| /* |
| * Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package com.sun.tools.javac.util; |
| |
| import java.net.URI; |
| import java.text.MessageFormat; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.MissingResourceException; |
| import java.util.ResourceBundle; |
| |
| import javax.tools.Diagnostic; |
| import javax.tools.FileObject; |
| import javax.tools.JavaFileObject; |
| |
| import com.sun.tools.javac.tree.JCTree; |
| |
| import static com.sun.tools.javac.util.JCDiagnostic.DiagnosticType.*; |
| |
| /** An abstraction of a diagnostic message generated by the compiler. |
| * |
| * <p><b>This is NOT part of any API supported by Sun Microsystems. If |
| * you write code that depends on this, you do so at your own risk. |
| * This code and its internal interfaces are subject to change or |
| * deletion without notice.</b> |
| */ |
| public class JCDiagnostic implements Diagnostic<JavaFileObject> { |
| /** A factory for creating diagnostic objects. */ |
| public static class Factory { |
| /** The context key for the diagnostic factory. */ |
| protected static final Context.Key<JCDiagnostic.Factory> diagnosticFactoryKey = |
| new Context.Key<JCDiagnostic.Factory>(); |
| |
| /** Get the Factory instance for this context. */ |
| public static Factory instance(Context context) { |
| Factory instance = context.get(diagnosticFactoryKey); |
| if (instance == null) |
| instance = new Factory(context); |
| return instance; |
| } |
| |
| final Messages messages; |
| final String prefix; |
| |
| /** Create a new diagnostic factory. */ |
| protected Factory(Context context) { |
| context.put(diagnosticFactoryKey, this); |
| messages = Messages.instance(context); |
| prefix = "compiler"; |
| } |
| |
| /** Create a new diagnostic factory. */ |
| public Factory(Messages messages, String prefix) { |
| this.messages = messages; |
| this.prefix = prefix; |
| } |
| |
| /** |
| * Create an error diagnostic. |
| * @param source The source of the compilation unit, if any, in which to report the error. |
| * @param pos The source position at which to report the error. |
| * @param key The key for the localized error message. |
| * @param args Fields of the error message. |
| */ |
| public JCDiagnostic error( |
| DiagnosticSource source, DiagnosticPosition pos, String key, Object... args) { |
| return new JCDiagnostic(messages, ERROR, true, source, pos, qualify(ERROR, key), args); |
| } |
| |
| /** |
| * Create a warning diagnostic that will not be hidden by the -nowarn or -Xlint:none options. |
| * @param source The source of the compilation unit, if any, in which to report the warning. |
| * @param pos The source position at which to report the warning. |
| * @param key The key for the localized error message. |
| * @param args Fields of the error message. |
| * @see MandatoryWarningHandler |
| */ |
| public JCDiagnostic mandatoryWarning( |
| DiagnosticSource source, DiagnosticPosition pos, String key, Object... args) { |
| return new JCDiagnostic(messages, WARNING, true, source, pos, qualify(WARNING, key), args); |
| } |
| |
| /** |
| * Create a warning diagnostic. |
| * @param source The source of the compilation unit, if any, in which to report the warning. |
| * @param pos The source position at which to report the warning. |
| * @param key The key for the localized error message. |
| * @param args Fields of the error message. |
| */ |
| public JCDiagnostic warning( |
| DiagnosticSource source, DiagnosticPosition pos, String key, Object... args) { |
| return new JCDiagnostic(messages, WARNING, false, source, pos, qualify(WARNING, key), args); |
| } |
| |
| /** |
| * Create a note diagnostic that will not be hidden by the -nowarn or -Xlint:none options. |
| * @param key The key for the localized error message. |
| * @param args Fields of the error message. |
| * @see MandatoryWarningHandler |
| */ |
| public JCDiagnostic mandatoryNote(DiagnosticSource source, String key, Object... args) { |
| return new JCDiagnostic(messages, NOTE, true, source, null, qualify(NOTE, key), args); |
| } |
| |
| /** |
| * Create a note diagnostic. |
| * @param key The key for the localized error message. |
| * @param args Fields of the error message. |
| */ |
| public JCDiagnostic note(String key, Object... args) { |
| return note(null, null, key, args); |
| } |
| |
| /** |
| * Create a note diagnostic. |
| * @param source The source of the compilation unit, if any, in which to report the note. |
| * @param pos The source position at which to report the note. |
| * @param key The key for the localized error message. |
| * @param args Fields of the error message. |
| */ |
| public JCDiagnostic note( |
| DiagnosticSource source, DiagnosticPosition pos, String key, Object... args) { |
| return new JCDiagnostic(messages, NOTE, false, source, pos, qualify(NOTE, key), args); |
| } |
| |
| /** |
| * Create a fragment diagnostic, for use as an argument in other diagnostics |
| * @param key The key for the localized error message. |
| * @param args Fields of the error message. |
| */ |
| public JCDiagnostic fragment(String key, Object... args) { |
| return new JCDiagnostic(messages, FRAGMENT, false, null, null, qualify(FRAGMENT, key), args); |
| } |
| |
| protected String qualify(DiagnosticType t, String key) { |
| return prefix + "." + t.key + "." + key; |
| } |
| } |
| |
| |
| |
| /** |
| * Create a fragment diagnostic, for use as an argument in other diagnostics |
| * @param key The key for the localized error message. |
| * @param args Fields of the error message. |
| */ |
| // should be deprecated |
| public static JCDiagnostic fragment(String key, Object... args) { |
| return new JCDiagnostic(Messages.getDefaultMessages(), |
| FRAGMENT, |
| false, |
| null, |
| null, |
| "compiler." + FRAGMENT.key + "." + key, |
| args); |
| } |
| |
| /** |
| * A simple abstraction of a source file, as needed for use in a diagnostic message. |
| */ |
| // Note: This class may be superceded by a more general abstraction |
| public interface DiagnosticSource { |
| JavaFileObject getFile(); |
| CharSequence getName(); |
| int getLineNumber(int pos); |
| int getColumnNumber(int pos); |
| Map<JCTree, Integer> getEndPosTable(); |
| }; |
| |
| /** |
| * A DiagnosticType defines the type of the diagnostic. |
| **/ |
| public enum DiagnosticType { |
| /** A fragment of an enclosing diagnostic. */ |
| FRAGMENT("misc"), |
| /** A note: similar to, but less serious than, a warning. */ |
| NOTE("note"), |
| /** A warning. */ |
| WARNING("warn"), |
| /** An error. */ |
| ERROR("err"); |
| |
| final String key; |
| |
| /** Create a DiagnosticType. |
| * @param key A string used to create the resource key for the diagnostic. |
| */ |
| DiagnosticType(String key) { |
| this.key = key; |
| } |
| }; |
| |
| /** |
| * A DiagnosticPosition provides information about the positions in a file |
| * that gave rise to a diagnostic. It always defines a "preferred" position |
| * that most accurately defines the location of the diagnostic, it may also |
| * provide a related tree node that spans that location. |
| */ |
| public static interface DiagnosticPosition { |
| /** Gets the tree node, if any, to which the diagnostic applies. */ |
| JCTree getTree(); |
| /** If there is a tree node, get the start position of the tree node. |
| * Otherwise, just returns the same as getPreferredPosition(). */ |
| int getStartPosition(); |
| /** Get the position within the file that most accurately defines the |
| * location for the diagnostic. */ |
| int getPreferredPosition(); |
| /** If there is a tree node, and if endPositions are available, get |
| * the end position of the tree node. Otherwise, just returns the |
| * same as getPreferredPosition(). */ |
| int getEndPosition(Map<JCTree, Integer> endPosTable); |
| } |
| |
| /** |
| * A DiagnosticPosition that simply identifies a position, but no related |
| * tree node, as the location for a diagnostic. Used for scanner and parser |
| * diagnostics. */ |
| public static class SimpleDiagnosticPosition implements DiagnosticPosition { |
| public SimpleDiagnosticPosition(int pos) { |
| this.pos = pos; |
| } |
| |
| public JCTree getTree() { |
| return null; |
| } |
| |
| public int getStartPosition() { |
| return pos; |
| } |
| |
| public int getPreferredPosition() { |
| return pos; |
| } |
| |
| public int getEndPosition(Map<JCTree, Integer> endPosTable) { |
| return pos; |
| } |
| |
| private final int pos; |
| } |
| |
| private final Messages messages; |
| private final DiagnosticType type; |
| private final DiagnosticSource source; |
| private final DiagnosticPosition position; |
| private final int line; |
| private final int column; |
| private final String key; |
| private final Object[] args; |
| private boolean mandatory; |
| |
| /** |
| * Create a diagnostic object. |
| * @param messages the resource for localized messages |
| * @param dt the type of diagnostic |
| * @param name the name of the source file, or null if none. |
| * @param pos the character offset within the source file, if given. |
| * @param key a resource key to identify the text of the diagnostic |
| * @param args arguments to be included in the text of the diagnostic |
| */ |
| protected JCDiagnostic(Messages messages, |
| DiagnosticType dt, |
| boolean mandatory, |
| DiagnosticSource source, |
| DiagnosticPosition pos, |
| String key, |
| Object ... args) { |
| if (source == null && pos != null && pos.getPreferredPosition() != Position.NOPOS) |
| throw new IllegalArgumentException(); |
| |
| this.messages = messages; |
| this.type = dt; |
| this.mandatory = mandatory; |
| this.source = source; |
| this.position = pos; |
| this.key = key; |
| this.args = args; |
| |
| int n = (pos == null ? Position.NOPOS : pos.getPreferredPosition()); |
| if (n == Position.NOPOS || source == null) |
| line = column = -1; |
| else { |
| line = source.getLineNumber(n); |
| column = source.getColumnNumber(n); |
| } |
| } |
| |
| /** |
| * Get the type of this diagnostic. |
| * @return the type of this diagnostic |
| */ |
| public DiagnosticType getType() { |
| return type; |
| } |
| |
| /** |
| * Check whether or not this diagnostic is required to be shown. |
| * @return true if this diagnostic is required to be shown. |
| */ |
| public boolean isMandatory() { |
| return mandatory; |
| } |
| |
| /** |
| * Get the name of the source file referred to by this diagnostic. |
| * @return the name of the source referred to with this diagnostic, or null if none |
| */ |
| public JavaFileObject getSource() { |
| if (source == null) |
| return null; |
| else |
| return source.getFile(); |
| } |
| |
| /** |
| * Get the name of the source file referred to by this diagnostic. |
| * @return the name of the source referred to with this diagnostic, or null if none |
| */ |
| public String getSourceName() { |
| JavaFileObject s = getSource(); |
| return s == null ? null : JavacFileManager.getJavacFileName(s); |
| } |
| |
| /** |
| * Get the source referred to by this diagnostic. |
| * @return the source referred to with this diagnostic, or null if none |
| */ |
| public DiagnosticSource getDiagnosticSource() { |
| return source; |
| } |
| |
| protected int getIntStartPosition() { |
| return (position == null ? Position.NOPOS : position.getStartPosition()); |
| } |
| |
| protected int getIntPosition() { |
| return (position == null ? Position.NOPOS : position.getPreferredPosition()); |
| } |
| |
| protected int getIntEndPosition() { |
| return (position == null ? Position.NOPOS : position.getEndPosition(source.getEndPosTable())); |
| } |
| |
| public long getStartPosition() { |
| return getIntStartPosition(); |
| } |
| |
| public long getPosition() { |
| return getIntPosition(); |
| } |
| |
| public long getEndPosition() { |
| return getIntEndPosition(); |
| } |
| |
| /** |
| * Get the line number within the source referred to by this diagnostic. |
| * @return the line number within the source referred to by this diagnostic |
| */ |
| public long getLineNumber() { |
| return line; |
| } |
| |
| /** |
| * Get the column number within the line of source referred to by this diagnostic. |
| * @return the column number within the line of source referred to by this diagnostic |
| */ |
| public long getColumnNumber() { |
| return column; |
| } |
| |
| /** |
| * Get the arguments to be included in the text of the diagnostic. |
| * @return the arguments to be included in the text of the diagnostic |
| */ |
| public Object[] getArgs() { |
| return args; |
| } |
| |
| /** |
| * Get the prefix string associated with this type of diagnostic. |
| * @return the prefix string associated with this type of diagnostic |
| */ |
| public String getPrefix() { |
| return getPrefix(type); |
| } |
| |
| /** |
| * Get the prefix string associated with a particular type of diagnostic. |
| * @return the prefix string associated with a particular type of diagnostic |
| */ |
| public String getPrefix(DiagnosticType dt) { |
| switch (dt) { |
| case FRAGMENT: return ""; |
| case NOTE: return getLocalizedString("compiler.note.note"); |
| case WARNING: return getLocalizedString("compiler.warn.warning"); |
| case ERROR: return getLocalizedString("compiler.err.error"); |
| default: |
| throw new AssertionError("Unknown diagnostic type: " + dt); |
| } |
| } |
| |
| /** |
| * Return the standard presentation of this diagnostic. |
| */ |
| public String toString() { |
| if (defaultFormatter == null) { |
| defaultFormatter = |
| new DiagnosticFormatter(); |
| } |
| return defaultFormatter.format(this); |
| } |
| |
| private static DiagnosticFormatter defaultFormatter; |
| |
| private static final String messageBundleName = |
| "com.sun.tools.javac.resources.compiler"; |
| |
| private String getLocalizedString(String key, Object... args) { |
| String[] strings = new String[args.length]; |
| for (int i = 0; i < strings.length; i++) { |
| Object arg = args[i]; |
| if (arg == null) |
| strings[i] = null; |
| else if (arg instanceof JCDiagnostic) |
| strings[i] = ((JCDiagnostic) arg).getMessage(null); |
| else |
| strings[i] = arg.toString(); |
| } |
| |
| return messages.getLocalizedString(key, (Object[]) strings); |
| } |
| |
| // Methods for javax.tools.Diagnostic |
| |
| public Diagnostic.Kind getKind() { |
| switch (type) { |
| case NOTE: |
| return Diagnostic.Kind.NOTE; |
| case WARNING: |
| return mandatory ? Diagnostic.Kind.MANDATORY_WARNING |
| : Diagnostic.Kind.WARNING; |
| case ERROR: |
| return Diagnostic.Kind.ERROR; |
| default: |
| return Diagnostic.Kind.OTHER; |
| } |
| } |
| |
| public String getCode() { |
| return key; |
| } |
| |
| public String getMessage(Locale locale) { |
| // RFE 6406133: JCDiagnostic.getMessage ignores locale argument |
| return getLocalizedString(key, args); |
| } |
| |
| } |