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 (c) 2005, 2012, Oracle and/or its affiliates. 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. Oracle designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 * or visit www.oracle.com if you need additional information or have any | |
| 23 * 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.tree.JCTree; | |
| 31 import com.sun.tools.javac.tree.JCTree.*; | |
| 32 import javax.lang.model.element.*; | |
| 33 import javax.tools.JavaFileObject; | |
| 34 import javax.tools.Diagnostic; | |
| 35 import javax.annotation.processing.*; | |
| 36 | |
| 37 /** | |
| 38 * An implementation of the Messager built on top of log. | |
| 39 * | |
| 40 * <p><b>This is NOT part of any supported API. | |
| 41 * If you write code that depends on this, you do so at your own risk. | |
| 42 * This code and its internal interfaces are subject to change or | |
| 43 * deletion without notice.</b> | |
| 44 */ | |
| 45 public class JavacMessager implements Messager { | |
| 46 Log log; | |
| 47 JavacProcessingEnvironment processingEnv; | |
| 48 int errorCount = 0; | |
| 49 int warningCount = 0; | |
| 50 | |
| 51 JavacMessager(Context context, JavacProcessingEnvironment processingEnv) { | |
| 52 log = Log.instance(context); | |
| 53 this.processingEnv = processingEnv; | |
| 54 } | |
| 55 | |
| 56 // processingEnv.getElementUtils() | |
| 57 | |
| 58 public void printMessage(Diagnostic.Kind kind, CharSequence msg) { | |
| 59 printMessage(kind, msg, null, null, null); | |
| 60 } | |
| 61 | |
| 62 public void printMessage(Diagnostic.Kind kind, CharSequence msg, | |
| 63 Element e) { | |
| 64 printMessage(kind, msg, e, null, null); | |
| 65 } | |
| 66 | |
| 67 /** | |
| 68 * Prints a message of the specified kind at the location of the | |
| 69 * annotation mirror of the annotated element. | |
| 70 * | |
| 71 * @param kind the kind of message | |
| 72 * @param msg the message, or an empty string if none | |
| 73 * @param e the annotated element | |
| 74 * @param a the annotation to use as a position hint | |
| 75 */ | |
| 76 public void printMessage(Diagnostic.Kind kind, CharSequence msg, | |
| 77 Element e, AnnotationMirror a) { | |
| 78 printMessage(kind, msg, e, a, null); | |
| 79 } | |
| 80 | |
| 81 /** | |
| 82 * Prints a message of the specified kind at the location of the | |
| 83 * annotation value inside the annotation mirror of the annotated | |
| 84 * element. | |
| 85 * | |
| 86 * @param kind the kind of message | |
| 87 * @param msg the message, or an empty string if none | |
| 88 * @param e the annotated element | |
| 89 * @param a the annotation containing the annotaiton value | |
| 90 * @param v the annotation value to use as a position hint | |
| 91 */ | |
| 92 public void printMessage(Diagnostic.Kind kind, CharSequence msg, | |
| 93 Element e, AnnotationMirror a, AnnotationValue v) { | |
| 94 JavaFileObject oldSource = null; | |
| 95 JavaFileObject newSource = null; | |
| 96 JCDiagnostic.DiagnosticPosition pos = null; | |
| 97 JavacElements elemUtils = processingEnv.getElementUtils(); | |
| 98 Pair<JCTree, JCCompilationUnit> treeTop = elemUtils.getTreeAndTopLevel(e, a, v); | |
| 99 if (treeTop != null) { | |
| 100 newSource = treeTop.snd.sourcefile; | |
| 101 if (newSource != null) { | |
| 102 // save the old version and reinstate it later | |
| 103 oldSource = log.useSource(newSource); | |
| 104 pos = treeTop.fst.pos(); | |
| 105 } | |
| 106 } | |
| 107 try { | |
| 108 switch (kind) { | |
| 109 case ERROR: | |
| 110 errorCount++; | |
| 111 boolean prev = log.multipleErrors; | |
| 112 log.multipleErrors = true; | |
| 113 try { | |
| 114 log.error(pos, "proc.messager", msg.toString()); | |
| 115 } finally { | |
| 116 log.multipleErrors = prev; | |
| 117 } | |
| 118 break; | |
| 119 | |
| 120 case WARNING: | |
| 121 warningCount++; | |
| 122 log.warning(pos, "proc.messager", msg.toString()); | |
| 123 break; | |
| 124 | |
| 125 case MANDATORY_WARNING: | |
| 126 warningCount++; | |
| 127 log.mandatoryWarning(pos, "proc.messager", msg.toString()); | |
| 128 break; | |
| 129 | |
| 130 default: | |
| 131 log.note(pos, "proc.messager", msg.toString()); | |
| 132 break; | |
| 133 } | |
| 134 } finally { | |
| 135 // reinstate the saved version, only if it was saved earlier | |
| 136 if (newSource != null) | |
| 137 log.useSource(oldSource); | |
| 138 } | |
| 139 } | |
| 140 | |
| 141 /** | |
| 142 * Prints an error message. | |
| 143 * Equivalent to {@code printError(null, msg)}. | |
| 144 * @param msg the message, or an empty string if none | |
| 145 */ | |
| 146 public void printError(String msg) { | |
| 147 printMessage(Diagnostic.Kind.ERROR, msg); | |
| 148 } | |
| 149 | |
| 150 /** | |
| 151 * Prints a warning message. | |
| 152 * Equivalent to {@code printWarning(null, msg)}. | |
| 153 * @param msg the message, or an empty string if none | |
| 154 */ | |
| 155 public void printWarning(String msg) { | |
| 156 printMessage(Diagnostic.Kind.WARNING, msg); | |
| 157 } | |
| 158 | |
| 159 /** | |
| 160 * Prints a notice. | |
| 161 * @param msg the message, or an empty string if none | |
| 162 */ | |
| 163 public void printNotice(String msg) { | |
| 164 printMessage(Diagnostic.Kind.NOTE, msg); | |
| 165 } | |
| 166 | |
| 167 public boolean errorRaised() { | |
| 168 return errorCount > 0; | |
| 169 } | |
| 170 | |
| 171 public int errorCount() { | |
| 172 return errorCount; | |
| 173 } | |
| 174 | |
| 175 public int warningCount() { | |
| 176 return warningCount; | |
| 177 } | |
| 178 | |
| 179 public void newRound(Context context) { | |
| 180 log = Log.instance(context); | |
| 181 errorCount = 0; | |
| 182 } | |
| 183 | |
| 184 public String toString() { | |
| 185 return "javac Messager"; | |
| 186 } | |
| 187 } |
