| /* |
| * Copyright (c) 2006, 2016, 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 6346249 6392177 6411385 |
| * @summary new Trees API |
| * @modules jdk.compiler/com.sun.tools.javac.tree |
| */ |
| |
| import java.io.*; |
| import java.lang.annotation.*; |
| import java.util.*; |
| import javax.annotation.processing.*; |
| import javax.lang.model.SourceVersion; |
| import javax.lang.model.element.*; |
| import javax.lang.model.type.*; |
| import javax.tools.*; |
| |
| import com.sun.source.tree.*; |
| import com.sun.source.util.*; |
| import com.sun.tools.javac.tree.JCTree; |
| import com.sun.tools.javac.tree.TreeInfo; |
| |
| @Anno |
| @SupportedAnnotationTypes("*") |
| public class TestTrees extends AbstractProcessor { |
| @Anno |
| void annoMethod() { } |
| |
| @Anno |
| int annoField; |
| |
| @Anno |
| public TestTrees() { |
| } |
| |
| static final String testSrcDir = System.getProperty("test.src"); |
| static final String testClassDir = System.getProperty("test.classes"); |
| static final String self = TestTrees.class.getName(); |
| static PrintWriter out = new PrintWriter(System.err, true); |
| |
| public static void main(String[] args) throws IOException { |
| new TestTrees().run(); |
| } |
| |
| void run() throws IOException { |
| |
| JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); |
| |
| DiagnosticListener<JavaFileObject> dl = new DiagnosticListener<JavaFileObject>() { |
| public void report(Diagnostic d) { |
| error(d.toString()); |
| } |
| }; |
| |
| try (StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, null)) { |
| Iterable<? extends JavaFileObject> files = |
| fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrcDir, self + ".java"))); |
| |
| Iterable<String> opts = Arrays.asList( |
| "--add-exports", "jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED", |
| "-d", ".", |
| "-XDcompilePolicy=simple"); |
| |
| System.err.println("simple compilation, no processing"); |
| JavacTask task = (JavacTask) tool.getTask(out, fm, dl, opts, null, files); |
| task.setTaskListener(new MyTaskListener(task)); |
| if (!task.call()) |
| throw new AssertionError("compilation failed"); |
| |
| opts = Arrays.asList( |
| "--add-exports", "jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED", |
| "-XDaccessInternalAPI", |
| "-d", ".", |
| "-processorpath", testClassDir, |
| "-processor", self, |
| "-XDcompilePolicy=simple"); |
| |
| System.err.println(); |
| System.err.println("compilation with processing"); |
| task = (JavacTask) tool.getTask(out, fm, dl,opts, null, files); |
| if (!task.call()) |
| throw new AssertionError("compilation failed"); |
| |
| if (errors > 0) |
| throw new AssertionError(errors + " errors occurred"); |
| } |
| } |
| |
| void testElement(Trees trees, Element e) { |
| trees.getClass(); |
| e.getClass(); |
| |
| System.err.println("testElement: " + e); |
| Tree tree = trees.getTree(e); |
| //System.err.println(tree); |
| |
| if (TreeInfo.symbolFor((JCTree)tree) != e) |
| error("bad result from getTree"); |
| |
| TreePath path = trees.getPath(e); |
| if (path == null) { |
| error("getPath returned null"); |
| return; |
| } |
| if (path.getLeaf() != tree) |
| error("bad result from getPath"); |
| |
| Element e2 = trees.getElement(path); |
| if (e2 == null) { |
| error("getElement returned null"); |
| return; |
| } |
| if (e2 != e) |
| error("bad result from getElement"); |
| |
| // The TypeMirror is not available yet when annotation processing; |
| // it is set up later during ANALYSE. |
| TypeMirror t = trees.getTypeMirror(path); |
| if (t != null && t.getKind() == TypeKind.DECLARED && |
| ((DeclaredType)t).asElement() != e2) |
| error("bad result from getTypeMirror"); |
| |
| for (AnnotationMirror m: e.getAnnotationMirrors()) { |
| testAnnotation(trees, e, m); |
| } |
| } |
| |
| void testAnnotation(Trees trees, Element e, AnnotationMirror a) { |
| System.err.println("testAnnotation: " + e + " " + a); |
| Tree tree = trees.getTree(e, a); |
| |
| if (tree.getKind() != Tree.Kind.ANNOTATION && tree.getKind() != Tree.Kind.TYPE_ANNOTATION) |
| error("bad result from getTree"); |
| |
| TreePath path = trees.getPath(e, a); |
| if (path.getLeaf() != tree) |
| error("bad result from getPath"); |
| } |
| |
| void testAllDeclarations(Trees trees, CompilationUnitTree cut) { |
| new TreePathScanner<Void, Void>() { |
| @Override public Void scan(Tree tree, Void p) { |
| if (tree == null) return null; |
| switch (tree.getKind()) { |
| case METHOD: case CLASS: case VARIABLE: case TYPE_PARAMETER: |
| TreePath path = new TreePath(getCurrentPath(), tree); |
| Element el = trees.getElement(path); |
| if (el == null) { |
| error("null element"); |
| } else { |
| TreePath inferred = trees.getPath(el); |
| if (inferred == null) { |
| error("null path"); |
| } else { |
| if (inferred.getLeaf() != path.getLeaf()) |
| error("bad result from getPath"); |
| } |
| if (trees.getTree(el) != path.getLeaf()) |
| error("bad result from getTree"); |
| for (AnnotationMirror m: el.getAnnotationMirrors()) { |
| testAnnotation(trees, el, m); |
| } |
| } |
| } |
| return super.scan(tree, p); |
| } |
| }.scan(cut, null); |
| } |
| |
| void error(String msg) { |
| if (messager != null) |
| // annotation processing will happen in a separate instance/classloader |
| // so pass the message back to the calling instance. |
| messager.printMessage(Diagnostic.Kind.ERROR, msg); |
| else { |
| System.err.println(msg); |
| errors++; |
| } |
| |
| } |
| |
| Messager messager; |
| int errors; |
| |
| |
| public boolean process(Set<? extends TypeElement> annos, RoundEnvironment rEnv) { |
| Trees trees = Trees.instance(processingEnv); |
| messager = processingEnv.getMessager(); |
| |
| for (Element e: rEnv.getRootElements()) { |
| testElement(trees, e); |
| } |
| |
| for (TypeElement anno: annos) { |
| Set<? extends Element> elts = rEnv.getElementsAnnotatedWith(anno); |
| System.err.println("anno: " + anno); |
| System.err.println("elts: " + elts); |
| if (elts != null) { // 6397298, should return empty set |
| for (Element e: rEnv.getElementsAnnotatedWith(anno)) |
| testElement(trees, e); |
| } |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public SourceVersion getSupportedSourceVersion() { |
| return SourceVersion.latest(); |
| } |
| |
| class MyTaskListener implements TaskListener { |
| MyTaskListener(JavacTask task) { |
| this.task = task; |
| } |
| |
| public void started(TaskEvent e) { |
| System.err.println("started " + e); |
| } |
| |
| public void finished(TaskEvent e) { |
| //System.err.println("finished " + e); |
| switch (e.getKind()) { |
| case ANALYZE: |
| testElement(Trees.instance(task), e.getTypeElement()); |
| testAllDeclarations(Trees.instance(task), e.getCompilationUnit()); |
| break; |
| } |
| } |
| |
| private final JavacTask task; |
| } |
| |
| public static class TestTypeParams<@Anno T extends CharSequence> { |
| public <@Anno T extends Object> TestTypeParams(T param) { } |
| public <@Anno T extends Number> void m(T param) { |
| int local; |
| try { |
| new String(); |
| } catch (Exception exc) { } |
| } |
| } |
| } |
| |
| @Retention(RetentionPolicy.SOURCE) |
| @Target({ElementType.TYPE, ElementType.METHOD, ElementType.CONSTRUCTOR, ElementType.TYPE_PARAMETER, |
| ElementType.FIELD, ElementType.LOCAL_VARIABLE}) |
| @interface Anno { |
| } |