1 /*
   2  * Copyright (c) 2006, 2013, 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  */
  25 
  26 package com.sun.tools.javac.main;
  27 
  28 import java.io.File;
  29 import java.io.FileWriter;
  30 import java.io.PrintWriter;
  31 import java.util.Collections;
  32 import java.util.EnumSet;
  33 import java.util.LinkedHashMap;
  34 import java.util.Map;
  35 import java.util.Set;
  36 
  37 import javax.lang.model.SourceVersion;
  38 
  39 import com.sun.tools.doclint.DocLint;
  40 import com.sun.tools.javac.code.Lint;
  41 import com.sun.tools.javac.code.Source;
  42 import com.sun.tools.javac.code.Type;
  43 import com.sun.tools.javac.jvm.Target;
  44 import com.sun.tools.javac.processing.JavacProcessingEnvironment;
  45 import com.sun.tools.javac.util.Log;
  46 import com.sun.tools.javac.util.Log.PrefixKind;
  47 import com.sun.tools.javac.util.Log.WriterKind;
  48 import com.sun.tools.javac.util.Options;
  49 import static com.sun.tools.javac.main.Option.ChoiceKind.*;
  50 import static com.sun.tools.javac.main.Option.OptionGroup.*;
  51 import static com.sun.tools.javac.main.Option.OptionKind.*;
  52 
  53 /**
  54  * Options for javac. The specific Option to handle a command-line option
  55  * is identified by searching the members of this enum in order, looking
  56  * the first {@link #matches match}. The action for an Option is performed
  57  * by calling {@link #process process}, and by providing a suitable
  58  * {@link OptionHelper} to provide access the compiler state.
  59  *
  60  * <p><b>This is NOT part of any supported API.
  61  * If you write code that depends on this, you do so at your own
  62  * risk.  This code and its internal interfaces are subject to change
  63  * or deletion without notice.</b></p>
  64  */
  65 public enum Option {
  66     G("-g", "opt.g", STANDARD, BASIC),
  67 
  68     G_NONE("-g:none", "opt.g.none", STANDARD, BASIC) {
  69         @Override
  70         public boolean process(OptionHelper helper, String option) {
  71             helper.put("-g:", "none");
  72             return false;
  73         }
  74     },
  75 
  76     G_CUSTOM("-g:",  "opt.g.lines.vars.source",
  77             STANDARD, BASIC, ANYOF, "lines", "vars", "source"),
  78 
  79     XLINT("-Xlint", "opt.Xlint", EXTENDED, BASIC),
  80 
  81     XLINT_CUSTOM("-Xlint:", "opt.Xlint.suboptlist",
  82             EXTENDED,   BASIC, ANYOF, getXLintChoices()),
  83 
  84     XDOCLINT("-Xdoclint", "opt.Xdoclint", EXTENDED, BASIC),
  85 
  86     XDOCLINT_CUSTOM("-Xdoclint:", "opt.Xdoclint.subopts", "opt.Xdoclint.custom", EXTENDED, BASIC) {
  87         @Override
  88         public boolean matches(String option) {
  89             return DocLint.isValidOption(
  90                     option.replace(XDOCLINT_CUSTOM.text, DocLint.XMSGS_CUSTOM_PREFIX));
  91         }
  92 
  93         @Override
  94         public boolean process(OptionHelper helper, String option) {
  95             String prev = helper.get(XDOCLINT_CUSTOM);
  96             String next = (prev == null) ? option : (prev + " " + option);
  97             helper.put(XDOCLINT_CUSTOM.text, next);
  98             return false;
  99         }
 100     },
 101 
 102     // -nowarn is retained for command-line backward compatibility
 103     NOWARN("-nowarn", "opt.nowarn", STANDARD, BASIC) {
 104         @Override
 105         public boolean process(OptionHelper helper, String option) {
 106             helper.put("-Xlint:none", option);
 107             return false;
 108         }
 109     },
 110 
 111     VERBOSE("-verbose", "opt.verbose", STANDARD, BASIC),
 112 
 113     // -deprecation is retained for command-line backward compatibility
 114     DEPRECATION("-deprecation", "opt.deprecation", STANDARD, BASIC) {
 115         @Override
 116         public boolean process(OptionHelper helper, String option) {
 117             helper.put("-Xlint:deprecation", option);
 118             return false;
 119         }
 120     },
 121 
 122     CLASSPATH("-classpath", "opt.arg.path", "opt.classpath", STANDARD, FILEMANAGER),
 123 
 124     CP("-cp", "opt.arg.path", "opt.classpath", STANDARD, FILEMANAGER) {
 125         @Override
 126         public boolean process(OptionHelper helper, String option, String arg) {
 127             return super.process(helper, "-classpath", arg);
 128         }
 129     },
 130 
 131     SOURCEPATH("-sourcepath", "opt.arg.path", "opt.sourcepath", STANDARD, FILEMANAGER),
 132 
 133     BOOTCLASSPATH("-bootclasspath", "opt.arg.path", "opt.bootclasspath", STANDARD, FILEMANAGER) {
 134         @Override
 135         public boolean process(OptionHelper helper, String option, String arg) {
 136             helper.remove("-Xbootclasspath/p:");
 137             helper.remove("-Xbootclasspath/a:");
 138             return super.process(helper, option, arg);
 139         }
 140     },
 141 
 142     XBOOTCLASSPATH_PREPEND("-Xbootclasspath/p:", "opt.arg.path", "opt.Xbootclasspath.p", EXTENDED, FILEMANAGER),
 143 
 144     XBOOTCLASSPATH_APPEND("-Xbootclasspath/a:", "opt.arg.path", "opt.Xbootclasspath.a", EXTENDED, FILEMANAGER),
 145 
 146     XBOOTCLASSPATH("-Xbootclasspath:", "opt.arg.path", "opt.bootclasspath", EXTENDED, FILEMANAGER) {
 147         @Override
 148         public boolean process(OptionHelper helper, String option, String arg) {
 149             helper.remove("-Xbootclasspath/p:");
 150             helper.remove("-Xbootclasspath/a:");
 151             return super.process(helper, "-bootclasspath", arg);
 152         }
 153     },
 154 
 155     EXTDIRS("-extdirs", "opt.arg.dirs", "opt.extdirs", STANDARD, FILEMANAGER),
 156 
 157     DJAVA_EXT_DIRS("-Djava.ext.dirs=", "opt.arg.dirs", "opt.extdirs", EXTENDED, FILEMANAGER) {
 158         @Override
 159         public boolean process(OptionHelper helper, String option, String arg) {
 160             return super.process(helper, "-extdirs", arg);
 161         }
 162     },
 163 
 164     ENDORSEDDIRS("-endorseddirs", "opt.arg.dirs", "opt.endorseddirs", STANDARD, FILEMANAGER),
 165 
 166     DJAVA_ENDORSED_DIRS("-Djava.endorsed.dirs=", "opt.arg.dirs", "opt.endorseddirs", EXTENDED, FILEMANAGER) {
 167         @Override
 168         public boolean process(OptionHelper helper, String option, String arg) {
 169             return super.process(helper, "-endorseddirs", arg);
 170         }
 171     },
 172 
 173     PROC("-proc:", "opt.proc.none.only", STANDARD, BASIC,  ONEOF, "none", "only"),
 174 
 175     PROCESSOR("-processor", "opt.arg.class.list", "opt.processor", STANDARD, BASIC),
 176 
 177     PROCESSORPATH("-processorpath", "opt.arg.path", "opt.processorpath", STANDARD, FILEMANAGER),
 178 
 179     PARAMETERS("-parameters","opt.parameters", STANDARD, BASIC),
 180 
 181     D("-d", "opt.arg.directory", "opt.d", STANDARD, FILEMANAGER),
 182 
 183     S("-s", "opt.arg.directory", "opt.sourceDest", STANDARD, FILEMANAGER),
 184 
 185     H("-h", "opt.arg.directory", "opt.headerDest", STANDARD, FILEMANAGER),
 186 
 187     IMPLICIT("-implicit:", "opt.implicit", STANDARD, BASIC, ONEOF, "none", "class"),
 188 
 189     ENCODING("-encoding", "opt.arg.encoding", "opt.encoding", STANDARD, FILEMANAGER) {
 190         @Override
 191         public boolean process(OptionHelper helper, String option, String operand) {
 192             return super.process(helper, option, operand);
 193         }
 194 
 195     },
 196 
 197     SOURCE("-source", "opt.arg.release", "opt.source", STANDARD, BASIC) {
 198         @Override
 199         public boolean process(OptionHelper helper, String option, String operand) {
 200             Source source = Source.lookup(operand);
 201             if (source == null) {
 202                 helper.error("err.invalid.source", operand);
 203                 return true;
 204             }
 205             return super.process(helper, option, operand);
 206         }
 207     },
 208 
 209     TARGET("-target", "opt.arg.release", "opt.target", STANDARD, BASIC) {
 210         @Override
 211         public boolean process(OptionHelper helper, String option, String operand) {
 212             Target target = Target.lookup(operand);
 213             if (target == null) {
 214                 helper.error("err.invalid.target", operand);
 215                 return true;
 216             }
 217             return super.process(helper, option, operand);
 218         }
 219     },
 220 
 221     VERSION("-version", "opt.version", STANDARD, INFO) {
 222         @Override
 223         public boolean process(OptionHelper helper, String option) {
 224             Log log = helper.getLog();
 225             String ownName = helper.getOwnName();
 226             log.printLines(PrefixKind.JAVAC, "version", ownName,  JavaCompiler.version());
 227             return super.process(helper, option);
 228         }
 229     },
 230 
 231     FULLVERSION("-fullversion", null, HIDDEN, INFO) {
 232         @Override
 233         public boolean process(OptionHelper helper, String option) {
 234             Log log = helper.getLog();
 235             String ownName = helper.getOwnName();
 236             log.printLines(PrefixKind.JAVAC, "fullVersion", ownName,  JavaCompiler.fullVersion());
 237             return super.process(helper, option);
 238         }
 239     },
 240 
 241     DIAGS("-XDdiags=", null, HIDDEN, INFO) {
 242         @Override
 243         public boolean process(OptionHelper helper, String option) {
 244             option = option.substring(option.indexOf('=') + 1);
 245             String diagsOption = option.contains("%") ?
 246                 "-XDdiagsFormat=" :
 247                 "-XDdiags=";
 248             diagsOption += option;
 249             if (XD.matches(diagsOption))
 250                 return XD.process(helper, diagsOption);
 251             else
 252                 return false;
 253         }
 254     },
 255 
 256     HELP("-help", "opt.help", STANDARD, INFO) {
 257         @Override
 258         public boolean process(OptionHelper helper, String option) {
 259             Log log = helper.getLog();
 260             String ownName = helper.getOwnName();
 261             log.printLines(PrefixKind.JAVAC, "msg.usage.header", ownName);
 262             for (Option o: getJavaCompilerOptions()) {
 263                 o.help(log, OptionKind.STANDARD);
 264             }
 265             log.printNewline();
 266             return super.process(helper, option);
 267         }
 268     },
 269 
 270     A("-A", "opt.arg.key.equals.value", "opt.A", STANDARD, BASIC, true) {
 271         @Override
 272         public boolean matches(String arg) {
 273             return arg.startsWith("-A");
 274         }
 275 
 276         @Override
 277         public boolean hasArg() {
 278             return false;
 279         }
 280         // Mapping for processor options created in
 281         // JavacProcessingEnvironment
 282         @Override
 283         public boolean process(OptionHelper helper, String option) {
 284             int argLength = option.length();
 285             if (argLength == 2) {
 286                 helper.error("err.empty.A.argument");
 287                 return true;
 288             }
 289             int sepIndex = option.indexOf('=');
 290             String key = option.substring(2, (sepIndex != -1 ? sepIndex : argLength) );
 291             if (!JavacProcessingEnvironment.isValidOptionName(key)) {
 292                 helper.error("err.invalid.A.key", option);
 293                 return true;
 294             }
 295             return process(helper, option, option);
 296         }
 297     },
 298 
 299     X("-X", "opt.X", STANDARD, INFO) {
 300         @Override
 301         public boolean process(OptionHelper helper, String option) {
 302             Log log = helper.getLog();
 303             for (Option o: getJavaCompilerOptions()) {
 304                 o.help(log, OptionKind.EXTENDED);
 305             }
 306             log.printNewline();
 307             log.printLines(PrefixKind.JAVAC, "msg.usage.nonstandard.footer");
 308             return super.process(helper, option);
 309         }
 310     },
 311 
 312     // This option exists only for the purpose of documenting itself.
 313     // It's actually implemented by the launcher.
 314     J("-J", "opt.arg.flag", "opt.J", STANDARD, INFO, true) {
 315         @Override
 316         public boolean process(OptionHelper helper, String option) {
 317             throw new AssertionError
 318                 ("the -J flag should be caught by the launcher.");
 319         }
 320     },
 321 
 322     MOREINFO("-moreinfo", null, HIDDEN, BASIC) {
 323         @Override
 324         public boolean process(OptionHelper helper, String option) {
 325             Type.moreInfo = true;
 326             return super.process(helper, option);
 327         }
 328     },
 329 
 330     // treat warnings as errors
 331     WERROR("-Werror", "opt.Werror", STANDARD, BASIC),
 332 
 333     // prompt after each error
 334     // new Option("-prompt",                                        "opt.prompt"),
 335     PROMPT("-prompt", null, HIDDEN, BASIC),
 336 
 337     // dump stack on error
 338     DOE("-doe", null, HIDDEN, BASIC),
 339 
 340     // output source after type erasure
 341     PRINTSOURCE("-printsource", null, HIDDEN, BASIC),
 342 
 343     // display warnings for generic unchecked operations
 344     WARNUNCHECKED("-warnunchecked", null, HIDDEN, BASIC) {
 345         @Override
 346         public boolean process(OptionHelper helper, String option) {
 347             helper.put("-Xlint:unchecked", option);
 348             return false;
 349         }
 350     },
 351 
 352     XMAXERRS("-Xmaxerrs", "opt.arg.number", "opt.maxerrs", EXTENDED, BASIC),
 353 
 354     XMAXWARNS("-Xmaxwarns", "opt.arg.number", "opt.maxwarns", EXTENDED, BASIC),
 355 
 356     XSTDOUT("-Xstdout", "opt.arg.file", "opt.Xstdout", EXTENDED, INFO) {
 357         @Override
 358         public boolean process(OptionHelper helper, String option, String arg) {
 359             try {
 360                 Log log = helper.getLog();
 361                 // TODO: this file should be closed at the end of compilation
 362                 log.setWriters(new PrintWriter(new FileWriter(arg), true));
 363             } catch (java.io.IOException e) {
 364                 helper.error("err.error.writing.file", arg, e);
 365                 return true;
 366             }
 367             return super.process(helper, option, arg);
 368         }
 369     },
 370 
 371     XPRINT("-Xprint", "opt.print", EXTENDED, BASIC),
 372 
 373     XPRINTROUNDS("-XprintRounds", "opt.printRounds", EXTENDED, BASIC),
 374 
 375     XPRINTPROCESSORINFO("-XprintProcessorInfo", "opt.printProcessorInfo", EXTENDED, BASIC),
 376 
 377     XPREFER("-Xprefer:", "opt.prefer", EXTENDED, BASIC, ONEOF, "source", "newer"),
 378 
 379     XPKGINFO("-Xpkginfo:", "opt.pkginfo", EXTENDED, BASIC, ONEOF, "always", "legacy", "nonempty"),
 380 
 381     /* -O is a no-op, accepted for backward compatibility. */
 382     O("-O", null, HIDDEN, BASIC),
 383 
 384     /* -Xjcov produces tables to support the code coverage tool jcov. */
 385     XJCOV("-Xjcov", null, HIDDEN, BASIC),
 386 
 387     PLUGIN("-Xplugin:", "opt.arg.plugin", "opt.plugin", EXTENDED, BASIC) {
 388         @Override
 389         public boolean process(OptionHelper helper, String option) {
 390             String p = option.substring(option.indexOf(':') + 1);
 391             String prev = helper.get(PLUGIN);
 392             helper.put(PLUGIN.text, (prev == null) ? p : prev + '\0' + p.trim());
 393             return false;
 394         }
 395     },
 396 
 397     /* This is a back door to the compiler's option table.
 398      * -XDx=y sets the option x to the value y.
 399      * -XDx sets the option x to the value x.
 400      */
 401     XD("-XD", null, HIDDEN, BASIC) {
 402         @Override
 403         public boolean matches(String s) {
 404             return s.startsWith(text);
 405         }
 406         @Override
 407         public boolean process(OptionHelper helper, String option) {
 408             option = option.substring(text.length());
 409             int eq = option.indexOf('=');
 410             String key = (eq < 0) ? option : option.substring(0, eq);
 411             String value = (eq < 0) ? option : option.substring(eq+1);
 412             helper.put(key, value);
 413             return false;
 414         }
 415     },
 416 
 417     // This option exists only for the purpose of documenting itself.
 418     // It's actually implemented by the CommandLine class.
 419     AT("@", "opt.arg.file", "opt.AT", STANDARD, INFO, true) {
 420         @Override
 421         public boolean process(OptionHelper helper, String option) {
 422             throw new AssertionError("the @ flag should be caught by CommandLine.");
 423         }
 424     },
 425 
 426     /*
 427      * TODO: With apt, the matches method accepts anything if
 428      * -XclassAsDecls is used; code elsewhere does the lookup to
 429      * see if the class name is both legal and found.
 430      *
 431      * In apt, the process method adds the candidate class file
 432      * name to a separate list.
 433      */
 434     SOURCEFILE("sourcefile", null, HIDDEN, INFO) {
 435         @Override
 436         public boolean matches(String s) {
 437             return s.endsWith(".java")  // Java source file
 438                 || SourceVersion.isName(s);   // Legal type name
 439         }
 440         @Override
 441         public boolean process(OptionHelper helper, String option) {
 442             if (option.endsWith(".java") ) {
 443                 File f = new File(option);
 444                 if (!f.exists()) {
 445                     helper.error("err.file.not.found", f);
 446                     return true;
 447                 }
 448                 if (!f.isFile()) {
 449                     helper.error("err.file.not.file", f);
 450                     return true;
 451                 }
 452                 helper.addFile(f);
 453             } else {
 454                 helper.addClassName(option);
 455             }
 456             return false;
 457         }
 458     };
 459 
 460     /** The kind of an Option. This is used by the -help and -X options. */
 461     public enum OptionKind {
 462         /** A standard option, documented by -help. */
 463         STANDARD,
 464         /** An extended option, documented by -X. */
 465         EXTENDED,
 466         /** A hidden option, not documented. */
 467         HIDDEN,
 468     }
 469 
 470     /** The group for an Option. This determines the situations in which the
 471      *  option is applicable. */
 472     enum OptionGroup {
 473         /** A basic option, available for use on the command line or via the
 474          *  Compiler API. */
 475         BASIC,
 476         /** An option for javac's standard JavaFileManager. Other file managers
 477          *  may or may not support these options. */
 478         FILEMANAGER,
 479         /** A command-line option that requests information, such as -help. */
 480         INFO,
 481         /** A command-line "option" representing a file or class name. */
 482         OPERAND
 483     }
 484 
 485     /** The kind of choice for "choice" options. */
 486     enum ChoiceKind {
 487         /** The expected value is exactly one of the set of choices. */
 488         ONEOF,
 489         /** The expected value is one of more of the set of choices. */
 490         ANYOF
 491     }
 492 
 493     public final String text;
 494 
 495     final OptionKind kind;
 496 
 497     final OptionGroup group;
 498 
 499     /** Documentation key for arguments.
 500      */
 501     final String argsNameKey;
 502 
 503     /** Documentation key for description.
 504      */
 505     final String descrKey;
 506 
 507     /** Suffix option (-foo=bar or -foo:bar)
 508      */
 509     final boolean hasSuffix;
 510 
 511     /** The kind of choices for this option, if any.
 512      */
 513     final ChoiceKind choiceKind;
 514 
 515     /** The choices for this option, if any, and whether or not the choices
 516      *  are hidden
 517      */
 518     final Map<String,Boolean> choices;
 519 
 520 
 521     Option(String text, String descrKey,
 522             OptionKind kind, OptionGroup group) {
 523         this(text, null, descrKey, kind, group, null, null, false);
 524     }
 525 
 526     Option(String text, String argsNameKey, String descrKey,
 527             OptionKind kind, OptionGroup group) {
 528         this(text, argsNameKey, descrKey, kind, group, null, null, false);
 529     }
 530 
 531     Option(String text, String argsNameKey, String descrKey,
 532             OptionKind kind, OptionGroup group, boolean doHasSuffix) {
 533         this(text, argsNameKey, descrKey, kind, group, null, null, doHasSuffix);
 534     }
 535 
 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, false);
 540     }
 541 
 542     Option(String text, String descrKey,
 543             OptionKind kind, OptionGroup group,
 544             ChoiceKind choiceKind, String... choices) {
 545         this(text, null, descrKey, kind, group, choiceKind,
 546                 createChoices(choices), false);
 547     }
 548     // where
 549         private static Map<String,Boolean> createChoices(String... choices) {
 550             Map<String,Boolean> map = new LinkedHashMap<String,Boolean>();
 551             for (String c: choices)
 552                 map.put(c, false);
 553             return map;
 554         }
 555 
 556     private Option(String text, String argsNameKey, String descrKey,
 557             OptionKind kind, OptionGroup group,
 558             ChoiceKind choiceKind, Map<String,Boolean> choices,
 559             boolean doHasSuffix) {
 560         this.text = text;
 561         this.argsNameKey = argsNameKey;
 562         this.descrKey = descrKey;
 563         this.kind = kind;
 564         this.group = group;
 565         this.choiceKind = choiceKind;
 566         this.choices = choices;
 567         char lastChar = text.charAt(text.length()-1);
 568         this.hasSuffix = doHasSuffix || lastChar == ':' || lastChar == '=';
 569     }
 570 
 571     public String getText() {
 572         return text;
 573     }
 574 
 575     public OptionKind getKind() {
 576         return kind;
 577     }
 578 
 579     public boolean hasArg() {
 580         return argsNameKey != null && !hasSuffix;
 581     }
 582 
 583     public boolean matches(String option) {
 584         if (!hasSuffix)
 585             return option.equals(text);
 586 
 587         if (!option.startsWith(text))
 588             return false;
 589 
 590         if (choices != null) {
 591             String arg = option.substring(text.length());
 592             if (choiceKind == ChoiceKind.ONEOF)
 593                 return choices.keySet().contains(arg);
 594             else {
 595                 for (String a: arg.split(",+")) {
 596                     if (!choices.keySet().contains(a))
 597                         return false;
 598                 }
 599             }
 600         }
 601 
 602         return true;
 603     }
 604 
 605     public boolean process(OptionHelper helper, String option, String arg) {
 606         if (choices != null) {
 607             if (choiceKind == ChoiceKind.ONEOF) {
 608                 // some clients like to see just one of option+choice set
 609                 for (String s: choices.keySet())
 610                     helper.remove(option + s);
 611                 String opt = option + arg;
 612                 helper.put(opt, opt);
 613                 // some clients like to see option (without trailing ":")
 614                 // set to arg
 615                 String nm = option.substring(0, option.length() - 1);
 616                 helper.put(nm, arg);
 617             } else {
 618                 // set option+word for each word in arg
 619                 for (String a: arg.split(",+")) {
 620                     String opt = option + a;
 621                     helper.put(opt, opt);
 622                 }
 623             }
 624         }
 625         helper.put(option, arg);
 626         return false;
 627     }
 628 
 629     public boolean process(OptionHelper helper, String option) {
 630         if (hasSuffix)
 631             return process(helper, text, option.substring(text.length()));
 632         else
 633             return process(helper, option, option);
 634     }
 635 
 636     void help(Log log, OptionKind kind) {
 637         if (this.kind != kind)
 638             return;
 639 
 640         log.printRawLines(WriterKind.NOTICE,
 641                 String.format("  %-26s %s",
 642                     helpSynopsis(log),
 643                     log.localize(PrefixKind.JAVAC, descrKey)));
 644 
 645     }
 646 
 647     private String helpSynopsis(Log log) {
 648         StringBuilder sb = new StringBuilder();
 649         sb.append(text);
 650         if (argsNameKey == null) {
 651             if (choices != null) {
 652                 String sep = "{";
 653                 for (Map.Entry<String,Boolean> e: choices.entrySet()) {
 654                     if (!e.getValue()) {
 655                         sb.append(sep);
 656                         sb.append(e.getKey());
 657                         sep = ",";
 658                     }
 659                 }
 660                 sb.append("}");
 661             }
 662         } else {
 663             if (!hasSuffix)
 664                 sb.append(" ");
 665             sb.append(log.localize(PrefixKind.JAVAC, argsNameKey));
 666 
 667         }
 668 
 669         return sb.toString();
 670     }
 671 
 672     // For -XpkgInfo:value
 673     public enum PkgInfo {
 674         ALWAYS, LEGACY, NONEMPTY;
 675         public static PkgInfo get(Options options) {
 676             String v = options.get(XPKGINFO);
 677             return (v == null
 678                     ? PkgInfo.LEGACY
 679                     : PkgInfo.valueOf(v.toUpperCase()));
 680         }
 681     }
 682 
 683     private static Map<String,Boolean> getXLintChoices() {
 684         Map<String,Boolean> choices = new LinkedHashMap<String,Boolean>();
 685         choices.put("all", false);
 686         for (Lint.LintCategory c : Lint.LintCategory.values())
 687             choices.put(c.option, c.hidden);
 688         for (Lint.LintCategory c : Lint.LintCategory.values())
 689             choices.put("-" + c.option, c.hidden);
 690         choices.put("none", false);
 691         return choices;
 692     }
 693 
 694     static Set<Option> getJavaCompilerOptions() {
 695         return EnumSet.allOf(Option.class);
 696     }
 697 
 698     public static Set<Option> getJavacFileManagerOptions() {
 699         return getOptions(EnumSet.of(FILEMANAGER));
 700     }
 701 
 702     public static Set<Option> getJavacToolOptions() {
 703         return getOptions(EnumSet.of(BASIC));
 704     }
 705 
 706     static Set<Option> getOptions(Set<OptionGroup> desired) {
 707         Set<Option> options = EnumSet.noneOf(Option.class);
 708         for (Option option : Option.values())
 709             if (desired.contains(option.group))
 710                 options.add(option);
 711         return Collections.unmodifiableSet(options);
 712     }
 713 
 714 }