Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: make/tools/crules/MutableFieldsAnalyzer.java
make/tools/crules/MutableFieldsAnalyzer.java
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| 1 /* | |
| 2 * Copyright (c) 2013, 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. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 package crules; | |
| 25 | |
| 26 import java.util.Arrays; | |
| 27 import java.util.HashMap; | |
| 28 import java.util.List; | |
| 29 import java.util.Map; | |
| 30 | |
| 31 import com.sun.tools.javac.code.Kinds; | |
| 32 import com.sun.tools.javac.tree.TreeScanner; | |
| 33 | |
| 34 import static com.sun.source.util.TaskEvent.Kind; | |
| 35 import static com.sun.tools.javac.code.Flags.*; | |
| 36 import static com.sun.tools.javac.tree.JCTree.JCVariableDecl; | |
| 37 | |
| 38 public class MutableFieldsAnalyzer extends AbstractCodingRulesAnalyzer { | |
| 39 | |
| 40 public MutableFieldsAnalyzer() { | |
| 41 treeVisitor = new MutableFieldsVisitor(); | |
| 42 eventKind = Kind.ANALYZE; | |
| 43 } | |
| 44 | |
| 45 public String getName() { | |
| 46 return "mutable_fields_analyzer"; | |
| 47 } | |
| 48 | |
| 49 private boolean ignoreField(String className, String field) { | |
| 50 List<String> currentFieldsToIgnore = | |
| 51 classFieldsToIgnoreMap.get(className); | |
| 52 if (currentFieldsToIgnore != null) { | |
| 53 for (String fieldToIgnore : currentFieldsToIgnore) { | |
| 54 if (field.equals(fieldToIgnore)) { | |
| 55 return true; | |
| 56 } | |
| 57 } | |
| 58 } | |
| 59 return false; | |
| 60 } | |
| 61 | |
| 62 class MutableFieldsVisitor extends TreeScanner { | |
| 63 | |
| 64 @Override | |
| 65 public void visitVarDef(JCVariableDecl tree) { | |
| 66 boolean isJavacPack = tree.sym.outermostClass().fullname.toString() | |
| 67 .contains(packageToCheck); | |
| 68 if (isJavacPack && | |
| 69 (tree.sym.flags() & SYNTHETIC) == 0 && | |
| 70 tree.sym.owner.kind == Kinds.TYP) { | |
| 71 if (!ignoreField(tree.sym.owner.flatName().toString(), | |
| 72 tree.getName().toString())) { | |
| 73 boolean enumClass = (tree.sym.owner.flags() & ENUM) != 0; | |
| 74 boolean nonFinalStaticEnumField = | |
| 75 (tree.sym.flags() & (ENUM | FINAL)) == 0; | |
| 76 boolean nonFinalStaticField = | |
| 77 (tree.sym.flags() & STATIC) != 0 && | |
| 78 (tree.sym.flags() & FINAL) == 0; | |
| 79 if (enumClass ? nonFinalStaticEnumField : nonFinalStaticField) { | |
| 80 messages.error(tree, "crules.err.var.must.be.final", tree); | |
| 81 } | |
| 82 } | |
| 83 } | |
| 84 super.visitVarDef(tree); | |
| 85 } | |
| 86 | |
| 87 } | |
| 88 | |
| 89 private static final String packageToCheck = "com.sun.tools.javac"; | |
| 90 | |
| 91 private static final Map<String, List<String>> classFieldsToIgnoreMap = | |
| 92 new HashMap<String, List<String>>(); | |
| 93 | |
| 94 static { | |
| 95 classFieldsToIgnoreMap. | |
| 96 put("com.sun.tools.javac.util.JCDiagnostic", | |
| 97 Arrays.asList("fragmentFormatter")); | |
| 98 classFieldsToIgnoreMap. | |
| 99 put("com.sun.tools.javac.util.JavacMessages", | |
| 100 Arrays.asList("defaultBundle", "defaultMessages")); | |
| 101 classFieldsToIgnoreMap. | |
| 102 put("com.sun.tools.javac.file.ZipFileIndexCache", | |
| 103 Arrays.asList("sharedInstance")); | |
| 104 classFieldsToIgnoreMap. | |
| 105 put("com.sun.tools.javac.main.JavaCompiler", | |
| 106 Arrays.asList("versionRB")); | |
| 107 classFieldsToIgnoreMap. | |
| 108 put("com.sun.tools.javac.code.Type", | |
| 109 Arrays.asList("moreInfo")); | |
| 110 classFieldsToIgnoreMap. | |
| 111 put("com.sun.tools.javac.util.SharedNameTable", | |
| 112 Arrays.asList("freelist")); | |
| 113 classFieldsToIgnoreMap. | |
| 114 put("com.sun.tools.javac.util.Log", | |
| 115 Arrays.asList("useRawMessages")); | |
| 116 } | |
| 117 | |
| 118 } |
