Mercurial > jdk8-mips64-public > langtools / file comparison

comparison: src/share/classes/com/sun/tools/javac/processing/JavacMessager.java

src/share/classes/com/sun/tools/javac/processing/JavacMessager.java

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1 /*
2 * Copyright 2005-2006 Sun Microsystems, Inc. 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. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package com.sun.tools.javac.processing;
27
28 import com.sun.tools.javac.model.JavacElements;
29 import com.sun.tools.javac.util.*;
30 import com.sun.tools.javac.comp.*;
31 import com.sun.tools.javac.tree.JCTree;
32 import com.sun.tools.javac.tree.JCTree.*;
33 import com.sun.tools.javac.util.Position;
34 import javax.lang.model.element.*;
35 import javax.tools.JavaFileObject;
36 import javax.tools.Diagnostic;
37 import javax.annotation.processing.*;
38 import java.util.*;
39
40 /**
41 * An implementation of the Messager built on top of log.
42 *
43 * <p><b>This is NOT part of any API supported by Sun Microsystems.
44 * If you write code that depends on this, you do so at your own risk.
45 * This code and its internal interfaces are subject to change or
46 * deletion without notice.</b>
47 */
48 public class JavacMessager implements Messager {
49 Log log;
50 JavacProcessingEnvironment processingEnv;
51 int errorCount = 0;
52
53 JavacMessager(Context context, JavacProcessingEnvironment processingEnv) {
54 log = Log.instance(context);
55 this.processingEnv = processingEnv;
56 }
57
58 // processingEnv.getElementUtils()
59
60 public void printMessage(Diagnostic.Kind kind, CharSequence msg) {
61 printMessage(kind, msg, null, null, null);
62 }
63
64 public void printMessage(Diagnostic.Kind kind, CharSequence msg,
65 Element e) {
66 printMessage(kind, msg, e, null, null);
67 }
68
69 /**
70 * Prints a message of the specified kind at the location of the
71 * annotation mirror of the annotated element.
72 *
73 * @param kind the kind of message
74 * @param msg the message, or an empty string if none
75 * @param e the annotated element
76 * @param a the annotation to use as a position hint
77 */
78 public void printMessage(Diagnostic.Kind kind, CharSequence msg,
79 Element e, AnnotationMirror a) {
80 printMessage(kind, msg, e, a, null);
81 }
82
83 /**
84 * Prints a message of the specified kind at the location of the
85 * annotation value inside the annotation mirror of the annotated
86 * element.
87 *
88 * @param kind the kind of message
89 * @param msg the message, or an empty string if none
90 * @param e the annotated element
91 * @param a the annotation containing the annotaiton value
92 * @param v the annotation value to use as a position hint
93 */
94 public void printMessage(Diagnostic.Kind kind, CharSequence msg,
95 Element e, AnnotationMirror a, AnnotationValue v) {
96 JavaFileObject oldSource = null;
97 JavaFileObject newSource = null;
98 JCDiagnostic.DiagnosticPosition pos = null;
99 JavacElements elemUtils = processingEnv.getElementUtils();
100 Pair<JCTree, JCCompilationUnit> treeTop = elemUtils.getTreeAndTopLevel(e, a, v);
101 if (treeTop != null) {
102 newSource = treeTop.snd.sourcefile;
103 if (newSource != null) {
104 oldSource = log.useSource(newSource);
105 pos = treeTop.fst.pos();
106 }
107 }
108 try {
109 switch (kind) {
110 case ERROR:
111 errorCount++;
112 boolean prev = log.multipleErrors;
113 log.multipleErrors = true;
114 try {
115 log.error(pos, "proc.messager", msg.toString());
116 } finally {
117 log.multipleErrors = prev;
118 }
119 break;
120
121 case WARNING:
122 log.warning(pos, "proc.messager", msg.toString());
123 break;
124
125 case MANDATORY_WARNING:
126 log.mandatoryWarning(pos, "proc.messager", msg.toString());
127 break;
128
129 default:
130 log.note(pos, "proc.messager", msg.toString());
131 break;
132 }
133 } finally {
134 if (oldSource != null)
135 log.useSource(oldSource);
136 }
137 }
138
139 /**
140 * Prints an error message.
141 * Equivalent to {@code printError(null, msg)}.
142 * @param msg the message, or an empty string if none
143 */
144 public void printError(String msg) {
145 printMessage(Diagnostic.Kind.ERROR, msg);
146 }
147
148 /**
149 * Prints a warning message.
150 * Equivalent to {@code printWarning(null, msg)}.
151 * @param msg the message, or an empty string if none
152 */
153 public void printWarning(String msg) {
154 printMessage(Diagnostic.Kind.WARNING, msg);
155 }
156
157 /**
158 * Prints a notice.
159 * @param msg the message, or an empty string if none
160 */
161 public void printNotice(String msg) {
162 printMessage(Diagnostic.Kind.NOTE, msg);
163 }
164
165 public boolean errorRaised() {
166 return errorCount > 0;
167 }
168
169 public int errorCount() {
170 return errorCount;
171 }
172
173 public void newRound(Context context) {
174 log = Log.instance(context);
175 errorCount = 0;
176 }
177
178 public String toString() {
179 return "javac Messager";
180 }
181 }

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