aoqi@0: /*
aoqi@0:  * Copyright (c) 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 6981185
aoqi@0:  * @summary  com.sun.tools.model.JavacTypes.contains() calls Type.contains instead of Types.containsType
aoqi@0:  * @run main TestContainTypes
aoqi@0:  */
aoqi@0: 
aoqi@0: import java.net.URI;
aoqi@0: import java.util.Arrays;
aoqi@0: import java.util.HashSet;
aoqi@0: import java.util.Set;
aoqi@0: import javax.annotation.processing.AbstractProcessor;
aoqi@0: import javax.annotation.processing.RoundEnvironment;
aoqi@0: import javax.lang.model.element.Element;
aoqi@0: import javax.lang.model.element.TypeElement;
aoqi@0: import javax.lang.model.element.ExecutableElement;
aoqi@0: import javax.lang.model.type.TypeMirror;
aoqi@0: import javax.lang.model.type.DeclaredType;
aoqi@0: import javax.tools.JavaCompiler;
aoqi@0: import javax.tools.JavaFileObject;
aoqi@0: import javax.tools.SimpleJavaFileObject;
aoqi@0: import javax.tools.ToolProvider;
aoqi@0: 
aoqi@0: import com.sun.source.util.JavacTask;
aoqi@0: import javax.annotation.processing.SupportedSourceVersion;
aoqi@0: import javax.lang.model.SourceVersion;
aoqi@0: 
aoqi@0: public class TestContainTypes {
aoqi@0: 
aoqi@0:     enum ClassType {
aoqi@0:         OBJECT("Object"),
aoqi@0:         NUMBER("Number"),
aoqi@0:         INTEGER("Integer"),
aoqi@0:         STRING("String");
aoqi@0: 
aoqi@0:         String classStub;
aoqi@0: 
aoqi@0:         ClassType(String classStub) {
aoqi@0:             this.classStub = classStub;
aoqi@0:         }
aoqi@0: 
aoqi@0:         boolean subtypeOf(ClassType that) {
aoqi@0:             switch (that) {
aoqi@0:                 case OBJECT: return true;
aoqi@0:                 case NUMBER: return this == NUMBER || this == INTEGER;
aoqi@0:                 case INTEGER: return this == INTEGER;
aoqi@0:                 case STRING: return this == STRING;
aoqi@0:                 default: throw new AssertionError("Bad type kind in subtyping test");
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     enum ParameterType {
aoqi@0:         INVARIANT("List<#1>"),
aoqi@0:         COVARIANT("List<? extends #1>"),
aoqi@0:         CONTRAVARIANT("List<? super #1>"),
aoqi@0:         BIVARIANT("List<?>");
aoqi@0: 
aoqi@0:         String paramTypeStub;
aoqi@0: 
aoqi@0:         ParameterType(String paramTypeStub) {
aoqi@0:             this.paramTypeStub = paramTypeStub;
aoqi@0:         }
aoqi@0: 
aoqi@0:         String instantiate(ClassType ct) {
aoqi@0:             return paramTypeStub.replace("#1", ct.classStub);
aoqi@0:         }
aoqi@0: 
aoqi@0:         static boolean contains(ParameterType pt1, ClassType ct1,
aoqi@0:                 ParameterType pt2, ClassType ct2) {
aoqi@0:             switch (pt1) {
aoqi@0:                 case INVARIANT: return (pt2 == INVARIANT && ct1 == ct2) ||
aoqi@0:                                            (pt2 == CONTRAVARIANT && ct1 == ct2 && ct1 == ClassType.OBJECT);
aoqi@0:                 case COVARIANT: return ((pt2 == INVARIANT || pt2 == COVARIANT) &&
aoqi@0:                                             ct2.subtypeOf(ct1)) ||
aoqi@0:                                             (ct1 == ClassType.OBJECT);
aoqi@0:                 case CONTRAVARIANT: return (pt2 == INVARIANT || pt2 == CONTRAVARIANT) &&
aoqi@0:                                             ct1.subtypeOf(ct2);
aoqi@0:                 case BIVARIANT: return true;
aoqi@0:                 default: throw new AssertionError("Bad type kind in containment test");
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     static class JavaSource extends SimpleJavaFileObject {
aoqi@0: 
aoqi@0:         final static String sourceStub =
aoqi@0:                         "import java.util.List;\n" +
aoqi@0:                         "@interface ToCheck {}\n" +
aoqi@0:                         "class Test {\n" +
aoqi@0:                         "   @ToCheck void test(#A a, #B b) {}\n" +
aoqi@0:                         "}\n";
aoqi@0: 
aoqi@0:         String source;
aoqi@0: 
aoqi@0:         public JavaSource(String typeA, String typeB) {
aoqi@0:             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
aoqi@0:             source = sourceStub.replace("#A", typeA).replace("#B", typeB);
aoqi@0:         }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0:             return source;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void main(String... args) throws Exception {
aoqi@0:         for (ClassType ctA : ClassType.values()) {
aoqi@0:             for (ParameterType ptA : ParameterType.values()) {
aoqi@0:                 for (ClassType ctB : ClassType.values()) {
aoqi@0:                     for (ParameterType ptB : ParameterType.values()) {
aoqi@0:                         compileAndCheck(ptA, ctA, ptB, ctB);
aoqi@0:                     }
aoqi@0:                 }
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     static void compileAndCheck(ParameterType ptA, ClassType ctA, ParameterType ptB, ClassType ctB) throws Exception {
aoqi@0:         JavaSource source = new JavaSource(ptA.instantiate(ctA), ptB.instantiate(ctB));
aoqi@0:         final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
aoqi@0:         JavacTask ct = (JavacTask)tool.getTask(null, null, null,
aoqi@0:                 null, null, Arrays.asList(source));
aoqi@0:         ct.setProcessors(Arrays.asList(new ContainTypesTester(ParameterType.contains(ptA, ctA, ptB, ctB), source)));
aoqi@0:         System.err.println("A = " + ptA +" / " + ptA.instantiate(ctA));
aoqi@0:         System.err.println("B = " + ptB +" / " + ptB.instantiate(ctB));
aoqi@0:         System.err.println("Source = " + source.source);
aoqi@0:         ct.analyze();
aoqi@0:     }
aoqi@0: 
aoqi@0:     @SupportedSourceVersion(SourceVersion.RELEASE_7)
aoqi@0:     static class ContainTypesTester extends AbstractProcessor {
aoqi@0: 
aoqi@0:         boolean expected;
aoqi@0:         JavaSource source;
aoqi@0: 
aoqi@0:         ContainTypesTester(boolean expected, JavaSource source) {
aoqi@0:             this.expected = expected;
aoqi@0:             this.source = source;
aoqi@0:         }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public Set<String> getSupportedAnnotationTypes() {
aoqi@0:             Set<String> supportedAnnos = new HashSet();
aoqi@0:             supportedAnnos.add("*");
aoqi@0:             return supportedAnnos;
aoqi@0:         }
aoqi@0: 
aoqi@0:         private void error(String msg) {
aoqi@0:             System.err.println(source.source);
aoqi@0:             throw new AssertionError(msg);
aoqi@0:         }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
aoqi@0:             if (roundEnv.getRootElements().size() == 0) {
aoqi@0:                 return true;
aoqi@0:             }
aoqi@0:             if (annotations.isEmpty() || annotations.size() > 1) {
aoqi@0:                 error("no anno found/wrong number of annotations found: " + annotations.size());
aoqi@0:             }
aoqi@0:             TypeElement anno = (TypeElement)annotations.toArray()[0];
aoqi@0:             Set<? extends Element> annoElems = roundEnv.getElementsAnnotatedWith(anno);
aoqi@0:             if (annoElems.isEmpty() || annoElems.size() > 1) {
aoqi@0:                 error("no annotated element found/wrong number of annotated elements found: " + annoElems.size());
aoqi@0:             }
aoqi@0:             Element annoElement = (Element)annoElems.toArray()[0];
aoqi@0:             if (!(annoElement instanceof ExecutableElement)) {
aoqi@0:                 error("annotated element must be a method");
aoqi@0:             }
aoqi@0:             ExecutableElement method = (ExecutableElement)annoElement;
aoqi@0:             if (method.getParameters().size() != 2) {
aoqi@0:                 error("annotated method must have 2 arguments");
aoqi@0:             }
aoqi@0:             DeclaredType d1 = (DeclaredType)method.getParameters().get(0).asType();
aoqi@0:             DeclaredType d2 = (DeclaredType)method.getParameters().get(1).asType();
aoqi@0:             if (d1.getTypeArguments().size() != 1 ||
aoqi@0:                     d1.getTypeArguments().size() != 1) {
aoqi@0:                 error("parameter type must be generic in one type-variable");
aoqi@0:             }
aoqi@0:             TypeMirror t1 = d1.getTypeArguments().get(0);
aoqi@0:             TypeMirror t2 = d2.getTypeArguments().get(0);
aoqi@0: 
aoqi@0:             if (processingEnv.getTypeUtils().contains(t1, t2) != expected) {
aoqi@0:                 error("bad type containment result\n" +
aoqi@0:                         "t1 : " + t1 +"\n" +
aoqi@0:                         "t2 : " + t2 +"\n" +
aoqi@0:                         "expected answer : " + expected +"\n");
aoqi@0:             }
aoqi@0:             return true;
aoqi@0:         }
aoqi@0:     }
aoqi@0: }