com.sun.source.doctree.DocTree Java Examples

public Iterator<DocTree> iterator() {
    return new Iterator<DocTree>() {
        public boolean hasNext() {
            return next != null;
        }

        public DocTree next() {
            DocTree t = next.leaf;
            next = next.parent;
            return t;
        }

        public void remove() {
            throw new UnsupportedOperationException();
        }

        private DocTreePath next = DocTreePath.this;
    };
}
 

void checkReference(ReferenceTree tree, List<? extends DocTree> label) {
    String sig = tree.getSignature();

    Element found = trees.getElement(new DocTreePath(getCurrentPath(), tree));
    if (found == null) {
        System.err.println(sig + " NOT FOUND");
    } else {
        System.err.println(sig + " found " + found.getKind() + " " + found);
    }

    String expect = "UNKNOWN";
    if (label.size() > 0 && label.get(0) instanceof TextTree)
        expect = ((TextTree) label.get(0)).getBody();

    if (!expect.equalsIgnoreCase(found == null ? "bad" : found.getKind().name())) {
        error(tree, "Unexpected value found: " + found +", expected: " + expect);
    }
}
 

@Override
public String toString(List<? extends DocTree> tags, Element element) {
    if (!enableModuleGraph) {
        return "";
    }

    String moduleName = ((ModuleElement) element).getQualifiedName().toString();
    String imageFile = moduleName + "-graph.png";
    int thumbnailHeight = -1;
    String hoverImage = "";
    if (!moduleName.equals("java.base")) {
        thumbnailHeight = 100; // also appears in the stylesheet
        hoverImage = "<span>"
            + getImage(moduleName, imageFile, -1, true)
            + "</span>";
    }
    return "<dt>"
        + "<span class=\"simpleTagLabel\">Module Graph:</span>\n"
        + "</dt>"
        + "<dd>"
        + "<a class=moduleGraph href=\"" + imageFile + "\">"
        + getImage(moduleName, imageFile, thumbnailHeight, false)
        + hoverImage
        + "</a>"
        + "</dd>";
}
 

public Iterator<DocTree> iterator() {
    return new Iterator<DocTree>() {
        public boolean hasNext() {
            return next != null;
        }

        public DocTree next() {
            DocTree t = next.leaf;
            next = next.parent;
            return t;
        }

        public void remove() {
            throw new UnsupportedOperationException();
        }

        private DocTreePath next = DocTreePath.this;
    };
}
 

public Iterator<DocTree> iterator() {
    return new Iterator<DocTree>() {
        public boolean hasNext() {
            return next != null;
        }

        public DocTree next() {
            DocTree t = next.leaf;
            next = next.parent;
            return t;
        }

        public void remove() {
            throw new UnsupportedOperationException();
        }

        private DocTreePath next = DocTreePath.this;
    };
}
 

protected void report(Group group, Diagnostic.Kind dkind, DocTree tree, String code, Object... args) {
    if (options.isEnabled(group, env.currAccess)) {
        String msg = (code == null) ? (String) args[0] : localize(code, args);
        env.trees.printMessage(dkind, msg, tree,
                env.currDocComment, env.currPath.getCompilationUnit());

        stats.record(group, dkind, code);
    }
}
 

@Override @DefinedBy(Api.COMPILER_TREE)
public void printMessage(Diagnostic.Kind kind, CharSequence msg,
        com.sun.source.doctree.DocTree t,
        com.sun.source.doctree.DocCommentTree c,
        com.sun.source.tree.CompilationUnitTree root) {
    printMessage(kind, msg, ((DCTree) t).pos((DCDocComment) c), root);
}
 

/**
 * {@inheritDoc}
 */
public Content getTagletOutput(Element holder, TagletWriter writer) {
    Content output = writer.getOutputInstance();
    Utils utils = writer.configuration().utils;
    List<? extends DocTree> tags = utils.getBlockTags(holder, getName());
    if (!tags.isEmpty()) {
        String tagString = userTaglet.toString(tags, holder);
        if (tagString != null) {
            output.addContent(new RawHtml(tagString));
        }
    }
    return output;
}
 

/**
 * {@inheritDoc}
 */
public Content propertyTagOutput(Element element, DocTree tag, String prefix) {
    Content body = new ContentBuilder();
    CommentHelper ch = utils.getCommentHelper(element);
    body.addContent(new RawHtml(prefix));
    body.addContent(" ");
    body.addContent(HtmlTree.CODE(new RawHtml(ch.getText(tag))));
    body.addContent(".");
    Content result = HtmlTree.P(body);
    return result;
}
 

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 DocTreeNode(CompilationInfo info, TreePath declaration, DocCommentTree docComment, DocTree tree) {
    super(new NodeChilren(children(info, declaration, docComment, tree)));
    this.info = info;
    this.docComment = docComment;
    this.tree = tree;
    setDisplayName(tree.getKind() + ":" + tree.toString());
}
 

public TypeElement getReferencedClass(Configuration c, DocTree dtree) {
    Element e = getReferencedElement(c, dtree);
    if (e == null) {
        return null;
    } else if (c.utils.isTypeElement(e)) {
        return (TypeElement) e;
    } else if (!c.utils.isPackage(e)) {
        return c.utils.getEnclosingTypeElement(e);
    }
    return null;
}
 

@Override
public Void visitSee(SeeTree tree, Void ignore) {
    List<? extends DocTree> refLabel = tree.getReference();
    if (refLabel.size() > 1 && (refLabel.get(0) instanceof ReferenceTree)) {
        ReferenceTree ref = (ReferenceTree) refLabel.get(0);
        List<? extends DocTree> label = refLabel.subList(1, refLabel.size());
        checkReference(ref, label);
    }
    return null;
}
 

void checkAllowsText(DocTree tree) {
    TagStackItem top = tagStack.peek();
    if (top != null
            && top.tree.getKind() == DocTree.Kind.START_ELEMENT
            && !top.tag.acceptsText()) {
        if (top.flags.add(Flag.REPORTED_BAD_INLINE)) {
            env.messages.error(HTML, tree, "dc.text.not.allowed",
                    ((StartElementTree) top.tree).getName());
        }
    }
}
 

public ReferenceTree getType(DocTree dtree) {
    if (dtree.getKind() == SERIAL_FIELD) {
        return ((SerialFieldTree)dtree).getType();
    } else {
        return null;
    }
}
 

protected final UnknownInlineTagTree rewriteChildren(UnknownInlineTagTree tree) {
    UnknownInlineTagTree value = tree;
    List<? extends DocTree> content = translateDoc(tree.getContent());
    if (content != tree.getContent()) {
        value = make.UnknownInlineTag(((DCTree.DCUnknownInlineTag) tree).name, tree.getContent());
    }
    return value;
}
 

void warnIfEmpty(DocTree tree, List<? extends DocTree> list) {
    for (DocTree d: list) {
        switch (d.getKind()) {
            case TEXT:
                if (hasNonWhitespace((TextTree) d))
                    return;
                break;
            default:
                return;
        }
    }
    env.messages.warning(SYNTAX, tree, "dc.empty", tree.getKind().tagName);
}
 

/**
 * Tests getting a DocCommentTree from an element, as well
 * as test if break iterator setter/getter works correctly.
 *
 * @param javaFileName a test file to be processed
 * @param expected the expected output
 * @throws java.io.IOException
 */
public void runElementAndBreakIteratorTests(String javaFileName, String expected) throws IOException {
    List<File> javaFiles = new ArrayList<>();
    javaFiles.add(new File(testSrc, javaFileName));

    List<File> dirs = new ArrayList<>();
    dirs.add(new File(testSrc));

    try (StandardJavaFileManager fm = javac.getStandardFileManager(null, null, null)) {
        fm.setLocation(javax.tools.StandardLocation.SOURCE_PATH, dirs);
        Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjectsFromFiles(javaFiles);

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

        Iterable<? extends Element> elements = t.analyze();

        Element klass = elements.iterator().next();
        DocCommentTree dcTree = trees.getDocCommentTree(klass);

        List<? extends DocTree> firstSentence = dcTree.getFirstSentence();
        StringWriter sw = new StringWriter();
        DocPretty pretty = new DocPretty(sw);
        pretty.print(firstSentence);
        check("getDocCommentTree(Element)", expected, sw.toString());

        BreakIterator bi = BreakIterator.getSentenceInstance(Locale.FRENCH);
        trees.setBreakIterator(bi);
        BreakIterator nbi = trees.getBreakIterator();
        if (bi.equals(nbi)) {
            pass++;
            check("getDocCommentTree(Element) with BreakIterator", expected, sw.toString());
        } else {
            fail++;
            System.err.println("BreakIterators don't match");
        }
    }
}
 

public List<? extends DocTree> getBlockTags(Element element, String tagName) {
    DocTree.Kind kind = null;
    switch (tagName) {
        case "author":
        case "deprecated":
        case "hidden":
        case "param":
        case "return":
        case "see":
        case "serial":
        case "since":
        case "throws":
        case "exception":
        case "version":
            kind = DocTree.Kind.valueOf(tagName.toUpperCase());
            return getBlockTags(element, kind);
        case "serialData":
            kind = SERIAL_DATA;
            return getBlockTags(element, kind);
        case "serialField":
            kind = SERIAL_FIELD;
            return getBlockTags(element, kind);
        default:
            kind = DocTree.Kind.UNKNOWN_BLOCK_TAG;
            break;
    }
    List<? extends DocTree> blockTags = getBlockTags(element, kind);
    List<DocTree> out = new ArrayList<>();
    String tname = tagName.startsWith("@") ? tagName.substring(1) : tagName;
    CommentHelper ch = getCommentHelper(element);
    for (DocTree dt : blockTags) {
        if (ch.getTagName(dt).equals(tname)) {
            out.add(dt);
        }
    }
    return out;
}
 

@Override
public Void visitLiteral(LiteralTree tree, Void ignore) {
    markEnclosingTag(Flag.HAS_INLINE_TAG);
    if (tree.getKind() == DocTree.Kind.CODE) {
        for (TagStackItem tsi: tagStack) {
            if (tsi.tag == HtmlTag.CODE) {
                env.messages.warning(HTML, tree, "dc.tag.code.within.code");
                break;
            }
        }
    }
    return super.visitLiteral(tree, ignore);
}
 

@Override @DefinedBy(Api.COMPILER_TREE)
public Void visitLiteral(LiteralTree tree, Void ignore) {
    markEnclosingTag(Flag.HAS_INLINE_TAG);
    if (tree.getKind() == DocTree.Kind.CODE) {
        for (TagStackItem tsi: tagStack) {
            if (tsi.tag == HtmlTag.CODE) {
                env.messages.warning(HTML, tree, "dc.tag.code.within.code");
                break;
            }
        }
    }
    return super.visitLiteral(tree, ignore);
}
 

private DocTree getLastChild(DocTree tree) {
    final DocTree[] last = new DocTree[] {null};

    tree.accept(new DocTreeScanner<Void, Void>() {
        @Override @DefinedBy(Api.COMPILER_TREE)
        public Void scan(DocTree node, Void p) {
            if (node != null) last[0] = node;
            return null;
        }
    }, null);

    return last[0];
}
 

@Override @DefinedBy(Api.COMPILER_TREE)
public DCThrows newExceptionTree(ReferenceTree name, List<? extends DocTree> description) {
    // TODO: verify the reference is just to a type (not a field or method)
    DCThrows tree = new DCThrows(Kind.EXCEPTION, (DCReference) name, cast(description));
    tree.pos = pos;
    return tree;
}
 

protected void report(Group group, Diagnostic.Kind dkind, DocTree tree, String code, Object... args) {
    if (options.isEnabled(group, env.currAccess)) {
        String msg = (code == null) ? (String) args[0] : localize(code, args);
        env.trees.printMessage(dkind, msg, tree,
                env.currDocComment, env.currPath.getCompilationUnit());

        stats.record(group, dkind, code);
    }
}
 

@Override @DefinedBy(Api.COMPILER_TREE)
public Void visitLink(LinkTree tree, Void ignore) {
    markEnclosingTag(Flag.HAS_INLINE_TAG);
    // simulate inline context on tag stack
    HtmlTag t = (tree.getKind() == DocTree.Kind.LINK)
            ? HtmlTag.CODE : HtmlTag.SPAN;
    tagStack.push(new TagStackItem(tree, t));
    try {
        return super.visitLink(tree, ignore);
    } finally {
        tagStack.pop();
    }
}
 

@Override
public Void visitVersion(VersionTree node, Void p) {
    printTagName(node);
    print(" ");
    for (DocTree docTree : node.getBody()) {
        doAccept((DCTree)docTree);
    }
    return null;
}
 

@Override
public DocTree visitValue(ValueTree node, Element p) {
    return instance.visitValue(node, p);
}
 

public boolean isEntity(DocTree doctree) {
    return isKind(doctree, ENTITY);
}
 

@Override
public DocTree visitSee(SeeTree node, Element p) {
    return instance.visitSee(node, p);
}
 

public boolean isLiteral(DocTree doctree) {
    return isKind(doctree, LITERAL);
}