| /* |
| * Copyright (c) 2005, 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 4813736 8013256 |
| * @summary Additional functionality test of task and JSR 269 |
| * @author Peter von der Ah\u00e9 |
| * @library ./lib |
| * @modules jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.code |
| * jdk.compiler/com.sun.tools.javac.parser |
| * jdk.compiler/com.sun.tools.javac.util |
| * @build ToolTester |
| * @run main TestJavacTaskScanner TestJavacTaskScanner.java |
| */ |
| |
| import com.sun.tools.javac.api.JavacTaskImpl; |
| import com.sun.tools.javac.parser.*; |
| import com.sun.tools.javac.parser.Tokens.Token; |
| import com.sun.tools.javac.util.*; |
| |
| import java.io.*; |
| import java.net.*; |
| import java.nio.*; |
| import java.nio.charset.Charset; |
| import java.util.Arrays; |
| |
| import javax.lang.model.element.Element; |
| import javax.lang.model.element.TypeElement; |
| import javax.lang.model.type.DeclaredType; |
| import javax.lang.model.type.TypeMirror; |
| import javax.lang.model.util.ElementFilter; |
| import javax.lang.model.util.Elements; |
| import javax.lang.model.util.Types; |
| import javax.tools.*; |
| |
| import static javax.tools.StandardLocation.CLASS_PATH; |
| import static javax.tools.StandardLocation.SOURCE_PATH; |
| import static javax.tools.StandardLocation.CLASS_OUTPUT; |
| |
| public class TestJavacTaskScanner extends ToolTester { |
| |
| final JavacTaskImpl task; |
| final Elements elements; |
| final Types types; |
| |
| int numTokens; |
| int numParseTypeElements; |
| int numAllMembers; |
| |
| TestJavacTaskScanner(File file) { |
| final Iterable<? extends JavaFileObject> compilationUnits = |
| fm.getJavaFileObjects(new File[] {file}); |
| StandardJavaFileManager fm = getLocalFileManager(tool, null, null); |
| java.util.List<String> options = Arrays.asList( |
| "--add-exports", "jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED", |
| "--add-exports", "jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED", |
| "--add-exports", "jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED", |
| "--add-exports", "jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED"); |
| task = (JavacTaskImpl)tool.getTask(null, fm, null, options, null, compilationUnits); |
| task.getContext().put(ScannerFactory.scannerFactoryKey, |
| new MyScanner.Factory(task.getContext(), this)); |
| elements = task.getElements(); |
| types = task.getTypes(); |
| } |
| |
| public void run() { |
| Iterable<? extends TypeElement> toplevels; |
| toplevels = ElementFilter.typesIn(task.enter(task.parse())); |
| for (TypeElement clazz : toplevels) { |
| System.out.format("Testing %s:%n%n", clazz.getSimpleName()); |
| testParseType(clazz); |
| testGetAllMembers(clazz); |
| System.out.println(); |
| System.out.println(); |
| System.out.println(); |
| } |
| |
| System.out.println("#tokens: " + numTokens); |
| System.out.println("#parseTypeElements: " + numParseTypeElements); |
| System.out.println("#allMembers: " + numAllMembers); |
| |
| check(numTokens, "#Tokens", 1054); |
| check(numParseTypeElements, "#parseTypeElements", 158); |
| check(numAllMembers, "#allMembers", 52); |
| } |
| |
| void check(int value, String name, int expected) { |
| // allow some slop in the comparison to allow for minor edits in the |
| // test and in the platform |
| if (value < expected * 9 / 10) |
| throw new Error(name + " lower than expected; expected " + expected + "; found: " + value); |
| if (value > expected * 11 / 10) |
| throw new Error(name + " higher than expected; expected " + expected + "; found: " + value); |
| } |
| |
| void testParseType(TypeElement clazz) { |
| DeclaredType type = (DeclaredType)task.parseType("List<String>", clazz); |
| for (Element member : elements.getAllMembers((TypeElement)type.asElement())) { |
| TypeMirror mt = types.asMemberOf(type, member); |
| System.out.format("type#%d: %s : %s -> %s%n", |
| numParseTypeElements, member.getSimpleName(), member.asType(), mt); |
| numParseTypeElements++; |
| } |
| } |
| |
| public static void main(String... args) throws IOException { |
| String srcdir = System.getProperty("test.src"); |
| try (TestJavacTaskScanner t = new TestJavacTaskScanner(new File(srcdir, args[0]))) { |
| t.run(); |
| } |
| } |
| |
| private void testGetAllMembers(TypeElement clazz) { |
| for (Element member : elements.getAllMembers(clazz)) { |
| System.out.format("elem#%d: %s : %s%n", |
| numAllMembers, member.getSimpleName(), member.asType()); |
| numAllMembers++; |
| } |
| } |
| |
| /* Similar to ToolTester.getFileManager, except that this version also ensures |
| * javac classes will be available on the classpath. The javac classes are assumed |
| * to be on the classpath used to run this test (this is true when using jtreg). |
| * The classes are found by obtaining the URL for a sample javac class, using |
| * getClassLoader().getResource(), and then deconstructing the URL to find the |
| * underlying directory or jar file to place on the classpath. |
| */ |
| public StandardJavaFileManager getLocalFileManager(JavaCompiler tool, |
| DiagnosticListener<JavaFileObject> dl, |
| Charset encoding) { |
| StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, encoding); |
| try { |
| fm.setLocation(SOURCE_PATH, Arrays.asList(test_src)); |
| fm.setLocation(CLASS_PATH, test_class_path); |
| fm.setLocation(CLASS_OUTPUT, Arrays.asList(test_classes)); |
| } catch (IOException e) { |
| throw new AssertionError(e); |
| } |
| return fm; |
| } |
| } |
| |
| class MyScanner extends Scanner { |
| |
| public static class Factory extends ScannerFactory { |
| public Factory(Context context, TestJavacTaskScanner test) { |
| super(context); |
| this.test = test; |
| } |
| |
| @Override |
| public Scanner newScanner(CharSequence input, boolean keepDocComments) { |
| if (input instanceof CharBuffer) { |
| return new MyScanner(this, (CharBuffer)input, test); |
| } else { |
| char[] array = input.toString().toCharArray(); |
| return newScanner(array, array.length, keepDocComments); |
| } |
| } |
| |
| @Override |
| public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) { |
| return new MyScanner(this, input, inputLength, test); |
| } |
| |
| private TestJavacTaskScanner test; |
| } |
| protected MyScanner(ScannerFactory fac, CharBuffer buffer, TestJavacTaskScanner test) { |
| super(fac, buffer); |
| this.test = test; |
| } |
| protected MyScanner(ScannerFactory fac, char[] input, int inputLength, TestJavacTaskScanner test) { |
| super(fac, input, inputLength); |
| this.test = test; |
| } |
| |
| public void nextToken() { |
| super.nextToken(); |
| Token tk = token(); |
| System.err.format("Saw token %s %n", tk.kind); |
| test.numTokens++; |
| } |
| |
| private TestJavacTaskScanner test; |
| |
| } |