209 lines
8.1 KiB
Java
209 lines
8.1 KiB
Java
/*
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* Copyright (c) 2005, 2023, 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 4813736 8013256
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* @summary Additional functionality test of task and JSR 269
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* @author Peter von der Ah\u00e9
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* @library ./lib
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.code
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* jdk.compiler/com.sun.tools.javac.parser
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* jdk.compiler/com.sun.tools.javac.util
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* @build ToolTester
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* @run main TestJavacTaskScanner TestJavacTaskScanner.java
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*/
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import com.sun.tools.javac.api.JavacTaskImpl;
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import com.sun.tools.javac.parser.*;
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import com.sun.tools.javac.parser.Tokens.Token;
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import com.sun.tools.javac.util.*;
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import java.io.*;
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import java.net.*;
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import java.nio.*;
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import java.nio.charset.Charset;
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import java.util.Arrays;
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import javax.lang.model.element.Element;
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import javax.lang.model.element.TypeElement;
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import javax.lang.model.type.DeclaredType;
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import javax.lang.model.type.TypeMirror;
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import javax.lang.model.util.ElementFilter;
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import javax.lang.model.util.Elements;
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import javax.lang.model.util.Types;
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import javax.tools.*;
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import static javax.tools.StandardLocation.CLASS_PATH;
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import static javax.tools.StandardLocation.SOURCE_PATH;
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import static javax.tools.StandardLocation.CLASS_OUTPUT;
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public class TestJavacTaskScanner extends ToolTester {
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final JavacTaskImpl task;
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final Elements elements;
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final Types types;
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int numTokens;
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int numParseTypeElements;
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int numAllMembers;
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TestJavacTaskScanner(File file) {
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final Iterable<? extends JavaFileObject> compilationUnits =
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fm.getJavaFileObjects(new File[] {file});
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StandardJavaFileManager fm = getLocalFileManager(tool, null, null);
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java.util.List<String> options = Arrays.asList(
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"--add-exports", "jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED",
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"--add-exports", "jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
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"--add-exports", "jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED",
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"--add-exports", "jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED");
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task = (JavacTaskImpl)tool.getTask(null, fm, null, options, null, compilationUnits);
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task.getContext().put(ScannerFactory.scannerFactoryKey,
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new MyScanner.Factory(task.getContext(), this));
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elements = task.getElements();
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types = task.getTypes();
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}
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public void run() {
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Iterable<? extends TypeElement> toplevels;
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toplevels = ElementFilter.typesIn(task.enter(task.parse()));
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for (TypeElement clazz : toplevels) {
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System.out.format("Testing %s:%n%n", clazz.getSimpleName());
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testParseType(clazz);
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testGetAllMembers(clazz);
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System.out.println();
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System.out.println();
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System.out.println();
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}
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System.out.println("#tokens: " + numTokens);
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System.out.println("#parseTypeElements: " + numParseTypeElements);
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System.out.println("#allMembers: " + numAllMembers);
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check(numTokens, "#Tokens", 1054);
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check(numParseTypeElements, "#parseTypeElements", 180);
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check(numAllMembers, "#allMembers", 64);
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}
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void check(int value, String name, int expected) {
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// allow some slop in the comparison to allow for minor edits in the
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// test and in the platform
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if (value < expected * 9 / 10)
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throw new Error(name + " lower than expected; expected " + expected + "; found: " + value);
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if (value > expected * 11 / 10)
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throw new Error(name + " higher than expected; expected " + expected + "; found: " + value);
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}
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void testParseType(TypeElement clazz) {
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DeclaredType type = (DeclaredType)task.parseType("List<String>", clazz);
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for (Element member : elements.getAllMembers((TypeElement)type.asElement())) {
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TypeMirror mt = types.asMemberOf(type, member);
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System.out.format("type#%d: %s : %s -> %s%n",
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numParseTypeElements, member.getSimpleName(), member.asType(), mt);
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numParseTypeElements++;
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}
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}
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public static void main(String... args) throws IOException {
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String srcdir = System.getProperty("test.src");
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try (TestJavacTaskScanner t = new TestJavacTaskScanner(new File(srcdir, args[0]))) {
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t.run();
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}
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}
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private void testGetAllMembers(TypeElement clazz) {
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for (Element member : elements.getAllMembers(clazz)) {
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System.out.format("elem#%d: %s : %s%n",
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numAllMembers, member.getSimpleName(), member.asType());
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numAllMembers++;
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}
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}
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/* Similar to ToolTester.getFileManager, except that this version also ensures
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* javac classes will be available on the classpath. The javac classes are assumed
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* to be on the classpath used to run this test (this is true when using jtreg).
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* The classes are found by obtaining the URL for a sample javac class, using
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* getClassLoader().getResource(), and then deconstructing the URL to find the
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* underlying directory or jar file to place on the classpath.
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*/
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public StandardJavaFileManager getLocalFileManager(JavaCompiler tool,
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DiagnosticListener<JavaFileObject> dl,
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Charset encoding) {
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StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, encoding);
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try {
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fm.setLocation(SOURCE_PATH, Arrays.asList(test_src));
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fm.setLocation(CLASS_PATH, test_class_path);
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fm.setLocation(CLASS_OUTPUT, Arrays.asList(test_classes));
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} catch (IOException e) {
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throw new AssertionError(e);
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}
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return fm;
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}
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}
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class MyScanner extends Scanner {
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public static class Factory extends ScannerFactory {
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public Factory(Context context, TestJavacTaskScanner test) {
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super(context);
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this.test = test;
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}
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@Override
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public Scanner newScanner(CharSequence input, boolean keepDocComments) {
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if (input instanceof CharBuffer) {
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return new MyScanner(this, (CharBuffer)input, test);
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} else {
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char[] array = input.toString().toCharArray();
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return newScanner(array, array.length, keepDocComments);
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}
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}
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@Override
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public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) {
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return new MyScanner(this, input, inputLength, test);
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}
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private TestJavacTaskScanner test;
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}
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protected MyScanner(ScannerFactory fac, CharBuffer buffer, TestJavacTaskScanner test) {
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super(fac, buffer);
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this.test = test;
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}
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protected MyScanner(ScannerFactory fac, char[] input, int inputLength, TestJavacTaskScanner test) {
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super(fac, input, inputLength);
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this.test = test;
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}
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public void nextToken() {
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super.nextToken();
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Token tk = token();
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System.err.format("Saw token %s %n", tk.kind);
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test.numTokens++;
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}
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private TestJavacTaskScanner test;
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}
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