1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/api/TestContainTypes.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,216 @@
1.4 +/*
1.5 + * Copyright (c) 2010, 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 6981185
1.30 + * @summary com.sun.tools.model.JavacTypes.contains() calls Type.contains instead of Types.containsType
1.31 + * @run main TestContainTypes
1.32 + */
1.33 +
1.34 +import java.net.URI;
1.35 +import java.util.Arrays;
1.36 +import java.util.HashSet;
1.37 +import java.util.Set;
1.38 +import javax.annotation.processing.AbstractProcessor;
1.39 +import javax.annotation.processing.RoundEnvironment;
1.40 +import javax.lang.model.element.Element;
1.41 +import javax.lang.model.element.TypeElement;
1.42 +import javax.lang.model.element.ExecutableElement;
1.43 +import javax.lang.model.type.TypeMirror;
1.44 +import javax.lang.model.type.DeclaredType;
1.45 +import javax.tools.JavaCompiler;
1.46 +import javax.tools.JavaFileObject;
1.47 +import javax.tools.SimpleJavaFileObject;
1.48 +import javax.tools.ToolProvider;
1.49 +
1.50 +import com.sun.source.util.JavacTask;
1.51 +import javax.annotation.processing.SupportedSourceVersion;
1.52 +import javax.lang.model.SourceVersion;
1.53 +
1.54 +public class TestContainTypes {
1.55 +
1.56 + enum ClassType {
1.57 + OBJECT("Object"),
1.58 + NUMBER("Number"),
1.59 + INTEGER("Integer"),
1.60 + STRING("String");
1.61 +
1.62 + String classStub;
1.63 +
1.64 + ClassType(String classStub) {
1.65 + this.classStub = classStub;
1.66 + }
1.67 +
1.68 + boolean subtypeOf(ClassType that) {
1.69 + switch (that) {
1.70 + case OBJECT: return true;
1.71 + case NUMBER: return this == NUMBER || this == INTEGER;
1.72 + case INTEGER: return this == INTEGER;
1.73 + case STRING: return this == STRING;
1.74 + default: throw new AssertionError("Bad type kind in subtyping test");
1.75 + }
1.76 + }
1.77 + }
1.78 +
1.79 + enum ParameterType {
1.80 + INVARIANT("List<#1>"),
1.81 + COVARIANT("List<? extends #1>"),
1.82 + CONTRAVARIANT("List<? super #1>"),
1.83 + BIVARIANT("List<?>");
1.84 +
1.85 + String paramTypeStub;
1.86 +
1.87 + ParameterType(String paramTypeStub) {
1.88 + this.paramTypeStub = paramTypeStub;
1.89 + }
1.90 +
1.91 + String instantiate(ClassType ct) {
1.92 + return paramTypeStub.replace("#1", ct.classStub);
1.93 + }
1.94 +
1.95 + static boolean contains(ParameterType pt1, ClassType ct1,
1.96 + ParameterType pt2, ClassType ct2) {
1.97 + switch (pt1) {
1.98 + case INVARIANT: return (pt2 == INVARIANT && ct1 == ct2) ||
1.99 + (pt2 == CONTRAVARIANT && ct1 == ct2 && ct1 == ClassType.OBJECT);
1.100 + case COVARIANT: return ((pt2 == INVARIANT || pt2 == COVARIANT) &&
1.101 + ct2.subtypeOf(ct1)) ||
1.102 + (ct1 == ClassType.OBJECT);
1.103 + case CONTRAVARIANT: return (pt2 == INVARIANT || pt2 == CONTRAVARIANT) &&
1.104 + ct1.subtypeOf(ct2);
1.105 + case BIVARIANT: return true;
1.106 + default: throw new AssertionError("Bad type kind in containment test");
1.107 + }
1.108 + }
1.109 + }
1.110 +
1.111 + static class JavaSource extends SimpleJavaFileObject {
1.112 +
1.113 + final static String sourceStub =
1.114 + "import java.util.List;\n" +
1.115 + "@interface ToCheck {}\n" +
1.116 + "class Test {\n" +
1.117 + " @ToCheck void test(#A a, #B b) {}\n" +
1.118 + "}\n";
1.119 +
1.120 + String source;
1.121 +
1.122 + public JavaSource(String typeA, String typeB) {
1.123 + super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
1.124 + source = sourceStub.replace("#A", typeA).replace("#B", typeB);
1.125 + }
1.126 +
1.127 + @Override
1.128 + public CharSequence getCharContent(boolean ignoreEncodingErrors) {
1.129 + return source;
1.130 + }
1.131 + }
1.132 +
1.133 + public static void main(String... args) throws Exception {
1.134 + for (ClassType ctA : ClassType.values()) {
1.135 + for (ParameterType ptA : ParameterType.values()) {
1.136 + for (ClassType ctB : ClassType.values()) {
1.137 + for (ParameterType ptB : ParameterType.values()) {
1.138 + compileAndCheck(ptA, ctA, ptB, ctB);
1.139 + }
1.140 + }
1.141 + }
1.142 + }
1.143 + }
1.144 +
1.145 + static void compileAndCheck(ParameterType ptA, ClassType ctA, ParameterType ptB, ClassType ctB) throws Exception {
1.146 + JavaSource source = new JavaSource(ptA.instantiate(ctA), ptB.instantiate(ctB));
1.147 + final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
1.148 + JavacTask ct = (JavacTask)tool.getTask(null, null, null,
1.149 + null, null, Arrays.asList(source));
1.150 + ct.setProcessors(Arrays.asList(new ContainTypesTester(ParameterType.contains(ptA, ctA, ptB, ctB), source)));
1.151 + System.err.println("A = " + ptA +" / " + ptA.instantiate(ctA));
1.152 + System.err.println("B = " + ptB +" / " + ptB.instantiate(ctB));
1.153 + System.err.println("Source = " + source.source);
1.154 + ct.analyze();
1.155 + }
1.156 +
1.157 + @SupportedSourceVersion(SourceVersion.RELEASE_7)
1.158 + static class ContainTypesTester extends AbstractProcessor {
1.159 +
1.160 + boolean expected;
1.161 + JavaSource source;
1.162 +
1.163 + ContainTypesTester(boolean expected, JavaSource source) {
1.164 + this.expected = expected;
1.165 + this.source = source;
1.166 + }
1.167 +
1.168 + @Override
1.169 + public Set<String> getSupportedAnnotationTypes() {
1.170 + Set<String> supportedAnnos = new HashSet();
1.171 + supportedAnnos.add("*");
1.172 + return supportedAnnos;
1.173 + }
1.174 +
1.175 + private void error(String msg) {
1.176 + System.err.println(source.source);
1.177 + throw new AssertionError(msg);
1.178 + }
1.179 +
1.180 + @Override
1.181 + public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
1.182 + if (roundEnv.getRootElements().size() == 0) {
1.183 + return true;
1.184 + }
1.185 + if (annotations.isEmpty() || annotations.size() > 1) {
1.186 + error("no anno found/wrong number of annotations found: " + annotations.size());
1.187 + }
1.188 + TypeElement anno = (TypeElement)annotations.toArray()[0];
1.189 + Set<? extends Element> annoElems = roundEnv.getElementsAnnotatedWith(anno);
1.190 + if (annoElems.isEmpty() || annoElems.size() > 1) {
1.191 + error("no annotated element found/wrong number of annotated elements found: " + annoElems.size());
1.192 + }
1.193 + Element annoElement = (Element)annoElems.toArray()[0];
1.194 + if (!(annoElement instanceof ExecutableElement)) {
1.195 + error("annotated element must be a method");
1.196 + }
1.197 + ExecutableElement method = (ExecutableElement)annoElement;
1.198 + if (method.getParameters().size() != 2) {
1.199 + error("annotated method must have 2 arguments");
1.200 + }
1.201 + DeclaredType d1 = (DeclaredType)method.getParameters().get(0).asType();
1.202 + DeclaredType d2 = (DeclaredType)method.getParameters().get(1).asType();
1.203 + if (d1.getTypeArguments().size() != 1 ||
1.204 + d1.getTypeArguments().size() != 1) {
1.205 + error("parameter type must be generic in one type-variable");
1.206 + }
1.207 + TypeMirror t1 = d1.getTypeArguments().get(0);
1.208 + TypeMirror t2 = d2.getTypeArguments().get(0);
1.209 +
1.210 + if (processingEnv.getTypeUtils().contains(t1, t2) != expected) {
1.211 + error("bad type containment result\n" +
1.212 + "t1 : " + t1 +"\n" +
1.213 + "t2 : " + t2 +"\n" +
1.214 + "expected answer : " + expected +"\n");
1.215 + }
1.216 + return true;
1.217 + }
1.218 + }
1.219 +}
