src/share/classes/com/sun/tools/javac/main/Option.java

Mon, 26 Mar 2012 15:28:49 +0100

author
mcimadamore
date
Mon, 26 Mar 2012 15:28:49 +0100
changeset 1239
2827076dbf64
parent 1230
b14d9583ce92
child 1416
c0f0c41cafa0
permissions
-rw-r--r--

7133185: Update 292 overload resolution logic to match JLS
Summary: Re-implement special overload resolution support for method handles according to the JLS SE 7 definition
Reviewed-by: jjg, dlsmith, jrose

     1 /*
     2  * Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Oracle in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22  * or visit www.oracle.com if you need additional information or have any
    23  * questions.
    24  */
    26 package com.sun.tools.javac.main;
    28 import java.util.Collections;
    29 import com.sun.tools.javac.util.Log.PrefixKind;
    30 import com.sun.tools.javac.util.Log.WriterKind;
    31 import com.sun.tools.javac.util.Log;
    32 import com.sun.tools.javac.code.Lint;
    33 import com.sun.tools.javac.code.Source;
    34 import com.sun.tools.javac.code.Type;
    35 import com.sun.tools.javac.jvm.Target;
    36 import com.sun.tools.javac.util.Options;
    37 import com.sun.tools.javac.processing.JavacProcessingEnvironment;
    38 import java.io.File;
    39 import java.io.FileWriter;
    40 import java.io.PrintWriter;
    41 import java.util.EnumSet;
    42 import java.util.LinkedHashMap;
    43 import java.util.Map;
    44 import java.util.Set;
    45 import javax.lang.model.SourceVersion;
    47 import static com.sun.tools.javac.main.Option.ChoiceKind.*;
    48 import static com.sun.tools.javac.main.Option.OptionKind.*;
    49 import static com.sun.tools.javac.main.Option.OptionGroup.*;
    51 /**
    52  * Options for javac. The specific Option to handle a command-line option
    53  * is identified by searching the members of this enum in order, looking
    54  * the first {@link #matches match}. The action for an Option is performed
    55  * by calling {@link #process process}, and by providing a suitable
    56  * {@link OptionHelper} to provide access the compiler state.
    57  *
    58  * <p><b>This is NOT part of any supported API.
    59  * If you write code that depends on this, you do so at your own
    60  * risk.  This code and its internal interfaces are subject to change
    61  * or deletion without notice.</b></p>
    62  */
    63 public enum Option {
    64     G("-g", "opt.g", STANDARD, BASIC),
    66     G_NONE("-g:none", "opt.g.none", STANDARD, BASIC) {
    67         @Override
    68         public boolean process(OptionHelper helper, String option) {
    69             helper.put("-g:", "none");
    70             return false;
    71         }
    72     },
    74     G_CUSTOM("-g:",  "opt.g.lines.vars.source",
    75             STANDARD, BASIC, ANYOF, "lines", "vars", "source"),
    77     XLINT("-Xlint", "opt.Xlint", EXTENDED, BASIC),
    79     XLINT_CUSTOM("-Xlint:", "opt.Xlint.suboptlist",
    80             EXTENDED,   BASIC, ANYOF, getXLintChoices()),
    82     // -nowarn is retained for command-line backward compatibility
    83     NOWARN("-nowarn", "opt.nowarn", STANDARD, BASIC) {
    84         @Override
    85         public boolean process(OptionHelper helper, String option) {
    86             helper.put("-Xlint:none", option);
    87             return false;
    88         }
    89     },
    91     VERBOSE("-verbose", "opt.verbose", STANDARD, BASIC),
    93     // -deprecation is retained for command-line backward compatibility
    94     DEPRECATION("-deprecation", "opt.deprecation", STANDARD, BASIC) {
    95         @Override
    96         public boolean process(OptionHelper helper, String option) {
    97             helper.put("-Xlint:deprecation", option);
    98             return false;
    99         }
   100     },
   102     CLASSPATH("-classpath", "opt.arg.path", "opt.classpath", STANDARD, FILEMANAGER),
   104     CP("-cp", "opt.arg.path", "opt.classpath", STANDARD, FILEMANAGER) {
   105         @Override
   106         public boolean process(OptionHelper helper, String option, String arg) {
   107             return super.process(helper, "-classpath", arg);
   108         }
   109     },
   111     SOURCEPATH("-sourcepath", "opt.arg.path", "opt.sourcepath", STANDARD, FILEMANAGER),
   113     BOOTCLASSPATH("-bootclasspath", "opt.arg.path", "opt.bootclasspath", STANDARD, FILEMANAGER) {
   114         @Override
   115         public boolean process(OptionHelper helper, String option, String arg) {
   116             helper.remove("-Xbootclasspath/p:");
   117             helper.remove("-Xbootclasspath/a:");
   118             return super.process(helper, option, arg);
   119         }
   120     },
   122     XBOOTCLASSPATH_PREPEND("-Xbootclasspath/p:", "opt.arg.path", "opt.Xbootclasspath.p", EXTENDED, FILEMANAGER),
   124     XBOOTCLASSPATH_APPEND("-Xbootclasspath/a:", "opt.arg.path", "opt.Xbootclasspath.a", EXTENDED, FILEMANAGER),
   126     XBOOTCLASSPATH("-Xbootclasspath:", "opt.arg.path", "opt.bootclasspath", EXTENDED, FILEMANAGER) {
   127         @Override
   128         public boolean process(OptionHelper helper, String option, String arg) {
   129             helper.remove("-Xbootclasspath/p:");
   130             helper.remove("-Xbootclasspath/a:");
   131             return super.process(helper, "-bootclasspath", arg);
   132         }
   133     },
   135     EXTDIRS("-extdirs", "opt.arg.dirs", "opt.extdirs", STANDARD, FILEMANAGER),
   137     DJAVA_EXT_DIRS("-Djava.ext.dirs=", "opt.arg.dirs", "opt.extdirs", EXTENDED, FILEMANAGER) {
   138         @Override
   139         public boolean process(OptionHelper helper, String option, String arg) {
   140             return super.process(helper, "-extdirs", arg);
   141         }
   142     },
   144     ENDORSEDDIRS("-endorseddirs", "opt.arg.dirs", "opt.endorseddirs", STANDARD, FILEMANAGER),
   146     DJAVA_ENDORSED_DIRS("-Djava.endorsed.dirs=", "opt.arg.dirs", "opt.endorseddirs", EXTENDED, FILEMANAGER) {
   147         @Override
   148         public boolean process(OptionHelper helper, String option, String arg) {
   149             return super.process(helper, "-endorseddirs", arg);
   150         }
   151     },
   153     PROC("-proc:", "opt.proc.none.only", STANDARD, BASIC,  ONEOF, "none", "only"),
   155     PROCESSOR("-processor", "opt.arg.class.list", "opt.processor", STANDARD, BASIC),
   157     PROCESSORPATH("-processorpath", "opt.arg.path", "opt.processorpath", STANDARD, FILEMANAGER),
   159     D("-d", "opt.arg.directory", "opt.d", STANDARD, FILEMANAGER),
   161     S("-s", "opt.arg.directory", "opt.sourceDest", STANDARD, FILEMANAGER),
   163     H("-h", "opt.arg.directory", "opt.headerDest", STANDARD, FILEMANAGER),
   165     IMPLICIT("-implicit:", "opt.implicit", STANDARD, BASIC, ONEOF, "none", "class"),
   167     ENCODING("-encoding", "opt.arg.encoding", "opt.encoding", STANDARD, FILEMANAGER) {
   168         @Override
   169         public boolean process(OptionHelper helper, String option, String operand) {
   170 //            System.err.println("process encoding " + operand);
   171             return super.process(helper, option, operand);
   172         }
   174     },
   176     SOURCE("-source", "opt.arg.release", "opt.source", STANDARD, BASIC) {
   177         @Override
   178         public boolean process(OptionHelper helper, String option, String operand) {
   179             Source source = Source.lookup(operand);
   180             if (source == null) {
   181                 helper.error("err.invalid.source", operand);
   182                 return true;
   183             }
   184             return super.process(helper, option, operand);
   185         }
   186     },
   188     TARGET("-target", "opt.arg.release", "opt.target", STANDARD, BASIC) {
   189         @Override
   190         public boolean process(OptionHelper helper, String option, String operand) {
   191             Target target = Target.lookup(operand);
   192             if (target == null) {
   193                 helper.error("err.invalid.target", operand);
   194                 return true;
   195             }
   196             return super.process(helper, option, operand);
   197         }
   198     },
   200     VERSION("-version", "opt.version", STANDARD, INFO) {
   201         @Override
   202         public boolean process(OptionHelper helper, String option) {
   203             Log log = helper.getLog();
   204             String ownName = helper.getOwnName();
   205             log.printLines(PrefixKind.JAVAC, "version", ownName,  JavaCompiler.version());
   206             return super.process(helper, option);
   207         }
   208     },
   210     FULLVERSION("-fullversion", null, HIDDEN, INFO) {
   211         @Override
   212         public boolean process(OptionHelper helper, String option) {
   213             Log log = helper.getLog();
   214             String ownName = helper.getOwnName();
   215             log.printLines(PrefixKind.JAVAC, "fullVersion", ownName,  JavaCompiler.fullVersion());
   216             return super.process(helper, option);
   217         }
   218     },
   220     DIAGS("-XDdiags=", null, HIDDEN, INFO) {
   221         @Override
   222         public boolean process(OptionHelper helper, String option) {
   223             option = option.substring(option.indexOf('=') + 1);
   224             String diagsOption = option.contains("%") ?
   225                 "-XDdiagsFormat=" :
   226                 "-XDdiags=";
   227             diagsOption += option;
   228             if (XD.matches(diagsOption))
   229                 return XD.process(helper, diagsOption);
   230             else
   231                 return false;
   232         }
   233     },
   235     HELP("-help", "opt.help", STANDARD, INFO) {
   236         @Override
   237         public boolean process(OptionHelper helper, String option) {
   238             Log log = helper.getLog();
   239             String ownName = helper.getOwnName();
   240             log.printLines(PrefixKind.JAVAC, "msg.usage.header", ownName);
   241             for (Option o: getJavaCompilerOptions()) {
   242                 o.help(log, OptionKind.STANDARD);
   243             }
   244             log.printNewline();
   245             return super.process(helper, option);
   246         }
   247     },
   249     A("-A", "opt.arg.key.equals.value", "opt.A", STANDARD, BASIC) {
   250         { hasSuffix = true; }
   252         @Override
   253         public boolean matches(String arg) {
   254             return arg.startsWith("-A");
   255         }
   257         @Override
   258         public boolean hasArg() {
   259             return false;
   260         }
   261         // Mapping for processor options created in
   262         // JavacProcessingEnvironment
   263         @Override
   264         public boolean process(OptionHelper helper, String option) {
   265             int argLength = option.length();
   266             if (argLength == 2) {
   267                 helper.error("err.empty.A.argument");
   268                 return true;
   269             }
   270             int sepIndex = option.indexOf('=');
   271             String key = option.substring(2, (sepIndex != -1 ? sepIndex : argLength) );
   272             if (!JavacProcessingEnvironment.isValidOptionName(key)) {
   273                 helper.error("err.invalid.A.key", option);
   274                 return true;
   275             }
   276             return process(helper, option, option);
   277         }
   278     },
   280     X("-X", "opt.X", STANDARD, INFO) {
   281         @Override
   282         public boolean process(OptionHelper helper, String option) {
   283             Log log = helper.getLog();
   284             for (Option o: getJavaCompilerOptions()) {
   285                 o.help(log, OptionKind.EXTENDED);
   286             }
   287             log.printNewline();
   288             log.printLines(PrefixKind.JAVAC, "msg.usage.nonstandard.footer");
   289             return super.process(helper, option);
   290         }
   291     },
   293     // This option exists only for the purpose of documenting itself.
   294     // It's actually implemented by the launcher.
   295     J("-J", "opt.arg.flag", "opt.J", STANDARD, INFO) {
   296         { hasSuffix = true; }
   298         @Override
   299         public boolean process(OptionHelper helper, String option) {
   300             throw new AssertionError
   301                 ("the -J flag should be caught by the launcher.");
   302         }
   303     },
   305     // stop after parsing and attributing.
   306     // new HiddenOption("-attrparseonly"),
   308     // new Option("-moreinfo",                                      "opt.moreinfo") {
   309     MOREINFO("-moreinfo", null, HIDDEN, BASIC) {
   310         @Override
   311         public boolean process(OptionHelper helper, String option) {
   312             Type.moreInfo = true;
   313             return super.process(helper, option);
   314         }
   315     },
   317     // treat warnings as errors
   318     WERROR("-Werror", "opt.Werror", STANDARD, BASIC),
   320 //    // use complex inference from context in the position of a method call argument
   321 //    COMPLEXINFERENCE("-complexinference", null, HIDDEN, BASIC),
   323     // generare source stubs
   324     // new HiddenOption("-stubs"),
   326     // relax some constraints to allow compiling from stubs
   327     // new HiddenOption("-relax"),
   329     // output source after translating away inner classes
   330     // new Option("-printflat",                             "opt.printflat"),
   331     // new HiddenOption("-printflat"),
   333     // display scope search details
   334     // new Option("-printsearch",                           "opt.printsearch"),
   335     // new HiddenOption("-printsearch"),
   337     // prompt after each error
   338     // new Option("-prompt",                                        "opt.prompt"),
   339     PROMPT("-prompt", null, HIDDEN, BASIC),
   341     // dump stack on error
   342     DOE("-doe", null, HIDDEN, BASIC),
   344     // output source after type erasure
   345     // new Option("-s",                                     "opt.s"),
   346     PRINTSOURCE("-printsource", null, HIDDEN, BASIC),
   348     // output shrouded class files
   349     // new Option("-scramble",                              "opt.scramble"),
   350     // new Option("-scrambleall",                           "opt.scrambleall"),
   352     // display warnings for generic unchecked operations
   353     WARNUNCHECKED("-warnunchecked", null, HIDDEN, BASIC) {
   354         @Override
   355         public boolean process(OptionHelper helper, String option) {
   356             helper.put("-Xlint:unchecked", option);
   357             return false;
   358         }
   359     },
   361     XMAXERRS("-Xmaxerrs", "opt.arg.number", "opt.maxerrs", EXTENDED, BASIC),
   363     XMAXWARNS("-Xmaxwarns", "opt.arg.number", "opt.maxwarns", EXTENDED, BASIC),
   365     XSTDOUT("-Xstdout", "opt.arg.file", "opt.Xstdout", EXTENDED, INFO) {
   366         @Override
   367         public boolean process(OptionHelper helper, String option, String arg) {
   368             try {
   369                 Log log = helper.getLog();
   370                 // TODO: this file should be closed at the end of compilation
   371                 log.setWriters(new PrintWriter(new FileWriter(arg), true));
   372             } catch (java.io.IOException e) {
   373                 helper.error("err.error.writing.file", arg, e);
   374                 return true;
   375             }
   376             return super.process(helper, option, arg);
   377         }
   378     },
   380     XPRINT("-Xprint", "opt.print", EXTENDED, BASIC),
   382     XPRINTROUNDS("-XprintRounds", "opt.printRounds", EXTENDED, BASIC),
   384     XPRINTPROCESSORINFO("-XprintProcessorInfo", "opt.printProcessorInfo", EXTENDED, BASIC),
   386     XPREFER("-Xprefer:", "opt.prefer", EXTENDED, BASIC, ONEOF, "source", "newer"),
   388     XPKGINFO("-Xpkginfo:", "opt.pkginfo", EXTENDED, BASIC, ONEOF, "always", "legacy", "nonempty"),
   390     /* -O is a no-op, accepted for backward compatibility. */
   391     O("-O", null, HIDDEN, BASIC),
   393     /* -Xjcov produces tables to support the code coverage tool jcov. */
   394     XJCOV("-Xjcov", null, HIDDEN, BASIC),
   396     /* This is a back door to the compiler's option table.
   397      * -XDx=y sets the option x to the value y.
   398      * -XDx sets the option x to the value x.
   399      */
   400     XD("-XD", null, HIDDEN, BASIC) {
   401         String s;
   402         @Override
   403         public boolean matches(String s) {
   404             this.s = s;
   405             return s.startsWith(text);
   406         }
   407         @Override
   408         public boolean process(OptionHelper helper, String option) {
   409             s = s.substring(text.length());
   410             int eq = s.indexOf('=');
   411             String key = (eq < 0) ? s : s.substring(0, eq);
   412             String value = (eq < 0) ? s : s.substring(eq+1);
   413             helper.put(key, value);
   414             return false;
   415         }
   416     },
   418     // This option exists only for the purpose of documenting itself.
   419     // It's actually implemented by the CommandLine class.
   420     AT("@", "opt.arg.file", "opt.AT", STANDARD, INFO) {
   421         { hasSuffix = true; }
   423         @Override
   424         public boolean process(OptionHelper helper, String option) {
   425             throw new AssertionError("the @ flag should be caught by CommandLine.");
   426         }
   427     },
   429     /*
   430      * TODO: With apt, the matches method accepts anything if
   431      * -XclassAsDecls is used; code elsewhere does the lookup to
   432      * see if the class name is both legal and found.
   433      *
   434      * In apt, the process method adds the candidate class file
   435      * name to a separate list.
   436      */
   437     SOURCEFILE("sourcefile", null, HIDDEN, INFO) {
   438         String s;
   439         @Override
   440         public boolean matches(String s) {
   441             this.s = s;
   442             return s.endsWith(".java")  // Java source file
   443                 || SourceVersion.isName(s);   // Legal type name
   444         }
   445         @Override
   446         public boolean process(OptionHelper helper, String option) {
   447             if (s.endsWith(".java") ) {
   448                 File f = new File(s);
   449                 if (!f.exists()) {
   450                     helper.error("err.file.not.found", f);
   451                     return true;
   452                 }
   453                 if (!f.isFile()) {
   454                     helper.error("err.file.not.file", f);
   455                     return true;
   456                 }
   457                 helper.addFile(f);
   458             }
   459             else
   460                 helper.addClassName(s);
   461             return false;
   462         }
   463     };
   465     /** The kind of an Option. This is used by the -help and -X options. */
   466     public enum OptionKind {
   467         /** A standard option, documented by -help. */
   468         STANDARD,
   469         /** An extended option, documented by -X. */
   470         EXTENDED,
   471         /** A hidden option, not documented. */
   472         HIDDEN,
   473     }
   475     /** The group for an Option. This determines the situations in which the
   476      *  option is applicable. */
   477     enum OptionGroup {
   478         /** A basic option, available for use on the command line or via the
   479          *  Compiler API. */
   480         BASIC,
   481         /** An option for javac's standard JavaFileManager. Other file managers
   482          *  may or may not support these options. */
   483         FILEMANAGER,
   484         /** A command-line option that requests information, such as -help. */
   485         INFO,
   486         /** A command-line "option" representing a file or class name. */
   487         OPERAND
   488     }
   490     /** The kind of choice for "choice" options. */
   491     enum ChoiceKind {
   492         /** The expected value is exactly one of the set of choices. */
   493         ONEOF,
   494         /** The expected value is one of more of the set of choices. */
   495         ANYOF
   496     }
   498     public final String text;
   500     final OptionKind kind;
   502     final OptionGroup group;
   504     /** Documentation key for arguments.
   505      */
   506     final String argsNameKey;
   508     /** Documentation key for description.
   509      */
   510     final String descrKey;
   512     /** Suffix option (-foo=bar or -foo:bar)
   513      */
   514     boolean hasSuffix;
   516     /** The kind of choices for this option, if any.
   517      */
   518     final ChoiceKind choiceKind;
   520     /** The choices for this option, if any, and whether or not the choices
   521      *  are hidden
   522      */
   523     final Map<String,Boolean> choices;
   526     Option(String text, String descrKey,
   527             OptionKind kind, OptionGroup group) {
   528         this(text, null, descrKey, kind, group, null, null);
   529     }
   531     Option(String text, String argsNameKey, String descrKey,
   532             OptionKind kind, OptionGroup group) {
   533         this(text, argsNameKey, descrKey, kind, group, null, null);
   534     }
   536     Option(String text, String descrKey,
   537             OptionKind kind, OptionGroup group,
   538             ChoiceKind choiceKind, Map<String,Boolean> choices) {
   539         this(text, null, descrKey, kind, group, choiceKind, choices);
   540     }
   542     Option(String text, String descrKey,
   543             OptionKind kind, OptionGroup group,
   544             ChoiceKind choiceKind, String... choices) {
   545         this(text, null, descrKey, kind, group, choiceKind, createChoices(choices));
   546     }
   547     // where
   548         private static Map<String,Boolean> createChoices(String... choices) {
   549             Map<String,Boolean> map = new LinkedHashMap<String,Boolean>();
   550             for (String c: choices)
   551                 map.put(c, false);
   552             return map;
   553         }
   555     private Option(String text, String argsNameKey, String descrKey,
   556             OptionKind kind, OptionGroup group,
   557             ChoiceKind choiceKind, Map<String,Boolean> choices) {
   558         this.text = text;
   559         this.argsNameKey = argsNameKey;
   560         this.descrKey = descrKey;
   561         this.kind = kind;
   562         this.group = group;
   563         this.choiceKind = choiceKind;
   564         this.choices = choices;
   565         char lastChar = text.charAt(text.length()-1);
   566         hasSuffix = lastChar == ':' || lastChar == '=';
   567     }
   569     public String getText() {
   570         return text;
   571     }
   573     public OptionKind getKind() {
   574         return kind;
   575     }
   577     public boolean hasArg() {
   578         return argsNameKey != null && !hasSuffix;
   579     }
   581     public boolean matches(String option) {
   582         if (!hasSuffix)
   583             return option.equals(text);
   585         if (!option.startsWith(text))
   586             return false;
   588         if (choices != null) {
   589             String arg = option.substring(text.length());
   590             if (choiceKind == ChoiceKind.ONEOF)
   591                 return choices.keySet().contains(arg);
   592             else {
   593                 for (String a: arg.split(",+")) {
   594                     if (!choices.keySet().contains(a))
   595                         return false;
   596                 }
   597             }
   598         }
   600         return true;
   601     }
   603     public boolean process(OptionHelper helper, String option, String arg) {
   604         if (choices != null) {
   605             if (choiceKind == ChoiceKind.ONEOF) {
   606                 // some clients like to see just one of option+choice set
   607                 for (String s: choices.keySet())
   608                     helper.remove(option + s);
   609                 String opt = option + arg;
   610                 helper.put(opt, opt);
   611                 // some clients like to see option (without trailing ":")
   612                 // set to arg
   613                 String nm = option.substring(0, option.length() - 1);
   614                 helper.put(nm, arg);
   615             } else {
   616                 // set option+word for each word in arg
   617                 for (String a: arg.split(",+")) {
   618                     String opt = option + a;
   619                     helper.put(opt, opt);
   620                 }
   621             }
   622         }
   623         helper.put(option, arg);
   624         return false;
   625     }
   627     public boolean process(OptionHelper helper, String option) {
   628         if (hasSuffix)
   629             return process(helper, text, option.substring(text.length()));
   630         else
   631             return process(helper, option, option);
   632     }
   634     void help(Log log, OptionKind kind) {
   635         if (this.kind != kind)
   636             return;
   638         log.printRawLines(WriterKind.NOTICE,
   639                 String.format("  %-26s %s",
   640                     helpSynopsis(log),
   641                     log.localize(PrefixKind.JAVAC, descrKey)));
   643     }
   645     private String helpSynopsis(Log log) {
   646         StringBuilder sb = new StringBuilder();
   647         sb.append(text);
   648         if (argsNameKey == null) {
   649             if (choices != null) {
   650                 String sep = "{";
   651                 for (Map.Entry<String,Boolean> e: choices.entrySet()) {
   652                     if (!e.getValue()) {
   653                         sb.append(sep);
   654                         sb.append(e.getKey());
   655                         sep = ",";
   656                     }
   657                 }
   658                 sb.append("}");
   659             }
   660         } else {
   661             if (!hasSuffix)
   662                 sb.append(" ");
   663             sb.append(log.localize(PrefixKind.JAVAC, argsNameKey));
   665         }
   667         return sb.toString();
   668     }
   670     // For -XpkgInfo:value
   671     public enum PkgInfo {
   672         ALWAYS, LEGACY, NONEMPTY;
   673         public static PkgInfo get(Options options) {
   674             String v = options.get(XPKGINFO);
   675             return (v == null
   676                     ? PkgInfo.LEGACY
   677                     : PkgInfo.valueOf(v.toUpperCase()));
   678         }
   679     }
   681     private static Map<String,Boolean> getXLintChoices() {
   682         Map<String,Boolean> choices = new LinkedHashMap<String,Boolean>();
   683         choices.put("all", false);
   684         for (Lint.LintCategory c : Lint.LintCategory.values())
   685             choices.put(c.option, c.hidden);
   686         for (Lint.LintCategory c : Lint.LintCategory.values())
   687             choices.put("-" + c.option, c.hidden);
   688         choices.put("none", false);
   689         return choices;
   690     }
   692     static Set<Option> getJavaCompilerOptions() {
   693         return EnumSet.allOf(Option.class);
   694     }
   696     public static Set<Option> getJavacFileManagerOptions() {
   697         return getOptions(EnumSet.of(FILEMANAGER));
   698     }
   700     public static Set<Option> getJavacToolOptions() {
   701         return getOptions(EnumSet.of(BASIC));
   702     }
   704     static Set<Option> getOptions(Set<OptionGroup> desired) {
   705         Set<Option> options = EnumSet.noneOf(Option.class);
   706         for (Option option : Option.values())
   707             if (desired.contains(option.group))
   708                 options.add(option);
   709         return Collections.unmodifiableSet(options);
   710     }
   712 }

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