/*
* Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.javac.main;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Stream;
import javax.lang.model.SourceVersion;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileManager.Location;
import javax.tools.JavaFileObject;
import javax.tools.JavaFileObject.Kind;
import javax.tools.StandardJavaFileManager;
import javax.tools.StandardLocation;
import com.sun.tools.doclint.DocLint;
import com.sun.tools.javac.code.Lint.LintCategory;
import com.sun.tools.javac.code.Source;
import com.sun.tools.javac.file.BaseFileManager;
import com.sun.tools.javac.file.JavacFileManager;
import com.sun.tools.javac.jvm.Profile;
import com.sun.tools.javac.jvm.Target;
import com.sun.tools.javac.main.OptionHelper.GrumpyHelper;
import com.sun.tools.javac.platform.PlatformDescription;
import com.sun.tools.javac.platform.PlatformUtils;
import com.sun.tools.javac.resources.CompilerProperties.Errors;
import com.sun.tools.javac.resources.CompilerProperties.Warnings;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.JCDiagnostic;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.ListBuffer;
import com.sun.tools.javac.util.Log;
import com.sun.tools.javac.util.Log.PrefixKind;
import com.sun.tools.javac.util.Log.WriterKind;
import com.sun.tools.javac.util.Options;
import com.sun.tools.javac.util.PropagatedException;
/**
* Shared option and argument handling for command line and API usage of javac.
*/
public class Arguments {
/**
* The context key for the arguments.
*/
public static final Context.Key<Arguments> argsKey = new Context.Key<>();
private String ownName;
private Set<String> classNames;
private Set<Path> files;
private Map<Option, String> deferredFileManagerOptions;
private Set<JavaFileObject> fileObjects;
private boolean emptyAllowed;
private final Options options;
private JavaFileManager fileManager;
private final Log log;
private final Context context;
private enum ErrorMode { ILLEGAL_ARGUMENT, ILLEGAL_STATE, LOG };
private ErrorMode errorMode;
private boolean errors;
/**
* Gets the Arguments instance for this context.
*
* @param context the content
* @return the Arguments instance for this context.
*/
public static Arguments instance(Context context) {
Arguments instance = context.get(argsKey);
if (instance == null) {
instance = new Arguments(context);
}
return instance;
}
protected Arguments(Context context) {
context.put(argsKey, this);
options = Options.instance(context);
log = Log.instance(context);
this.context = context;
// Ideally, we could init this here and update/configure it as
// needed, but right now, initializing a file manager triggers
// initialization of other items in the context, such as Lint
// and FSInfo, which should not be initialized until after
// processArgs
// fileManager = context.get(JavaFileManager.class);
}
private final OptionHelper cmdLineHelper = new OptionHelper() {
@Override
public String get(Option option) {
return options.get(option);
}
@Override
public void put(String name, String value) {
options.put(name, value);
}
@Override
public void remove(String name) {
options.remove(name);
}
@Override
public boolean handleFileManagerOption(Option option, String value) {
options.put(option, value);
deferredFileManagerOptions.put(option, value);
return true;
}
@Override
public Log getLog() {
return log;
}
@Override
public String getOwnName() {
return ownName;
}
@Override
public void addFile(Path p) {
files.add(p);
}
@Override
public void addClassName(String s) {
classNames.add(s);
}
};
/**
* Initializes this Args instance with a set of command line args.
* The args will be processed in conjunction with the full set of
* command line options, including -help, -version etc.
* The args may also contain class names and filenames.
* Any errors during this call, and later during validate, will be reported
* to the log.
* @param ownName the name of this tool; used to prefix messages
* @param args the args to be processed
*/
public void init(String ownName, String... args) {
this.ownName = ownName;
errorMode = ErrorMode.LOG;
files = new LinkedHashSet<>();
deferredFileManagerOptions = new LinkedHashMap<>();
fileObjects = null;
classNames = new LinkedHashSet<>();
processArgs(List.from(args), Option.getJavaCompilerOptions(), cmdLineHelper, true, false);
if (errors) {
log.printLines(PrefixKind.JAVAC, "msg.usage", ownName);
}
}
private final OptionHelper apiHelper = new GrumpyHelper(null) {
@Override
public String get(Option option) {
return options.get(option);
}
@Override
public void put(String name, String value) {
options.put(name, value);
}
@Override
public void remove(String name) {
options.remove(name);
}
@Override
public Log getLog() {
return Arguments.this.log;
}
};
/**
* Initializes this Args instance with the parameters for a JavacTask.
* The options will be processed in conjunction with the restricted set
* of tool options, which does not include -help, -version, etc,
* nor does it include classes and filenames, which should be specified
* separately.
* File manager options are handled directly by the file manager.
* Any errors found while processing individual args will be reported
* via IllegalArgumentException.
* Any subsequent errors during validate will be reported via IllegalStateException.
* @param ownName the name of this tool; used to prefix messages
* @param options the options to be processed
* @param classNames the classes to be subject to annotation processing
* @param files the files to be compiled
*/
public void init(String ownName,
Iterable<String> options,
Iterable<String> classNames,
Iterable<? extends JavaFileObject> files) {
this.ownName = ownName;
this.classNames = toSet(classNames);
this.fileObjects = toSet(files);
this.files = null;
errorMode = ErrorMode.ILLEGAL_ARGUMENT;
if (options != null) {
processArgs(toList(options), Option.getJavacToolOptions(), apiHelper, false, true);
}
errorMode = ErrorMode.ILLEGAL_STATE;
}
/**
* Minimal initialization for tools, like javadoc,
* to be able to process javac options for themselves,
* and then call validate.
* @param ownName the name of this tool; used to prefix messages
*/
public void init(String ownName) {
this.ownName = ownName;
errorMode = ErrorMode.LOG;
}
/**
* Gets the files to be compiled.
* @return the files to be compiled
*/
public Set<JavaFileObject> getFileObjects() {
if (fileObjects == null) {
fileObjects = new LinkedHashSet<>();
}
if (files != null) {
JavacFileManager jfm = (JavacFileManager) getFileManager();
for (JavaFileObject fo: jfm.getJavaFileObjectsFromPaths(files))
fileObjects.add(fo);
}
return fileObjects;
}
/**
* Gets the classes to be subject to annotation processing.
* @return the classes to be subject to annotation processing
*/
public Set<String> getClassNames() {
return classNames;
}
/**
* Processes strings containing options and operands.
* @param args the strings to be processed
* @param allowableOpts the set of option declarations that are applicable
* @param helper a help for use by Option.process
* @param allowOperands whether or not to check for files and classes
* @param checkFileManager whether or not to check if the file manager can handle
* options which are not recognized by any of allowableOpts
* @return true if all the strings were successfully processed; false otherwise
* @throws IllegalArgumentException if a problem occurs and errorMode is set to
* ILLEGAL_ARGUMENT
*/
private boolean processArgs(Iterable<String> args,
Set<Option> allowableOpts, OptionHelper helper,
boolean allowOperands, boolean checkFileManager) {
if (!doProcessArgs(args, allowableOpts, helper, allowOperands, checkFileManager))
return false;
String platformString = options.get(Option.RELEASE);
checkOptionAllowed(platformString == null,
option -> error("err.release.bootclasspath.conflict", option.getPrimaryName()),
Option.BOOT_CLASS_PATH, Option.XBOOTCLASSPATH, Option.XBOOTCLASSPATH_APPEND,
Option.XBOOTCLASSPATH_PREPEND,
Option.ENDORSEDDIRS, Option.DJAVA_ENDORSED_DIRS,
Option.EXTDIRS, Option.DJAVA_EXT_DIRS,
Option.SOURCE, Option.TARGET);
if (platformString != null) {
PlatformDescription platformDescription = PlatformUtils.lookupPlatformDescription(platformString);
if (platformDescription == null) {
error("err.unsupported.release.version", platformString);
return false;
}
options.put(Option.SOURCE, platformDescription.getSourceVersion());
options.put(Option.TARGET, platformDescription.getTargetVersion());
context.put(PlatformDescription.class, platformDescription);
if (!doProcessArgs(platformDescription.getAdditionalOptions(), allowableOpts, helper, allowOperands, checkFileManager))
return false;
Collection<Path> platformCP = platformDescription.getPlatformPath();
if (platformCP != null) {
JavaFileManager fm = getFileManager();
if (!(fm instanceof StandardJavaFileManager)) {
error("err.release.not.standard.file.manager");
return false;
}
try {
StandardJavaFileManager sfm = (StandardJavaFileManager) fm;
sfm.setLocationFromPaths(StandardLocation.PLATFORM_CLASS_PATH, platformCP);
} catch (IOException ex) {
log.printLines(PrefixKind.JAVAC, "msg.io");
ex.printStackTrace(log.getWriter(WriterKind.NOTICE));
return false;
}
}
}
options.notifyListeners();
return true;
}
private boolean doProcessArgs(Iterable<String> args,
Set<Option> allowableOpts, OptionHelper helper,
boolean allowOperands, boolean checkFileManager) {
JavaFileManager fm = checkFileManager ? getFileManager() : null;
Iterator<String> argIter = args.iterator();
while (argIter.hasNext()) {
String arg = argIter.next();
if (arg.isEmpty()) {
error("err.invalid.flag", arg);
return false;
}
Option option = null;
// first, check the provided set of javac options
if (arg.startsWith("-")) {
option = Option.lookup(arg, allowableOpts);
} else if (allowOperands && Option.SOURCEFILE.matches(arg)) {
option = Option.SOURCEFILE;
}
if (option != null) {
try {
option.handleOption(helper, arg, argIter);
} catch (Option.InvalidValueException e) {
error(e);
return false;
}
continue;
}
// check file manager option
if (fm != null && fm.handleOption(arg, argIter)) {
continue;
}
// none of the above
error("err.invalid.flag", arg);
return false;
}
return true;
}
/**
* Validates the overall consistency of the options and operands
* processed by processOptions.
* @return true if all args are successfully validated; false otherwise.
* @throws IllegalStateException if a problem is found and errorMode is set to
* ILLEGAL_STATE
*/
public boolean validate() {
JavaFileManager fm = getFileManager();
if (options.isSet(Option.MODULE)) {
if (!fm.hasLocation(StandardLocation.CLASS_OUTPUT)) {
log.error(Errors.OutputDirMustBeSpecifiedWithDashMOption);
} else if (!fm.hasLocation(StandardLocation.MODULE_SOURCE_PATH)) {
log.error(Errors.ModulesourcepathMustBeSpecifiedWithDashMOption);
} else {
java.util.List<String> modules = Arrays.asList(options.get(Option.MODULE).split(","));
try {
for (String module : modules) {
Location sourceLoc = fm.getLocationForModule(StandardLocation.MODULE_SOURCE_PATH, module);
if (sourceLoc == null) {
log.error(Errors.ModuleNotFoundInModuleSourcePath(module));
} else {
Location classLoc = fm.getLocationForModule(StandardLocation.CLASS_OUTPUT, module);
for (JavaFileObject file : fm.list(sourceLoc, "", EnumSet.of(JavaFileObject.Kind.SOURCE), true)) {
String className = fm.inferBinaryName(sourceLoc, file);
JavaFileObject classFile = fm.getJavaFileForInput(classLoc, className, Kind.CLASS);
if (classFile == null || classFile.getLastModified() < file.getLastModified()) {
if (fileObjects == null)
fileObjects = new HashSet<>();
fileObjects.add(file);
}
}
}
}
} catch (IOException ex) {
log.printLines(PrefixKind.JAVAC, "msg.io");
ex.printStackTrace(log.getWriter(WriterKind.NOTICE));
return false;
}
}
}
if (isEmpty()) {
// It is allowed to compile nothing if just asking for help or version info.
// But also note that none of these options are supported in API mode.
if (options.isSet(Option.HELP)
|| options.isSet(Option.X)
|| options.isSet(Option.VERSION)
|| options.isSet(Option.FULLVERSION)
|| options.isSet(Option.MODULE)) {
return true;
}
if (!emptyAllowed) {
if (!errors) {
if (JavaCompiler.explicitAnnotationProcessingRequested(options)) {
error("err.no.source.files.classes");
} else {
error("err.no.source.files");
}
}
return false;
}
}
if (!checkDirectory(Option.D)) {
return false;
}
if (!checkDirectory(Option.S)) {
return false;
}
if (!checkDirectory(Option.H)) {
return false;
}
// The following checks are to help avoid accidental confusion between
// directories of modules and exploded module directories.
if (fm instanceof StandardJavaFileManager) {
StandardJavaFileManager sfm = (StandardJavaFileManager) fileManager;
if (sfm.hasLocation(StandardLocation.CLASS_OUTPUT)) {
Path outDir = sfm.getLocationAsPaths(StandardLocation.CLASS_OUTPUT).iterator().next();
if (sfm.hasLocation(StandardLocation.MODULE_SOURCE_PATH)) {
// multi-module mode
if (Files.exists(outDir.resolve("module-info.class"))) {
log.error(Errors.MultiModuleOutdirCannotBeExplodedModule(outDir));
}
} else {
// single-module or legacy mode
boolean lintPaths = options.isUnset(Option.XLINT_CUSTOM,
"-" + LintCategory.PATH.option);
if (lintPaths) {
Path outDirParent = outDir.getParent();
if (outDirParent != null && Files.exists(outDirParent.resolve("module-info.class"))) {
log.warning(LintCategory.PATH, Warnings.OutdirIsInExplodedModule(outDir));
}
}
}
}
}
String sourceString = options.get(Option.SOURCE);
Source source = (sourceString != null)
? Source.lookup(sourceString)
: Source.DEFAULT;
String targetString = options.get(Option.TARGET);
Target target = (targetString != null)
? Target.lookup(targetString)
: Target.DEFAULT;
// We don't check source/target consistency for CLDC, as J2ME
// profiles are not aligned with J2SE targets; moreover, a
// single CLDC target may have many profiles. In addition,
// this is needed for the continued functioning of the JSR14
// prototype.
if (Character.isDigit(target.name.charAt(0))) {
if (target.compareTo(source.requiredTarget()) < 0) {
if (targetString != null) {
if (sourceString == null) {
error("warn.target.default.source.conflict",
targetString,
source.requiredTarget().name);
} else {
error("warn.source.target.conflict",
sourceString,
source.requiredTarget().name);
}
return false;
} else {
target = source.requiredTarget();
options.put("-target", target.name);
}
}
}
String profileString = options.get(Option.PROFILE);
if (profileString != null) {
Profile profile = Profile.lookup(profileString);
if (!profile.isValid(target)) {
error("warn.profile.target.conflict", profileString, target.name);
}
// This check is only effective in command line mode,
// where the file manager options are added to options
if (options.get(Option.BOOT_CLASS_PATH) != null) {
error("err.profile.bootclasspath.conflict");
}
}
if (options.isSet(Option.SOURCE_PATH) && options.isSet(Option.MODULE_SOURCE_PATH)) {
error("err.sourcepath.modulesourcepath.conflict");
}
boolean lintOptions = options.isUnset(Option.XLINT_CUSTOM, "-" + LintCategory.OPTIONS.option);
if (lintOptions && source.compareTo(Source.DEFAULT) < 0 && !options.isSet(Option.RELEASE)) {
if (fm instanceof BaseFileManager) {
if (((BaseFileManager) fm).isDefaultBootClassPath())
log.warning(LintCategory.OPTIONS, "source.no.bootclasspath", source.name);
}
}
boolean obsoleteOptionFound = false;
if (source.compareTo(Source.MIN) < 0) {
log.error(Errors.OptionRemovedSource(source.name, Source.MIN.name));
} else if (source == Source.MIN && lintOptions) {
log.warning(LintCategory.OPTIONS, Warnings.OptionObsoleteSource(source.name));
obsoleteOptionFound = true;
}
if (target.compareTo(Target.MIN) < 0) {
log.error(Errors.OptionRemovedTarget(target.name, Target.MIN.name));
} else if (target == Target.MIN && lintOptions) {
log.warning(LintCategory.OPTIONS, Warnings.OptionObsoleteTarget(target.name));
obsoleteOptionFound = true;
}
final Target t = target;
checkOptionAllowed(t.compareTo(Target.JDK1_8) <= 0,
option -> error("err.option.not.allowed.with.target", option.getPrimaryName(), t.name),
Option.BOOT_CLASS_PATH,
Option.XBOOTCLASSPATH_PREPEND, Option.XBOOTCLASSPATH, Option.XBOOTCLASSPATH_APPEND,
Option.ENDORSEDDIRS, Option.DJAVA_ENDORSED_DIRS,
Option.EXTDIRS, Option.DJAVA_EXT_DIRS);
checkOptionAllowed(t.compareTo(Target.JDK1_9) >= 0,
option -> error("err.option.not.allowed.with.target", option.getPrimaryName(), t.name),
Option.MODULE_SOURCE_PATH, Option.UPGRADE_MODULE_PATH,
Option.SYSTEM, Option.MODULE_PATH, Option.ADD_MODULES, Option.LIMIT_MODULES,
Option.PATCH_MODULE);
if (fm.hasLocation(StandardLocation.MODULE_SOURCE_PATH)) {
if (!options.isSet(Option.PROC, "only")
&& !fm.hasLocation(StandardLocation.CLASS_OUTPUT)) {
log.error(Errors.NoOutputDir);
}
if (options.isSet(Option.XMODULE)) {
log.error(Errors.XmoduleNoModuleSourcepath);
}
}
if (fm.hasLocation(StandardLocation.ANNOTATION_PROCESSOR_MODULE_PATH) &&
fm.hasLocation(StandardLocation.ANNOTATION_PROCESSOR_PATH)) {
log.error(Errors.ProcessorpathNoProcessormodulepath);
}
if (obsoleteOptionFound && lintOptions) {
log.warning(LintCategory.OPTIONS, "option.obsolete.suppression");
}
SourceVersion sv = Source.toSourceVersion(source);
validateAddExports(sv);
validateAddModules(sv);
validateAddReads(sv);
validateLimitModules(sv);
if (lintOptions && options.isSet(Option.ADD_OPENS)) {
log.warning(LintCategory.OPTIONS, Warnings.AddopensIgnored);
}
return !errors && (log.nerrors == 0);
}
private void validateAddExports(SourceVersion sv) {
String addExports = options.get(Option.ADD_EXPORTS);
if (addExports != null) {
// Each entry must be of the form sourceModule/sourcePackage=target-list where
// target-list is a comma separated list of module or ALL-UNNAMED.
// Empty items in the target-list are ignored.
// There must be at least one item in the list; this is handled in Option.ADD_EXPORTS.
Pattern p = Option.ADD_EXPORTS.getPattern();
for (String e : addExports.split("\0")) {
Matcher m = p.matcher(e);
if (m.matches()) {
String sourceModuleName = m.group(1);
if (!SourceVersion.isName(sourceModuleName, sv)) {
// syntactically invalid source name: e.g. --add-exports m!/p1=m2
log.warning(Warnings.BadNameForOption(Option.ADD_EXPORTS, sourceModuleName));
}
String sourcePackageName = m.group(2);
if (!SourceVersion.isName(sourcePackageName, sv)) {
// syntactically invalid source name: e.g. --add-exports m1/p!=m2
log.warning(Warnings.BadNameForOption(Option.ADD_EXPORTS, sourcePackageName));
}
String targetNames = m.group(3);
for (String targetName : targetNames.split(",")) {
switch (targetName) {
case "":
case "ALL-UNNAMED":
break;
default:
if (!SourceVersion.isName(targetName, sv)) {
// syntactically invalid target name: e.g. --add-exports m1/p1=m!
log.warning(Warnings.BadNameForOption(Option.ADD_EXPORTS, targetName));
}
break;
}
}
}
}
}
}
private void validateAddReads(SourceVersion sv) {
String addReads = options.get(Option.ADD_READS);
if (addReads != null) {
// Each entry must be of the form source=target-list where target-list is a
// comma-separated list of module or ALL-UNNAMED.
// Empty items in the target list are ignored.
// There must be at least one item in the list; this is handled in Option.ADD_READS.
Pattern p = Option.ADD_READS.getPattern();
for (String e : addReads.split("\0")) {
Matcher m = p.matcher(e);
if (m.matches()) {
String sourceName = m.group(1);
if (!SourceVersion.isName(sourceName, sv)) {
// syntactically invalid source name: e.g. --add-reads m!=m2
log.warning(Warnings.BadNameForOption(Option.ADD_READS, sourceName));
}
String targetNames = m.group(2);
for (String targetName : targetNames.split(",", -1)) {
switch (targetName) {
case "":
case "ALL-UNNAMED":
break;
default:
if (!SourceVersion.isName(targetName, sv)) {
// syntactically invalid target name: e.g. --add-reads m1=m!
log.warning(Warnings.BadNameForOption(Option.ADD_READS, targetName));
}
break;
}
}
}
}
}
}
private void validateAddModules(SourceVersion sv) {
String addModules = options.get(Option.ADD_MODULES);
if (addModules != null) {
// Each entry must be of the form target-list where target-list is a
// comma separated list of module names, or ALL-DEFAULT, ALL-SYSTEM,
// or ALL-MODULE_PATH.
// Empty items in the target list are ignored.
// There must be at least one item in the list; this is handled in Option.ADD_MODULES.
for (String moduleName : addModules.split(",")) {
switch (moduleName) {
case "":
case "ALL-SYSTEM":
case "ALL-MODULE-PATH":
break;
default:
if (!SourceVersion.isName(moduleName, sv)) {
// syntactically invalid module name: e.g. --add-modules m1,m!
log.error(Errors.BadNameForOption(Option.ADD_MODULES, moduleName));
}
break;
}
}
}
}
private void validateLimitModules(SourceVersion sv) {
String limitModules = options.get(Option.LIMIT_MODULES);
if (limitModules != null) {
// Each entry must be of the form target-list where target-list is a
// comma separated list of module names, or ALL-DEFAULT, ALL-SYSTEM,
// or ALL-MODULE_PATH.
// Empty items in the target list are ignored.
// There must be at least one item in the list; this is handled in Option.LIMIT_EXPORTS.
for (String moduleName : limitModules.split(",")) {
switch (moduleName) {
case "":
break;
default:
if (!SourceVersion.isName(moduleName, sv)) {
// syntactically invalid module name: e.g. --limit-modules m1,m!
log.error(Errors.BadNameForOption(Option.LIMIT_MODULES, moduleName));
}
break;
}
}
}
}
/**
* Returns true if there are no files or classes specified for use.
* @return true if there are no files or classes specified for use
*/
public boolean isEmpty() {
return ((files == null) || files.isEmpty())
&& ((fileObjects == null) || fileObjects.isEmpty())
&& (classNames == null || classNames.isEmpty());
}
public void allowEmpty() {
this.emptyAllowed = true;
}
/**
* Gets the file manager options which may have been deferred
* during processArgs.
* @return the deferred file manager options
*/
public Map<Option, String> getDeferredFileManagerOptions() {
return deferredFileManagerOptions;
}
/**
* Gets any options specifying plugins to be run.
* @return options for plugins
*/
public Set<List<String>> getPluginOpts() {
String plugins = options.get(Option.PLUGIN);
if (plugins == null)
return Collections.emptySet();
Set<List<String>> pluginOpts = new LinkedHashSet<>();
for (String plugin: plugins.split("\\x00")) {
pluginOpts.add(List.from(plugin.split("\\s+")));
}
return Collections.unmodifiableSet(pluginOpts);
}
/**
* Gets any options specifying how doclint should be run.
* An empty list is returned if no doclint options are specified
* or if the only doclint option is -Xdoclint:none.
* @return options for doclint
*/
public List<String> getDocLintOpts() {
String xdoclint = options.get(Option.XDOCLINT);
String xdoclintCustom = options.get(Option.XDOCLINT_CUSTOM);
if (xdoclint == null && xdoclintCustom == null)
return List.nil();
Set<String> doclintOpts = new LinkedHashSet<>();
if (xdoclint != null)
doclintOpts.add(DocLint.XMSGS_OPTION);
if (xdoclintCustom != null) {
for (String s: xdoclintCustom.split("\\s+")) {
if (s.isEmpty())
continue;
doclintOpts.add(DocLint.XMSGS_CUSTOM_PREFIX + s);
}
}
if (doclintOpts.equals(Collections.singleton(DocLint.XMSGS_CUSTOM_PREFIX + "none")))
return List.nil();
String checkPackages = options.get(Option.XDOCLINT_PACKAGE);
if (checkPackages != null) {
for (String s : checkPackages.split("\\s+")) {
doclintOpts.add(DocLint.XCHECK_PACKAGE + s);
}
}
// standard doclet normally generates H1, H2,
// so for now, allow user comments to assume that
doclintOpts.add(DocLint.XIMPLICIT_HEADERS + "2");
return List.from(doclintOpts.toArray(new String[doclintOpts.size()]));
}
private boolean checkDirectory(Option option) {
String value = options.get(option);
if (value == null) {
return true;
}
Path file = Paths.get(value);
if (Files.exists(file) && !Files.isDirectory(file)) {
error("err.file.not.directory", value);
return false;
}
return true;
}
private interface ErrorReporter {
void report(Option o);
}
void checkOptionAllowed(boolean allowed, ErrorReporter r, Option... opts) {
if (!allowed) {
Stream.of(opts)
.filter(options :: isSet)
.forEach(r :: report);
}
}
void error(JCDiagnostic.Error error) {
errors = true;
switch (errorMode) {
case ILLEGAL_ARGUMENT: {
String msg = log.localize(error);
throw new PropagatedException(new IllegalArgumentException(msg));
}
case ILLEGAL_STATE: {
String msg = log.localize(error);
throw new PropagatedException(new IllegalStateException(msg));
}
case LOG:
report(error);
}
}
void error(String key, Object... args) {
errors = true;
switch (errorMode) {
case ILLEGAL_ARGUMENT: {
String msg = log.localize(PrefixKind.JAVAC, key, args);
throw new PropagatedException(new IllegalArgumentException(msg));
}
case ILLEGAL_STATE: {
String msg = log.localize(PrefixKind.JAVAC, key, args);
throw new PropagatedException(new IllegalStateException(msg));
}
case LOG:
report(key, args);
}
}
void error(Option.InvalidValueException f) {
String msg = f.getMessage();
errors = true;
switch (errorMode) {
case ILLEGAL_ARGUMENT: {
throw new PropagatedException(new IllegalArgumentException(msg, f.getCause()));
}
case ILLEGAL_STATE: {
throw new PropagatedException(new IllegalStateException(msg, f.getCause()));
}
case LOG:
log.printRawLines(ownName + ": " + msg);
}
}
void warning(String key, Object... args) {
report(key, args);
}
private void report(String key, Object... args) {
// Would be good to have support for -XDrawDiagnostics here
log.printRawLines(ownName + ": " + log.localize(PrefixKind.JAVAC, key, args));
}
private void report(JCDiagnostic.Error error) {
// Would be good to have support for -XDrawDiagnostics here
log.printRawLines(ownName + ": " + log.localize(error));
}
private JavaFileManager getFileManager() {
if (fileManager == null)
fileManager = context.get(JavaFileManager.class);
return fileManager;
}
<T> ListBuffer<T> toList(Iterable<? extends T> items) {
ListBuffer<T> list = new ListBuffer<>();
if (items != null) {
for (T item : items) {
list.add(item);
}
}
return list;
}
<T> Set<T> toSet(Iterable<? extends T> items) {
Set<T> set = new LinkedHashSet<>();
if (items != null) {
for (T item : items) {
set.add(item);
}
}
return set;
}
}