| /* |
| * Copyright (c) 2013, 2015, 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 8010737 |
| * @summary javac, known parameter's names should be copied to automatically |
| * generated constructors for inner classes |
| * @modules jdk.jdeps/com.sun.tools.classfile |
| * jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.code |
| * jdk.compiler/com.sun.tools.javac.tree |
| * jdk.compiler/com.sun.tools.javac.util |
| * @run main ParameterNamesAreNotCopiedToAnonymousInitTest check_class_file check_init_symbol |
| */ |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Target; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| |
| import javax.tools.JavaCompiler; |
| import javax.tools.JavaFileObject; |
| import javax.tools.StandardJavaFileManager; |
| import javax.tools.ToolProvider; |
| |
| import com.sun.source.tree.CompilationUnitTree; |
| import com.sun.source.tree.Tree; |
| import com.sun.source.util.JavacTask; |
| import com.sun.source.util.TaskEvent; |
| import com.sun.source.util.TaskListener; |
| import com.sun.tools.classfile.ClassFile; |
| import com.sun.tools.classfile.Method; |
| import com.sun.tools.javac.api.BasicJavacTask; |
| import com.sun.tools.javac.code.Attribute.Compound; |
| import com.sun.tools.javac.code.Symbol.ClassSymbol; |
| import com.sun.tools.javac.code.Symbol.VarSymbol; |
| import com.sun.tools.javac.tree.JCTree; |
| import com.sun.tools.javac.tree.TreeScanner; |
| import com.sun.tools.javac.util.Assert; |
| import com.sun.tools.javac.util.Context; |
| import com.sun.tools.javac.util.List; |
| import com.sun.tools.javac.util.Names; |
| |
| public class ParameterNamesAreNotCopiedToAnonymousInitTest { |
| |
| static final String noParamsErrorMsg = |
| "Test most be invoked with at least one parameter: check_class_file " + |
| "and/or check_init_symbol"; |
| static final String wrongParamsErrorMsg = |
| "Accepted arguments are: check_class_file and check_init_symbol"; |
| static final String paramNameNotCopiedAssertionMsg = |
| "The param name hasn't been copied to the init method"; |
| static final String noAnnotationsForParameterMsg = |
| "No annotations for seek parameter"; |
| static final String seekMethodNotFound = |
| "The seek init method was not found or conditions were not met"; |
| static final String nonNullParamPositionsMsg = |
| "Parameter positions shold not be null"; |
| static final String compilationFailed = |
| "Compilation failed"; |
| static final String seekMethodNotFoundMsg = |
| "The seek method was not found"; |
| |
| static final String ParamAnnotationClassName = |
| ParameterNamesAreNotCopiedToAnonymousInitTest.class.getSimpleName() + "." + |
| ParamAnnotation.class.getSimpleName(); |
| |
| public static void main(String[] args) throws Exception { |
| if (args.length == 0) { |
| throw new Error(noParamsErrorMsg); |
| } |
| new ParameterNamesAreNotCopiedToAnonymousInitTest().run(args); |
| } |
| |
| void run(String[] args) throws Exception { |
| for (String arg : args) { |
| if (arg.equals("check_class_file")) { |
| checkClassFile(new File(Paths.get(System.getProperty("test.classes"), |
| this.getClass().getName() + "$initParams$1.class").toUri()), 1); |
| checkClassFile(new File(Paths.get(System.getProperty("test.classes"), |
| this.getClass().getName() + "$Generics$1.class").toUri()), 2); |
| } else if (arg.equals("check_init_symbol")) { |
| checkInitSymbol("m1", Arrays.asList(0), Arrays.asList("i")); |
| checkInitSymbol("m2", Arrays.asList(0, 1), Arrays.asList("t1", "t2")); |
| } else { |
| error(wrongParamsErrorMsg); |
| } |
| } |
| } |
| |
| void checkClassFile(final File cfile, int numberOfParams) throws Exception { |
| ClassFile classFile = ClassFile.read(cfile); |
| boolean methodFound = false; |
| for (Method method : classFile.methods) { |
| if (method.getName(classFile.constant_pool).equals("<init>")) { |
| methodFound = true; |
| } |
| } |
| Assert.check(methodFound, seekMethodNotFoundMsg); |
| } |
| |
| /* This method expect a non-null ordered list of integers, listing the |
| * position of the parameters to be checked on the init method. Position 0 |
| * corresponds to the first parameter. |
| * |
| * As we are looking for a constructor of an anonymous class, the |
| * classOwnerName parameter must be the name of the method where the |
| * anonymous class is declared. |
| */ |
| void checkInitSymbol( |
| final String classOwnerName, |
| final java.util.List<Integer> paramsToCheck, |
| final java.util.List<String> paramNames) |
| throws IOException { |
| Assert.checkNonNull(paramsToCheck, nonNullParamPositionsMsg); |
| JavaCompiler c = ToolProvider.getSystemJavaCompiler(); |
| try (StandardJavaFileManager fm = c.getStandardFileManager(null, null, null)) { |
| Iterable<? extends JavaFileObject> fos = |
| fm.getJavaFileObjectsFromFiles( |
| Arrays.asList(new File(System.getProperty("test.src"), |
| this.getClass().getName() + ".java"))); |
| java.util.List<String> options = Arrays.asList( |
| "-XaddExports:" |
| + "jdk.jdeps/com.sun.tools.classfile=ALL-UNNAMED," |
| + "jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED," |
| + "jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED," |
| + "jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED," |
| + "jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED", |
| "-d", System.getProperty("user.dir") |
| ); |
| JavacTask task = (JavacTask) c.getTask(null, fm, null, options, null, fos); |
| |
| BasicJavacTask impl = (BasicJavacTask)task; |
| Context context = impl.getContext(); |
| final Names names = Names.instance(context); |
| |
| task.addTaskListener(new TaskListener() { |
| |
| @Override |
| public void started(TaskEvent e) {} |
| |
| @Override |
| public void finished(TaskEvent e) { |
| class TheTreeScanner extends TreeScanner { |
| boolean foundAndCorrect = false; |
| |
| @Override |
| public void visitMethodDef(JCTree.JCMethodDecl tree) { |
| ClassSymbol clazz = (ClassSymbol)tree.sym.owner; |
| if (clazz.owner.name.toString().equals(classOwnerName) && |
| tree.sym.name == names.init) { |
| |
| int currentParamPos = 0; |
| int paramArrayIndex = 0; |
| |
| List<VarSymbol> params = tree.sym.params; |
| while (params.nonEmpty() && paramArrayIndex < paramsToCheck.size()) { |
| VarSymbol param = params.head; |
| if (currentParamPos == paramsToCheck.get(paramArrayIndex)) { |
| if (!param.name.toString() |
| .equals(paramNames.get(paramArrayIndex))) { |
| error(paramNameNotCopiedAssertionMsg); |
| } |
| paramArrayIndex++; |
| } |
| currentParamPos++; |
| params = params.tail; |
| } |
| foundAndCorrect = paramArrayIndex >= paramsToCheck.size(); |
| } |
| super.visitMethodDef(tree); |
| } |
| } |
| |
| if (e.getKind() == TaskEvent.Kind.ANALYZE) { |
| CompilationUnitTree compUnitTree = e.getCompilationUnit(); |
| boolean foundAndCorrect = false; |
| for (Tree tree : compUnitTree.getTypeDecls()) { |
| TheTreeScanner scanner = new TheTreeScanner(); |
| scanner.scan((JCTree) tree); |
| foundAndCorrect = foundAndCorrect | scanner.foundAndCorrect; |
| } |
| if (!foundAndCorrect) { |
| error(seekMethodNotFound); |
| } |
| } |
| } |
| }); |
| |
| if (!task.call()) { |
| error(compilationFailed); |
| } |
| } |
| } |
| |
| void error(String msg) { |
| throw new AssertionError(msg); |
| } |
| |
| @Target(value = {ElementType.PARAMETER}) |
| @interface ParamAnnotation {} |
| |
| /* If more cases are added in the future, it should be taken into account |
| * that method checkInitSymbol locates the inner class looking for its |
| * container method, which in the cases below are m1 and m2. So new cases |
| * must have different names for container methods or method checkInitSymbol |
| * should be changed. |
| */ |
| public class initParams { |
| public initParams(@ParamAnnotation int i) {} |
| |
| public void m1() { |
| new initParams(2) {}; |
| } |
| } |
| |
| class Generics<T1> { |
| T1 obj1; |
| Object obj2; |
| <T2> Generics(@ParamAnnotation T1 t1, @ParamAnnotation T2 t2) { |
| obj1 = t1; |
| obj2 = t2; |
| } |
| |
| void m2() { |
| Generics<Integer> a = new <String>Generics<Integer>( |
| new Integer(11), "foo") {}; |
| } |
| } |
| } |
