Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/codewriter/FixWarningsVisitor.java @ 7504:d295ab2902fb
Removed debug log output.
author | Christian Humer <christian.humer@gmail.com> |
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date | Fri, 18 Jan 2013 13:39:04 +0100 |
parents | a748e4d44694 |
children | 5e3d1a68664e |
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/* * Copyright (c) 2012, 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 com.oracle.truffle.codegen.processor.codewriter; import static com.oracle.truffle.codegen.processor.Utils.*; import static javax.lang.model.element.Modifier.*; import java.io.*; import java.util.*; import javax.lang.model.element.*; import javax.lang.model.type.*; import com.oracle.truffle.codegen.processor.*; import com.oracle.truffle.codegen.processor.ast.*; public class FixWarningsVisitor extends CodeElementScanner<Void, Void>{ private final Set<String> symbolsUsed = new HashSet<>(); private final ProcessorContext context; private final DeclaredType unusedAnnotation; private final DeclaredType overrideType; public FixWarningsVisitor(ProcessorContext context, DeclaredType unusedAnnotation, DeclaredType overrideType) { this.context = context; this.unusedAnnotation = unusedAnnotation; this.overrideType = overrideType; } @Override public Void visitType(CodeTypeElement e, Void p) { List<TypeElement> superTypes = Utils.getSuperTypes(e); for (TypeElement type : superTypes) { String qualifiedName = Utils.getQualifiedName(type); if (qualifiedName.equals(Serializable.class.getCanonicalName())) { if (!e.containsField("serialVersionUID")) { e.add(new CodeVariableElement(modifiers(PRIVATE, STATIC, FINAL), context.getType(long.class), "serialVersionUID", "1L")); } break; } } return super.visitType(e, p); } @Override public Void visitExecutable(CodeExecutableElement e, Void p) { if (e.getParameters().isEmpty()) { return null; } else if (e.getModifiers().contains(Modifier.ABSTRACT)) { return null; } else if (containsOverride(e)) { return null; } symbolsUsed.clear(); super.visitExecutable(e, p); if (e.getBodyTree() == null && e.getBody() != null) { computeSymbols(e.getBody()); } for (VariableElement parameter : e.getParameters()) { if (!symbolsUsed.contains(parameter.getSimpleName().toString())) { e.getAnnotationMirrors().add(createUnusedAnnotationMirror()); break; } } return null; } private boolean containsOverride(CodeExecutableElement e) { for (AnnotationMirror mirror : e.getAnnotationMirrors()) { if (Utils.typeEquals(overrideType, mirror.getAnnotationType())) { return true; } } return false; } private CodeAnnotationMirror createUnusedAnnotationMirror() { CodeAnnotationMirror mirror = new CodeAnnotationMirror(unusedAnnotation); mirror.setElementValue(mirror.findExecutableElement("value"), new CodeAnnotationValue("unused")); return mirror; } @Override public void visitTree(CodeTree e, Void p) { if (e.getString() != null) { computeSymbols(e.getString()); } super.visitTree(e, p); } private void computeSymbols(String s) { // TODO there should not be any need for a StringTokenizer if we have a real AST for // method bodies. Also the current solution is not perfect. What if one token // is spread across multiple CodeTree instances? But for now that works. StringTokenizer tokenizer = new StringTokenizer(s, ".= :,()[];{}\"\"'' ", false); while (tokenizer.hasMoreElements()) { String token = tokenizer.nextToken().trim(); if (token.length() > 0) { symbolsUsed.add(token); } } } }