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platform_build_soong
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platform_build_soong/java/builder.go

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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package java
// This file generates the final rules for compiling all Java. All properties related to
// compiling should have been translated into javaBuilderFlags or another argument to the Transform*
// functions.
import (
"path/filepath"
"strconv"
"strings"
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
"android/soong/android"
"android/soong/remoteexec"
)
var (
pctx = android.NewPackageContext("android/soong/java")
// Compiling java is not conducive to proper dependency tracking. The path-matches-class-name
// requirement leads to unpredictable generated source file names, and a single .java file
// will get compiled into multiple .class files if it contains inner classes. To work around
// this, all java rules write into separate directories and then are combined into a .jar file
// (if the rule produces .class files) or a .srcjar file (if the rule produces .java files).
// .srcjar files are unzipped into a temporary directory when compiled with javac.
// TODO(b/143658984): goma can't handle the --system argument to javac.
javac, javacRE = remoteexec.MultiCommandStaticRules(pctx, "javac",
blueprint.RuleParams{
Command: `rm -rf "$outDir" "$annoDir" "$srcJarDir" && mkdir -p "$outDir" "$annoDir" "$srcJarDir" && ` +
`${config.ZipSyncCmd} -d $srcJarDir -l $srcJarDir/list -f "*.java" $srcJars && ` +
`(if [ -s $srcJarDir/list ] || [ -s $out.rsp ] ; then ` +
`${config.SoongJavacWrapper} $javaTemplate${config.JavacCmd} ` +
`${config.JavacHeapFlags} ${config.JavacVmFlags} ${config.CommonJdkFlags} ` +
`$processorpath $processor $javacFlags $bootClasspath $classpath ` +
`-source $javaVersion -target $javaVersion ` +
`-d $outDir -s $annoDir @$out.rsp @$srcJarDir/list ; fi ) && ` +
`$zipTemplate${config.SoongZipCmd} -jar -o $out -C $outDir -D $outDir && ` +
`rm -rf "$srcJarDir"`,
CommandDeps: []string{
"${config.JavacCmd}",
"${config.SoongZipCmd}",
"${config.ZipSyncCmd}",
},
CommandOrderOnly: []string{"${config.SoongJavacWrapper}"},
Rspfile: "$out.rsp",
RspfileContent: "$in",
}, map[string]*remoteexec.REParams{
"$javaTemplate": &remoteexec.REParams{
Labels: map[string]string{"type": "compile", "lang": "java", "compiler": "javac"},
ExecStrategy: "${config.REJavacExecStrategy}",
Platform: map[string]string{remoteexec.PoolKey: "${config.REJavaPool}"},
},
"$zipTemplate": &remoteexec.REParams{
Labels: map[string]string{"type": "tool", "name": "soong_zip"},
Inputs: []string{"${config.SoongZipCmd}", "$outDir"},
OutputFiles: []string{"$out"},
ExecStrategy: "${config.REJavacExecStrategy}",
Platform: map[string]string{remoteexec.PoolKey: "${config.REJavaPool}"},
},
}, []string{"javacFlags", "bootClasspath", "classpath", "processorpath", "processor", "srcJars", "srcJarDir",
"outDir", "annoDir", "javaVersion"}, nil)
_ = pctx.VariableFunc("kytheCorpus",
func(ctx android.PackageVarContext) string { return ctx.Config().XrefCorpusName() })
_ = pctx.VariableFunc("kytheCuEncoding",
func(ctx android.PackageVarContext) string { return ctx.Config().XrefCuEncoding() })
_ = pctx.SourcePathVariable("kytheVnames", "build/soong/vnames.json")
// Run it with -add-opens=java.base/java.nio=ALL-UNNAMED to avoid JDK9's warning about
// "Illegal reflective access by com.google.protobuf.Utf8$UnsafeProcessor ...
// to field java.nio.Buffer.address"
kytheExtract = pctx.AndroidStaticRule("kythe",
blueprint.RuleParams{
Command: `${config.ZipSyncCmd} -d $srcJarDir ` +
`-l $srcJarDir/list -f "*.java" $srcJars && ` +
`( [ ! -s $srcJarDir/list -a ! -s $out.rsp ] || ` +
`KYTHE_ROOT_DIRECTORY=. KYTHE_OUTPUT_FILE=$out ` +
`KYTHE_CORPUS=${kytheCorpus} ` +
`KYTHE_VNAMES=${kytheVnames} ` +
`KYTHE_KZIP_ENCODING=${kytheCuEncoding} ` +
`${config.SoongJavacWrapper} ${config.JavaCmd} ` +
`--add-opens=java.base/java.nio=ALL-UNNAMED ` +
`-jar ${config.JavaKytheExtractorJar} ` +
`${config.JavacHeapFlags} ${config.CommonJdkFlags} ` +
`$processorpath $processor $javacFlags $bootClasspath $classpath ` +
`-source $javaVersion -target $javaVersion ` +
`-d $outDir -s $annoDir @$out.rsp @$srcJarDir/list)`,
CommandDeps: []string{
"${config.JavaCmd}",
"${config.JavaKytheExtractorJar}",
"${kytheVnames}",
"${config.ZipSyncCmd}",
},
CommandOrderOnly: []string{"${config.SoongJavacWrapper}"},
Rspfile: "$out.rsp",
RspfileContent: "$in",
},
"javacFlags", "bootClasspath", "classpath", "processorpath", "processor", "srcJars", "srcJarDir",
"outDir", "annoDir", "javaVersion")
extractMatchingApks = pctx.StaticRule(
"extractMatchingApks",
blueprint.RuleParams{
Command: `rm -rf "$out" && ` +
`${config.ExtractApksCmd} -o "${out}" -allow-prereleased=${allow-prereleased} ` +
`-sdk-version=${sdk-version} -abis=${abis} ` +
`--screen-densities=${screen-densities} --stem=${stem} ` +
`-apkcerts=${apkcerts} -partition=${partition} ` +
`${in}`,
CommandDeps: []string{"${config.ExtractApksCmd}"},
},
"abis", "allow-prereleased", "screen-densities", "sdk-version", "stem", "apkcerts", "partition")
turbine, turbineRE = remoteexec.StaticRules(pctx, "turbine",
blueprint.RuleParams{
Command: `rm -rf "$outDir" && mkdir -p "$outDir" && ` +
`$reTemplate${config.JavaCmd} ${config.JavaVmFlags} -jar ${config.TurbineJar} --output $out.tmp ` +
`--temp_dir "$outDir" --sources @$out.rsp --source_jars $srcJars ` +
`--javacopts ${config.CommonJdkFlags} ` +
`$javacFlags -source $javaVersion -target $javaVersion -- $bootClasspath $classpath && ` +
`${config.Ziptime} $out.tmp && ` +
`(if cmp -s $out.tmp $out ; then rm $out.tmp ; else mv $out.tmp $out ; fi )`,
CommandDeps: []string{
"${config.TurbineJar}",
"${config.JavaCmd}",
"${config.Ziptime}",
},
Rspfile: "$out.rsp",
RspfileContent: "$in",
Restat: true,
},
&remoteexec.REParams{Labels: map[string]string{"type": "tool", "name": "turbine"},
ExecStrategy: "${config.RETurbineExecStrategy}",
Inputs: []string{"${config.TurbineJar}", "${out}.rsp", "$implicits"},
RSPFile: "${out}.rsp",
OutputFiles: []string{"$out.tmp"},
OutputDirectories: []string{"$outDir"},
ToolchainInputs: []string{"${config.JavaCmd}"},
Platform: map[string]string{remoteexec.PoolKey: "${config.REJavaPool}"},
}, []string{"javacFlags", "bootClasspath", "classpath", "srcJars", "outDir", "javaVersion"}, []string{"implicits"})
jar, jarRE = remoteexec.StaticRules(pctx, "jar",
blueprint.RuleParams{
Command: `$reTemplate${config.SoongZipCmd} -jar -o $out @$out.rsp`,
CommandDeps: []string{"${config.SoongZipCmd}"},
Rspfile: "$out.rsp",
RspfileContent: "$jarArgs",
},
&remoteexec.REParams{
ExecStrategy: "${config.REJarExecStrategy}",
Inputs: []string{"${config.SoongZipCmd}", "${out}.rsp"},
RSPFile: "${out}.rsp",
OutputFiles: []string{"$out"},
Platform: map[string]string{remoteexec.PoolKey: "${config.REJavaPool}"},
}, []string{"jarArgs"}, nil)
zip, zipRE = remoteexec.StaticRules(pctx, "zip",
blueprint.RuleParams{
Command: `${config.SoongZipCmd} -o $out @$out.rsp`,
CommandDeps: []string{"${config.SoongZipCmd}"},
Rspfile: "$out.rsp",
RspfileContent: "$jarArgs",
},
&remoteexec.REParams{
ExecStrategy: "${config.REZipExecStrategy}",
Inputs: []string{"${config.SoongZipCmd}", "${out}.rsp", "$implicits"},
RSPFile: "${out}.rsp",
OutputFiles: []string{"$out"},
Platform: map[string]string{remoteexec.PoolKey: "${config.REJavaPool}"},
}, []string{"jarArgs"}, []string{"implicits"})
combineJar = pctx.AndroidStaticRule("combineJar",
blueprint.RuleParams{
Command: `${config.MergeZipsCmd} --ignore-duplicates -j $jarArgs $out $in`,
CommandDeps: []string{"${config.MergeZipsCmd}"},
},
"jarArgs")
jarjar = pctx.AndroidStaticRule("jarjar",
blueprint.RuleParams{
Command: "${config.JavaCmd} ${config.JavaVmFlags}" +
// b/146418363 Enable Android specific jarjar transformer to drop compat annotations
// for newly repackaged classes. Dropping @UnsupportedAppUsage on repackaged classes
// avoids adding new hiddenapis after jarjar'ing.
" -DremoveAndroidCompatAnnotations=true" +
" -jar ${config.JarjarCmd} process $rulesFile $in $out",
CommandDeps: []string{"${config.JavaCmd}", "${config.JarjarCmd}", "$rulesFile"},
},
"rulesFile")
packageCheck = pctx.AndroidStaticRule("packageCheck",
blueprint.RuleParams{
Command: "rm -f $out && " +
"${config.PackageCheckCmd} $in $packages && " +
"touch $out",
CommandDeps: []string{"${config.PackageCheckCmd}"},
},
"packages")
jetifier = pctx.AndroidStaticRule("jetifier",
blueprint.RuleParams{
Command: "${config.JavaCmd} ${config.JavaVmFlags} -jar ${config.JetifierJar} -l error -o $out -i $in",
CommandDeps: []string{"${config.JavaCmd}", "${config.JetifierJar}"},
},
)
zipalign = pctx.AndroidStaticRule("zipalign",
blueprint.RuleParams{
Command: "if ! ${config.ZipAlign} -c -p 4 $in > /dev/null; then " +
"${config.ZipAlign} -f -p 4 $in $out; " +
"else " +
"cp -f $in $out; " +
"fi",
CommandDeps: []string{"${config.ZipAlign}"},
},
)
)
func init() {
pctx.Import("android/soong/android")
pctx.Import("android/soong/java/config")
pctx.Import("android/soong/remoteexec")
}
type javaBuilderFlags struct {
javacFlags string
bootClasspath classpath
classpath classpath
java9Classpath classpath
processorPath classpath
processors []string
systemModules *systemModules
aidlFlags string
aidlDeps android.Paths
javaVersion javaVersion
errorProneExtraJavacFlags string
errorProneProcessorPath classpath
kotlincFlags string
kotlincClasspath classpath
proto android.ProtoFlags
}
func TransformJavaToClasses(ctx android.ModuleContext, outputFile android.WritablePath, shardIdx int,
srcFiles, srcJars android.Paths, flags javaBuilderFlags, deps android.Paths) {
// Compile java sources into .class files
desc := "javac"
if shardIdx >= 0 {
desc += strconv.Itoa(shardIdx)
}
transformJavaToClasses(ctx, outputFile, shardIdx, srcFiles, srcJars, flags, deps, "javac", desc)
}
func RunErrorProne(ctx android.ModuleContext, outputFile android.WritablePath,
srcFiles, srcJars android.Paths, flags javaBuilderFlags) {
flags.processorPath = append(flags.errorProneProcessorPath, flags.processorPath...)
if len(flags.errorProneExtraJavacFlags) > 0 {
if len(flags.javacFlags) > 0 {
flags.javacFlags += " " + flags.errorProneExtraJavacFlags
} else {
flags.javacFlags = flags.errorProneExtraJavacFlags
}
}
transformJavaToClasses(ctx, outputFile, -1, srcFiles, srcJars, flags, nil,
"errorprone", "errorprone")
}
// Emits the rule to generate Xref input file (.kzip file) for the given set of source files and source jars
// to compile with given set of builder flags, etc.
func emitXrefRule(ctx android.ModuleContext, xrefFile android.WritablePath, idx int,
srcFiles, srcJars android.Paths,
flags javaBuilderFlags, deps android.Paths) {
deps = append(deps, srcJars...)
classpath := flags.classpath
var bootClasspath string
if flags.javaVersion.usesJavaModules() {
var systemModuleDeps android.Paths
bootClasspath, systemModuleDeps = flags.systemModules.FormJavaSystemModulesPath(ctx.Device())
deps = append(deps, systemModuleDeps...)
classpath = append(flags.java9Classpath, classpath...)
} else {
deps = append(deps, flags.bootClasspath...)
if len(flags.bootClasspath) == 0 && ctx.Device() {
// explicitly specify -bootclasspath "" if the bootclasspath is empty to
// ensure java does not fall back to the default bootclasspath.
bootClasspath = `-bootclasspath ""`
} else {
bootClasspath = flags.bootClasspath.FormJavaClassPath("-bootclasspath")
}
}
deps = append(deps, classpath...)
deps = append(deps, flags.processorPath...)
processor := "-proc:none"
if len(flags.processors) > 0 {
processor = "-processor " + strings.Join(flags.processors, ",")
}
intermediatesDir := "xref"
if idx >= 0 {
intermediatesDir += strconv.Itoa(idx)
}
ctx.Build(pctx,
android.BuildParams{
Rule: kytheExtract,
Description: "Xref Java extractor",
Output: xrefFile,
Inputs: srcFiles,
Implicits: deps,
Args: map[string]string{
"annoDir": android.PathForModuleOut(ctx, intermediatesDir, "anno").String(),
"bootClasspath": bootClasspath,
"classpath": classpath.FormJavaClassPath("-classpath"),
"javacFlags": flags.javacFlags,
"javaVersion": flags.javaVersion.String(),
"outDir": android.PathForModuleOut(ctx, "javac", "classes.xref").String(),
"processorpath": flags.processorPath.FormJavaClassPath("-processorpath"),
"processor": processor,
"srcJarDir": android.PathForModuleOut(ctx, intermediatesDir, "srcjars.xref").String(),
"srcJars": strings.Join(srcJars.Strings(), " "),
},
})
}
func TransformJavaToHeaderClasses(ctx android.ModuleContext, outputFile android.WritablePath,
srcFiles, srcJars android.Paths, flags javaBuilderFlags) {
var deps android.Paths
deps = append(deps, srcJars...)
classpath := flags.classpath
var bootClasspath string
if flags.javaVersion.usesJavaModules() {
var systemModuleDeps android.Paths
bootClasspath, systemModuleDeps = flags.systemModules.FormTurbineSystemModulesPath(ctx.Device())
deps = append(deps, systemModuleDeps...)
classpath = append(flags.java9Classpath, classpath...)
} else {
deps = append(deps, flags.bootClasspath...)
if len(flags.bootClasspath) == 0 && ctx.Device() {
// explicitly specify -bootclasspath "" if the bootclasspath is empty to
// ensure turbine does not fall back to the default bootclasspath.
bootClasspath = `--bootclasspath ""`
} else {
bootClasspath = flags.bootClasspath.FormTurbineClassPath("--bootclasspath ")
}
}
deps = append(deps, classpath...)
deps = append(deps, flags.processorPath...)
rule := turbine
args := map[string]string{
"javacFlags": flags.javacFlags,
"bootClasspath": bootClasspath,
"srcJars": strings.Join(srcJars.Strings(), " "),
"classpath": classpath.FormTurbineClassPath("--classpath "),
"outDir": android.PathForModuleOut(ctx, "turbine", "classes").String(),
"javaVersion": flags.javaVersion.String(),
}
if ctx.Config().UseRBE() && ctx.Config().IsEnvTrue("RBE_TURBINE") {
rule = turbineRE
args["implicits"] = strings.Join(deps.Strings(), ",")
}
ctx.Build(pctx, android.BuildParams{
Rule: rule,
Description: "turbine",
Output: outputFile,
Inputs: srcFiles,
Implicits: deps,
Args: args,
})
}
// transformJavaToClasses takes source files and converts them to a jar containing .class files.
// srcFiles is a list of paths to sources, srcJars is a list of paths to jar files that contain
// sources. flags contains various command line flags to be passed to the compiler.
//
// This method may be used for different compilers, including javac and Error Prone. The rule
// argument specifies which command line to use and desc sets the description of the rule that will
// be printed at build time. The stem argument provides the file name of the output jar, and
// suffix will be appended to various intermediate files and directories to avoid collisions when
// this function is called twice in the same module directory.
func transformJavaToClasses(ctx android.ModuleContext, outputFile android.WritablePath,
shardIdx int, srcFiles, srcJars android.Paths,
flags javaBuilderFlags, deps android.Paths,
intermediatesDir, desc string) {
deps = append(deps, srcJars...)
classpath := flags.classpath
var bootClasspath string
if flags.javaVersion.usesJavaModules() {
var systemModuleDeps android.Paths
bootClasspath, systemModuleDeps = flags.systemModules.FormJavaSystemModulesPath(ctx.Device())
deps = append(deps, systemModuleDeps...)
classpath = append(flags.java9Classpath, classpath...)
} else {
deps = append(deps, flags.bootClasspath...)
if len(flags.bootClasspath) == 0 && ctx.Device() {
// explicitly specify -bootclasspath "" if the bootclasspath is empty to
// ensure java does not fall back to the default bootclasspath.
bootClasspath = `-bootclasspath ""`
} else {
bootClasspath = flags.bootClasspath.FormJavaClassPath("-bootclasspath")
}
}
deps = append(deps, classpath...)
deps = append(deps, flags.processorPath...)
processor := "-proc:none"
if len(flags.processors) > 0 {
processor = "-processor " + strings.Join(flags.processors, ",")
}
srcJarDir := "srcjars"
outDir := "classes"
annoDir := "anno"
if shardIdx >= 0 {
shardDir := "shard" + strconv.Itoa(shardIdx)
srcJarDir = filepath.Join(shardDir, srcJarDir)
outDir = filepath.Join(shardDir, outDir)
annoDir = filepath.Join(shardDir, annoDir)
}
rule := javac
if ctx.Config().UseRBE() && ctx.Config().IsEnvTrue("RBE_JAVAC") {
rule = javacRE
}
ctx.Build(pctx, android.BuildParams{
Rule: rule,
Description: desc,
Output: outputFile,
Inputs: srcFiles,
Implicits: deps,
Args: map[string]string{
"javacFlags": flags.javacFlags,
"bootClasspath": bootClasspath,
"classpath": classpath.FormJavaClassPath("-classpath"),
"processorpath": flags.processorPath.FormJavaClassPath("-processorpath"),
"processor": processor,
"srcJars": strings.Join(srcJars.Strings(), " "),
"srcJarDir": android.PathForModuleOut(ctx, intermediatesDir, srcJarDir).String(),
"outDir": android.PathForModuleOut(ctx, intermediatesDir, outDir).String(),
"annoDir": android.PathForModuleOut(ctx, intermediatesDir, annoDir).String(),
"javaVersion": flags.javaVersion.String(),
},
})
}
func TransformResourcesToJar(ctx android.ModuleContext, outputFile android.WritablePath,
jarArgs []string, deps android.Paths) {
rule := jar
if ctx.Config().UseRBE() && ctx.Config().IsEnvTrue("RBE_JAR") {
rule = jarRE
}
ctx.Build(pctx, android.BuildParams{
Rule: rule,
Description: "jar",
Output: outputFile,
Implicits: deps,
Args: map[string]string{
"jarArgs": strings.Join(proptools.NinjaAndShellEscapeList(jarArgs), " "),
},
})
}
func TransformJarsToJar(ctx android.ModuleContext, outputFile android.WritablePath, desc string,
jars android.Paths, manifest android.OptionalPath, stripDirEntries bool, filesToStrip []string,
dirsToStrip []string) {
var deps android.Paths
var jarArgs []string
if manifest.Valid() {
jarArgs = append(jarArgs, "-m ", manifest.String())
deps = append(deps, manifest.Path())
}
for _, dir := range dirsToStrip {
jarArgs = append(jarArgs, "-stripDir ", dir)
}
for _, file := range filesToStrip {
jarArgs = append(jarArgs, "-stripFile ", file)
}
// Remove any module-info.class files that may have come from prebuilt jars, they cause problems
// for downstream tools like desugar.
jarArgs = append(jarArgs, "-stripFile module-info.class")
if stripDirEntries {
jarArgs = append(jarArgs, "-D")
}
ctx.Build(pctx, android.BuildParams{
Rule: combineJar,
Description: desc,
Output: outputFile,
Inputs: jars,
Implicits: deps,
Args: map[string]string{
"jarArgs": strings.Join(jarArgs, " "),
},
})
}
func TransformJarJar(ctx android.ModuleContext, outputFile android.WritablePath,
classesJar android.Path, rulesFile android.Path) {
ctx.Build(pctx, android.BuildParams{
Rule: jarjar,
Description: "jarjar",
Output: outputFile,
Input: classesJar,
Implicit: rulesFile,
Args: map[string]string{
"rulesFile": rulesFile.String(),
},
})
}
func CheckJarPackages(ctx android.ModuleContext, outputFile android.WritablePath,
classesJar android.Path, permittedPackages []string) {
ctx.Build(pctx, android.BuildParams{
Rule: packageCheck,
Description: "packageCheck",
Output: outputFile,
Input: classesJar,
Args: map[string]string{
"packages": strings.Join(permittedPackages, " "),
},
})
}
func TransformJetifier(ctx android.ModuleContext, outputFile android.WritablePath,
inputFile android.Path) {
ctx.Build(pctx, android.BuildParams{
Rule: jetifier,
Description: "jetifier",
Output: outputFile,
Input: inputFile,
})
}
func GenerateMainClassManifest(ctx android.ModuleContext, outputFile android.WritablePath, mainClass string) {
android.WriteFileRule(ctx, outputFile, "Main-Class: "+mainClass+"\n")
}
func TransformZipAlign(ctx android.ModuleContext, outputFile android.WritablePath, inputFile android.Path) {
ctx.Build(pctx, android.BuildParams{
Rule: zipalign,
Description: "align",
Input: inputFile,
Output: outputFile,
})
}
type classpath android.Paths
func (x *classpath) formJoinedClassPath(optName string, sep string) string {
if optName != "" && !strings.HasSuffix(optName, "=") && !strings.HasSuffix(optName, " ") {
optName += " "
}
if len(*x) > 0 {
return optName + strings.Join(x.Strings(), sep)
} else {
return ""
}
}
func (x *classpath) FormJavaClassPath(optName string) string {
return x.formJoinedClassPath(optName, ":")
}
func (x *classpath) FormTurbineClassPath(optName string) string {
return x.formJoinedClassPath(optName, " ")
}
// FormRepeatedClassPath returns a list of arguments with the given optName prefixed to each element of the classpath.
func (x *classpath) FormRepeatedClassPath(optName string) []string {
if x == nil || *x == nil {
return nil
}
flags := make([]string, len(*x))
for i, v := range *x {
flags[i] = optName + v.String()
}
return flags
}
// Convert a classpath to an android.Paths
func (x *classpath) Paths() android.Paths {
return append(android.Paths(nil), (*x)...)
}
func (x *classpath) Strings() []string {
if x == nil {
return nil
}
ret := make([]string, len(*x))
for i, path := range *x {
ret[i] = path.String()
}
return ret
}
type systemModules struct {
dir android.Path
deps android.Paths
}
// Returns a --system argument in the form javac expects with -source 1.9 and the list of files to
// depend on. If forceEmpty is true, returns --system=none if the list is empty to ensure javac
// does not fall back to the default system modules.
func (x *systemModules) FormJavaSystemModulesPath(forceEmpty bool) (string, android.Paths) {
if x != nil {
return "--system=" + x.dir.String(), x.deps
} else if forceEmpty {
return "--system=none", nil
} else {
return "", nil
}
}
// Returns a --system argument in the form turbine expects with -source 1.9 and the list of files to
// depend on. If forceEmpty is true, returns --bootclasspath "" if the list is empty to ensure turbine
// does not fall back to the default bootclasspath.
func (x *systemModules) FormTurbineSystemModulesPath(forceEmpty bool) (string, android.Paths) {
if x != nil {
return "--system " + x.dir.String(), x.deps
} else if forceEmpty {
return `--bootclasspath ""`, nil
} else {
return "", nil
}
}
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