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/*
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* Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package com.sun.tools.javac.processing;
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import com.sun.tools.javac.model.JavacElements;
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import com.sun.tools.javac.util.*;
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import com.sun.tools.javac.tree.JCTree;
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import com.sun.tools.javac.tree.JCTree.*;
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import javax.lang.model.element.*;
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import javax.tools.JavaFileObject;
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import javax.tools.Diagnostic;
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import javax.annotation.processing.*;
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/**
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* An implementation of the Messager built on top of log.
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*
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* <p><b>This is NOT part of any API supported by Sun Microsystems.
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* If you write code that depends on this, you do so at your own risk.
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* This code and its internal interfaces are subject to change or
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* deletion without notice.</b>
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*/
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public class JavacMessager implements Messager {
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Log log;
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JavacProcessingEnvironment processingEnv;
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int errorCount = 0;
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JavacMessager(Context context, JavacProcessingEnvironment processingEnv) {
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log = Log.instance(context);
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this.processingEnv = processingEnv;
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}
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// processingEnv.getElementUtils()
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public void printMessage(Diagnostic.Kind kind, CharSequence msg) {
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printMessage(kind, msg, null, null, null);
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}
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public void printMessage(Diagnostic.Kind kind, CharSequence msg,
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Element e) {
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printMessage(kind, msg, e, null, null);
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}
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/**
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* Prints a message of the specified kind at the location of the
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* annotation mirror of the annotated element.
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*
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* @param kind the kind of message
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* @param msg the message, or an empty string if none
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* @param e the annotated element
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* @param a the annotation to use as a position hint
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*/
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public void printMessage(Diagnostic.Kind kind, CharSequence msg,
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Element e, AnnotationMirror a) {
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printMessage(kind, msg, e, a, null);
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}
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/**
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* Prints a message of the specified kind at the location of the
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* annotation value inside the annotation mirror of the annotated
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* element.
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*
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* @param kind the kind of message
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* @param msg the message, or an empty string if none
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* @param e the annotated element
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* @param a the annotation containing the annotaiton value
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* @param v the annotation value to use as a position hint
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*/
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public void printMessage(Diagnostic.Kind kind, CharSequence msg,
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Element e, AnnotationMirror a, AnnotationValue v) {
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JavaFileObject oldSource = null;
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JavaFileObject newSource = null;
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JCDiagnostic.DiagnosticPosition pos = null;
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JavacElements elemUtils = processingEnv.getElementUtils();
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Pair<JCTree, JCCompilationUnit> treeTop = elemUtils.getTreeAndTopLevel(e, a, v);
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if (treeTop != null) {
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newSource = treeTop.snd.sourcefile;
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if (newSource != null) {
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oldSource = log.useSource(newSource);
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pos = treeTop.fst.pos();
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}
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}
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try {
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switch (kind) {
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case ERROR:
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errorCount++;
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boolean prev = log.multipleErrors;
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log.multipleErrors = true;
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try {
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log.error(pos, "proc.messager", msg.toString());
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} finally {
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log.multipleErrors = prev;
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}
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break;
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case WARNING:
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log.warning(pos, "proc.messager", msg.toString());
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break;
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case MANDATORY_WARNING:
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log.mandatoryWarning(pos, "proc.messager", msg.toString());
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break;
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default:
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log.note(pos, "proc.messager", msg.toString());
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break;
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}
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} finally {
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if (oldSource != null)
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log.useSource(oldSource);
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}
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}
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/**
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* Prints an error message.
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* Equivalent to {@code printError(null, msg)}.
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* @param msg the message, or an empty string if none
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*/
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public void printError(String msg) {
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printMessage(Diagnostic.Kind.ERROR, msg);
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}
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/**
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* Prints a warning message.
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* Equivalent to {@code printWarning(null, msg)}.
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* @param msg the message, or an empty string if none
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*/
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public void printWarning(String msg) {
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printMessage(Diagnostic.Kind.WARNING, msg);
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}
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/**
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* Prints a notice.
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* @param msg the message, or an empty string if none
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*/
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public void printNotice(String msg) {
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printMessage(Diagnostic.Kind.NOTE, msg);
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}
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public boolean errorRaised() {
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return errorCount > 0;
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}
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public int errorCount() {
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return errorCount;
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}
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public void newRound(Context context) {
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log = Log.instance(context);
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errorCount = 0;
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}
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public String toString() {
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return "javac Messager";
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}
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}
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