1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/processing/model/TestSymtabItems.java Tue Mar 01 12:00:06 2011 -0800
1.3 @@ -0,0 +1,221 @@
1.4 +/*
1.5 + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 7021183
1.30 + * @summary 269: assertion failure getting enclosing element of an undefined name
1.31 + */
1.32 +
1.33 +import java.lang.reflect.Field;
1.34 +import javax.lang.model.element.Element;
1.35 +import javax.lang.model.element.ExecutableElement;
1.36 +import javax.lang.model.element.PackageElement;
1.37 +import javax.lang.model.element.TypeElement;
1.38 +import javax.lang.model.element.TypeParameterElement;
1.39 +import javax.lang.model.element.UnknownElementException;
1.40 +import javax.lang.model.element.VariableElement;
1.41 +import javax.lang.model.type.TypeMirror;
1.42 +import javax.lang.model.type.UnknownTypeException;
1.43 +import javax.lang.model.util.ElementScanner7;
1.44 +import javax.lang.model.util.SimpleTypeVisitor7;
1.45 +import javax.lang.model.util.Types;
1.46 +
1.47 +import com.sun.tools.javac.code.Symbol.ClassSymbol;
1.48 +import com.sun.tools.javac.code.Symtab;
1.49 +import com.sun.tools.javac.file.JavacFileManager;
1.50 +import com.sun.tools.javac.model.JavacTypes;
1.51 +import com.sun.tools.javac.util.Context;
1.52 +
1.53 +/**
1.54 + * Scan javac Symtab looking for TypeMirrors and Elements, and ensure that
1.55 + * no exceptions are thrown when used with javax.lang.model visitors.
1.56 + *
1.57 + */
1.58 +public class TestSymtabItems {
1.59 + public static void main(String... args) throws Exception {
1.60 + new TestSymtabItems().run();
1.61 + }
1.62 +
1.63 + void run() throws Exception {
1.64 + Context c = new Context();
1.65 + JavacFileManager.preRegister(c);
1.66 + Symtab syms = Symtab.instance(c);
1.67 + JavacTypes types = JavacTypes.instance(c);
1.68 +
1.69 +// print("noSymbol", syms.noSymbol);
1.70 +// print("errSymbol", syms.errSymbol);
1.71 +// print("unknownSymbol", syms.unknownSymbol);
1.72 +// print("botType", syms.botType);
1.73 +// print("errType", syms.errType);
1.74 +// print("unknownType", syms.unknownType);
1.75 +
1.76 + for (Field f: Symtab.class.getDeclaredFields()) {
1.77 +// System.err.println(f.getType() + " " + f.getName());
1.78 +
1.79 + // Temporarily ignore methodHandle and transientMethodHandle
1.80 + // during API evolution
1.81 + if (f.getName().toLowerCase().contains("methodhandle"))
1.82 + continue;
1.83 +
1.84 + Class<?> ft = f.getType();
1.85 + if (TypeMirror.class.isAssignableFrom(ft))
1.86 + print(f.getName(), (TypeMirror) f.get(syms), types);
1.87 + else if(Element.class.isAssignableFrom(ft))
1.88 + print(f.getName(), (Element) f.get(syms));
1.89 + }
1.90 +
1.91 + if (errors > 0)
1.92 + throw new Exception(errors + " errors occurred");
1.93 + }
1.94 +
1.95 + void print(String label, Element e) {
1.96 + ElemPrinter ep = new ElemPrinter();
1.97 + System.err.println("Test " + label);
1.98 + ep.visit(e);
1.99 + System.err.println();
1.100 + }
1.101 +
1.102 + void print(String label, TypeMirror t, Types types) {
1.103 + TypePrinter tp = new TypePrinter();
1.104 + System.err.println("Test " + label);
1.105 + tp.visit(t, types);
1.106 + System.err.println();
1.107 + }
1.108 +
1.109 + void error(String msg) {
1.110 + System.err.println("Error: " + msg);
1.111 + errors++;
1.112 + }
1.113 +
1.114 + int errors;
1.115 +
1.116 + class ElemPrinter extends ElementScanner7<Void, Void> {
1.117 + @Override
1.118 + public Void visitPackage(PackageElement e, Void p) {
1.119 + show("package", e);
1.120 + indent(+1);
1.121 + super.visitPackage(e, p);
1.122 + indent(-1);
1.123 + return null;
1.124 + }
1.125 +
1.126 + @Override
1.127 + public Void visitType(TypeElement e, Void p) {
1.128 + show("type", e);
1.129 + indent(+1);
1.130 + super.visitType(e, p);
1.131 + indent(-1);
1.132 + return null;
1.133 + }
1.134 +
1.135 + @Override
1.136 + public Void visitVariable(VariableElement e, Void p) {
1.137 + show("variable", e);
1.138 + indent(+1);
1.139 + super.visitVariable(e, p);
1.140 + indent(-1);
1.141 + return null;
1.142 + }
1.143 +
1.144 + @Override
1.145 + public Void visitExecutable(ExecutableElement e, Void p) {
1.146 + show("executable", e);
1.147 + indent(+1);
1.148 + super.visitExecutable(e, p);
1.149 + indent(-1);
1.150 + return null;
1.151 + }
1.152 +
1.153 + @Override
1.154 + public Void visitTypeParameter(TypeParameterElement e, Void p) {
1.155 + show("type parameter", e);
1.156 + indent(+1);
1.157 + super.visitTypeParameter(e, p);
1.158 + indent(-1);
1.159 + return null;
1.160 + }
1.161 +
1.162 + @Override
1.163 + public Void visitUnknown(Element e, Void p) {
1.164 + show("unknown", e);
1.165 + indent(+1);
1.166 + try {
1.167 + super.visitUnknown(e, p);
1.168 + } catch (UnknownElementException ex) {
1.169 + System.err.println("caught " + ex);
1.170 + }
1.171 + indent(-1);
1.172 + return null;
1.173 + }
1.174 +
1.175 + void indent(int i) {
1.176 + indent += i;
1.177 + }
1.178 +
1.179 + String sp(int w) {
1.180 + StringBuilder sb = new StringBuilder();
1.181 + for (int i = 0; i < w; i++)
1.182 + sb.append(" ");
1.183 + return sb.toString();
1.184 + }
1.185 +
1.186 + void show(String label, Element e) {
1.187 + System.err.println(sp(indent) + label
1.188 + + ": mods:" + e.getModifiers()
1.189 + + " " + e.getSimpleName()
1.190 + + ", kind: " + e.getKind()
1.191 + + ", type: " + e.asType()
1.192 + + ", encl: " + e.getEnclosingElement());
1.193 +
1.194 + // The following checks help establish why NPE might occur when trying to scan children
1.195 + if (e instanceof ClassSymbol) {
1.196 + ClassSymbol csym = (ClassSymbol) e;
1.197 + if (csym.members_field == null)
1.198 + error("members_field is null");
1.199 + if (csym.type == null)
1.200 + System.err.println("type is null");
1.201 + }
1.202 + }
1.203 +
1.204 + int indent;
1.205 + };
1.206 +
1.207 + class TypePrinter extends SimpleTypeVisitor7<Void, Types> {
1.208 + @Override
1.209 + public Void defaultAction(TypeMirror m, Types types) {
1.210 + System.err.println(m.getKind() + " " + m + " " + types.asElement(m));
1.211 + return null;
1.212 + }
1.213 +
1.214 + @Override
1.215 + public Void visitUnknown(TypeMirror t, Types types) {
1.216 + try {
1.217 + return super.visitUnknown(t, types);
1.218 + } catch (UnknownTypeException ex) {
1.219 + System.err.println("caught " + ex);
1.220 + return null;
1.221 + }
1.222 + }
1.223 + };
1.224 +}
