Java Code Examples for com.sun.tools.javac.api.JavacTool#create()

/**
 * method-run.
 */
void run() throws Exception {
    File testSrc = new File(System.getProperty("test.src"));
    File file = new File(testSrc, "TestDocComments.java");

    JavacTool tool = JavacTool.create();
    StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);

    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw);
    Iterable<? extends JavaFileObject> fileObjects = fm.getJavaFileObjects(file);
    JavacTask task = tool.getTask(pw, fm, null, null, null, fileObjects);
    Iterable<? extends CompilationUnitTree> units = task.parse();
    Trees trees = Trees.instance(task);

    CommentScanner s = new CommentScanner();
    int n = s.scan(units, trees);

    if (n != 12)
        error("Unexpected number of doc comments found: " + n);

    if (errors > 0)
        throw new Exception(errors + " errors occurred");
}
 

/** Combo test to run all test cases in all modes. */
void run() throws Exception {
    javac = JavacTool.create();
    fm = javac.getStandardFileManager(null, null, null);

    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");
}
 

public static void main(String[] args) throws Exception {
    PrintWriter out = new PrintWriter(System.out, true);
    JavacTool tool = JavacTool.create();
    StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
    File testSrc = new File(System.getProperty("test.src"));
    Iterable<? extends JavaFileObject> f =
        fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrc, "ArrayCreationTree.java")));
    JavacTask task = tool.getTask(out, fm, null, null, null, f);
    Iterable<? extends CompilationUnitTree> trees = task.parse();
    out.flush();

    Scanner s = new Scanner();
    for (CompilationUnitTree t: trees)
        s.scan(t, null);

}
 

public static void main(String[] args) throws IOException {
    JavacTool tool = JavacTool.create();

    StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
    Iterable<? extends JavaFileObject> files =
        fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrcDir, self + ".java")));

    Iterable<String> options = Arrays.asList("-processorpath", testClassDir,
                                             "-processor", self,
                                             "-s", ".",
                                             "-d", ".");
    JavacTask task = tool.getTask(out, fm, null, options, null, files);

    VerifyingTaskListener vtl = new VerifyingTaskListener(new File(testSrcDir, self + ".out"));
    task.setTaskListener(vtl);

    if (!task.call())
        throw new AssertionError("compilation failed");

    if (vtl.iter.hasNext() || vtl.errors)
        throw new AssertionError("comparison against golden file failed.");
}
 

public static void main(String[] args) throws IOException {
    JavacTool tool = JavacTool.create();

    StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
    Iterable<? extends JavaFileObject> files =
        fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrcDir, self + ".java")));

    Iterable<String> options = Arrays.asList("-processorpath", testClassDir,
                                             "-processor", self,
                                             "-s", ".",
                                             "-d", ".");
    JavacTask task = tool.getTask(out, fm, null, options, null, files);

    VerifyingTaskListener vtl = new VerifyingTaskListener(new File(testSrcDir, self + ".out"));
    task.setTaskListener(vtl);

    if (!task.call())
        throw new AssertionError("compilation failed");

    if (vtl.iter.hasNext() || vtl.errors)
        throw new AssertionError("comparison against golden file failed.");
}
 

/**
 * Read a file.
 * @param file the file to be read
 * @return the tree for the content of the file
 * @throws IOException if any IO errors occur
 * @throws TreePosTest.ParseException if any errors occur while parsing the file
 */
JCCompilationUnit read(File file) throws IOException, ParseException {
    JavacTool tool = JavacTool.create();
    r.errors = 0;
    Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(file);
    JavacTask task = tool.getTask(pw, fm, r, Collections.<String>emptyList(), null, files);
    Iterable<? extends CompilationUnitTree> trees = task.parse();
    pw.flush();
    if (r.errors > 0)
        throw new ParseException(sw.toString());
    Iterator<? extends CompilationUnitTree> iter = trees.iterator();
    if (!iter.hasNext())
        throw new Error("no trees found");
    JCCompilationUnit t = (JCCompilationUnit) iter.next();
    if (iter.hasNext())
        throw new Error("too many trees found");
    return t;
}
 

void run() throws Exception {
    File testSrc = new File(System.getProperty("test.src"));

    JavacTool tool = JavacTool.create();
    try (StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null)) {

        File f = new File(testSrc, T6993305.class.getSimpleName() + ".java");
        Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjects(f);
        JavacTask task = tool.getTask(null, fm, null, null, null, fos);
        Iterable<? extends CompilationUnitTree> cus = task.parse();

        TestScanner s = new TestScanner();
        s.scan(cus, task);

        if (errors > 0)
            throw new Exception(errors + " errors occurred");
    }
}
 

/**
 * Read a file.
 * @param file the file to be read
 * @return the tree for the content of the file
 * @throws IOException if any IO errors occur
 * @throws TreePosTest.ParseException if any errors occur while parsing the file
 */
JCCompilationUnit read(File file) throws IOException, ParseException {
    JavacTool tool = JavacTool.create();
    r.errors = 0;
    Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(file);
    JavacTask task = tool.getTask(pw, fm, r, Collections.<String>emptyList(), null, files);
    Iterable<? extends CompilationUnitTree> trees = task.parse();
    pw.flush();
    if (r.errors > 0)
        throw new ParseException(sw.toString());
    Iterator<? extends CompilationUnitTree> iter = trees.iterator();
    if (!iter.hasNext())
        throw new Error("no trees found");
    JCCompilationUnit t = (JCCompilationUnit) iter.next();
    if (iter.hasNext())
        throw new Error("too many trees found");
    return t;
}
 

/** Combo test to run all test cases in all modes. */
void run() throws Exception {
    javac = JavacTool.create();
    fm = javac.getStandardFileManager(null, null, null);

    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");
}
 

void run() throws Exception {
    List<File> files = new ArrayList<File>();
    File testSrc = new File(System.getProperty("test.src"));
    for (File f: testSrc.listFiles()) {
        if (f.isFile() && f.getName().endsWith(".java"))
            files.add(f);
    }

    JavacTool javac = JavacTool.create();
    StandardJavaFileManager fm = javac.getStandardFileManager(null, null, null);

    Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjectsFromFiles(files);

    JavacTask t = javac.getTask(null, fm, null, null, null, fos);
    DocTrees trees = DocTrees.instance(t);

    Iterable<? extends CompilationUnitTree> units = t.parse();

    DeclScanner ds = new DeclScanner(trees);
    for (CompilationUnitTree unit: units) {
        ds.scan(unit, null);
    }

    if (errors > 0)
        throw new Exception(errors + " errors occurred");
}
 

/**
 * Read a file.
 * @param file the file to be read
 * @return the tree for the content of the file
 * @throws IOException if any IO errors occur
 * @throws TreePosTest.ParseException if any errors occur while parsing the file
 */
JCCompilationUnit read(File file) throws IOException, ParseException {
    JavacTool tool = JavacTool.create();
    r.errors = 0;
    Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(file);
    JavacTask task = tool.getTask(pw, fm, r, Collections.<String>emptyList(), null, files);
    Iterable<? extends CompilationUnitTree> trees = task.parse();
    pw.flush();
    if (r.errors > 0)
        throw new ParseException(sw.toString());
    Iterator<? extends CompilationUnitTree> iter = trees.iterator();
    if (!iter.hasNext())
        throw new Error("no trees found");
    JCCompilationUnit t = (JCCompilationUnit) iter.next();
    if (iter.hasNext())
        throw new Error("too many trees found");
    return t;
}
 

/**
 * Read a file.
 * @param file the file to be read
 * @return the tree for the content of the file
 * @throws IOException if any IO errors occur
 * @throws TreePosTest.ParseException if any errors occur while parsing the file
 */
JCCompilationUnit read(File file) throws IOException, ParseException {
    JavacTool tool = JavacTool.create();
    r.errors = 0;
    Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(file);
    JavacTask task = tool.getTask(pw, fm, r, Collections.<String>emptyList(), null, files);
    Iterable<? extends CompilationUnitTree> trees = task.parse();
    pw.flush();
    if (r.errors > 0)
        throw new ParseException(sw.toString());
    Iterator<? extends CompilationUnitTree> iter = trees.iterator();
    if (!iter.hasNext())
        throw new Error("no trees found");
    JCCompilationUnit t = (JCCompilationUnit) iter.next();
    if (iter.hasNext())
        throw new Error("too many trees found");
    return t;
}
 

static void testAnnotationProcessing(JavacFileManager fm, List<JavaFileObject> files) throws Throwable {
    Context context = new Context();

    String[] args = {
            "-XprintRounds",
            "-processorpath", testClasses,
            "-processor", self,
            "-d", "."
    };

    JavacTool tool = JavacTool.create();
    JavacTask task = tool.getTask(null, fm, null, List.from(args), null, files, context);
    // no need in this simple case to call task.prepareCompiler(false)

    JavaCompiler compiler = JavaCompiler.instance(context);
    compiler.compile(files);
    try {
        compiler.compile(files);
        throw new Error("Error: AssertionError not thrown after second call of compile");
    } catch (AssertionError e) {
        System.err.println("Exception from compiler (expected): " + e);
    }
}
 

void run() throws IOException {

        JavacTool tool = JavacTool.create();

        DiagnosticListener<JavaFileObject> dl = new DiagnosticListener<JavaFileObject>() {
                public void report(Diagnostic d) {
                    error(d.toString());
                }
            };

        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("-d", ".");

        System.err.println("simple compilation, no processing");
        JavacTask task = tool.getTask(out, fm, dl, opts, null, files);
        task.setTaskListener(new MyTaskListener(task));
        if (!task.call())
            throw new AssertionError("compilation failed");

        opts =  Arrays.asList("-d", ".", "-processorpath", testClassDir, "-processor", self);

        System.err.println();
        System.err.println("compilation with processing");
        task = 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");
    }
 

public boolean run(String sourcepath, File outdir, List<String> classes) {
    //System.err.println("run: sourcepath:" + sourcepath + " outdir:" + outdir + " classes:" + classes);
    if (sourcepath == null)
        throw new IllegalArgumentException("sourcepath not set");
    if (outdir == null)
        throw new IllegalArgumentException("source output dir not set");

    JavacTool tool = JavacTool.create();
    StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);

    try {
        fm.setLocation(StandardLocation.SOURCE_OUTPUT, Collections.singleton(outdir));
        fm.setLocation(StandardLocation.SOURCE_PATH, splitPath(sourcepath));
        List<JavaFileObject> files = new ArrayList<JavaFileObject>();
        for (String c: classes) {
            JavaFileObject fo = fm.getJavaFileForInput(
                    StandardLocation.SOURCE_PATH, c, JavaFileObject.Kind.SOURCE);
            if (fo == null)
                error("class not found: " + c);
            else
                files.add(fo);
        }

        JavacTask t = tool.getTask(null, fm, null, null, null, files);
        Iterable<? extends CompilationUnitTree> trees = t.parse();
        for (CompilationUnitTree tree: trees) {
            makeStub(fm, tree);
        }
    } catch (IOException e) {
        error("IO error " + e, e);
    }

    return (errors == 0);
}
 

/** Doc comment: run */
void run() throws Exception {
    File testSrc = new File(System.getProperty("test.src"));
    File thisFile = new File(testSrc, getClass().getName() + ".java");
    JavacTool javac = JavacTool.create();
    StandardJavaFileManager fm = javac.getStandardFileManager(null, null, null);
    fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(new File(".")));
    Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjects(thisFile);
    testAnnoProcessor(javac, fm, fos, out, EXPECT_DOC_COMMENTS);
    testTaskListener(javac, fm, fos, out, EXPECT_DOC_COMMENTS);

    if (errors > 0)
        throw new Exception(errors + " errors occurred");
}
 

public static void main(String[] args) throws Exception {
    String srcDir = System.getProperty("test.src", ".");
    String self = T6397044.class.getName();
    JavacTool tool = JavacTool.create();
    StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
    Iterable<? extends JavaFileObject> files
        = fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(srcDir, self + ".java")));
    JavacTask task = tool.getTask(null, fm, null, null, null, files);
    Iterable<? extends CompilationUnitTree> trees = task.parse();
    Checker checker = new Checker();
    for (CompilationUnitTree tree: trees)
        checker.check(tree);
}
 

void testInit(boolean expectOK, String[] args, List<? extends JavaFileObject> files) {
    JavacTool javac = JavacTool.create();
    JavacTask task = javac.getTask(null, null, null, null, null, files);
    try {
        DocLint dl = new DocLint();
        dl.init(task, args, true);
        if (!expectOK)
            error("expected IllegalArgumentException not thrown");
        task.call();
    } catch (IllegalArgumentException e) {
        System.err.println(e);
        if (expectOK)
            error("unexpected IllegalArgumentException caught");
    }
}
 

void run() throws Exception {
    List<File> files = new ArrayList<File>();
    File testSrc = new File(System.getProperty("test.src"));
    for (File f: testSrc.listFiles()) {
        if (f.isFile() && f.getName().endsWith(".java"))
            files.add(f);
    }

    JavacTool javac = JavacTool.create();
    StandardJavaFileManager fm = javac.getStandardFileManager(null, null, null);

    Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjectsFromFiles(files);

    JavacTask t = javac.getTask(null, fm, null, null, null, fos);
    DocTrees trees = DocTrees.instance(t);

    Iterable<? extends CompilationUnitTree> units = t.parse();

    Set<DocTree.Kind> found = EnumSet.noneOf(DocTree.Kind.class);
    DeclScanner ds = new DeclScanner(trees, found);
    for (CompilationUnitTree unit: units) {
        ds.scan(unit, null);
    }

    for (DocTree.Kind k: DocTree.Kind.values()) {
        if (!found.contains(k) && k != DocTree.Kind.OTHER)
            error("not found: " + k);
    }

    if (errors > 0)
        throw new Exception(errors + " errors occurred");
}
 

public static void test(NoYes secMgr, NoGoodBad config, NoYes proc) throws IOException {
    if (verbose)
        System.err.println("secMgr:" + secMgr + " config:" + config + " proc:" + proc);

    if (secMgr == NoYes.YES && System.getSecurityManager() == null)
        System.setSecurityManager(new NoLoaderSecurityManager());

    installConfigFile(config);

    processed.delete();

    List<String> args = new ArrayList<String>();
    //args.add("-XprintRounds");
    if (proc == NoYes.YES) {
        args.add("-processor");
        args.add(myName);
    }
    args.add("-processorpath");
    args.add(System.getProperty("java.class.path"));
    args.add("-d");
    args.add(".");

    JavacTool t = JavacTool.create(); // avoid using class loader

    MyDiagListener dl = new MyDiagListener();
    PrintWriter out = new PrintWriter(System.err, true);
    StandardJavaFileManager fm = t.getStandardFileManager(dl, null, null);
    File file = new File(System.getProperty("test.src"), myName+".java");
    Iterable<? extends JavaFileObject> files =
        fm.getJavaFileObjectsFromFiles(Arrays.asList(file));
    boolean ok = t.getTask(out, null, dl, args, null, files).call();

    if (config == NoGoodBad.GOOD || proc == NoYes.YES) {
        if (secMgr == NoYes.YES) {
            if (dl.last == null)
                throw new AssertionError("Security manager installed, and processors present, "
                                         + " but no diagnostic received");
        }
        else {
            if (!processed.exists())
                throw new AssertionError("No security manager installed, and processors present, "
                                         + " but no processing occurred");
        }
    }
    else if (config == NoGoodBad.BAD) {
        // TODO: should verify that no compiler crash occurred
        // needs revised JSR199 spec
    }
    else {
        if (processed.exists())
            throw new AssertionError("No processors present, but processing occurred!");
    }

    if (verbose)
        System.err.println("OK");
}