Examples with PackageElement javax.lang.model.element.PackageElement used on opensource projects

Example 51 with PackageElement

use of javax.lang.model.element.PackageElement in project ceylon-compiler by ceylon.

the class Main method main.

public static void main(String[] args) throws Exception {
    JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
    StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
    fm.setLocation(CLASS_PATH, Collections.<File>emptyList());
    JavacTask javac = (JavacTask) tool.getTask(null, fm, null, null, null, null);
    Elements elements = javac.getElements();
    final Set<String> packages = new LinkedHashSet<String>();
    int nestedClasses = 0;
    int classes = 0;
    for (JavaFileObject file : fm.list(PLATFORM_CLASS_PATH, "", EnumSet.of(CLASS), true)) {
        String type = fm.inferBinaryName(PLATFORM_CLASS_PATH, file);
        if (type.endsWith("package-info"))
            continue;
        try {
            TypeElement elem = elements.getTypeElement(type);
            if (elem == null && type.indexOf('$') > 0) {
                nestedClasses++;
                type = null;
                continue;
            }
            classes++;
            packages.add(getPackage(elem).getQualifiedName().toString());
            // force completion
            elements.getTypeElement(type).getKind();
            type = null;
        } finally {
            if (type != null)
                System.err.println("Looking at " + type);
        }
    }
    javac = null;
    elements = null;
    javac = (JavacTask) tool.getTask(null, fm, null, null, null, null);
    elements = javac.getElements();
    for (String name : packages) {
        PackageElement pe = elements.getPackageElement(name);
        for (Element e : pe.getEnclosedElements()) {
            e.getSimpleName().getClass();
        }
    }
    /*
         * A few sanity checks based on current values:
         *
         * packages: 775, classes: 12429 + 5917
         *
         * As the platform evolves the numbers are likely to grow
         * monotonically but in case somebody gets a clever idea for
         * limiting the number of packages exposed, this number might
         * drop.  So we test low values.
         */
    System.out.format("packages: %s, classes: %s + %s%n", packages.size(), classes, nestedClasses);
    if (classes < 9000)
        throw new AssertionError("Too few classes in PLATFORM_CLASS_PATH ;-)");
    if (packages.size() < 530)
        throw new AssertionError("Too few packages in PLATFORM_CLASS_PATH ;-)");
    if (nestedClasses < 3000)
        throw new AssertionError("Too few nested classes in PLATFORM_CLASS_PATH ;-)");
}

Example 52 with PackageElement

use of javax.lang.model.element.PackageElement in project gradle by gradle.

the class ConstantsTreeVisitor method visitCompilationUnit.

@Override
public ConstantsVisitorContext visitCompilationUnit(CompilationUnitTree node, ConstantsVisitorContext context) {
    // For JDK8 visitPackage is not called for package-info.java, so we have to resolve package-info from compilation unit
    String sourceName = node.getSourceFile().getName();
    if (sourceName.endsWith(PACKAGE_INFO_JAVA)) {
        PackageElement packageElement = elements.getPackageOf(trees.getElement(getCurrentPath()));
        String visitedPackageInfo = packageElement == null || packageElement.getQualifiedName().toString().isEmpty() ? PACKAGE_INFO : packageElement.getQualifiedName().toString() + "." + PACKAGE_INFO;
        return super.visitCompilationUnit(node, new ConstantsVisitorContext(visitedPackageInfo, consumer::consumeAccessibleDependent));
    }
    return super.visitCompilationUnit(node, context);
}

Example 53 with PackageElement

use of javax.lang.model.element.PackageElement in project gradle by gradle.

the class ElementUtils method getTopLevelTypeName.

public static String getTopLevelTypeName(Element originatingElement) {
    Element current = originatingElement;
    Element parent = originatingElement;
    while (parent != null && !(parent instanceof PackageElement)) {
        current = parent;
        parent = current.getEnclosingElement();
    }
    String name = getElementName(current);
    if (name != null) {
        return name;
    }
    throw new IllegalArgumentException("Unexpected element " + originatingElement);
}

Example 54 with PackageElement

use of javax.lang.model.element.PackageElement in project classindex by atteo.

the class ClassIndexProcessor method process.

@Override
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
    try {
        for (Element element : roundEnv.getRootElements()) {
            if (!(element instanceof TypeElement)) {
                continue;
            }
            final PackageElement packageElement = getPackage(element);
            element.accept(new ElementScanner6<Void, Void>() {

                @Override
                public Void visitType(TypeElement typeElement, Void o) {
                    try {
                        for (AnnotationMirror mirror : typeElement.getAnnotationMirrors()) {
                            storeRepeatableAnnotation(mirror, typeElement);
                            final TypeElement annotationElement = (TypeElement) mirror.getAnnotationType().asElement();
                            storeAnnotation(annotationElement, typeElement);
                        }
                        indexSupertypes(typeElement, typeElement);
                        if (packageElement != null) {
                            storeClassFromPackage(packageElement, typeElement);
                        }
                    } catch (IOException e) {
                        messager.printMessage(Diagnostic.Kind.ERROR, "[ClassIndexProcessor] " + e.getMessage());
                    }
                    if (typeElement.getKind().toString().equals("RECORD")) {
                        return null;
                    }
                    return super.visitType(typeElement, o);
                }
            }, null);
        }
        if (!roundEnv.processingOver()) {
            return false;
        }
        writeIndexFiles(ClassIndex.SUBCLASS_INDEX_PREFIX, subclassMap);
        writeIndexFiles(ClassIndex.ANNOTATED_INDEX_PREFIX, annotatedMap);
        for (Map.Entry<String, Set<String>> entry : packageMap.entrySet()) {
            writeSimpleNameIndexFile(entry.getValue(), entry.getKey().replace(".", "/") + "/" + ClassIndex.PACKAGE_INDEX_NAME);
        }
    } catch (IOException e) {
        messager.printMessage(Diagnostic.Kind.ERROR, "[ClassIndexProcessor] Can't write index file: " + e.getMessage());
    } catch (Throwable e) {
        e.printStackTrace();
        messager.printMessage(Diagnostic.Kind.ERROR, "[ClassIndexProcessor] Internal error: " + e.getMessage());
    }
    return false;
}

Example 55 with PackageElement

use of javax.lang.model.element.PackageElement in project checker-framework by typetools.

the class ElementUtils method enclosingPackage.

/**
 * Returns the innermost package element enclosing the given element. The same effect as {@link
 * javax.lang.model.util.Elements#getPackageOf(Element)}. Returns the element itself if it is a
 * package.
 *
 * @param elem the enclosed element of a package
 * @return the innermost package element
 */
public static PackageElement enclosingPackage(final Element elem) {
    Element result = elem;
    while (result != null && result.getKind() != ElementKind.PACKAGE) {
        @Nullable Element encl = result.getEnclosingElement();
        result = encl;
    }
    return (PackageElement) result;
}