src/share/classes/com/sun/tools/javac/util/Log.java

changeset 0
959103a6100f
child 2525
2eb010b6cb22
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/classes/com/sun/tools/javac/util/Log.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,738 @@
     1.4 +/*
     1.5 + * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Oracle designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Oracle in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 + * or visit www.oracle.com if you need additional information or have any
    1.26 + * questions.
    1.27 + */
    1.28 +
    1.29 +package com.sun.tools.javac.util;
    1.30 +
    1.31 +import java.io.*;
    1.32 +import java.util.Arrays;
    1.33 +import java.util.EnumSet;
    1.34 +import java.util.HashSet;
    1.35 +import java.util.Queue;
    1.36 +import java.util.Set;
    1.37 +import javax.tools.DiagnosticListener;
    1.38 +import javax.tools.JavaFileObject;
    1.39 +
    1.40 +import com.sun.tools.javac.api.DiagnosticFormatter;
    1.41 +import com.sun.tools.javac.main.Main;
    1.42 +import com.sun.tools.javac.main.Option;
    1.43 +import com.sun.tools.javac.tree.EndPosTable;
    1.44 +import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition;
    1.45 +import com.sun.tools.javac.util.JCDiagnostic.DiagnosticType;
    1.46 +
    1.47 +import static com.sun.tools.javac.main.Option.*;
    1.48 +
    1.49 +/** A class for error logs. Reports errors and warnings, and
    1.50 + *  keeps track of error numbers and positions.
    1.51 + *
    1.52 + *  <p><b>This is NOT part of any supported API.
    1.53 + *  If you write code that depends on this, you do so at your own risk.
    1.54 + *  This code and its internal interfaces are subject to change or
    1.55 + *  deletion without notice.</b>
    1.56 + */
    1.57 +public class Log extends AbstractLog {
    1.58 +    /** The context key for the log. */
    1.59 +    public static final Context.Key<Log> logKey
    1.60 +        = new Context.Key<Log>();
    1.61 +
    1.62 +    /** The context key for the output PrintWriter. */
    1.63 +    public static final Context.Key<PrintWriter> outKey =
    1.64 +        new Context.Key<PrintWriter>();
    1.65 +
    1.66 +    /* TODO: Should unify this with prefix handling in JCDiagnostic.Factory. */
    1.67 +    public enum PrefixKind {
    1.68 +        JAVAC("javac."),
    1.69 +        COMPILER_MISC("compiler.misc.");
    1.70 +        PrefixKind(String v) {
    1.71 +            value = v;
    1.72 +        }
    1.73 +        public String key(String k) {
    1.74 +            return value + k;
    1.75 +        }
    1.76 +        final String value;
    1.77 +    }
    1.78 +
    1.79 +    /**
    1.80 +     * DiagnosticHandler's provide the initial handling for diagnostics.
    1.81 +     * When a diagnostic handler is created and has been initialized, it
    1.82 +     * should install itself as the current diagnostic handler. When a
    1.83 +     * client has finished using a handler, the client should call
    1.84 +     * {@code log.removeDiagnosticHandler();}
    1.85 +     *
    1.86 +     * Note that javax.tools.DiagnosticListener (if set) is called later in the
    1.87 +     * diagnostic pipeline.
    1.88 +     */
    1.89 +    public static abstract class DiagnosticHandler {
    1.90 +        /**
    1.91 +         * The previously installed diagnostic handler.
    1.92 +         */
    1.93 +        protected DiagnosticHandler prev;
    1.94 +
    1.95 +        /**
    1.96 +         * Install this diagnostic handler as the current one,
    1.97 +         * recording the previous one.
    1.98 +         */
    1.99 +        protected void install(Log log) {
   1.100 +            prev = log.diagnosticHandler;
   1.101 +            log.diagnosticHandler = this;
   1.102 +        }
   1.103 +
   1.104 +        /**
   1.105 +         * Handle a diagnostic.
   1.106 +         */
   1.107 +        public abstract void report(JCDiagnostic diag);
   1.108 +    }
   1.109 +
   1.110 +    /**
   1.111 +     * A DiagnosticHandler that discards all diagnostics.
   1.112 +     */
   1.113 +    public static class DiscardDiagnosticHandler extends DiagnosticHandler {
   1.114 +        public DiscardDiagnosticHandler(Log log) {
   1.115 +            install(log);
   1.116 +        }
   1.117 +
   1.118 +        public void report(JCDiagnostic diag) { }
   1.119 +    }
   1.120 +
   1.121 +    /**
   1.122 +     * A DiagnosticHandler that can defer some or all diagnostics,
   1.123 +     * by buffering them for later examination and/or reporting.
   1.124 +     * If a diagnostic is not deferred, or is subsequently reported
   1.125 +     * with reportAllDiagnostics(), it will be reported to the previously
   1.126 +     * active diagnostic handler.
   1.127 +     */
   1.128 +    public static class DeferredDiagnosticHandler extends DiagnosticHandler {
   1.129 +        private Queue<JCDiagnostic> deferred = new ListBuffer<>();
   1.130 +        private final Filter<JCDiagnostic> filter;
   1.131 +
   1.132 +        public DeferredDiagnosticHandler(Log log) {
   1.133 +            this(log, null);
   1.134 +        }
   1.135 +
   1.136 +        public DeferredDiagnosticHandler(Log log, Filter<JCDiagnostic> filter) {
   1.137 +            this.filter = filter;
   1.138 +            install(log);
   1.139 +        }
   1.140 +
   1.141 +        public void report(JCDiagnostic diag) {
   1.142 +            if (!diag.isFlagSet(JCDiagnostic.DiagnosticFlag.NON_DEFERRABLE) &&
   1.143 +                (filter == null || filter.accepts(diag))) {
   1.144 +                deferred.add(diag);
   1.145 +            } else {
   1.146 +                prev.report(diag);
   1.147 +            }
   1.148 +        }
   1.149 +
   1.150 +        public Queue<JCDiagnostic> getDiagnostics() {
   1.151 +            return deferred;
   1.152 +        }
   1.153 +
   1.154 +        /** Report all deferred diagnostics. */
   1.155 +        public void reportDeferredDiagnostics() {
   1.156 +            reportDeferredDiagnostics(EnumSet.allOf(JCDiagnostic.Kind.class));
   1.157 +        }
   1.158 +
   1.159 +        /** Report selected deferred diagnostics. */
   1.160 +        public void reportDeferredDiagnostics(Set<JCDiagnostic.Kind> kinds) {
   1.161 +            JCDiagnostic d;
   1.162 +            while ((d = deferred.poll()) != null) {
   1.163 +                if (kinds.contains(d.getKind()))
   1.164 +                    prev.report(d);
   1.165 +            }
   1.166 +            deferred = null; // prevent accidental ongoing use
   1.167 +        }
   1.168 +    }
   1.169 +
   1.170 +    public enum WriterKind { NOTICE, WARNING, ERROR };
   1.171 +
   1.172 +    protected PrintWriter errWriter;
   1.173 +
   1.174 +    protected PrintWriter warnWriter;
   1.175 +
   1.176 +    protected PrintWriter noticeWriter;
   1.177 +
   1.178 +    /** The maximum number of errors/warnings that are reported.
   1.179 +     */
   1.180 +    protected int MaxErrors;
   1.181 +    protected int MaxWarnings;
   1.182 +
   1.183 +    /** Switch: prompt user on each error.
   1.184 +     */
   1.185 +    public boolean promptOnError;
   1.186 +
   1.187 +    /** Switch: emit warning messages.
   1.188 +     */
   1.189 +    public boolean emitWarnings;
   1.190 +
   1.191 +    /** Switch: suppress note messages.
   1.192 +     */
   1.193 +    public boolean suppressNotes;
   1.194 +
   1.195 +    /** Print stack trace on errors?
   1.196 +     */
   1.197 +    public boolean dumpOnError;
   1.198 +
   1.199 +    /** Print multiple errors for same source locations.
   1.200 +     */
   1.201 +    public boolean multipleErrors;
   1.202 +
   1.203 +    /**
   1.204 +     * Diagnostic listener, if provided through programmatic
   1.205 +     * interface to javac (JSR 199).
   1.206 +     */
   1.207 +    protected DiagnosticListener<? super JavaFileObject> diagListener;
   1.208 +
   1.209 +    /**
   1.210 +     * Formatter for diagnostics.
   1.211 +     */
   1.212 +    private DiagnosticFormatter<JCDiagnostic> diagFormatter;
   1.213 +
   1.214 +    /**
   1.215 +     * Keys for expected diagnostics.
   1.216 +     */
   1.217 +    public Set<String> expectDiagKeys;
   1.218 +
   1.219 +    /**
   1.220 +     * Set to true if a compressed diagnostic is reported
   1.221 +     */
   1.222 +    public boolean compressedOutput;
   1.223 +
   1.224 +    /**
   1.225 +     * JavacMessages object used for localization.
   1.226 +     */
   1.227 +    private JavacMessages messages;
   1.228 +
   1.229 +    /**
   1.230 +     * Handler for initial dispatch of diagnostics.
   1.231 +     */
   1.232 +    private DiagnosticHandler diagnosticHandler;
   1.233 +
   1.234 +    /** Construct a log with given I/O redirections.
   1.235 +     */
   1.236 +    protected Log(Context context, PrintWriter errWriter, PrintWriter warnWriter, PrintWriter noticeWriter) {
   1.237 +        super(JCDiagnostic.Factory.instance(context));
   1.238 +        context.put(logKey, this);
   1.239 +        this.errWriter = errWriter;
   1.240 +        this.warnWriter = warnWriter;
   1.241 +        this.noticeWriter = noticeWriter;
   1.242 +
   1.243 +        @SuppressWarnings("unchecked") // FIXME
   1.244 +        DiagnosticListener<? super JavaFileObject> dl =
   1.245 +            context.get(DiagnosticListener.class);
   1.246 +        this.diagListener = dl;
   1.247 +
   1.248 +        diagnosticHandler = new DefaultDiagnosticHandler();
   1.249 +
   1.250 +        messages = JavacMessages.instance(context);
   1.251 +        messages.add(Main.javacBundleName);
   1.252 +
   1.253 +        final Options options = Options.instance(context);
   1.254 +        initOptions(options);
   1.255 +        options.addListener(new Runnable() {
   1.256 +            public void run() {
   1.257 +                initOptions(options);
   1.258 +            }
   1.259 +        });
   1.260 +    }
   1.261 +    // where
   1.262 +        private void initOptions(Options options) {
   1.263 +            this.dumpOnError = options.isSet(DOE);
   1.264 +            this.promptOnError = options.isSet(PROMPT);
   1.265 +            this.emitWarnings = options.isUnset(XLINT_CUSTOM, "none");
   1.266 +            this.suppressNotes = options.isSet("suppressNotes");
   1.267 +            this.MaxErrors = getIntOption(options, XMAXERRS, getDefaultMaxErrors());
   1.268 +            this.MaxWarnings = getIntOption(options, XMAXWARNS, getDefaultMaxWarnings());
   1.269 +
   1.270 +            boolean rawDiagnostics = options.isSet("rawDiagnostics");
   1.271 +            this.diagFormatter = rawDiagnostics ? new RawDiagnosticFormatter(options) :
   1.272 +                                                  new BasicDiagnosticFormatter(options, messages);
   1.273 +
   1.274 +            String ek = options.get("expectKeys");
   1.275 +            if (ek != null)
   1.276 +                expectDiagKeys = new HashSet<String>(Arrays.asList(ek.split(", *")));
   1.277 +        }
   1.278 +
   1.279 +        private int getIntOption(Options options, Option option, int defaultValue) {
   1.280 +            String s = options.get(option);
   1.281 +            try {
   1.282 +                if (s != null) {
   1.283 +                    int n = Integer.parseInt(s);
   1.284 +                    return (n <= 0 ? Integer.MAX_VALUE : n);
   1.285 +                }
   1.286 +            } catch (NumberFormatException e) {
   1.287 +                // silently ignore ill-formed numbers
   1.288 +            }
   1.289 +            return defaultValue;
   1.290 +        }
   1.291 +
   1.292 +        /** Default value for -Xmaxerrs.
   1.293 +         */
   1.294 +        protected int getDefaultMaxErrors() {
   1.295 +            return 100;
   1.296 +        }
   1.297 +
   1.298 +        /** Default value for -Xmaxwarns.
   1.299 +         */
   1.300 +        protected int getDefaultMaxWarnings() {
   1.301 +            return 100;
   1.302 +        }
   1.303 +
   1.304 +    /** The default writer for diagnostics
   1.305 +     */
   1.306 +    static PrintWriter defaultWriter(Context context) {
   1.307 +        PrintWriter result = context.get(outKey);
   1.308 +        if (result == null)
   1.309 +            context.put(outKey, result = new PrintWriter(System.err));
   1.310 +        return result;
   1.311 +    }
   1.312 +
   1.313 +    /** Construct a log with default settings.
   1.314 +     */
   1.315 +    protected Log(Context context) {
   1.316 +        this(context, defaultWriter(context));
   1.317 +    }
   1.318 +
   1.319 +    /** Construct a log with all output redirected.
   1.320 +     */
   1.321 +    protected Log(Context context, PrintWriter defaultWriter) {
   1.322 +        this(context, defaultWriter, defaultWriter, defaultWriter);
   1.323 +    }
   1.324 +
   1.325 +    /** Get the Log instance for this context. */
   1.326 +    public static Log instance(Context context) {
   1.327 +        Log instance = context.get(logKey);
   1.328 +        if (instance == null)
   1.329 +            instance = new Log(context);
   1.330 +        return instance;
   1.331 +    }
   1.332 +
   1.333 +    /** The number of errors encountered so far.
   1.334 +     */
   1.335 +    public int nerrors = 0;
   1.336 +
   1.337 +    /** The number of warnings encountered so far.
   1.338 +     */
   1.339 +    public int nwarnings = 0;
   1.340 +
   1.341 +    /** A set of all errors generated so far. This is used to avoid printing an
   1.342 +     *  error message more than once. For each error, a pair consisting of the
   1.343 +     *  source file name and source code position of the error is added to the set.
   1.344 +     */
   1.345 +    private Set<Pair<JavaFileObject, Integer>> recorded = new HashSet<Pair<JavaFileObject,Integer>>();
   1.346 +
   1.347 +    public boolean hasDiagnosticListener() {
   1.348 +        return diagListener != null;
   1.349 +    }
   1.350 +
   1.351 +    public void setEndPosTable(JavaFileObject name, EndPosTable endPosTable) {
   1.352 +        name.getClass(); // null check
   1.353 +        getSource(name).setEndPosTable(endPosTable);
   1.354 +    }
   1.355 +
   1.356 +    /** Return current sourcefile.
   1.357 +     */
   1.358 +    public JavaFileObject currentSourceFile() {
   1.359 +        return source == null ? null : source.getFile();
   1.360 +    }
   1.361 +
   1.362 +    /** Get the current diagnostic formatter.
   1.363 +     */
   1.364 +    public DiagnosticFormatter<JCDiagnostic> getDiagnosticFormatter() {
   1.365 +        return diagFormatter;
   1.366 +    }
   1.367 +
   1.368 +    /** Set the current diagnostic formatter.
   1.369 +     */
   1.370 +    public void setDiagnosticFormatter(DiagnosticFormatter<JCDiagnostic> diagFormatter) {
   1.371 +        this.diagFormatter = diagFormatter;
   1.372 +    }
   1.373 +
   1.374 +    public PrintWriter getWriter(WriterKind kind) {
   1.375 +        switch (kind) {
   1.376 +            case NOTICE:    return noticeWriter;
   1.377 +            case WARNING:   return warnWriter;
   1.378 +            case ERROR:     return errWriter;
   1.379 +            default:        throw new IllegalArgumentException();
   1.380 +        }
   1.381 +    }
   1.382 +
   1.383 +    public void setWriter(WriterKind kind, PrintWriter pw) {
   1.384 +        pw.getClass();
   1.385 +        switch (kind) {
   1.386 +            case NOTICE:    noticeWriter = pw;  break;
   1.387 +            case WARNING:   warnWriter = pw;    break;
   1.388 +            case ERROR:     errWriter = pw;     break;
   1.389 +            default:        throw new IllegalArgumentException();
   1.390 +        }
   1.391 +    }
   1.392 +
   1.393 +    public void setWriters(PrintWriter pw) {
   1.394 +        pw.getClass();
   1.395 +        noticeWriter = warnWriter = errWriter = pw;
   1.396 +    }
   1.397 +
   1.398 +    /**
   1.399 +     * Propagate the previous log's information.
   1.400 +     */
   1.401 +    public void initRound(Log other) {
   1.402 +        this.noticeWriter = other.noticeWriter;
   1.403 +        this.warnWriter = other.warnWriter;
   1.404 +        this.errWriter = other.errWriter;
   1.405 +        this.sourceMap = other.sourceMap;
   1.406 +        this.recorded = other.recorded;
   1.407 +        this.nerrors = other.nerrors;
   1.408 +        this.nwarnings = other.nwarnings;
   1.409 +    }
   1.410 +
   1.411 +    /**
   1.412 +     * Replace the specified diagnostic handler with the
   1.413 +     * handler that was current at the time this handler was created.
   1.414 +     * The given handler must be the currently installed handler;
   1.415 +     * it must be specified explicitly for clarity and consistency checking.
   1.416 +     */
   1.417 +    public void popDiagnosticHandler(DiagnosticHandler h) {
   1.418 +        Assert.check(diagnosticHandler == h);
   1.419 +        diagnosticHandler = h.prev;
   1.420 +    }
   1.421 +
   1.422 +    /** Flush the logs
   1.423 +     */
   1.424 +    public void flush() {
   1.425 +        errWriter.flush();
   1.426 +        warnWriter.flush();
   1.427 +        noticeWriter.flush();
   1.428 +    }
   1.429 +
   1.430 +    public void flush(WriterKind kind) {
   1.431 +        getWriter(kind).flush();
   1.432 +    }
   1.433 +
   1.434 +    /** Returns true if an error needs to be reported for a given
   1.435 +     * source name and pos.
   1.436 +     */
   1.437 +    protected boolean shouldReport(JavaFileObject file, int pos) {
   1.438 +        if (multipleErrors || file == null)
   1.439 +            return true;
   1.440 +
   1.441 +        Pair<JavaFileObject,Integer> coords = new Pair<JavaFileObject,Integer>(file, pos);
   1.442 +        boolean shouldReport = !recorded.contains(coords);
   1.443 +        if (shouldReport)
   1.444 +            recorded.add(coords);
   1.445 +        return shouldReport;
   1.446 +    }
   1.447 +
   1.448 +    /** Prompt user after an error.
   1.449 +     */
   1.450 +    public void prompt() {
   1.451 +        if (promptOnError) {
   1.452 +            System.err.println(localize("resume.abort"));
   1.453 +            try {
   1.454 +                while (true) {
   1.455 +                    switch (System.in.read()) {
   1.456 +                    case 'a': case 'A':
   1.457 +                        System.exit(-1);
   1.458 +                        return;
   1.459 +                    case 'r': case 'R':
   1.460 +                        return;
   1.461 +                    case 'x': case 'X':
   1.462 +                        throw new AssertionError("user abort");
   1.463 +                    default:
   1.464 +                    }
   1.465 +                }
   1.466 +            } catch (IOException e) {}
   1.467 +        }
   1.468 +    }
   1.469 +
   1.470 +    /** Print the faulty source code line and point to the error.
   1.471 +     *  @param pos   Buffer index of the error position, must be on current line
   1.472 +     */
   1.473 +    private void printErrLine(int pos, PrintWriter writer) {
   1.474 +        String line = (source == null ? null : source.getLine(pos));
   1.475 +        if (line == null)
   1.476 +            return;
   1.477 +        int col = source.getColumnNumber(pos, false);
   1.478 +
   1.479 +        printRawLines(writer, line);
   1.480 +        for (int i = 0; i < col - 1; i++) {
   1.481 +            writer.print((line.charAt(i) == '\t') ? "\t" : " ");
   1.482 +        }
   1.483 +        writer.println("^");
   1.484 +        writer.flush();
   1.485 +    }
   1.486 +
   1.487 +    public void printNewline() {
   1.488 +        noticeWriter.println();
   1.489 +    }
   1.490 +
   1.491 +    public void printNewline(WriterKind wk) {
   1.492 +        getWriter(wk).println();
   1.493 +    }
   1.494 +
   1.495 +    public void printLines(String key, Object... args) {
   1.496 +        printRawLines(noticeWriter, localize(key, args));
   1.497 +    }
   1.498 +
   1.499 +    public void printLines(PrefixKind pk, String key, Object... args) {
   1.500 +        printRawLines(noticeWriter, localize(pk, key, args));
   1.501 +    }
   1.502 +
   1.503 +    public void printLines(WriterKind wk, String key, Object... args) {
   1.504 +        printRawLines(getWriter(wk), localize(key, args));
   1.505 +    }
   1.506 +
   1.507 +    public void printLines(WriterKind wk, PrefixKind pk, String key, Object... args) {
   1.508 +        printRawLines(getWriter(wk), localize(pk, key, args));
   1.509 +    }
   1.510 +
   1.511 +    /** Print the text of a message, translating newlines appropriately
   1.512 +     *  for the platform.
   1.513 +     */
   1.514 +    public void printRawLines(String msg) {
   1.515 +        printRawLines(noticeWriter, msg);
   1.516 +    }
   1.517 +
   1.518 +    /** Print the text of a message, translating newlines appropriately
   1.519 +     *  for the platform.
   1.520 +     */
   1.521 +    public void printRawLines(WriterKind kind, String msg) {
   1.522 +        printRawLines(getWriter(kind), msg);
   1.523 +    }
   1.524 +
   1.525 +    /** Print the text of a message, translating newlines appropriately
   1.526 +     *  for the platform.
   1.527 +     */
   1.528 +    public static void printRawLines(PrintWriter writer, String msg) {
   1.529 +        int nl;
   1.530 +        while ((nl = msg.indexOf('\n')) != -1) {
   1.531 +            writer.println(msg.substring(0, nl));
   1.532 +            msg = msg.substring(nl+1);
   1.533 +        }
   1.534 +        if (msg.length() != 0) writer.println(msg);
   1.535 +    }
   1.536 +
   1.537 +    /**
   1.538 +     * Print the localized text of a "verbose" message to the
   1.539 +     * noticeWriter stream.
   1.540 +     */
   1.541 +    public void printVerbose(String key, Object... args) {
   1.542 +        printRawLines(noticeWriter, localize("verbose." + key, args));
   1.543 +    }
   1.544 +
   1.545 +    protected void directError(String key, Object... args) {
   1.546 +        printRawLines(errWriter, localize(key, args));
   1.547 +        errWriter.flush();
   1.548 +    }
   1.549 +
   1.550 +    /** Report a warning that cannot be suppressed.
   1.551 +     *  @param pos    The source position at which to report the warning.
   1.552 +     *  @param key    The key for the localized warning message.
   1.553 +     *  @param args   Fields of the warning message.
   1.554 +     */
   1.555 +    public void strictWarning(DiagnosticPosition pos, String key, Object ... args) {
   1.556 +        writeDiagnostic(diags.warning(source, pos, key, args));
   1.557 +        nwarnings++;
   1.558 +    }
   1.559 +
   1.560 +    /**
   1.561 +     * Primary method to report a diagnostic.
   1.562 +     * @param diagnostic
   1.563 +     */
   1.564 +    public void report(JCDiagnostic diagnostic) {
   1.565 +        diagnosticHandler.report(diagnostic);
   1.566 +     }
   1.567 +
   1.568 +    /**
   1.569 +     * Common diagnostic handling.
   1.570 +     * The diagnostic is counted, and depending on the options and how many diagnostics have been
   1.571 +     * reported so far, the diagnostic may be handed off to writeDiagnostic.
   1.572 +     */
   1.573 +    private class DefaultDiagnosticHandler extends DiagnosticHandler {
   1.574 +        public void report(JCDiagnostic diagnostic) {
   1.575 +            if (expectDiagKeys != null)
   1.576 +                expectDiagKeys.remove(diagnostic.getCode());
   1.577 +
   1.578 +            switch (diagnostic.getType()) {
   1.579 +            case FRAGMENT:
   1.580 +                throw new IllegalArgumentException();
   1.581 +
   1.582 +            case NOTE:
   1.583 +                // Print out notes only when we are permitted to report warnings
   1.584 +                // Notes are only generated at the end of a compilation, so should be small
   1.585 +                // in number.
   1.586 +                if ((emitWarnings || diagnostic.isMandatory()) && !suppressNotes) {
   1.587 +                    writeDiagnostic(diagnostic);
   1.588 +                }
   1.589 +                break;
   1.590 +
   1.591 +            case WARNING:
   1.592 +                if (emitWarnings || diagnostic.isMandatory()) {
   1.593 +                    if (nwarnings < MaxWarnings) {
   1.594 +                        writeDiagnostic(diagnostic);
   1.595 +                        nwarnings++;
   1.596 +                    }
   1.597 +                }
   1.598 +                break;
   1.599 +
   1.600 +            case ERROR:
   1.601 +                if (nerrors < MaxErrors
   1.602 +                    && shouldReport(diagnostic.getSource(), diagnostic.getIntPosition())) {
   1.603 +                    writeDiagnostic(diagnostic);
   1.604 +                    nerrors++;
   1.605 +                }
   1.606 +                break;
   1.607 +            }
   1.608 +            if (diagnostic.isFlagSet(JCDiagnostic.DiagnosticFlag.COMPRESSED)) {
   1.609 +                compressedOutput = true;
   1.610 +            }
   1.611 +        }
   1.612 +    }
   1.613 +
   1.614 +    /**
   1.615 +     * Write out a diagnostic.
   1.616 +     */
   1.617 +    protected void writeDiagnostic(JCDiagnostic diag) {
   1.618 +        if (diagListener != null) {
   1.619 +            diagListener.report(diag);
   1.620 +            return;
   1.621 +        }
   1.622 +
   1.623 +        PrintWriter writer = getWriterForDiagnosticType(diag.getType());
   1.624 +
   1.625 +        printRawLines(writer, diagFormatter.format(diag, messages.getCurrentLocale()));
   1.626 +
   1.627 +        if (promptOnError) {
   1.628 +            switch (diag.getType()) {
   1.629 +            case ERROR:
   1.630 +            case WARNING:
   1.631 +                prompt();
   1.632 +            }
   1.633 +        }
   1.634 +
   1.635 +        if (dumpOnError)
   1.636 +            new RuntimeException().printStackTrace(writer);
   1.637 +
   1.638 +        writer.flush();
   1.639 +    }
   1.640 +
   1.641 +    @Deprecated
   1.642 +    protected PrintWriter getWriterForDiagnosticType(DiagnosticType dt) {
   1.643 +        switch (dt) {
   1.644 +        case FRAGMENT:
   1.645 +            throw new IllegalArgumentException();
   1.646 +
   1.647 +        case NOTE:
   1.648 +            return noticeWriter;
   1.649 +
   1.650 +        case WARNING:
   1.651 +            return warnWriter;
   1.652 +
   1.653 +        case ERROR:
   1.654 +            return errWriter;
   1.655 +
   1.656 +        default:
   1.657 +            throw new Error();
   1.658 +        }
   1.659 +    }
   1.660 +
   1.661 +    /** Find a localized string in the resource bundle.
   1.662 +     *  Because this method is static, it ignores the locale.
   1.663 +     *  Use localize(key, args) when possible.
   1.664 +     *  @param key    The key for the localized string.
   1.665 +     *  @param args   Fields to substitute into the string.
   1.666 +     */
   1.667 +    public static String getLocalizedString(String key, Object ... args) {
   1.668 +        return JavacMessages.getDefaultLocalizedString(PrefixKind.COMPILER_MISC.key(key), args);
   1.669 +    }
   1.670 +
   1.671 +    /** Find a localized string in the resource bundle.
   1.672 +     *  @param key    The key for the localized string.
   1.673 +     *  @param args   Fields to substitute into the string.
   1.674 +     */
   1.675 +    public String localize(String key, Object... args) {
   1.676 +        return localize(PrefixKind.COMPILER_MISC, key, args);
   1.677 +    }
   1.678 +
   1.679 +    /** Find a localized string in the resource bundle.
   1.680 +     *  @param key    The key for the localized string.
   1.681 +     *  @param args   Fields to substitute into the string.
   1.682 +     */
   1.683 +    public String localize(PrefixKind pk, String key, Object... args) {
   1.684 +        if (useRawMessages)
   1.685 +            return pk.key(key);
   1.686 +        else
   1.687 +            return messages.getLocalizedString(pk.key(key), args);
   1.688 +    }
   1.689 +    // where
   1.690 +        // backdoor hook for testing, should transition to use -XDrawDiagnostics
   1.691 +        private static boolean useRawMessages = false;
   1.692 +
   1.693 +/***************************************************************************
   1.694 + * raw error messages without internationalization; used for experimentation
   1.695 + * and quick prototyping
   1.696 + ***************************************************************************/
   1.697 +
   1.698 +    /** print an error or warning message:
   1.699 +     */
   1.700 +    private void printRawError(int pos, String msg) {
   1.701 +        if (source == null || pos == Position.NOPOS) {
   1.702 +            printRawLines(errWriter, "error: " + msg);
   1.703 +        } else {
   1.704 +            int line = source.getLineNumber(pos);
   1.705 +            JavaFileObject file = source.getFile();
   1.706 +            if (file != null)
   1.707 +                printRawLines(errWriter,
   1.708 +                           file.getName() + ":" +
   1.709 +                           line + ": " + msg);
   1.710 +            printErrLine(pos, errWriter);
   1.711 +        }
   1.712 +        errWriter.flush();
   1.713 +    }
   1.714 +
   1.715 +    /** report an error:
   1.716 +     */
   1.717 +    public void rawError(int pos, String msg) {
   1.718 +        if (nerrors < MaxErrors && shouldReport(currentSourceFile(), pos)) {
   1.719 +            printRawError(pos, msg);
   1.720 +            prompt();
   1.721 +            nerrors++;
   1.722 +        }
   1.723 +        errWriter.flush();
   1.724 +    }
   1.725 +
   1.726 +    /** report a warning:
   1.727 +     */
   1.728 +    public void rawWarning(int pos, String msg) {
   1.729 +        if (nwarnings < MaxWarnings && emitWarnings) {
   1.730 +            printRawError(pos, "warning: " + msg);
   1.731 +        }
   1.732 +        prompt();
   1.733 +        nwarnings++;
   1.734 +        errWriter.flush();
   1.735 +    }
   1.736 +
   1.737 +    public static String format(String fmt, Object... args) {
   1.738 +        return String.format((java.util.Locale)null, fmt, args);
   1.739 +    }
   1.740 +
   1.741 +}

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