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

Example 16 with Element

use of javax.lang.model.element.Element in project immutables by immutables.

the class SourceOrdering method getAllAccessorsProvider.

/**
   * While we have {@link SourceOrdering}, there's still a problem: We have inheritance hierarchy
   * and
   * we want to have all defined or inherited accessors returned as members of target type, like
   * {@link Elements#getAllMembers(TypeElement)}, but we need to have them properly and stably
   * sorted.
   * This implementation doesn't try to correctly resolve order for accessors inherited from
   * different supertypes(interfaces), just something that stable and reasonable wrt source ordering
   * without handling complex cases.
   * @param elements the elements utility
   * @param types the types utility
   * @param type the type to traverse
   * @return provider of all accessors in source order and mapping
   */
public static AccessorProvider getAllAccessorsProvider(final Elements elements, final Types types, final TypeElement type) {
    class CollectedOrdering extends Ordering<Element> {

        class Intratype {

            Ordering<String> ordering;

            int rank;
        }

        final Map<String, Intratype> accessorOrderings = Maps.newLinkedHashMap();

        final List<TypeElement> linearizedTypes = Lists.newArrayList();

        final Predicate<String> accessorNotYetInOrderings = Predicates.not(Predicates.in(accessorOrderings.keySet()));

        final ArrayListMultimap<String, TypeElement> accessorMapping = ArrayListMultimap.create();

        CollectedOrdering() {
            traverse(type);
            traverseObjectForInterface();
        }

        private void traverseObjectForInterface() {
            if (type.getKind() == ElementKind.INTERFACE) {
                traverse(elements.getTypeElement(Object.class.getName()));
            }
        }

        void traverse(@Nullable TypeElement element) {
            if (element == null || isJavaLangObject(element)) {
                return;
            }
            collectEnclosing(element);
            traverse(asTypeElement(element.getSuperclass()));
            for (TypeMirror implementedInterface : element.getInterfaces()) {
                traverse(asTypeElement(implementedInterface));
            }
        }

        @Nullable
        TypeElement asTypeElement(TypeMirror type) {
            if (type.getKind() == TypeKind.DECLARED) {
                return (TypeElement) ((DeclaredType) type).asElement();
            }
            return null;
        }

        void collectEnclosing(TypeElement type) {
            FluentIterable<String> accessorsInType = FluentIterable.from(SourceOrdering.getEnclosedElements(type)).filter(IsParameterlessNonstaticNonobject.PREDICATE).transform(ToSimpleName.FUNCTION);
            for (String accessor : accessorsInType) {
                accessorMapping.put(accessor, type);
            }
            List<String> accessors = accessorsInType.filter(accessorNotYetInOrderings).toList();
            Intratype intratype = new Intratype();
            intratype.rank = linearizedTypes.size();
            intratype.ordering = Ordering.explicit(accessors);
            for (String name : accessors) {
                accessorOrderings.put(name, intratype);
            }
            linearizedTypes.add(type);
        }

        @Override
        public int compare(Element left, Element right) {
            String leftKey = ToSimpleName.FUNCTION.apply(left);
            String rightKey = ToSimpleName.FUNCTION.apply(right);
            Intratype leftIntratype = accessorOrderings.get(leftKey);
            Intratype rightIntratype = accessorOrderings.get(rightKey);
            if (leftIntratype == null || rightIntratype == null) {
                // FIXME figure out why it happens (null)
                return Boolean.compare(leftIntratype == null, rightIntratype == null);
            }
            return leftIntratype == rightIntratype ? leftIntratype.ordering.compare(leftKey, rightKey) : Integer.compare(leftIntratype.rank, rightIntratype.rank);
        }
    }
    final CollectedOrdering ordering = new CollectedOrdering();
    final ImmutableList<ExecutableElement> sortedList = ordering.immutableSortedCopy(disambiguateMethods(ElementFilter.methodsIn(elements.getAllMembers(type))));
    return new AccessorProvider() {

        ImmutableListMultimap<String, TypeElement> accessorMapping = ImmutableListMultimap.copyOf(ordering.accessorMapping);

        @Override
        public ImmutableListMultimap<String, TypeElement> accessorMapping() {
            return accessorMapping;
        }

        @Override
        public ImmutableList<ExecutableElement> get() {
            return sortedList;
        }
    };
}

Example 17 with Element

use of javax.lang.model.element.Element in project immutables by immutables.

the class Metaservices method validated.

@Nullable
private TypeElement validated(Element element) {
    Element enclosingElement = element.getEnclosingElement();
    if (element.getKind() == ElementKind.CLASS && element.getModifiers().contains(Modifier.PUBLIC) && !element.getModifiers().contains(Modifier.ABSTRACT) && enclosingElement != null && enclosingElement.getKind() == ElementKind.PACKAGE && !((PackageElement) enclosingElement).isUnnamed()) {
        return (TypeElement) element;
    }
    processing().getMessager().printMessage(Diagnostic.Kind.ERROR, "Element annotated with @Metainf.Service annotation should be public top-level non-abstract class in a package", element);
    return null;
}

Example 18 with Element

use of javax.lang.model.element.Element in project jOOQ by jOOQ.

the class SQLDialectChecker method createSourceVisitor.

@Override
protected SourceVisitor<Void, Void> createSourceVisitor() {
    return new SourceVisitor<Void, Void>(getChecker()) {

        @Override
        public Void visitMethodInvocation(MethodInvocationTree node, Void p) {
            try {
                ExecutableElement elementFromUse = elementFromUse(node);
                Support support = elementFromUse.getAnnotation(Support.class);
                // all jOOQ API method calls will type check.
                if (support != null && support.value().length > 0) {
                    Element enclosing = elementFromDeclaration(enclosingMethod(getPath(root, node)));
                    EnumSet<SQLDialect> supported = EnumSet.copyOf(asList(support.value()));
                    EnumSet<SQLDialect> allowed = EnumSet.noneOf(SQLDialect.class);
                    EnumSet<SQLDialect> required = EnumSet.noneOf(SQLDialect.class);
                    boolean evaluateRequire = true;
                    while (enclosing != null) {
                        Allow allow = enclosing.getAnnotation(Allow.class);
                        if (allow != null)
                            allowed.addAll(asList(allow.value()));
                        if (evaluateRequire) {
                            Require require = enclosing.getAnnotation(Require.class);
                            if (require != null) {
                                evaluateRequire = false;
                                required.clear();
                                required.addAll(asList(require.value()));
                            }
                        }
                        enclosing = enclosing.getEnclosingElement();
                    }
                    if (allowed.isEmpty())
                        error(node, "No jOOQ API usage is allowed at current scope. Use @Allow.");
                    if (required.isEmpty())
                        error(node, "No jOOQ API usage is allowed at current scope due to conflicting @Require specification.");
                    boolean allowedFail = true;
                    allowedLoop: for (SQLDialect a : allowed) {
                        for (SQLDialect s : supported) {
                            if (a.supports(s)) {
                                allowedFail = false;
                                break allowedLoop;
                            }
                        }
                    }
                    if (allowedFail)
                        error(node, "The allowed dialects in scope " + allowed + " do not include any of the supported dialects: " + supported);
                    boolean requiredFail = false;
                    requiredLoop: for (SQLDialect r : required) {
                        for (SQLDialect s : supported) if (r.supports(s))
                            continue requiredLoop;
                        requiredFail = true;
                        break requiredLoop;
                    }
                    if (requiredFail)
                        error(node, "Not all of the required dialects " + required + " from the current scope are supported " + supported);
                }
            } catch (final Exception e) {
                print(new Printer() {

                    @Override
                    public void print(PrintWriter t) {
                        e.printStackTrace(t);
                    }
                });
            }
            return super.visitMethodInvocation(node, p);
        }
    };
}

Example 19 with Element

use of javax.lang.model.element.Element in project jOOQ by jOOQ.

the class PlainSQLChecker method createSourceVisitor.

@Override
protected SourceVisitor<Void, Void> createSourceVisitor() {
    return new SourceVisitor<Void, Void>(getChecker()) {

        @Override
        public Void visitMethodInvocation(MethodInvocationTree node, Void p) {
            try {
                ExecutableElement elementFromUse = elementFromUse(node);
                PlainSQL plainSQL = elementFromUse.getAnnotation(PlainSQL.class);
                // all jOOQ API method calls will type check.
                if (plainSQL != null) {
                    Element enclosing = elementFromDeclaration(enclosingMethod(getPath(root, node)));
                    boolean allowed = false;
                    moveUpEnclosingLoop: while (enclosing != null) {
                        if (enclosing.getAnnotation(Allow.PlainSQL.class) != null) {
                            allowed = true;
                            break moveUpEnclosingLoop;
                        }
                        enclosing = enclosing.getEnclosingElement();
                    }
                    if (!allowed)
                        error(node, "Plain SQL usage not allowed at current scope. Use @Allow.PlainSQL.");
                }
            } catch (final Exception e) {
                print(new Printer() {

                    @Override
                    public void print(PrintWriter t) {
                        e.printStackTrace(t);
                    }
                });
            }
            return super.visitMethodInvocation(node, p);
        }
    };
}

Example 20 with Element

use of javax.lang.model.element.Element in project immutables by immutables.

the class ImportRewriteDisabler method shouldDisableFor.

static boolean shouldDisableFor(ValueType type) {
    Reporter reporter = type.constitution.protoclass().report();
    for (String segment : DOT_SPLITTER.split(type.constitution.implementationPackage())) {
        if (!segment.isEmpty() && Ascii.isUpperCase(segment.charAt(0))) {
            reporter.warning(WARNING_START + " uppercase package names");
            return true;
        }
    }
    Element element = type.constitution.protoclass().sourceElement();
    if (shouldDisableFor(reporter, element)) {
        return true;
    }
    for (ValueAttribute attribute : type.attributes) {
        if (Ascii.isUpperCase(attribute.names.get.charAt(0))) {
            reporter.warning(WARNING_START + " uppercase attribute names");
            return true;
        }
        if (attribute.containedTypeElement != null) {
            if (shouldDisableFor(reporter, attribute.containedTypeElement)) {
                return true;
            }
        }
    }
    for (ValueType nested : type.nested) {
        if (shouldDisableFor(nested)) {
            return true;
        }
    }
    return false;
}