jdk8-mips64-public/langtools: test/tools/javac/processing/model/TestSymtabItems.java@938dda0bec17 (annotated)

test/tools/javac/processing/model/TestSymtabItems.java@938dda0bec17 (annotated)

test/tools/javac/processing/model/TestSymtabItems.java

Tue, 01 Mar 2011 12:00:06 -0800

author: jjg
date: Tue, 01 Mar 2011 12:00:06 -0800
changeset 900: 938dda0bec17
child 983: fb84cfca28a1
permissions: -rw-r--r--

7021183: 269: assertion failure getting enclosing element of an undefined name
Reviewed-by: mcimadamore

 /*
  * Copyright (c) 2011, 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.
  */
 /*
  * @test
  * @bug 7021183
  * @summary 269: assertion failure getting enclosing element of an undefined name
  */
 import java.lang.reflect.Field;
 import javax.lang.model.element.Element;
 import javax.lang.model.element.ExecutableElement;
 import javax.lang.model.element.PackageElement;
 import javax.lang.model.element.TypeElement;
 import javax.lang.model.element.TypeParameterElement;
 import javax.lang.model.element.UnknownElementException;
 import javax.lang.model.element.VariableElement;
 import javax.lang.model.type.TypeMirror;
 import javax.lang.model.type.UnknownTypeException;
 import javax.lang.model.util.ElementScanner7;
 import javax.lang.model.util.SimpleTypeVisitor7;
 import javax.lang.model.util.Types;
 import com.sun.tools.javac.code.Symbol.ClassSymbol;
 import com.sun.tools.javac.code.Symtab;
 import com.sun.tools.javac.file.JavacFileManager;
 import com.sun.tools.javac.model.JavacTypes;
 import com.sun.tools.javac.util.Context;
 /**
  * Scan javac Symtab looking for TypeMirrors and Elements, and ensure that
  * no exceptions are thrown when used with javax.lang.model visitors.
  *
  */
 public class TestSymtabItems {
     public static void main(String... args) throws Exception {
         new TestSymtabItems().run();
     }
     void run() throws Exception {
         Context c = new Context();
         JavacFileManager.preRegister(c);
         Symtab syms = Symtab.instance(c);
         JavacTypes types = JavacTypes.instance(c);
 //        print("noSymbol", syms.noSymbol);
 //        print("errSymbol", syms.errSymbol);
 //        print("unknownSymbol", syms.unknownSymbol);
 //        print("botType", syms.botType);
 //        print("errType", syms.errType);
 //        print("unknownType", syms.unknownType);
         for (Field f: Symtab.class.getDeclaredFields()) {
 //            System.err.println(f.getType() + " " + f.getName());
             // Temporarily ignore methodHandle and transientMethodHandle
             // during API evolution
             if (f.getName().toLowerCase().contains("methodhandle"))
                 continue;
             Class<?> ft = f.getType();
             if (TypeMirror.class.isAssignableFrom(ft))
                 print(f.getName(), (TypeMirror) f.get(syms), types);
             else if(Element.class.isAssignableFrom(ft))
                 print(f.getName(), (Element) f.get(syms));
         }
         if (errors > 0)
             throw new Exception(errors + " errors occurred");
     }
     void print(String label, Element e) {
         ElemPrinter ep = new ElemPrinter();
         System.err.println("Test " + label);
         ep.visit(e);
         System.err.println();
     }
     void print(String label, TypeMirror t, Types types) {
         TypePrinter tp = new TypePrinter();
         System.err.println("Test " + label);
         tp.visit(t, types);
         System.err.println();
     }
     void error(String msg) {
         System.err.println("Error: " + msg);
         errors++;
     }
     int errors;
     class ElemPrinter extends ElementScanner7<Void, Void> {
         @Override
         public Void visitPackage(PackageElement e, Void p) {
             show("package", e);
             indent(+1);
             super.visitPackage(e, p);
             indent(-1);
             return null;
         }
         @Override
         public Void visitType(TypeElement e, Void p) {
             show("type", e);
             indent(+1);
             super.visitType(e, p);
             indent(-1);
             return null;
         }
         @Override
         public Void visitVariable(VariableElement e, Void p) {
             show("variable", e);
             indent(+1);
             super.visitVariable(e, p);
             indent(-1);
             return null;
         }
         @Override
         public Void visitExecutable(ExecutableElement e, Void p) {
             show("executable", e);
             indent(+1);
             super.visitExecutable(e, p);
             indent(-1);
             return null;
         }
         @Override
         public Void visitTypeParameter(TypeParameterElement e, Void p) {
             show("type parameter", e);
             indent(+1);
             super.visitTypeParameter(e, p);
             indent(-1);
             return null;
         }
         @Override
         public Void visitUnknown(Element e, Void p) {
             show("unknown", e);
             indent(+1);
             try {
                 super.visitUnknown(e, p);
             } catch (UnknownElementException ex) {
                 System.err.println("caught " + ex);
             }
             indent(-1);
             return null;
         }
         void indent(int i) {
             indent += i;
         }
         String sp(int w) {
             StringBuilder sb = new StringBuilder();
             for (int i = 0; i < w; i++)
                 sb.append("    ");
             return sb.toString();
         }
         void show(String label, Element e) {
             System.err.println(sp(indent) + label
                     + ": mods:" + e.getModifiers()
                     + " " + e.getSimpleName()
                     + ", kind: " + e.getKind()
                     + ", type: " + e.asType()
                     + ", encl: " + e.getEnclosingElement());
             // The following checks help establish why NPE might occur when trying to scan children
             if (e instanceof ClassSymbol) {
                 ClassSymbol csym = (ClassSymbol) e;
                 if (csym.members_field == null)
                     error("members_field is null");
                 if (csym.type == null)
                     System.err.println("type is null");
             }
         }
         int indent;
     };
     class TypePrinter extends SimpleTypeVisitor7<Void, Types> {
         @Override
         public Void defaultAction(TypeMirror m, Types types) {
             System.err.println(m.getKind() + " " + m + " " + types.asElement(m));
             return null;
         }
         @Override
         public Void visitUnknown(TypeMirror t, Types types) {
             try {
                 return super.visitUnknown(t, types);
             } catch (UnknownTypeException ex) {
                 System.err.println("caught " + ex);
                 return null;
             }
         }
     };
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/processing/model/TestSymtabItems.java@938dda0bec17 (annotated)

test/tools/javac/processing/model/TestSymtabItems.java