306 lines
11 KiB
Java
306 lines
11 KiB
Java
/*
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* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8065360
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* @summary The test checks dependencies through type parameters and implements/extends statements.
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* @library /tools/lib
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.main
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* @build toolbox.ToolBox ImportDependenciesTest
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* @run main ImportDependenciesTest
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*/
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import javax.tools.JavaCompiler;
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import javax.tools.ToolProvider;
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import java.io.StringWriter;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import toolbox.ToolBox;
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/**
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* The test checks that code which contains dependencies through type parameters,
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* implements/extends statements compiles properly. All combinations of
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* import types are tested. In addition, the test checks various combinations
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* of classes.
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*/
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public class ImportDependenciesTest {
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private static final String sourceTemplate =
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"package pkg;\n" +
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"#IMPORT\n" +
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"public class Test {\n" +
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" static #CLASS_TYPE InnerClass#TYPE_PARAMETER #PARENT {\n" +
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" static class Inner1 {\n" +
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" }\n" +
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" interface Inner2 {\n" +
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" }\n" +
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" interface Inner3 {\n" +
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" }\n" +
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" }\n" +
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" static class InnerClass1 {\n" +
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" static class IInner1 {\n" +
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" }\n" +
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" }\n" +
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" static class InnerInterface1 {\n" +
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" interface IInner2 {\n" +
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" }\n" +
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" }\n" +
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" static class InnerInterface2 {\n" +
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" interface IInner3 {\n" +
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" }\n" +
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" }\n" +
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"}";
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public static void main(String[] args) {
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new ImportDependenciesTest().test();
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}
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public void test() {
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List<List<InnerClass>> typeParameters = InnerClass.getAllCombinationsForTypeParameter();
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List<List<InnerClass>> parents = InnerClass.getAllCombinationsForInheritance();
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int passed = 0;
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int total = 0;
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for (ClassType classType : ClassType.values()) {
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for (List<InnerClass> parent : parents) {
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if (!classType.canBeInherited(parent)) {
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continue;
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}
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for (List<InnerClass> typeParameter : typeParameters) {
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List<InnerClass> innerClasses = new ArrayList<>(typeParameter);
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innerClasses.addAll(parent);
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for (ImportType importType : ImportType.values()) {
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++total;
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String source = sourceTemplate
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.replace("#IMPORT", importType.generateImports(innerClasses))
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.replace("#CLASS_TYPE", classType.getClassType())
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.replace("#TYPE_PARAMETER", generateTypeParameter(typeParameter))
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.replace("#PARENT", classType.generateInheritanceString(parent));
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CompilationResult result = compile(new ToolBox.JavaSource("pkg/Test.java", source));
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if (!result.isSuccessful) {
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echo("Compilation failed!");
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echo(source);
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echo(result.message);
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echo();
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} else {
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++passed;
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}
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}
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}
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}
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}
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String message = String.format(
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"Total test cases run: %d, passed: %d, failed: %d.",
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total, passed, total - passed);
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if (passed != total) {
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throw new RuntimeException(message);
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}
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echo(message);
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}
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private String generateTypeParameter(List<InnerClass> typeParameters) {
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if (typeParameters.isEmpty()) {
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return "";
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}
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return String.format("<T extends %s>", typeParameters.stream()
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.map(InnerClass::getSimpleName)
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.collect(Collectors.joining(" & ")));
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}
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private static class CompilationResult {
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public final boolean isSuccessful;
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public final String message;
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public CompilationResult(boolean isSuccessful, String message) {
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this.isSuccessful = isSuccessful;
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this.message = message;
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}
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}
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private CompilationResult compile(ToolBox.JavaSource...sources) {
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StringWriter writer = new StringWriter();
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JavaCompiler jc = ToolProvider.getSystemJavaCompiler();
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Boolean call = jc.getTask(writer, null, null, null, null, Arrays.asList(sources)).call();
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return new CompilationResult(call, writer.toString().replace(ToolBox.lineSeparator, "\n"));
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}
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public void echo() {
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echo("");
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}
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public void echo(String output) {
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printf(output + "\n");
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}
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public void printf(String template, Object...args) {
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System.err.print(String.format(template, args).replace("\n", ToolBox.lineSeparator));
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}
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enum ImportType {
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IMPORT("import"), STATIC_IMPORT("import static"),
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IMPORT_ON_DEMAND("import"), STATIC_IMPORT_ON_DEMAND("import static");
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private final String importType;
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private ImportType(String importType) {
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this.importType = importType;
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}
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private boolean isOnDemand() {
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return this == IMPORT_ON_DEMAND || this == STATIC_IMPORT_ON_DEMAND;
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}
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public String generateImports(List<InnerClass> innerClasses) {
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return innerClasses.stream()
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.map(i -> isOnDemand() ? i.getPackageName() + ".*" : i.getCanonicalName())
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.distinct()
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.map(s -> String.format("%s %s;", importType, s))
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.collect(Collectors.joining("\n"));
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}
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}
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enum ClassType {
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CLASS("class") {
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@Override
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public boolean canBeInherited(List<InnerClass> innerClasses) {
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return true;
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}
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@Override
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public String generateInheritanceString(List<InnerClass> innerClasses) {
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if (innerClasses.isEmpty()) {
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return "";
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}
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StringBuilder sb = new StringBuilder();
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InnerClass firstClass = innerClasses.get(0);
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if (firstClass.isClass()) {
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sb.append("extends ").append(firstClass.getSimpleName()).append(" ");
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}
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String str = innerClasses.stream()
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.filter(x -> !x.isClass())
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.map(InnerClass::getSimpleName)
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.collect(Collectors.joining(", "));
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if (!str.isEmpty()) {
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sb.append("implements ").append(str);
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}
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return sb.toString();
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}
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}, INTERFACE("interface") {
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@Override
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public boolean canBeInherited(List<InnerClass> innerClasses) {
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return !innerClasses.stream().anyMatch(InnerClass::isClass);
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}
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@Override
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public String generateInheritanceString(List<InnerClass> innerClasses) {
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if (innerClasses.isEmpty()) {
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return "";
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}
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return "extends " + innerClasses.stream()
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.map(InnerClass::getSimpleName)
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.collect(Collectors.joining(", "));
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}
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};
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private final String classType;
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private ClassType(String classType) {
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this.classType = classType;
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}
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public String getClassType() {
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return classType;
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}
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public abstract boolean canBeInherited(List<InnerClass> innerClasses);
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public abstract String generateInheritanceString(List<InnerClass> innerClasses);
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}
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enum InnerClass {
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INNER_1("pkg.Test.InnerClass.Inner1", true),
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INNER_2("pkg.Test.InnerClass.Inner2", true),
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INNER_3("pkg.Test.InnerClass.Inner3", true),
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IINNER_1("pkg.Test.InnerClass1.IInner1", false),
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IINNER_2("pkg.Test.InnerInterface1.IInner2", false),
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IINNER_3("pkg.Test.InnerInterface2.IInner3", false);
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private final String canonicalName;
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private final boolean isForTypeParameter;
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private InnerClass(String canonicalName, boolean isForTypeParameter) {
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this.canonicalName = canonicalName;
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this.isForTypeParameter = isForTypeParameter;
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}
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private static List<List<InnerClass>> getAllCombinations(boolean isTypeParameter) {
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List<List<InnerClass>> result = new ArrayList<>();
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List<InnerClass> tmpl = Stream.of(InnerClass.values())
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.filter(i -> i.isForTypeParameter() == isTypeParameter)
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.collect(Collectors.toCollection(ArrayList::new));
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result.add(Arrays.asList());
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for (int i = 0; i < tmpl.size(); ++i) {
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result.add(Arrays.asList(tmpl.get(i)));
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for (int j = i + 1; j < tmpl.size(); ++j) {
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result.add(Arrays.asList(tmpl.get(i), tmpl.get(j)));
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}
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}
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result.add(tmpl);
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return result;
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}
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public static List<List<InnerClass>> getAllCombinationsForTypeParameter() {
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return getAllCombinations(true);
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}
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public static List<List<InnerClass>> getAllCombinationsForInheritance() {
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return getAllCombinations(false);
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}
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public String getCanonicalName() {
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return canonicalName;
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}
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public String getSimpleName() {
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String cName = getCanonicalName();
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return cName.substring(cName.lastIndexOf('.') + 1);
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}
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public String getPackageName() {
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String cName = getCanonicalName();
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int dotIndex = cName.lastIndexOf('.');
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return dotIndex == -1 ? "" : cName.substring(0, dotIndex);
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}
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public boolean isClass() {
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return this == INNER_1 || this == IINNER_1;
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}
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private boolean isForTypeParameter() {
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return isForTypeParameter;
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}
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}
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}
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