log.java

GJC（Generic Java Compiler）编译器

            printLines(errWriter, getLocalizedString("source.unavailable"));
        }
        finally { errWriter.flush();
                } }

    /**
      * Print the text of a message, translating newlines approprately
      *  for the platform.
      */
    public static void printLines(PrintWriter writer, String msg) {
        int nl;
        while ((nl = msg.indexOf('\n')) != -1) {
            writer.println(msg.substring(0, nl));
            msg = msg.substring(nl + 1);
        }
        if (msg.length() != 0)
            writer.println(msg);
    }

    /**
      * Print an error or warning message.
      *  @param pos    The source position at which to report the message.
      *  @param msg    The message to report.
      */
    private void printError(int pos, String msg, PrintWriter writer) {
        if (pos == Position.NOPOS) {
            writer.print( getText("compiler.err.error", null, null, null, null, null,
                    null, null));
            printLines(writer, msg);
        } else {
            int line = Position.line(pos);
            int col = Position.column(pos);
            printLines(writer, sourcename + ":" + line + ": " + msg);
            printErrLine(line, col, writer);
        }
        writer.flush();
    }

    /**
      * Report an error, unless another error was already reported at same
      *  source position.
      *  @param pos    The source position at which to report the error.
      *  @param key    The error message to report.
      */
    public void error(int pos, String key) {
        error(pos, key, null, null, null, null, null, null, null);
    }

    public void error(int pos, String key, String arg0) {
        error(pos, key, arg0, null, null, null, null, null, null);
    }

    public void error(int pos, String key, String arg0, String arg1) {
        error(pos, key, arg0, arg1, null, null, null, null, null);
    }

    public void error(int pos, String key, String arg0, String arg1, String arg2) {
        error(pos, key, arg0, arg1, arg2, null, null, null, null);
    }

    public void error(int pos, String key, String arg0, String arg1, String arg2,
            String arg3) {
        error(pos, key, arg0, arg1, arg2, arg3, null, null, null);
    }

    public void error(int pos, String key, String arg0, String arg1, String arg2,
            String arg3, String arg4) {
        error(pos, key, arg0, arg1, arg2, arg3, arg4, null, null);
    }

    public void error(int pos, String key, String arg0, String arg1, String arg2,
            String arg3, String arg4, String arg5) {
        error(pos, key, arg0, arg1, arg2, arg3, arg4, arg5, null);
    }

    public void error(int pos, String key, String arg0, String arg1, String arg2,
            String arg3, String arg4, String arg5, String arg6) {
        if (nerrors < MaxErrors) {
            Pair coords = new Pair(sourcename, new Integer(pos));
            if (!recorded.contains(coords)) {
                recorded.put(coords);
                String msg = getText("compiler.err." + key, arg0, arg1, arg2, arg3,
                        arg4, arg5, arg6);
                printError(pos, msg, errWriter);
                prompt();
                nerrors++;
            }
        }
    }

    /**
      * Report a warning.
      *  @param pos    The source position at which to report the warning.
      *  @param key    The key for the localized warning message.
      */
    public void warning(int pos, String key) {
        warning(pos, key, null, null, null, null);
    }

    public void warning(int pos, String key, String arg0) {
        warning(pos, key, arg0, null, null, null);
    }

    public void warning(int pos, String key, String arg0, String arg1) {
        warning(pos, key, arg0, arg1, null, null);
    }

    public void warning(int pos, String key, String arg0, String arg1, String arg2) {
        warning(pos, key, arg0, arg1, arg2, null);
    }

    public void warning(int pos, String key, String arg0, String arg1,
            String arg2, String arg3) {
        if (nwarnings < MaxWarnings && emitWarnings) {
            String msg = getText("compiler.warn." + key, arg0, arg1, arg2, arg3,
                    null, null, null);
            printError(pos,
                    getText("compiler.warn.warning", null, null, null, null,
                    null, null, null) + msg, warnWriter);
        }
        nwarnings++;
    }

    /**
      * Provide a non-fatal notification.
      *  @param key     The notification to send to System.err.
      */
    public void note(String key) {
        note(key, null);
    }

    public void note(String key, String arg0) {
        if (emitWarnings) {
            noticeWriter.print(
                    getText("compiler.note.note", null, null, null, null, null,
                    null, null));
            String msg = getText("compiler.note." + key, arg0, null, null, null,
                    null, null, null);
            printLines(noticeWriter, msg);
            noticeWriter.flush();
        }
    }

    /**
      * Find a localized string in the resource bundle.
      *  @param key     The key for the localized string.
      */
    public static String getLocalizedString(String key) {
        return getText("compiler.misc." + key, null, null, null, null, null,
                null, null);
    }

    public static String getLocalizedString(String key, String arg0) {
        return getText("compiler.misc." + key, arg0, null, null, null, null,
                null, null);
    }

    public static String getLocalizedString(String key, String arg0, String arg1) {
        return getText("compiler.misc." + key, arg0, arg1, null, null, null,
                null, null);
    }

    public static String getLocalizedString(String key, String arg0, String arg1,
            String arg2) {
        return getText("compiler.misc." + key, arg0, arg1, arg2, null, null,
                null, null);
    }

    public static String getLocalizedString(String key, String arg0, String arg1,
            String arg2, String arg3) {
        return getText("compiler.misc." + key, arg0, arg1, arg2, arg3, null,
                null, null);
    }
    private static final String compilerRB = "com.sun.tools.javac.v8.resources.compiler";
    private static ResourceBundle messageRB;

    /**
     * Initialize ResourceBundle.
     */
    private static void initResource() {
        try {
            messageRB = ResourceBundle.getBundle(compilerRB);
        } catch (MissingResourceException e) {
            throw new Error("Fatal: Resource for compiler is missing");
        }
    }

    /**
      * Get and format message string from resource.
      */
    public static String getText(String key, String arg0, String arg1,
            String arg2, String arg3, String arg4, String arg5, String arg6) {
        if (messageRB == null)
            initResource();
        try {
            String[] args = {arg0, arg1, arg2, arg3, arg4, arg5, arg6};
            return MessageFormat.format(messageRB.getString(key), args);
        } catch (MissingResourceException e) {
            if (arg0 == null)
                arg0 = "null";
            if (arg1 == null)
                arg1 = "null";
            if (arg2 == null)
                arg2 = "null";
            if (arg3 == null)
                arg3 = "null";
            if (arg4 == null)
                arg4 = "null";
            if (arg5 == null)
                arg5 = "null";
            if (arg6 == null)
                arg6 = "null";
            String[] args = {key, arg0, arg1, arg2, arg3, arg4, arg5, arg6};
            String msg = "compiler message file broken: key={0} arguments={1}, {2}, {3}, {4}, {5}, {6}, {7}";
            return MessageFormat.format(msg, args);
        }
    }

    /**
      * print an error or warning message:
      */
    private void printRawError(int pos, String msg) {
        if (pos == Position.NOPOS) {
            printLines(errWriter, "error: " + msg);
        } else {
            int line = Position.line(pos);
            int col = Position.column(pos);
            printLines(errWriter, sourcename + ":" + line + ": " + msg);
            printErrLine(line, col, errWriter);
        }
        errWriter.flush();
    }

    /**
      * report an error:
      */
    public void rawError(int pos, String msg) {
        if (nerrors < MaxErrors) {
            Pair coords = new Pair(sourcename, new Integer(pos));
            if (!recorded.contains(coords)) {
                recorded.put(coords);
                printRawError(pos, msg);
                prompt();
                nerrors++;
            }
        }
        errWriter.flush();
    }

    /**
      * report a warning:
      */
    public void rawWarning(int pos, String msg) {
        if (nwarnings < MaxWarnings && emitWarnings) {
            printRawError(pos, "warning: " + msg);
        }
        nwarnings++;
        errWriter.flush();
    }
}