jdk8-mips64-public/langtools: test/tools/javac/api/TestContainTypes.java@959103a6100f (annotated)

test/tools/javac/api/TestContainTypes.java@959103a6100f (annotated)

test/tools/javac/api/TestContainTypes.java

Wed, 27 Apr 2016 01:34:52 +0800

author: aoqi
date: Wed, 27 Apr 2016 01:34:52 +0800
changeset 0: 959103a6100f
permissions: -rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

 /*
  * Copyright (c) 2010, 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 6981185
  * @summary  com.sun.tools.model.JavacTypes.contains() calls Type.contains instead of Types.containsType
  * @run main TestContainTypes
  */
 import java.net.URI;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Set;
 import javax.annotation.processing.AbstractProcessor;
 import javax.annotation.processing.RoundEnvironment;
 import javax.lang.model.element.Element;
 import javax.lang.model.element.TypeElement;
 import javax.lang.model.element.ExecutableElement;
 import javax.lang.model.type.TypeMirror;
 import javax.lang.model.type.DeclaredType;
 import javax.tools.JavaCompiler;
 import javax.tools.JavaFileObject;
 import javax.tools.SimpleJavaFileObject;
 import javax.tools.ToolProvider;
 import com.sun.source.util.JavacTask;
 import javax.annotation.processing.SupportedSourceVersion;
 import javax.lang.model.SourceVersion;
 public class TestContainTypes {
     enum ClassType {
         OBJECT("Object"),
         NUMBER("Number"),
         INTEGER("Integer"),
         STRING("String");
         String classStub;
         ClassType(String classStub) {
             this.classStub = classStub;
         }
         boolean subtypeOf(ClassType that) {
             switch (that) {
                 case OBJECT: return true;
                 case NUMBER: return this == NUMBER || this == INTEGER;
                 case INTEGER: return this == INTEGER;
                 case STRING: return this == STRING;
                 default: throw new AssertionError("Bad type kind in subtyping test");
             }
         }
     }
     enum ParameterType {
         INVARIANT("List<#1>"),
         COVARIANT("List<? extends #1>"),
         CONTRAVARIANT("List<? super #1>"),
         BIVARIANT("List<?>");
         String paramTypeStub;
         ParameterType(String paramTypeStub) {
             this.paramTypeStub = paramTypeStub;
         }
         String instantiate(ClassType ct) {
             return paramTypeStub.replace("#1", ct.classStub);
         }
         static boolean contains(ParameterType pt1, ClassType ct1,
                 ParameterType pt2, ClassType ct2) {
             switch (pt1) {
                 case INVARIANT: return (pt2 == INVARIANT && ct1 == ct2) ||
                                            (pt2 == CONTRAVARIANT && ct1 == ct2 && ct1 == ClassType.OBJECT);
                 case COVARIANT: return ((pt2 == INVARIANT || pt2 == COVARIANT) &&
                                             ct2.subtypeOf(ct1)) ||
                                             (ct1 == ClassType.OBJECT);
                 case CONTRAVARIANT: return (pt2 == INVARIANT || pt2 == CONTRAVARIANT) &&
                                             ct1.subtypeOf(ct2);
                 case BIVARIANT: return true;
                 default: throw new AssertionError("Bad type kind in containment test");
             }
         }
     }
     static class JavaSource extends SimpleJavaFileObject {
         final static String sourceStub =
                         "import java.util.List;\n" +
                         "@interface ToCheck {}\n" +
                         "class Test {\n" +
                         "   @ToCheck void test(#A a, #B b) {}\n" +
                         "}\n";
         String source;
         public JavaSource(String typeA, String typeB) {
             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
             source = sourceStub.replace("#A", typeA).replace("#B", typeB);
         }
         @Override
         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
             return source;
         }
     }
     public static void main(String... args) throws Exception {
         for (ClassType ctA : ClassType.values()) {
             for (ParameterType ptA : ParameterType.values()) {
                 for (ClassType ctB : ClassType.values()) {
                     for (ParameterType ptB : ParameterType.values()) {
                         compileAndCheck(ptA, ctA, ptB, ctB);
                     }
                 }
             }
         }
     }
     static void compileAndCheck(ParameterType ptA, ClassType ctA, ParameterType ptB, ClassType ctB) throws Exception {
         JavaSource source = new JavaSource(ptA.instantiate(ctA), ptB.instantiate(ctB));
         final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
         JavacTask ct = (JavacTask)tool.getTask(null, null, null,
                 null, null, Arrays.asList(source));
         ct.setProcessors(Arrays.asList(new ContainTypesTester(ParameterType.contains(ptA, ctA, ptB, ctB), source)));
         System.err.println("A = " + ptA +" / " + ptA.instantiate(ctA));
         System.err.println("B = " + ptB +" / " + ptB.instantiate(ctB));
         System.err.println("Source = " + source.source);
         ct.analyze();
     }
     @SupportedSourceVersion(SourceVersion.RELEASE_7)
     static class ContainTypesTester extends AbstractProcessor {
         boolean expected;
         JavaSource source;
         ContainTypesTester(boolean expected, JavaSource source) {
             this.expected = expected;
             this.source = source;
         }
         @Override
         public Set<String> getSupportedAnnotationTypes() {
             Set<String> supportedAnnos = new HashSet();
             supportedAnnos.add("*");
             return supportedAnnos;
         }
         private void error(String msg) {
             System.err.println(source.source);
             throw new AssertionError(msg);
         }
         @Override
         public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
             if (roundEnv.getRootElements().size() == 0) {
                 return true;
             }
             if (annotations.isEmpty() || annotations.size() > 1) {
                 error("no anno found/wrong number of annotations found: " + annotations.size());
             }
             TypeElement anno = (TypeElement)annotations.toArray()[0];
             Set<? extends Element> annoElems = roundEnv.getElementsAnnotatedWith(anno);
             if (annoElems.isEmpty() || annoElems.size() > 1) {
                 error("no annotated element found/wrong number of annotated elements found: " + annoElems.size());
             }
             Element annoElement = (Element)annoElems.toArray()[0];
             if (!(annoElement instanceof ExecutableElement)) {
                 error("annotated element must be a method");
             }
             ExecutableElement method = (ExecutableElement)annoElement;
             if (method.getParameters().size() != 2) {
                 error("annotated method must have 2 arguments");
             }
             DeclaredType d1 = (DeclaredType)method.getParameters().get(0).asType();
             DeclaredType d2 = (DeclaredType)method.getParameters().get(1).asType();
             if (d1.getTypeArguments().size() != 1 ||
                     d1.getTypeArguments().size() != 1) {
                 error("parameter type must be generic in one type-variable");
             }
             TypeMirror t1 = d1.getTypeArguments().get(0);
             TypeMirror t2 = d2.getTypeArguments().get(0);
             if (processingEnv.getTypeUtils().contains(t1, t2) != expected) {
                 error("bad type containment result\n" +
                         "t1 : " + t1 +"\n" +
                         "t2 : " + t2 +"\n" +
                         "expected answer : " + expected +"\n");
             }
             return true;
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/api/TestContainTypes.java@959103a6100f (annotated)

test/tools/javac/api/TestContainTypes.java