| /* |
| * Copyright (c) 2012, 2018, 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 7150368 8003412 8000407 |
| * @summary javac should include basic ability to generate native headers |
| * @modules jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.file |
| */ |
| |
| import java.io.File; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.lang.annotation.Annotation; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.tools.StandardJavaFileManager; |
| import javax.tools.StandardLocation; |
| |
| import com.sun.source.util.JavacTask; |
| import com.sun.tools.javac.api.JavacTool; |
| |
| public class NativeHeaderTest { |
| public static void main(String... args) throws Exception { |
| new NativeHeaderTest().run(); |
| } |
| |
| /** How to invoke javac. */ |
| enum RunKind { |
| /** Use the command line entry point. */ |
| CMD, |
| /** Use the JavaCompiler API. */ |
| API |
| }; |
| |
| /** Which classes for which to generate headers. */ |
| enum GenKind { |
| /** Just classes with native methods or the marker annotation. */ |
| SIMPLE, |
| /** All appropriate classes within the top level class. */ |
| FULL |
| }; |
| |
| // ---------- Test cases, invoked reflectively via run. ---------- |
| |
| @Test |
| void simpleTest(RunKind rk, GenKind gk) throws Exception { |
| List<File> files = new ArrayList<File>(); |
| files.add(createFile("p/C.java", |
| "class C { native void m(); }")); |
| |
| Set<String> expect = createSet("C.h"); |
| |
| test(rk, gk, files, expect); |
| } |
| |
| @Test |
| void nestedClassTest(RunKind rk, GenKind gk) throws Exception { |
| List<File> files = new ArrayList<File>(); |
| files.add(createFile("p/C.java", |
| "class C { static class Inner { native void m(); } }")); |
| |
| Set<String> expect = createSet("C_Inner.h"); |
| if (gk == GenKind.FULL) expect.add("C.h"); |
| |
| test(rk, gk, files, expect); |
| } |
| |
| @Test |
| void localClassTest(RunKind rk, GenKind gk) throws Exception { |
| List<File> files = new ArrayList<File>(); |
| files.add(createFile("p/C.java", |
| "class C { native void m(); void m2() { class Local { } } }")); |
| |
| Set<String> expect = createSet("C.h"); |
| |
| test(rk, gk, files, expect); |
| } |
| |
| @Test |
| void syntheticClassTest(RunKind rk, GenKind gk) throws Exception { |
| List<File> files = new ArrayList<File>(); |
| files.add(createFile("p/C.java", |
| "class C {\n" |
| + " private C() { }\n" |
| + " class Inner extends C { native void m(); }\n" |
| + "}")); |
| |
| Set<String> expect = createSet("C_Inner.h"); |
| if (gk == GenKind.FULL) expect.add("C.h"); |
| |
| test(rk, gk, files, expect); |
| |
| // double check the synthetic class was generated |
| checkEqual("generatedClasses", |
| createSet("C.class", "C$Inner.class"), |
| createSet(classesDir.list())); |
| } |
| |
| @Test |
| void annoTest(RunKind rk, GenKind gk) throws Exception { |
| List<File> files = new ArrayList<File>(); |
| files.add(createFile("p/C.java", |
| "class C { @java.lang.annotation.Native public static final int i = 1907; }")); |
| |
| Set<String> expect = createSet("C.h"); |
| |
| test(rk, gk, files, expect); |
| } |
| |
| @Test |
| void annoNestedClassTest(RunKind rk, GenKind gk) throws Exception { |
| List<File> files = new ArrayList<File>(); |
| files.add(createFile("p/C.java", |
| "class C { class Inner { @java.lang.annotation.Native public static final int i = 1907; } }")); |
| |
| Set<String> expect = createSet("C_Inner.h"); |
| if (gk == GenKind.FULL) expect.add("C.h"); |
| |
| test(rk, gk, files, expect); |
| } |
| |
| /** |
| * The worker method for each test case. |
| * Compile the files and verify that exactly the expected set of header files |
| * is generated. |
| */ |
| void test(RunKind rk, GenKind gk, List<File> files, Set<String> expect) throws Exception { |
| List<String> args = new ArrayList<String>(); |
| if (gk == GenKind.FULL) |
| args.add("-XDjavah:full"); |
| |
| switch (rk) { |
| case CMD: |
| args.add("-d"); |
| args.add(classesDir.getPath()); |
| args.add("-h"); |
| args.add(headersDir.getPath()); |
| for (File f: files) |
| args.add(f.getPath()); |
| int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()])); |
| if (rc != 0) |
| throw new Exception("compilation failed, rc=" + rc); |
| break; |
| |
| case API: |
| fm.setLocation(StandardLocation.SOURCE_PATH, Arrays.asList(srcDir)); |
| fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(classesDir)); |
| fm.setLocation(StandardLocation.NATIVE_HEADER_OUTPUT, Arrays.asList(headersDir)); |
| JavacTask task = javac.getTask(null, fm, null, args, null, |
| fm.getJavaFileObjectsFromFiles(files)); |
| if (!task.call()) |
| throw new Exception("compilation failed"); |
| break; |
| } |
| |
| Set<String> found = createSet(headersDir.list()); |
| checkEqual("header files", expect, found); |
| } |
| |
| /** Marker annotation for test cases. */ |
| @Retention(RetentionPolicy.RUNTIME) |
| @interface Test { } |
| |
| /** Combo test to run all test cases in all modes. */ |
| void run() throws Exception { |
| javac = JavacTool.create(); |
| fm = javac.getStandardFileManager(null, null, null); |
| try { |
| for (RunKind rk: RunKind.values()) { |
| for (GenKind gk: GenKind.values()) { |
| for (Method m: getClass().getDeclaredMethods()) { |
| Annotation a = m.getAnnotation(Test.class); |
| if (a != null) { |
| init(rk, gk, m.getName()); |
| try { |
| m.invoke(this, new Object[] { rk, gk }); |
| } catch (InvocationTargetException e) { |
| Throwable cause = e.getCause(); |
| throw (cause instanceof Exception) ? ((Exception) cause) : e; |
| } |
| System.err.println(); |
| } |
| } |
| } |
| } |
| System.err.println(testCount + " tests" + ((errorCount == 0) ? "" : ", " + errorCount + " errors")); |
| if (errorCount > 0) |
| throw new Exception(errorCount + " errors found"); |
| } finally { |
| fm.close(); |
| } |
| } |
| |
| /** |
| * Init directories for a test case. |
| */ |
| void init(RunKind rk, GenKind gk, String name) throws IOException { |
| System.err.println("Test " + rk + " " + gk + " " + name); |
| testCount++; |
| |
| testDir = new File(rk.toString().toLowerCase() + "_" + gk.toString().toLowerCase() + "-" + name); |
| srcDir = new File(testDir, "src"); |
| srcDir.mkdirs(); |
| classesDir = new File(testDir, "classes"); |
| classesDir.mkdirs(); |
| headersDir = new File(testDir, "headers"); |
| headersDir.mkdirs(); |
| } |
| |
| /** Create a source file with given body text. */ |
| File createFile(String path, final String body) throws IOException { |
| File f = new File(srcDir, path); |
| f.getParentFile().mkdirs(); |
| try (FileWriter out = new FileWriter(f)) { |
| out.write(body); |
| } |
| return f; |
| } |
| |
| /** Convenience method to create a set of items. */ |
| <T> Set<T> createSet(T... items) { |
| return new HashSet<T>(Arrays.asList(items)); |
| } |
| |
| /** Convenience method to check two values are equal, and report an error if not. */ |
| <T> void checkEqual(String label, T expect, T found) { |
| if ((found == null) ? (expect == null) : found.equals(expect)) |
| return; |
| System.err.println("Error: mismatch"); |
| System.err.println(" expected: " + expect); |
| System.err.println(" found: " + found); |
| errorCount++; |
| } |
| |
| // Shared across API test cases |
| JavacTool javac; |
| StandardJavaFileManager fm; |
| |
| // Directories set up by init |
| File testDir; |
| File srcDir; |
| File classesDir; |
| File headersDir; |
| |
| // Statistics |
| int testCount; |
| int errorCount; |
| } |
| |