jdk-24/langtools/make/tools/crules/LegacyLogMethodAnalyzer.java
Jan Lahoda 75831b7be2 8170326: Inconsistencies between code, compiler.properties and comments
Converting uses of Log and JCDiagnostic.Factory methods to use CompilerProperties instead of plain Strings, fixing inconsistencies, adding crules analyzer to ensure CompilerProperties are used whenever possible.

Reviewed-by: mcimadamore
2017-06-15 13:44:42 +02:00

96 lines
3.8 KiB
Java

/*
* Copyright (c) 2017, Oracle and/or its affiliates. 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.
*
* 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package crules;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import com.sun.source.util.JavacTask;
import com.sun.source.util.TaskEvent.Kind;
import com.sun.tools.javac.code.Kinds;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.code.Symbol.MethodSymbol;
import com.sun.tools.javac.code.Type;
import com.sun.tools.javac.tree.JCTree.JCClassDecl;
import com.sun.tools.javac.tree.JCTree.JCExpression;
import com.sun.tools.javac.tree.JCTree.JCMethodInvocation;
import com.sun.tools.javac.tree.JCTree.Tag;
import com.sun.tools.javac.tree.TreeInfo;
import com.sun.tools.javac.tree.TreeScanner;
import com.sun.tools.javac.util.AbstractLog;
import com.sun.tools.javac.util.JCDiagnostic;
/**This analyzer guards against legacy Log.error/warning/note methods that don't use the typed keys.*/
public class LegacyLogMethodAnalyzer extends AbstractCodingRulesAnalyzer {
public LegacyLogMethodAnalyzer(JavacTask task) {
super(task);
treeVisitor = new LegacyLogMethodVisitor();
eventKind = Kind.ANALYZE;
}
private static final Set<String> LEGACY_METHOD_NAMES = new HashSet<>(
Arrays.asList("error", "mandatoryWarning", "warning", "mandatoryNote", "note", "fragment"));
class LegacyLogMethodVisitor extends TreeScanner {
@Override
public void visitClassDef(JCClassDecl tree) {
if (!tree.sym.packge().fullname.toString().startsWith("com.sun.tools.javac."))
return ;
super.visitClassDef(tree);
}
@Override
public void visitApply(JCMethodInvocation tree) {
checkLegacyLogMethod(tree);
super.visitApply(tree);
}
void checkLegacyLogMethod(JCMethodInvocation tree) {
Symbol method = TreeInfo.symbolFor(tree);
if (method == null ||
method.kind != Kinds.Kind.MTH ||
!typeToCheck(method.owner.type) ||
!LEGACY_METHOD_NAMES.contains(method.name.toString()) ||
!((MethodSymbol) method).isVarArgs() ||
method.type.getParameterTypes().size() < 2) {
return ;
}
JCExpression key = tree.args.get(method.type.getParameterTypes().size() - 2);
if (key.hasTag(Tag.LITERAL)) {
messages.error(tree, "crules.use.of.legacy.log.method", tree);
}
}
boolean typeToCheck(Type type) {
Symbol abstractLog = elements.getTypeElement(AbstractLog.class.getName());
Symbol diagnosticFactory = elements.getTypeElement(JCDiagnostic.Factory.class.getName().replace('$', '.'));
return types.isSubtype(type, abstractLog.type) ||
types.isSubtype(type, diagnosticFactory.type);
}
}
}