErrorf("API surface library does not have any API file")
 	}
@@ -566,7 +566,8 @@ func (includes *apiIncludes) addDep(name string) {
 	includes.attrs.Deps.Append(lla)
 }
 
-func getSystemApiIncludes(ctx android.TopDownMutatorContext, c *Module) apiIncludes {
+// includes provided to the module-lib API surface. This API surface is used by apexes.
+func getModuleLibApiIncludes(ctx android.TopDownMutatorContext, c *Module) apiIncludes {
 	flagProps := c.library.(*libraryDecorator).flagExporter.Properties
 	linkProps := c.library.(*libraryDecorator).baseLinker.Properties
 	includes := android.FirstUniqueStrings(flagProps.Export_include_dirs)
@@ -579,7 +580,7 @@ func getSystemApiIncludes(ctx android.TopDownMutatorContext, c *Module) apiInclu
 	}
 
 	return apiIncludes{
-		name: c.Name() + ".systemapi.headers",
+		name: c.Name() + ".module-libapi.headers",
 		attrs: bazelCcApiLibraryHeadersAttributes{
 			bazelCcLibraryHeadersAttributes: attrs,
 		},
diff --git a/cc/library_headers.go b/cc/library_headers.go
index 4d38068fd..c77d2539f 100644
--- a/cc/library_headers.go
+++ b/cc/library_headers.go
@@ -169,7 +169,7 @@ func apiLibraryHeadersBp2Build(ctx android.TopDownMutatorContext, module *Module
 	// For API export, create a top-level arch-agnostic target and list the arch-specific targets as its deps
 
 	// arch-agnostic includes
-	apiIncludes := getSystemApiIncludes(ctx, module)
+	apiIncludes := getModuleLibApiIncludes(ctx, module)
 	// arch and os specific includes
 	archApiIncludes, androidOsIncludes := archOsSpecificApiIncludes(ctx, module)
 	for _, arch := range allArches { // sorted iteration
@@ -186,7 +186,7 @@ func apiLibraryHeadersBp2Build(ctx android.TopDownMutatorContext, module *Module
 	}
 
 	if !apiIncludes.isEmpty() {
-		// override the name from <mod>.systemapi.headers --> <mod>.contribution
+		// override the name from <mod>.module-libapi.headers --> <mod>.contribution
 		apiIncludes.name = android.ApiContributionTargetName(module.Name())
 		createApiHeaderTarget(ctx, apiIncludes)
 	}