Tue, 24 Aug 2010 11:31:00 -0700
6935638: -implicit:none prevents compilation with annotation processing
Reviewed-by: darcy
1 /*
2 * Copyright (c) 1999, 2009, 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.io.*;
29 import java.util.HashSet;
30 import java.util.LinkedHashSet;
31 import java.util.LinkedHashMap;
32 import java.util.Map;
33 import java.util.MissingResourceException;
34 import java.util.ResourceBundle;
35 import java.util.Set;
36 import java.util.logging.Handler;
37 import java.util.logging.Level;
38 import java.util.logging.Logger;
40 import javax.tools.JavaFileManager;
41 import javax.tools.JavaFileObject;
42 import javax.tools.DiagnosticListener;
44 import com.sun.tools.javac.file.JavacFileManager;
45 import com.sun.source.util.TaskEvent;
46 import com.sun.source.util.TaskListener;
48 import com.sun.tools.javac.util.*;
49 import com.sun.tools.javac.code.*;
50 import com.sun.tools.javac.tree.*;
51 import com.sun.tools.javac.parser.*;
52 import com.sun.tools.javac.comp.*;
53 import com.sun.tools.javac.jvm.*;
55 import com.sun.tools.javac.code.Symbol.*;
56 import com.sun.tools.javac.tree.JCTree.*;
58 import com.sun.tools.javac.processing.*;
59 import javax.annotation.processing.Processor;
61 import static javax.tools.StandardLocation.CLASS_OUTPUT;
62 import static com.sun.tools.javac.util.ListBuffer.lb;
64 // TEMP, until we have a more efficient way to save doc comment info
65 import com.sun.tools.javac.parser.DocCommentScanner;
67 import java.util.HashMap;
68 import java.util.Queue;
69 import javax.lang.model.SourceVersion;
71 /** This class could be the main entry point for GJC when GJC is used as a
72 * component in a larger software system. It provides operations to
73 * construct a new compiler, and to run a new compiler on a set of source
74 * files.
75 *
76 * <p><b>This is NOT part of any supported API.
77 * If you write code that depends on this, you do so at your own risk.
78 * This code and its internal interfaces are subject to change or
79 * deletion without notice.</b>
80 */
81 public class JavaCompiler implements ClassReader.SourceCompleter {
82 /** The context key for the compiler. */
83 protected static final Context.Key<JavaCompiler> compilerKey =
84 new Context.Key<JavaCompiler>();
86 /** Get the JavaCompiler instance for this context. */
87 public static JavaCompiler instance(Context context) {
88 JavaCompiler instance = context.get(compilerKey);
89 if (instance == null)
90 instance = new JavaCompiler(context);
91 return instance;
92 }
94 /** The current version number as a string.
95 */
96 public static String version() {
97 return version("release"); // mm.nn.oo[-milestone]
98 }
100 /** The current full version number as a string.
101 */
102 public static String fullVersion() {
103 return version("full"); // mm.mm.oo[-milestone]-build
104 }
106 private static final String versionRBName = "com.sun.tools.javac.resources.version";
107 private static ResourceBundle versionRB;
109 private static String version(String key) {
110 if (versionRB == null) {
111 try {
112 versionRB = ResourceBundle.getBundle(versionRBName);
113 } catch (MissingResourceException e) {
114 return Log.getLocalizedString("version.not.available");
115 }
116 }
117 try {
118 return versionRB.getString(key);
119 }
120 catch (MissingResourceException e) {
121 return Log.getLocalizedString("version.not.available");
122 }
123 }
125 /**
126 * Control how the compiler's latter phases (attr, flow, desugar, generate)
127 * are connected. Each individual file is processed by each phase in turn,
128 * but with different compile policies, you can control the order in which
129 * each class is processed through its next phase.
130 *
131 * <p>Generally speaking, the compiler will "fail fast" in the face of
132 * errors, although not aggressively so. flow, desugar, etc become no-ops
133 * once any errors have occurred. No attempt is currently made to determine
134 * if it might be safe to process a class through its next phase because
135 * it does not depend on any unrelated errors that might have occurred.
136 */
137 protected static enum CompilePolicy {
138 /**
139 * Just attribute the parse trees.
140 */
141 ATTR_ONLY,
143 /**
144 * Just attribute and do flow analysis on the parse trees.
145 * This should catch most user errors.
146 */
147 CHECK_ONLY,
149 /**
150 * Attribute everything, then do flow analysis for everything,
151 * then desugar everything, and only then generate output.
152 * This means no output will be generated if there are any
153 * errors in any classes.
154 */
155 SIMPLE,
157 /**
158 * Groups the classes for each source file together, then process
159 * each group in a manner equivalent to the {@code SIMPLE} policy.
160 * This means no output will be generated if there are any
161 * errors in any of the classes in a source file.
162 */
163 BY_FILE,
165 /**
166 * Completely process each entry on the todo list in turn.
167 * -- this is the same for 1.5.
168 * Means output might be generated for some classes in a compilation unit
169 * and not others.
170 */
171 BY_TODO;
173 static CompilePolicy decode(String option) {
174 if (option == null)
175 return DEFAULT_COMPILE_POLICY;
176 else if (option.equals("attr"))
177 return ATTR_ONLY;
178 else if (option.equals("check"))
179 return CHECK_ONLY;
180 else if (option.equals("simple"))
181 return SIMPLE;
182 else if (option.equals("byfile"))
183 return BY_FILE;
184 else if (option.equals("bytodo"))
185 return BY_TODO;
186 else
187 return DEFAULT_COMPILE_POLICY;
188 }
189 }
191 private static CompilePolicy DEFAULT_COMPILE_POLICY = CompilePolicy.BY_TODO;
193 protected static enum ImplicitSourcePolicy {
194 /** Don't generate or process implicitly read source files. */
195 NONE,
196 /** Generate classes for implicitly read source files. */
197 CLASS,
198 /** Like CLASS, but generate warnings if annotation processing occurs */
199 UNSET;
201 static ImplicitSourcePolicy decode(String option) {
202 if (option == null)
203 return UNSET;
204 else if (option.equals("none"))
205 return NONE;
206 else if (option.equals("class"))
207 return CLASS;
208 else
209 return UNSET;
210 }
211 }
213 /** The log to be used for error reporting.
214 */
215 public Log log;
217 /** Factory for creating diagnostic objects
218 */
219 JCDiagnostic.Factory diagFactory;
221 /** The tree factory module.
222 */
223 protected TreeMaker make;
225 /** The class reader.
226 */
227 protected ClassReader reader;
229 /** The class writer.
230 */
231 protected ClassWriter writer;
233 /** The module for the symbol table entry phases.
234 */
235 protected Enter enter;
237 /** The symbol table.
238 */
239 protected Symtab syms;
241 /** The language version.
242 */
243 protected Source source;
245 /** The module for code generation.
246 */
247 protected Gen gen;
249 /** The name table.
250 */
251 protected Names names;
253 /** The attributor.
254 */
255 protected Attr attr;
257 /** The attributor.
258 */
259 protected Check chk;
261 /** The flow analyzer.
262 */
263 protected Flow flow;
265 /** The type eraser.
266 */
267 protected TransTypes transTypes;
269 /** The syntactic sugar desweetener.
270 */
271 protected Lower lower;
273 /** The annotation annotator.
274 */
275 protected Annotate annotate;
277 /** Force a completion failure on this name
278 */
279 protected final Name completionFailureName;
281 /** Type utilities.
282 */
283 protected Types types;
285 /** Access to file objects.
286 */
287 protected JavaFileManager fileManager;
289 /** Factory for parsers.
290 */
291 protected ParserFactory parserFactory;
293 /** Optional listener for progress events
294 */
295 protected TaskListener taskListener;
297 /**
298 * Annotation processing may require and provide a new instance
299 * of the compiler to be used for the analyze and generate phases.
300 */
301 protected JavaCompiler delegateCompiler;
303 /**
304 * Flag set if any annotation processing occurred.
305 **/
306 protected boolean annotationProcessingOccurred;
308 /**
309 * Flag set if any implicit source files read.
310 **/
311 protected boolean implicitSourceFilesRead;
313 protected Context context;
315 /** Construct a new compiler using a shared context.
316 */
317 public JavaCompiler(final Context context) {
318 this.context = context;
319 context.put(compilerKey, this);
321 // if fileManager not already set, register the JavacFileManager to be used
322 if (context.get(JavaFileManager.class) == null)
323 JavacFileManager.preRegister(context);
325 names = Names.instance(context);
326 log = Log.instance(context);
327 diagFactory = JCDiagnostic.Factory.instance(context);
328 reader = ClassReader.instance(context);
329 make = TreeMaker.instance(context);
330 writer = ClassWriter.instance(context);
331 enter = Enter.instance(context);
332 todo = Todo.instance(context);
334 fileManager = context.get(JavaFileManager.class);
335 parserFactory = ParserFactory.instance(context);
337 try {
338 // catch completion problems with predefineds
339 syms = Symtab.instance(context);
340 } catch (CompletionFailure ex) {
341 // inlined Check.completionError as it is not initialized yet
342 log.error("cant.access", ex.sym, ex.getDetailValue());
343 if (ex instanceof ClassReader.BadClassFile)
344 throw new Abort();
345 }
346 source = Source.instance(context);
347 attr = Attr.instance(context);
348 chk = Check.instance(context);
349 gen = Gen.instance(context);
350 flow = Flow.instance(context);
351 transTypes = TransTypes.instance(context);
352 lower = Lower.instance(context);
353 annotate = Annotate.instance(context);
354 types = Types.instance(context);
355 taskListener = context.get(TaskListener.class);
357 reader.sourceCompleter = this;
359 Options options = Options.instance(context);
361 verbose = options.get("-verbose") != null;
362 sourceOutput = options.get("-printsource") != null; // used to be -s
363 stubOutput = options.get("-stubs") != null;
364 relax = options.get("-relax") != null;
365 printFlat = options.get("-printflat") != null;
366 attrParseOnly = options.get("-attrparseonly") != null;
367 encoding = options.get("-encoding");
368 lineDebugInfo = options.get("-g:") == null ||
369 options.get("-g:lines") != null;
370 genEndPos = options.get("-Xjcov") != null ||
371 context.get(DiagnosticListener.class) != null;
372 devVerbose = options.get("dev") != null;
373 processPcks = options.get("process.packages") != null;
374 werror = options.get("-Werror") != null;
376 verboseCompilePolicy = options.get("verboseCompilePolicy") != null;
378 if (attrParseOnly)
379 compilePolicy = CompilePolicy.ATTR_ONLY;
380 else
381 compilePolicy = CompilePolicy.decode(options.get("compilePolicy"));
383 implicitSourcePolicy = ImplicitSourcePolicy.decode(options.get("-implicit"));
385 completionFailureName =
386 (options.get("failcomplete") != null)
387 ? names.fromString(options.get("failcomplete"))
388 : null;
390 shouldStopPolicy =
391 (options.get("shouldStopPolicy") != null)
392 ? CompileState.valueOf(options.get("shouldStopPolicy"))
393 : null;
394 if (options.get("oldDiags") == null)
395 log.setDiagnosticFormatter(RichDiagnosticFormatter.instance(context));
396 }
398 /* Switches:
399 */
401 /** Verbose output.
402 */
403 public boolean verbose;
405 /** Emit plain Java source files rather than class files.
406 */
407 public boolean sourceOutput;
409 /** Emit stub source files rather than class files.
410 */
411 public boolean stubOutput;
413 /** Generate attributed parse tree only.
414 */
415 public boolean attrParseOnly;
417 /** Switch: relax some constraints for producing the jsr14 prototype.
418 */
419 boolean relax;
421 /** Debug switch: Emit Java sources after inner class flattening.
422 */
423 public boolean printFlat;
425 /** The encoding to be used for source input.
426 */
427 public String encoding;
429 /** Generate code with the LineNumberTable attribute for debugging
430 */
431 public boolean lineDebugInfo;
433 /** Switch: should we store the ending positions?
434 */
435 public boolean genEndPos;
437 /** Switch: should we debug ignored exceptions
438 */
439 protected boolean devVerbose;
441 /** Switch: should we (annotation) process packages as well
442 */
443 protected boolean processPcks;
445 /** Switch: treat warnings as errors
446 */
447 protected boolean werror;
449 /** Switch: is annotation processing requested explitly via
450 * CompilationTask.setProcessors?
451 */
452 protected boolean explicitAnnotationProcessingRequested = false;
454 /**
455 * The policy for the order in which to perform the compilation
456 */
457 protected CompilePolicy compilePolicy;
459 /**
460 * The policy for what to do with implicitly read source files
461 */
462 protected ImplicitSourcePolicy implicitSourcePolicy;
464 /**
465 * Report activity related to compilePolicy
466 */
467 public boolean verboseCompilePolicy;
469 /**
470 * Policy of how far to continue processing. null means until first
471 * error.
472 */
473 public CompileState shouldStopPolicy;
475 /** A queue of all as yet unattributed classes.
476 */
477 public Todo todo;
479 /** Ordered list of compiler phases for each compilation unit. */
480 public enum CompileState {
481 PARSE(1),
482 ENTER(2),
483 PROCESS(3),
484 ATTR(4),
485 FLOW(5),
486 TRANSTYPES(6),
487 LOWER(7),
488 GENERATE(8);
489 CompileState(int value) {
490 this.value = value;
491 }
492 boolean isDone(CompileState other) {
493 return value >= other.value;
494 }
495 private int value;
496 };
497 /** Partial map to record which compiler phases have been executed
498 * for each compilation unit. Used for ATTR and FLOW phases.
499 */
500 protected class CompileStates extends HashMap<Env<AttrContext>,CompileState> {
501 private static final long serialVersionUID = 1812267524140424433L;
502 boolean isDone(Env<AttrContext> env, CompileState cs) {
503 CompileState ecs = get(env);
504 return ecs != null && ecs.isDone(cs);
505 }
506 }
507 private CompileStates compileStates = new CompileStates();
509 /** The set of currently compiled inputfiles, needed to ensure
510 * we don't accidentally overwrite an input file when -s is set.
511 * initialized by `compile'.
512 */
513 protected Set<JavaFileObject> inputFiles = new HashSet<JavaFileObject>();
515 protected boolean shouldStop(CompileState cs) {
516 if (shouldStopPolicy == null)
517 return (errorCount() > 0);
518 else
519 return cs.ordinal() > shouldStopPolicy.ordinal();
520 }
522 /** The number of errors reported so far.
523 */
524 public int errorCount() {
525 if (delegateCompiler != null && delegateCompiler != this)
526 return delegateCompiler.errorCount();
527 else {
528 if (werror && log.nerrors == 0 && log.nwarnings > 0) {
529 log.error("warnings.and.werror");
530 }
531 }
532 return log.nerrors;
533 }
535 protected final <T> Queue<T> stopIfError(CompileState cs, Queue<T> queue) {
536 return shouldStop(cs) ? ListBuffer.<T>lb() : queue;
537 }
539 protected final <T> List<T> stopIfError(CompileState cs, List<T> list) {
540 return shouldStop(cs) ? List.<T>nil() : list;
541 }
543 /** The number of warnings reported so far.
544 */
545 public int warningCount() {
546 if (delegateCompiler != null && delegateCompiler != this)
547 return delegateCompiler.warningCount();
548 else
549 return log.nwarnings;
550 }
552 /** Try to open input stream with given name.
553 * Report an error if this fails.
554 * @param filename The file name of the input stream to be opened.
555 */
556 public CharSequence readSource(JavaFileObject filename) {
557 try {
558 inputFiles.add(filename);
559 return filename.getCharContent(false);
560 } catch (IOException e) {
561 log.error("error.reading.file", filename, JavacFileManager.getMessage(e));
562 return null;
563 }
564 }
566 /** Parse contents of input stream.
567 * @param filename The name of the file from which input stream comes.
568 * @param input The input stream to be parsed.
569 */
570 protected JCCompilationUnit parse(JavaFileObject filename, CharSequence content) {
571 long msec = now();
572 JCCompilationUnit tree = make.TopLevel(List.<JCTree.JCAnnotation>nil(),
573 null, List.<JCTree>nil());
574 if (content != null) {
575 if (verbose) {
576 printVerbose("parsing.started", filename);
577 }
578 if (taskListener != null) {
579 TaskEvent e = new TaskEvent(TaskEvent.Kind.PARSE, filename);
580 taskListener.started(e);
581 }
582 int initialErrorCount = log.nerrors;
583 Parser parser = parserFactory.newParser(content, keepComments(), genEndPos, lineDebugInfo);
584 tree = parser.parseCompilationUnit();
585 log.unrecoverableError |= (log.nerrors > initialErrorCount);
586 if (verbose) {
587 printVerbose("parsing.done", Long.toString(elapsed(msec)));
588 }
589 }
591 tree.sourcefile = filename;
593 if (content != null && taskListener != null) {
594 TaskEvent e = new TaskEvent(TaskEvent.Kind.PARSE, tree);
595 taskListener.finished(e);
596 }
598 return tree;
599 }
600 // where
601 public boolean keepComments = false;
602 protected boolean keepComments() {
603 return keepComments || sourceOutput || stubOutput;
604 }
607 /** Parse contents of file.
608 * @param filename The name of the file to be parsed.
609 */
610 @Deprecated
611 public JCTree.JCCompilationUnit parse(String filename) throws IOException {
612 JavacFileManager fm = (JavacFileManager)fileManager;
613 return parse(fm.getJavaFileObjectsFromStrings(List.of(filename)).iterator().next());
614 }
616 /** Parse contents of file.
617 * @param filename The name of the file to be parsed.
618 */
619 public JCTree.JCCompilationUnit parse(JavaFileObject filename) {
620 JavaFileObject prev = log.useSource(filename);
621 try {
622 JCTree.JCCompilationUnit t = parse(filename, readSource(filename));
623 if (t.endPositions != null)
624 log.setEndPosTable(filename, t.endPositions);
625 return t;
626 } finally {
627 log.useSource(prev);
628 }
629 }
631 /** Resolve an identifier.
632 * @param name The identifier to resolve
633 */
634 public Symbol resolveIdent(String name) {
635 if (name.equals(""))
636 return syms.errSymbol;
637 JavaFileObject prev = log.useSource(null);
638 try {
639 JCExpression tree = null;
640 for (String s : name.split("\\.", -1)) {
641 if (!SourceVersion.isIdentifier(s)) // TODO: check for keywords
642 return syms.errSymbol;
643 tree = (tree == null) ? make.Ident(names.fromString(s))
644 : make.Select(tree, names.fromString(s));
645 }
646 JCCompilationUnit toplevel =
647 make.TopLevel(List.<JCTree.JCAnnotation>nil(), null, List.<JCTree>nil());
648 toplevel.packge = syms.unnamedPackage;
649 return attr.attribIdent(tree, toplevel);
650 } finally {
651 log.useSource(prev);
652 }
653 }
655 /** Emit plain Java source for a class.
656 * @param env The attribution environment of the outermost class
657 * containing this class.
658 * @param cdef The class definition to be printed.
659 */
660 JavaFileObject printSource(Env<AttrContext> env, JCClassDecl cdef) throws IOException {
661 JavaFileObject outFile
662 = fileManager.getJavaFileForOutput(CLASS_OUTPUT,
663 cdef.sym.flatname.toString(),
664 JavaFileObject.Kind.SOURCE,
665 null);
666 if (inputFiles.contains(outFile)) {
667 log.error(cdef.pos(), "source.cant.overwrite.input.file", outFile);
668 return null;
669 } else {
670 BufferedWriter out = new BufferedWriter(outFile.openWriter());
671 try {
672 new Pretty(out, true).printUnit(env.toplevel, cdef);
673 if (verbose)
674 printVerbose("wrote.file", outFile);
675 } finally {
676 out.close();
677 }
678 return outFile;
679 }
680 }
682 /** Generate code and emit a class file for a given class
683 * @param env The attribution environment of the outermost class
684 * containing this class.
685 * @param cdef The class definition from which code is generated.
686 */
687 JavaFileObject genCode(Env<AttrContext> env, JCClassDecl cdef) throws IOException {
688 try {
689 if (gen.genClass(env, cdef) && (errorCount() == 0))
690 return writer.writeClass(cdef.sym);
691 } catch (ClassWriter.PoolOverflow ex) {
692 log.error(cdef.pos(), "limit.pool");
693 } catch (ClassWriter.StringOverflow ex) {
694 log.error(cdef.pos(), "limit.string.overflow",
695 ex.value.substring(0, 20));
696 } catch (CompletionFailure ex) {
697 chk.completionError(cdef.pos(), ex);
698 }
699 return null;
700 }
702 /** Complete compiling a source file that has been accessed
703 * by the class file reader.
704 * @param c The class the source file of which needs to be compiled.
705 * @param filename The name of the source file.
706 * @param f An input stream that reads the source file.
707 */
708 public void complete(ClassSymbol c) throws CompletionFailure {
709 // System.err.println("completing " + c);//DEBUG
710 if (completionFailureName == c.fullname) {
711 throw new CompletionFailure(c, "user-selected completion failure by class name");
712 }
713 JCCompilationUnit tree;
714 JavaFileObject filename = c.classfile;
715 JavaFileObject prev = log.useSource(filename);
717 try {
718 tree = parse(filename, filename.getCharContent(false));
719 } catch (IOException e) {
720 log.error("error.reading.file", filename, JavacFileManager.getMessage(e));
721 tree = make.TopLevel(List.<JCTree.JCAnnotation>nil(), null, List.<JCTree>nil());
722 } finally {
723 log.useSource(prev);
724 }
726 if (taskListener != null) {
727 TaskEvent e = new TaskEvent(TaskEvent.Kind.ENTER, tree);
728 taskListener.started(e);
729 }
731 enter.complete(List.of(tree), c);
733 if (taskListener != null) {
734 TaskEvent e = new TaskEvent(TaskEvent.Kind.ENTER, tree);
735 taskListener.finished(e);
736 }
738 if (enter.getEnv(c) == null) {
739 boolean isPkgInfo =
740 tree.sourcefile.isNameCompatible("package-info",
741 JavaFileObject.Kind.SOURCE);
742 if (isPkgInfo) {
743 if (enter.getEnv(tree.packge) == null) {
744 JCDiagnostic diag =
745 diagFactory.fragment("file.does.not.contain.package",
746 c.location());
747 throw reader.new BadClassFile(c, filename, diag);
748 }
749 } else {
750 JCDiagnostic diag =
751 diagFactory.fragment("file.doesnt.contain.class",
752 c.getQualifiedName());
753 throw reader.new BadClassFile(c, filename, diag);
754 }
755 }
757 implicitSourceFilesRead = true;
758 }
760 /** Track when the JavaCompiler has been used to compile something. */
761 private boolean hasBeenUsed = false;
762 private long start_msec = 0;
763 public long elapsed_msec = 0;
765 public void compile(List<JavaFileObject> sourceFileObject)
766 throws Throwable {
767 compile(sourceFileObject, List.<String>nil(), null);
768 }
770 /**
771 * Main method: compile a list of files, return all compiled classes
772 *
773 * @param sourceFileObjects file objects to be compiled
774 * @param classnames class names to process for annotations
775 * @param processors user provided annotation processors to bypass
776 * discovery, {@code null} means that no processors were provided
777 */
778 public void compile(List<JavaFileObject> sourceFileObjects,
779 List<String> classnames,
780 Iterable<? extends Processor> processors)
781 throws IOException // TODO: temp, from JavacProcessingEnvironment
782 {
783 if (processors != null && processors.iterator().hasNext())
784 explicitAnnotationProcessingRequested = true;
785 // as a JavaCompiler can only be used once, throw an exception if
786 // it has been used before.
787 if (hasBeenUsed)
788 throw new AssertionError("attempt to reuse JavaCompiler");
789 hasBeenUsed = true;
791 start_msec = now();
792 try {
793 initProcessAnnotations(processors);
795 // These method calls must be chained to avoid memory leaks
796 delegateCompiler =
797 processAnnotations(
798 enterTrees(stopIfError(CompileState.PARSE, parseFiles(sourceFileObjects))),
799 classnames);
801 delegateCompiler.compile2();
802 delegateCompiler.close();
803 elapsed_msec = delegateCompiler.elapsed_msec;
804 } catch (Abort ex) {
805 if (devVerbose)
806 ex.printStackTrace();
807 } finally {
808 if (procEnvImpl != null)
809 procEnvImpl.close();
810 }
811 }
813 /**
814 * The phases following annotation processing: attribution,
815 * desugar, and finally code generation.
816 */
817 private void compile2() {
818 try {
819 switch (compilePolicy) {
820 case ATTR_ONLY:
821 attribute(todo);
822 break;
824 case CHECK_ONLY:
825 flow(attribute(todo));
826 break;
828 case SIMPLE:
829 generate(desugar(flow(attribute(todo))));
830 break;
832 case BY_FILE: {
833 Queue<Queue<Env<AttrContext>>> q = todo.groupByFile();
834 while (!q.isEmpty() && !shouldStop(CompileState.ATTR)) {
835 generate(desugar(flow(attribute(q.remove()))));
836 }
837 }
838 break;
840 case BY_TODO:
841 while (!todo.isEmpty())
842 generate(desugar(flow(attribute(todo.remove()))));
843 break;
845 default:
846 assert false: "unknown compile policy";
847 }
848 } catch (Abort ex) {
849 if (devVerbose)
850 ex.printStackTrace();
851 }
853 if (verbose) {
854 elapsed_msec = elapsed(start_msec);
855 printVerbose("total", Long.toString(elapsed_msec));
856 }
858 reportDeferredDiagnostics();
860 if (!log.hasDiagnosticListener()) {
861 printCount("error", errorCount());
862 printCount("warn", warningCount());
863 }
864 }
866 private List<JCClassDecl> rootClasses;
868 /**
869 * Parses a list of files.
870 */
871 public List<JCCompilationUnit> parseFiles(Iterable<JavaFileObject> fileObjects) throws IOException {
872 if (shouldStop(CompileState.PARSE))
873 return List.nil();
875 //parse all files
876 ListBuffer<JCCompilationUnit> trees = lb();
877 for (JavaFileObject fileObject : fileObjects)
878 trees.append(parse(fileObject));
879 return trees.toList();
880 }
882 /**
883 * Enter the symbols found in a list of parse trees.
884 * As a side-effect, this puts elements on the "todo" list.
885 * Also stores a list of all top level classes in rootClasses.
886 */
887 public List<JCCompilationUnit> enterTrees(List<JCCompilationUnit> roots) {
888 //enter symbols for all files
889 if (taskListener != null) {
890 for (JCCompilationUnit unit: roots) {
891 TaskEvent e = new TaskEvent(TaskEvent.Kind.ENTER, unit);
892 taskListener.started(e);
893 }
894 }
896 enter.main(roots);
898 if (taskListener != null) {
899 for (JCCompilationUnit unit: roots) {
900 TaskEvent e = new TaskEvent(TaskEvent.Kind.ENTER, unit);
901 taskListener.finished(e);
902 }
903 }
905 //If generating source, remember the classes declared in
906 //the original compilation units listed on the command line.
907 if (sourceOutput || stubOutput) {
908 ListBuffer<JCClassDecl> cdefs = lb();
909 for (JCCompilationUnit unit : roots) {
910 for (List<JCTree> defs = unit.defs;
911 defs.nonEmpty();
912 defs = defs.tail) {
913 if (defs.head instanceof JCClassDecl)
914 cdefs.append((JCClassDecl)defs.head);
915 }
916 }
917 rootClasses = cdefs.toList();
918 }
920 // Ensure the input files have been recorded. Although this is normally
921 // done by readSource, it may not have been done if the trees were read
922 // in a prior round of annotation processing, and the trees have been
923 // cleaned and are being reused.
924 for (JCCompilationUnit unit : roots) {
925 inputFiles.add(unit.sourcefile);
926 }
928 return roots;
929 }
931 /**
932 * Set to true to enable skeleton annotation processing code.
933 * Currently, we assume this variable will be replaced more
934 * advanced logic to figure out if annotation processing is
935 * needed.
936 */
937 boolean processAnnotations = false;
939 /**
940 * Object to handle annotation processing.
941 */
942 private JavacProcessingEnvironment procEnvImpl = null;
944 /**
945 * Check if we should process annotations.
946 * If so, and if no scanner is yet registered, then set up the DocCommentScanner
947 * to catch doc comments, and set keepComments so the parser records them in
948 * the compilation unit.
949 *
950 * @param processors user provided annotation processors to bypass
951 * discovery, {@code null} means that no processors were provided
952 */
953 public void initProcessAnnotations(Iterable<? extends Processor> processors)
954 throws IOException {
955 // Process annotations if processing is not disabled and there
956 // is at least one Processor available.
957 Options options = Options.instance(context);
958 if (options.get("-proc:none") != null) {
959 processAnnotations = false;
960 } else if (procEnvImpl == null) {
961 procEnvImpl = new JavacProcessingEnvironment(context, processors);
962 processAnnotations = procEnvImpl.atLeastOneProcessor();
964 if (processAnnotations) {
965 if (context.get(Scanner.Factory.scannerFactoryKey) == null)
966 DocCommentScanner.Factory.preRegister(context);
967 options.put("save-parameter-names", "save-parameter-names");
968 reader.saveParameterNames = true;
969 keepComments = true;
970 if (taskListener != null)
971 taskListener.started(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING));
974 } else { // free resources
975 procEnvImpl.close();
976 }
977 }
978 }
980 // TODO: called by JavacTaskImpl
981 public JavaCompiler processAnnotations(List<JCCompilationUnit> roots)
982 throws IOException {
983 return processAnnotations(roots, List.<String>nil());
984 }
986 /**
987 * Process any anotations found in the specifed compilation units.
988 * @param roots a list of compilation units
989 * @return an instance of the compiler in which to complete the compilation
990 */
991 public JavaCompiler processAnnotations(List<JCCompilationUnit> roots,
992 List<String> classnames)
993 throws IOException { // TODO: see TEMP note in JavacProcessingEnvironment
994 if (shouldStop(CompileState.PROCESS)) {
995 // Errors were encountered.
996 // If log.unrecoverableError is set, the errors were parse errors
997 // or other errors during enter which cannot be fixed by running
998 // any annotation processors.
999 if (log.unrecoverableError)
1000 return this;
1001 }
1003 // ASSERT: processAnnotations and procEnvImpl should have been set up by
1004 // by initProcessAnnotations
1006 // NOTE: The !classnames.isEmpty() checks should be refactored to Main.
1008 if (!processAnnotations) {
1009 // If there are no annotation processors present, and
1010 // annotation processing is to occur with compilation,
1011 // emit a warning.
1012 Options options = Options.instance(context);
1013 if (options.get("-proc:only") != null) {
1014 log.warning("proc.proc-only.requested.no.procs");
1015 todo.clear();
1016 }
1017 // If not processing annotations, classnames must be empty
1018 if (!classnames.isEmpty()) {
1019 log.error("proc.no.explicit.annotation.processing.requested",
1020 classnames);
1021 }
1022 return this; // continue regular compilation
1023 }
1025 try {
1026 List<ClassSymbol> classSymbols = List.nil();
1027 List<PackageSymbol> pckSymbols = List.nil();
1028 if (!classnames.isEmpty()) {
1029 // Check for explicit request for annotation
1030 // processing
1031 if (!explicitAnnotationProcessingRequested()) {
1032 log.error("proc.no.explicit.annotation.processing.requested",
1033 classnames);
1034 return this; // TODO: Will this halt compilation?
1035 } else {
1036 boolean errors = false;
1037 for (String nameStr : classnames) {
1038 Symbol sym = resolveIdent(nameStr);
1039 if (sym == null || (sym.kind == Kinds.PCK && !processPcks)) {
1040 log.error("proc.cant.find.class", nameStr);
1041 errors = true;
1042 continue;
1043 }
1044 try {
1045 if (sym.kind == Kinds.PCK)
1046 sym.complete();
1047 if (sym.exists()) {
1048 Name name = names.fromString(nameStr);
1049 if (sym.kind == Kinds.PCK)
1050 pckSymbols = pckSymbols.prepend((PackageSymbol)sym);
1051 else
1052 classSymbols = classSymbols.prepend((ClassSymbol)sym);
1053 continue;
1054 }
1055 assert sym.kind == Kinds.PCK;
1056 log.warning("proc.package.does.not.exist", nameStr);
1057 pckSymbols = pckSymbols.prepend((PackageSymbol)sym);
1058 } catch (CompletionFailure e) {
1059 log.error("proc.cant.find.class", nameStr);
1060 errors = true;
1061 continue;
1062 }
1063 }
1064 if (errors)
1065 return this;
1066 }
1067 }
1068 try {
1069 JavaCompiler c = procEnvImpl.doProcessing(context, roots, classSymbols, pckSymbols);
1070 if (c != this)
1071 annotationProcessingOccurred = c.annotationProcessingOccurred = true;
1072 return c;
1073 } finally {
1074 procEnvImpl.close();
1075 }
1076 } catch (CompletionFailure ex) {
1077 log.error("cant.access", ex.sym, ex.getDetailValue());
1078 return this;
1080 }
1081 }
1083 boolean explicitAnnotationProcessingRequested() {
1084 Options options = Options.instance(context);
1085 return
1086 explicitAnnotationProcessingRequested ||
1087 options.get("-processor") != null ||
1088 options.get("-processorpath") != null ||
1089 options.get("-proc:only") != null ||
1090 options.get("-Xprint") != null;
1091 }
1093 /**
1094 * Attribute a list of parse trees, such as found on the "todo" list.
1095 * Note that attributing classes may cause additional files to be
1096 * parsed and entered via the SourceCompleter.
1097 * Attribution of the entries in the list does not stop if any errors occur.
1098 * @returns a list of environments for attributd classes.
1099 */
1100 public Queue<Env<AttrContext>> attribute(Queue<Env<AttrContext>> envs) {
1101 ListBuffer<Env<AttrContext>> results = lb();
1102 while (!envs.isEmpty())
1103 results.append(attribute(envs.remove()));
1104 return stopIfError(CompileState.ATTR, results);
1105 }
1107 /**
1108 * Attribute a parse tree.
1109 * @returns the attributed parse tree
1110 */
1111 public Env<AttrContext> attribute(Env<AttrContext> env) {
1112 if (compileStates.isDone(env, CompileState.ATTR))
1113 return env;
1115 if (verboseCompilePolicy)
1116 printNote("[attribute " + env.enclClass.sym + "]");
1117 if (verbose)
1118 printVerbose("checking.attribution", env.enclClass.sym);
1120 if (taskListener != null) {
1121 TaskEvent e = new TaskEvent(TaskEvent.Kind.ANALYZE, env.toplevel, env.enclClass.sym);
1122 taskListener.started(e);
1123 }
1125 JavaFileObject prev = log.useSource(
1126 env.enclClass.sym.sourcefile != null ?
1127 env.enclClass.sym.sourcefile :
1128 env.toplevel.sourcefile);
1129 try {
1130 attr.attribClass(env.tree.pos(), env.enclClass.sym);
1131 compileStates.put(env, CompileState.ATTR);
1132 }
1133 finally {
1134 log.useSource(prev);
1135 }
1137 return env;
1138 }
1140 /**
1141 * Perform dataflow checks on attributed parse trees.
1142 * These include checks for definite assignment and unreachable statements.
1143 * If any errors occur, an empty list will be returned.
1144 * @returns the list of attributed parse trees
1145 */
1146 public Queue<Env<AttrContext>> flow(Queue<Env<AttrContext>> envs) {
1147 ListBuffer<Env<AttrContext>> results = lb();
1148 for (Env<AttrContext> env: envs) {
1149 flow(env, results);
1150 }
1151 return stopIfError(CompileState.FLOW, results);
1152 }
1154 /**
1155 * Perform dataflow checks on an attributed parse tree.
1156 */
1157 public Queue<Env<AttrContext>> flow(Env<AttrContext> env) {
1158 ListBuffer<Env<AttrContext>> results = lb();
1159 flow(env, results);
1160 return stopIfError(CompileState.FLOW, results);
1161 }
1163 /**
1164 * Perform dataflow checks on an attributed parse tree.
1165 */
1166 protected void flow(Env<AttrContext> env, Queue<Env<AttrContext>> results) {
1167 try {
1168 if (shouldStop(CompileState.FLOW))
1169 return;
1171 if (relax || compileStates.isDone(env, CompileState.FLOW)) {
1172 results.add(env);
1173 return;
1174 }
1176 if (verboseCompilePolicy)
1177 printNote("[flow " + env.enclClass.sym + "]");
1178 JavaFileObject prev = log.useSource(
1179 env.enclClass.sym.sourcefile != null ?
1180 env.enclClass.sym.sourcefile :
1181 env.toplevel.sourcefile);
1182 try {
1183 make.at(Position.FIRSTPOS);
1184 TreeMaker localMake = make.forToplevel(env.toplevel);
1185 flow.analyzeTree(env, localMake);
1186 compileStates.put(env, CompileState.FLOW);
1188 if (shouldStop(CompileState.FLOW))
1189 return;
1191 results.add(env);
1192 }
1193 finally {
1194 log.useSource(prev);
1195 }
1196 }
1197 finally {
1198 if (taskListener != null) {
1199 TaskEvent e = new TaskEvent(TaskEvent.Kind.ANALYZE, env.toplevel, env.enclClass.sym);
1200 taskListener.finished(e);
1201 }
1202 }
1203 }
1205 /**
1206 * Prepare attributed parse trees, in conjunction with their attribution contexts,
1207 * for source or code generation.
1208 * If any errors occur, an empty list will be returned.
1209 * @returns a list containing the classes to be generated
1210 */
1211 public Queue<Pair<Env<AttrContext>, JCClassDecl>> desugar(Queue<Env<AttrContext>> envs) {
1212 ListBuffer<Pair<Env<AttrContext>, JCClassDecl>> results = lb();
1213 for (Env<AttrContext> env: envs)
1214 desugar(env, results);
1215 return stopIfError(CompileState.FLOW, results);
1216 }
1218 HashMap<Env<AttrContext>, Queue<Pair<Env<AttrContext>, JCClassDecl>>> desugaredEnvs =
1219 new HashMap<Env<AttrContext>, Queue<Pair<Env<AttrContext>, JCClassDecl>>>();
1221 /**
1222 * Prepare attributed parse trees, in conjunction with their attribution contexts,
1223 * for source or code generation. If the file was not listed on the command line,
1224 * the current implicitSourcePolicy is taken into account.
1225 * The preparation stops as soon as an error is found.
1226 */
1227 protected void desugar(final Env<AttrContext> env, Queue<Pair<Env<AttrContext>, JCClassDecl>> results) {
1228 if (shouldStop(CompileState.TRANSTYPES))
1229 return;
1231 if (implicitSourcePolicy == ImplicitSourcePolicy.NONE
1232 && !inputFiles.contains(env.toplevel.sourcefile)) {
1233 return;
1234 }
1236 if (compileStates.isDone(env, CompileState.LOWER)) {
1237 results.addAll(desugaredEnvs.get(env));
1238 return;
1239 }
1241 /**
1242 * Ensure that superclasses of C are desugared before C itself. This is
1243 * required for two reasons: (i) as erasure (TransTypes) destroys
1244 * information needed in flow analysis and (ii) as some checks carried
1245 * out during lowering require that all synthetic fields/methods have
1246 * already been added to C and its superclasses.
1247 */
1248 class ScanNested extends TreeScanner {
1249 Set<Env<AttrContext>> dependencies = new LinkedHashSet<Env<AttrContext>>();
1250 @Override
1251 public void visitClassDef(JCClassDecl node) {
1252 Type st = types.supertype(node.sym.type);
1253 if (st.tag == TypeTags.CLASS) {
1254 ClassSymbol c = st.tsym.outermostClass();
1255 Env<AttrContext> stEnv = enter.getEnv(c);
1256 if (stEnv != null && env != stEnv) {
1257 if (dependencies.add(stEnv))
1258 scan(stEnv.tree);
1259 }
1260 }
1261 super.visitClassDef(node);
1262 }
1263 }
1264 ScanNested scanner = new ScanNested();
1265 scanner.scan(env.tree);
1266 for (Env<AttrContext> dep: scanner.dependencies) {
1267 if (!compileStates.isDone(dep, CompileState.FLOW))
1268 desugaredEnvs.put(dep, desugar(flow(attribute(dep))));
1269 }
1271 //We need to check for error another time as more classes might
1272 //have been attributed and analyzed at this stage
1273 if (shouldStop(CompileState.TRANSTYPES))
1274 return;
1276 if (verboseCompilePolicy)
1277 printNote("[desugar " + env.enclClass.sym + "]");
1279 JavaFileObject prev = log.useSource(env.enclClass.sym.sourcefile != null ?
1280 env.enclClass.sym.sourcefile :
1281 env.toplevel.sourcefile);
1282 try {
1283 //save tree prior to rewriting
1284 JCTree untranslated = env.tree;
1286 make.at(Position.FIRSTPOS);
1287 TreeMaker localMake = make.forToplevel(env.toplevel);
1289 if (env.tree instanceof JCCompilationUnit) {
1290 if (!(stubOutput || sourceOutput || printFlat)) {
1291 if (shouldStop(CompileState.LOWER))
1292 return;
1293 List<JCTree> pdef = lower.translateTopLevelClass(env, env.tree, localMake);
1294 if (pdef.head != null) {
1295 assert pdef.tail.isEmpty();
1296 results.add(new Pair<Env<AttrContext>, JCClassDecl>(env, (JCClassDecl)pdef.head));
1297 }
1298 }
1299 return;
1300 }
1302 if (stubOutput) {
1303 //emit stub Java source file, only for compilation
1304 //units enumerated explicitly on the command line
1305 JCClassDecl cdef = (JCClassDecl)env.tree;
1306 if (untranslated instanceof JCClassDecl &&
1307 rootClasses.contains((JCClassDecl)untranslated) &&
1308 ((cdef.mods.flags & (Flags.PROTECTED|Flags.PUBLIC)) != 0 ||
1309 cdef.sym.packge().getQualifiedName() == names.java_lang)) {
1310 results.add(new Pair<Env<AttrContext>, JCClassDecl>(env, removeMethodBodies(cdef)));
1311 }
1312 return;
1313 }
1315 if (shouldStop(CompileState.TRANSTYPES))
1316 return;
1318 env.tree = transTypes.translateTopLevelClass(env.tree, localMake);
1319 compileStates.put(env, CompileState.TRANSTYPES);
1321 if (shouldStop(CompileState.LOWER))
1322 return;
1324 if (sourceOutput) {
1325 //emit standard Java source file, only for compilation
1326 //units enumerated explicitly on the command line
1327 JCClassDecl cdef = (JCClassDecl)env.tree;
1328 if (untranslated instanceof JCClassDecl &&
1329 rootClasses.contains((JCClassDecl)untranslated)) {
1330 results.add(new Pair<Env<AttrContext>, JCClassDecl>(env, cdef));
1331 }
1332 return;
1333 }
1335 //translate out inner classes
1336 List<JCTree> cdefs = lower.translateTopLevelClass(env, env.tree, localMake);
1337 compileStates.put(env, CompileState.LOWER);
1339 if (shouldStop(CompileState.LOWER))
1340 return;
1342 //generate code for each class
1343 for (List<JCTree> l = cdefs; l.nonEmpty(); l = l.tail) {
1344 JCClassDecl cdef = (JCClassDecl)l.head;
1345 results.add(new Pair<Env<AttrContext>, JCClassDecl>(env, cdef));
1346 }
1347 }
1348 finally {
1349 log.useSource(prev);
1350 }
1352 }
1354 /** Generates the source or class file for a list of classes.
1355 * The decision to generate a source file or a class file is
1356 * based upon the compiler's options.
1357 * Generation stops if an error occurs while writing files.
1358 */
1359 public void generate(Queue<Pair<Env<AttrContext>, JCClassDecl>> queue) {
1360 generate(queue, null);
1361 }
1363 public void generate(Queue<Pair<Env<AttrContext>, JCClassDecl>> queue, Queue<JavaFileObject> results) {
1364 if (shouldStop(CompileState.GENERATE))
1365 return;
1367 boolean usePrintSource = (stubOutput || sourceOutput || printFlat);
1369 for (Pair<Env<AttrContext>, JCClassDecl> x: queue) {
1370 Env<AttrContext> env = x.fst;
1371 JCClassDecl cdef = x.snd;
1373 if (verboseCompilePolicy) {
1374 printNote("[generate "
1375 + (usePrintSource ? " source" : "code")
1376 + " " + cdef.sym + "]");
1377 }
1379 if (taskListener != null) {
1380 TaskEvent e = new TaskEvent(TaskEvent.Kind.GENERATE, env.toplevel, cdef.sym);
1381 taskListener.started(e);
1382 }
1384 JavaFileObject prev = log.useSource(env.enclClass.sym.sourcefile != null ?
1385 env.enclClass.sym.sourcefile :
1386 env.toplevel.sourcefile);
1387 try {
1388 JavaFileObject file;
1389 if (usePrintSource)
1390 file = printSource(env, cdef);
1391 else
1392 file = genCode(env, cdef);
1393 if (results != null && file != null)
1394 results.add(file);
1395 } catch (IOException ex) {
1396 log.error(cdef.pos(), "class.cant.write",
1397 cdef.sym, ex.getMessage());
1398 return;
1399 } finally {
1400 log.useSource(prev);
1401 }
1403 if (taskListener != null) {
1404 TaskEvent e = new TaskEvent(TaskEvent.Kind.GENERATE, env.toplevel, cdef.sym);
1405 taskListener.finished(e);
1406 }
1407 }
1408 }
1410 // where
1411 Map<JCCompilationUnit, Queue<Env<AttrContext>>> groupByFile(Queue<Env<AttrContext>> envs) {
1412 // use a LinkedHashMap to preserve the order of the original list as much as possible
1413 Map<JCCompilationUnit, Queue<Env<AttrContext>>> map = new LinkedHashMap<JCCompilationUnit, Queue<Env<AttrContext>>>();
1414 for (Env<AttrContext> env: envs) {
1415 Queue<Env<AttrContext>> sublist = map.get(env.toplevel);
1416 if (sublist == null) {
1417 sublist = new ListBuffer<Env<AttrContext>>();
1418 map.put(env.toplevel, sublist);
1419 }
1420 sublist.add(env);
1421 }
1422 return map;
1423 }
1425 JCClassDecl removeMethodBodies(JCClassDecl cdef) {
1426 final boolean isInterface = (cdef.mods.flags & Flags.INTERFACE) != 0;
1427 class MethodBodyRemover extends TreeTranslator {
1428 @Override
1429 public void visitMethodDef(JCMethodDecl tree) {
1430 tree.mods.flags &= ~Flags.SYNCHRONIZED;
1431 for (JCVariableDecl vd : tree.params)
1432 vd.mods.flags &= ~Flags.FINAL;
1433 tree.body = null;
1434 super.visitMethodDef(tree);
1435 }
1436 @Override
1437 public void visitVarDef(JCVariableDecl tree) {
1438 if (tree.init != null && tree.init.type.constValue() == null)
1439 tree.init = null;
1440 super.visitVarDef(tree);
1441 }
1442 @Override
1443 public void visitClassDef(JCClassDecl tree) {
1444 ListBuffer<JCTree> newdefs = lb();
1445 for (List<JCTree> it = tree.defs; it.tail != null; it = it.tail) {
1446 JCTree t = it.head;
1447 switch (t.getTag()) {
1448 case JCTree.CLASSDEF:
1449 if (isInterface ||
1450 (((JCClassDecl) t).mods.flags & (Flags.PROTECTED|Flags.PUBLIC)) != 0 ||
1451 (((JCClassDecl) t).mods.flags & (Flags.PRIVATE)) == 0 && ((JCClassDecl) t).sym.packge().getQualifiedName() == names.java_lang)
1452 newdefs.append(t);
1453 break;
1454 case JCTree.METHODDEF:
1455 if (isInterface ||
1456 (((JCMethodDecl) t).mods.flags & (Flags.PROTECTED|Flags.PUBLIC)) != 0 ||
1457 ((JCMethodDecl) t).sym.name == names.init ||
1458 (((JCMethodDecl) t).mods.flags & (Flags.PRIVATE)) == 0 && ((JCMethodDecl) t).sym.packge().getQualifiedName() == names.java_lang)
1459 newdefs.append(t);
1460 break;
1461 case JCTree.VARDEF:
1462 if (isInterface || (((JCVariableDecl) t).mods.flags & (Flags.PROTECTED|Flags.PUBLIC)) != 0 ||
1463 (((JCVariableDecl) t).mods.flags & (Flags.PRIVATE)) == 0 && ((JCVariableDecl) t).sym.packge().getQualifiedName() == names.java_lang)
1464 newdefs.append(t);
1465 break;
1466 default:
1467 break;
1468 }
1469 }
1470 tree.defs = newdefs.toList();
1471 super.visitClassDef(tree);
1472 }
1473 }
1474 MethodBodyRemover r = new MethodBodyRemover();
1475 return r.translate(cdef);
1476 }
1478 public void reportDeferredDiagnostics() {
1479 if (annotationProcessingOccurred
1480 && implicitSourceFilesRead
1481 && implicitSourcePolicy == ImplicitSourcePolicy.UNSET) {
1482 if (explicitAnnotationProcessingRequested())
1483 log.warning("proc.use.implicit");
1484 else
1485 log.warning("proc.use.proc.or.implicit");
1486 }
1487 chk.reportDeferredDiagnostics();
1488 }
1490 /** Close the compiler, flushing the logs
1491 */
1492 public void close() {
1493 close(true);
1494 }
1496 public void close(boolean disposeNames) {
1497 rootClasses = null;
1498 reader = null;
1499 make = null;
1500 writer = null;
1501 enter = null;
1502 if (todo != null)
1503 todo.clear();
1504 todo = null;
1505 parserFactory = null;
1506 syms = null;
1507 source = null;
1508 attr = null;
1509 chk = null;
1510 gen = null;
1511 flow = null;
1512 transTypes = null;
1513 lower = null;
1514 annotate = null;
1515 types = null;
1517 log.flush();
1518 try {
1519 fileManager.flush();
1520 } catch (IOException e) {
1521 throw new Abort(e);
1522 } finally {
1523 if (names != null && disposeNames)
1524 names.dispose();
1525 names = null;
1526 }
1527 }
1529 protected void printNote(String lines) {
1530 Log.printLines(log.noticeWriter, lines);
1531 }
1533 /** Output for "-verbose" option.
1534 * @param key The key to look up the correct internationalized string.
1535 * @param arg An argument for substitution into the output string.
1536 */
1537 protected void printVerbose(String key, Object arg) {
1538 log.printNoteLines("verbose." + key, arg);
1539 }
1541 /** Print numbers of errors and warnings.
1542 */
1543 protected void printCount(String kind, int count) {
1544 if (count != 0) {
1545 String key;
1546 if (count == 1)
1547 key = "count." + kind;
1548 else
1549 key = "count." + kind + ".plural";
1550 log.printErrLines(key, String.valueOf(count));
1551 log.errWriter.flush();
1552 }
1553 }
1555 private static long now() {
1556 return System.currentTimeMillis();
1557 }
1559 private static long elapsed(long then) {
1560 return now() - then;
1561 }
1563 public void initRound(JavaCompiler prev) {
1564 keepComments = prev.keepComments;
1565 start_msec = prev.start_msec;
1566 hasBeenUsed = true;
1567 }
1569 public static void enableLogging() {
1570 Logger logger = Logger.getLogger(com.sun.tools.javac.Main.class.getPackage().getName());
1571 logger.setLevel(Level.ALL);
1572 for (Handler h : logger.getParent().getHandlers()) {
1573 h.setLevel(Level.ALL);
1574 }
1576 }
1577 }