aoqi@0: /*
aoqi@0:  * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @bug 6380016
aoqi@0:  * @summary Test that the constraints guaranteed by the Filer and maintained
aoqi@0:  * @author  Joseph D. Darcy
aoqi@0:  * @library /tools/javac/lib
aoqi@0:  * @build   JavacTestingAbstractProcessor TestNames
aoqi@0:  * @compile -processor TestNames -proc:only TestNames.java
aoqi@0:  */
aoqi@0: 
aoqi@0: import java.util.Set;
aoqi@0: import javax.annotation.processing.*;
aoqi@0: import javax.lang.model.SourceVersion;
aoqi@0: import static javax.lang.model.SourceVersion.*;
aoqi@0: import javax.lang.model.element.*;
aoqi@0: import javax.lang.model.util.*;
aoqi@0: import static javax.lang.model.util.ElementFilter.*;
aoqi@0: import static javax.tools.Diagnostic.Kind.*;
aoqi@0: import static javax.tools.StandardLocation.*;
aoqi@0: 
aoqi@0: import java.io.*;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Basic tests of semantics of javax.lang.model.element.Name
aoqi@0:  */
aoqi@0: public class TestNames extends JavacTestingAbstractProcessor {
aoqi@0:     private int round = 0;
aoqi@0: 
aoqi@0:     String stringStringName = "java.lang.String";
aoqi@0:     Name stringName = null;
aoqi@0: 
aoqi@0:     public boolean process(Set<? extends TypeElement> annotations,
aoqi@0:                            RoundEnvironment roundEnv) {
aoqi@0:         round++;
aoqi@0:         if (!roundEnv.processingOver()) {
aoqi@0:             boolean failed = false;
aoqi@0: 
aoqi@0:             switch(round) {
aoqi@0:             case 1:
aoqi@0: 
aoqi@0:             TypeElement stringMirror = eltUtils.getTypeElement(stringStringName);
aoqi@0:             stringName = stringMirror.getQualifiedName();
aoqi@0:             Name stringPseudoName = Pseudonym.getName(stringName.toString());
aoqi@0: 
aoqi@0: 
aoqi@0:             if (stringName.equals(stringPseudoName))
aoqi@0:                 failed = true;
aoqi@0:             if (!stringName.contentEquals(stringStringName))
aoqi@0:                 failed = true;
aoqi@0:             if (!stringName.contentEquals(stringPseudoName))
aoqi@0:                 failed = true;
aoqi@0: 
aoqi@0: 
aoqi@0:             try {
aoqi@0:                 // Force another round with a new context
aoqi@0:                 PrintWriter pw = new PrintWriter(filer.createSourceFile("Foo").openWriter());
aoqi@0:                 pw.println("public class Foo {}");
aoqi@0:                 pw.close();
aoqi@0:             } catch (IOException ioe) {
aoqi@0:                 throw new RuntimeException();
aoqi@0:             }
aoqi@0:             break;
aoqi@0: 
aoqi@0:             case 2:
aoqi@0:                 Name stringStringAsName = eltUtils.getName(stringStringName);
aoqi@0:                 TypeElement stringMirror2 = eltUtils.getTypeElement(stringStringName);
aoqi@0:                 Name stringName2 = stringMirror2.getQualifiedName();
aoqi@0: 
aoqi@0:                 if (stringStringAsName != stringName ||
aoqi@0:                     stringName != stringName2)
aoqi@0:                     failed = true;
aoqi@0:                 break;
aoqi@0: 
aoqi@0:             default:
aoqi@0:                 throw new RuntimeException("Unexpected round " + round);
aoqi@0:             }
aoqi@0: 
aoqi@0:             if (failed)
aoqi@0:                 throw new RuntimeException("Invalid name equality checks.");
aoqi@0:         }
aoqi@0:         return true;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private static class Pseudonym implements Name {
aoqi@0:         private String name;
aoqi@0: 
aoqi@0:         private Pseudonym(String name) {
aoqi@0:             this.name = name;
aoqi@0:         }
aoqi@0: 
aoqi@0:         public static Pseudonym getName(String name) {
aoqi@0:             return new Pseudonym(name);
aoqi@0:         }
aoqi@0: 
aoqi@0:         public boolean contentEquals(CharSequence cs) {
aoqi@0:             return name.contentEquals(cs);
aoqi@0:         }
aoqi@0: 
aoqi@0:         public char charAt(int index) {
aoqi@0:             return name.charAt(index);
aoqi@0:         }
aoqi@0: 
aoqi@0:         public int length() {
aoqi@0:             return name.length();
aoqi@0:         }
aoqi@0: 
aoqi@0:         public CharSequence subSequence(int start, int end) {
aoqi@0:             return name.subSequence(start, end);
aoqi@0:         }
aoqi@0: 
aoqi@0:         public String toString() {
aoqi@0:             return name;
aoqi@0:         }
aoqi@0:     }
aoqi@0: }