Merge "Use kapt stubs for kotlin header jar for javac" (40f8c757) · Commits · e / os / android_build_soong

java/base.go

+21 −9

Original line number	Diff line number	Diff line
		@@ -1108,13 +1108,23 @@ func (j *Module) compile(ctx android.ModuleContext, aaptSrcJar android.Path) {
		flags.kotlincClasspath = append(flags.kotlincClasspath, flags.bootClasspath...)
		flags.kotlincClasspath = append(flags.kotlincClasspath, flags.classpath...)

		if len(flags.processorPath) > 0 {
		useTurbineApt := len(flags.processorPath) > 0
		if useTurbineApt {
		// Use kapt for annotation processing
		kaptSrcJar := android.PathForModuleOut(ctx, "kapt", "kapt-sources.jar")
		kaptResJar := android.PathForModuleOut(ctx, "kapt", "kapt-res.jar")
		kotlinKapt(ctx, kaptSrcJar, kaptResJar, kotlinSrcFiles, kotlinCommonSrcFiles, srcJars, flags)
		srcJars = append(srcJars, kaptSrcJar)
		kotlinJars = append(kotlinJars, kaptResJar)
		kotlinTurbineAptHeaderJar := android.PathForModuleOut(ctx, "turbine-apt", "stubs-header.jar")
		kotlinTurbineAptSrcJar := android.PathForModuleOut(ctx, "turbine-apt", "anno-sources.jar")
		kotlinTurbineAptResJar := android.PathForModuleOut(ctx, "turbine-apt", "anno-res.jar")
		kotlinTurbineApt(ctx, kotlinTurbineAptHeaderJar, kotlinTurbineAptSrcJar, kotlinTurbineAptResJar,
		kotlinSrcFiles, kotlinCommonSrcFiles, srcJars, flags)
		srcJars = append(srcJars, kotlinTurbineAptSrcJar)
		kotlinJars = append(kotlinJars, kotlinTurbineAptResJar)
		// When annotation processors are enabled we've already created java stubs for
		// kotlin files using kapt and compiled them in turbine-apt while running the
		// annotation processors, reuse the result as the kotlin header jar for the javac
		// action. It can't be used as the header jar for downstream modules to compile
		// against because it doesn't contain the kotlin-specific metadata that kotlinc
		// needs.
		flags.classpath = append(classpath{kotlinTurbineAptHeaderJar}, flags.classpath...)
		// Disable annotation processing in javac, it's already been handled by kapt
		flags.processorPath = nil
		flags.processors = nil
		@@ -1127,11 +1137,13 @@ func (j *Module) compile(ctx android.ModuleContext, aaptSrcJar android.Path) {
		return
		}

		// Make javac rule depend on the kotlinc rule
		flags.classpath = append(classpath{kotlinHeaderJar}, flags.classpath...)

		kotlinJars = append(kotlinJars, kotlinJar)
		kotlinHeaderJars = append(kotlinHeaderJars, kotlinHeaderJar)
		if !useTurbineApt {
		// When annotation processors are not enabled use the kotlinc gen-jvm-abi plugin
		// output as the header jar for javac in this module.
		flags.classpath = append(classpath{kotlinHeaderJar}, flags.classpath...)
		}

		// Jar kotlin classes into the final jar after javac
		if BoolDefault(j.properties.Static_kotlin_stdlib, true) {

java/builder.go

+7 −4

Original line number	Diff line number	Diff line
		@@ -415,7 +415,7 @@ func TransformJavaToHeaderClasses(ctx android.ModuleContext, outputFile android.
		}

		// TurbineApt produces a rule to run annotation processors using turbine.
		func TurbineApt(ctx android.ModuleContext, outputSrcJar, outputResJar android.WritablePath,
		func TurbineApt(ctx android.ModuleContext, outputJar, outputSrcJar, outputResJar android.WritablePath,
		srcFiles, srcJars android.Paths, flags javaBuilderFlags) {

		turbineFlags, deps := turbineFlags(ctx, flags)
		@@ -426,8 +426,9 @@ func TurbineApt(ctx android.ModuleContext, outputSrcJar, outputResJar android.Wr
		turbineFlags += " " + flags.processorPath.FormTurbineClassPath("--processorpath ")
		turbineFlags += " --processors " + strings.Join(flags.processors, " ")

		outputs := android.WritablePaths{outputSrcJar, outputResJar}
		outputFlags := "--gensrc_output " + outputSrcJar.String() + ".tmp " +
		outputs := android.WritablePaths{outputJar, outputSrcJar, outputResJar}
		outputFlags := "--output " + outputJar.String() + ".tmp " +
		"--gensrc_output " + outputSrcJar.String() + ".tmp " +
		"--resource_output " + outputResJar.String() + ".tmp"

		rule := turbine
		@@ -442,7 +443,9 @@ func TurbineApt(ctx android.ModuleContext, outputSrcJar, outputResJar android.Wr
		if ctx.Config().UseRBE() && ctx.Config().IsEnvTrue("RBE_TURBINE") {
		rule = turbineRE
		args["implicits"] = strings.Join(deps.Strings(), ",")
		args["rbeOutputs"] = outputSrcJar.String() + ".tmp," + outputResJar.String() + ".tmp"
		args["rbeOutputs"] = outputJar.String() + ".tmp," +
		outputSrcJar.String() + ".tmp," +
		outputResJar.String() + ".tmp"
		}
		ctx.Build(pctx, android.BuildParams{
		Rule: rule,

java/kotlin.go

+3 −3

Original line number	Diff line number	Diff line
		@@ -163,11 +163,11 @@ var kaptStubs = pctx.AndroidRemoteStaticRule("kaptStubs", android.RemoteRuleSupp
		"classpath", "srcJars", "commonSrcFilesArg", "srcJarDir", "kaptDir", "kotlinJvmTarget",
		"kotlinBuildFile", "name", "classesJarOut")

		// kotlinKapt performs Kotlin-compatible annotation processing. It takes .kt and .java sources and srcjars, and runs
		// kotlinTurbineApt performs Kotlin-compatible annotation processing. It takes .kt and .java sources and srcjars, and runs
		// annotation processors over all of them, producing a srcjar of generated code in outputFile. The srcjar should be
		// added as an additional input to kotlinc and javac rules, and the javac rule should have annotation processing
		// disabled.
		func kotlinKapt(ctx android.ModuleContext, srcJarOutputFile, resJarOutputFile android.WritablePath,
		func kotlinTurbineApt(ctx android.ModuleContext, headerJarOutputFile, srcJarOutputFile, resJarOutputFile android.WritablePath,
		srcFiles, commonSrcFiles, srcJars android.Paths,
		flags javaBuilderFlags) {

		@@ -231,7 +231,7 @@ func kotlinKapt(ctx android.ModuleContext, srcJarOutputFile, resJarOutputFile an
		// Then run turbine to perform annotation processing on the stubs and any .java srcFiles.
		javaSrcFiles := srcFiles.FilterByExt(".java")
		turbineSrcJars := append(android.Paths{kaptStubsJar}, srcJars...)
		TurbineApt(ctx, srcJarOutputFile, resJarOutputFile, javaSrcFiles, turbineSrcJars, flags)
		TurbineApt(ctx, headerJarOutputFile, srcJarOutputFile, resJarOutputFile, javaSrcFiles, turbineSrcJars, flags)
		}

		// kapt converts a list of key, value pairs into a base64 encoded Java serialization, which is what kapt expects.

java/kotlin_test.go

+20 −8

Original line number	Diff line number	Diff line
		@@ -155,22 +155,34 @@ func TestKapt(t *testing.T) {
		t.Errorf("expected %q in turbine-apt implicits %v", kaptStubs.Output.String(), kotlinc.Implicits.Strings())
		}

		turbineAptSrcjarOutput := turbineApt.ImplicitOutputs[0]

		// Test that the turbine-apt srcjar is a dependency of kotlinc and javac rules
		if !inList(turbineApt.Output.String(), kotlinc.Implicits.Strings()) {
		t.Errorf("expected %q in kotlinc implicits %v", turbineApt.Output.String(), kotlinc.Implicits.Strings())
		if !inList(turbineAptSrcjarOutput.String(), kotlinc.Implicits.Strings()) {
		t.Errorf("expected %q in kotlinc implicits %v", turbineAptSrcjarOutput.String(), kotlinc.Implicits.Strings())
		}
		if !inList(turbineApt.Output.String(), javac.Implicits.Strings()) {
		t.Errorf("expected %q in javac implicits %v", turbineApt.Output.String(), javac.Implicits.Strings())
		if !inList(turbineAptSrcjarOutput.String(), javac.Implicits.Strings()) {
		t.Errorf("expected %q in javac implicits %v", turbineAptSrcjarOutput.String(), javac.Implicits.Strings())
		}

		// Test that the turbine-apt srcjar is extracted by the kotlinc and javac rules
		if kotlinc.Args["srcJars"] != turbineApt.Output.String() {
		t.Errorf("expected %q in kotlinc srcjars %v", turbineApt.Output.String(), kotlinc.Args["srcJars"])
		if kotlinc.Args["srcJars"] != turbineAptSrcjarOutput.String() {
		t.Errorf("expected %q in kotlinc srcjars %v", turbineAptSrcjarOutput.String(), kotlinc.Args["srcJars"])
		}
		if javac.Args["srcJars"] != turbineApt.Output.String() {
		t.Errorf("expected %q in javac srcjars %v", turbineApt.Output.String(), kotlinc.Args["srcJars"])
		if javac.Args["srcJars"] != turbineAptSrcjarOutput.String() {
		t.Errorf("expected %q in javac srcjars %v", turbineAptSrcjarOutput.String(), kotlinc.Args["srcJars"])
		}

		// Test that the turbine-apt header jar is a dependency of the javac rules
		turbineAptHeaderjarOutput := turbineApt.Output
		android.AssertStringListContains(t, "javac dependency", javac.Implicits.Strings(), turbineAptHeaderjarOutput.String())
		android.AssertStringDoesContain(t, "javac classpath", javac.Args["classpath"], turbineAptHeaderjarOutput.String())

		// Test that the kotlinc header jar is a not a dependency of the javac rules
		kotlincHeaderJarOutput := kotlinc.ImplicitOutput
		android.AssertStringListDoesNotContain(t, "javac dependency", javac.Implicits.Strings(), kotlincHeaderJarOutput.String())
		android.AssertStringDoesNotContain(t, "javac classpath", javac.Args["classpath"], kotlincHeaderJarOutput.String())

		// Test that the processors are passed to kapt
		expectedProcessorPath := "-P plugin:org.jetbrains.kotlin.kapt3:apclasspath=" + bar +
		" -P plugin:org.jetbrains.kotlin.kapt3:apclasspath=" + baz