Example #1
0
  @NotNull
  private Collection<PsiElement> getDeclarationsByDescriptor(
      @NotNull DeclarationDescriptor declarationDescriptor) {
    Collection<PsiElement> declarations;
    if (declarationDescriptor instanceof PackageViewDescriptor) {
      final PackageViewDescriptor aPackage = (PackageViewDescriptor) declarationDescriptor;
      Collection<JetFile> files = trace.get(BindingContext.PACKAGE_TO_FILES, aPackage.getFqName());

      if (files == null) {
        return Collections
            .emptyList(); // package can be defined out of Kotlin sources, e. g. in library or Java
        // code
      }

      declarations =
          Collections2.transform(
              files,
              new Function<JetFile, PsiElement>() {
                @Override
                public PsiElement apply(@Nullable JetFile file) {
                  assert file != null : "File is null for aPackage " + aPackage;
                  return file.getPackageDirective().getNameIdentifier();
                }
              });
    } else {
      declarations =
          Collections.singletonList(
              BindingContextUtils.descriptorToDeclaration(
                  trace.getBindingContext(), declarationDescriptor));
    }
    return declarations;
  }
Example #2
0
  private void checkRedeclarationsInPackages(@NotNull TopDownAnalysisContext c) {
    for (MutablePackageFragmentDescriptor packageFragment :
        Sets.newHashSet(c.getPackageFragments().values())) {
      PackageViewDescriptor packageView =
          packageFragment.getContainingDeclaration().getPackage(packageFragment.getFqName());
      JetScope packageViewScope = packageView.getMemberScope();
      Multimap<Name, DeclarationDescriptor> simpleNameDescriptors =
          packageFragment.getMemberScope().getDeclaredDescriptorsAccessibleBySimpleName();
      for (Name name : simpleNameDescriptors.keySet()) {
        // Keep only properties with no receiver
        Collection<DeclarationDescriptor> descriptors =
            Collections2.filter(
                simpleNameDescriptors.get(name),
                new Predicate<DeclarationDescriptor>() {
                  @Override
                  public boolean apply(@Nullable DeclarationDescriptor descriptor) {
                    if (descriptor instanceof PropertyDescriptor) {
                      PropertyDescriptor propertyDescriptor = (PropertyDescriptor) descriptor;
                      return propertyDescriptor.getReceiverParameter() == null;
                    }
                    return true;
                  }
                });
        ContainerUtil.addIfNotNull(descriptors, packageViewScope.getPackage(name));

        if (descriptors.size() > 1) {
          for (DeclarationDescriptor declarationDescriptor : descriptors) {
            for (PsiElement declaration : getDeclarationsByDescriptor(declarationDescriptor)) {
              assert declaration != null
                  : "Null declaration for descriptor: "
                      + declarationDescriptor
                      + " "
                      + (declarationDescriptor != null
                          ? DescriptorRenderer.FQ_NAMES_IN_TYPES.render(declarationDescriptor)
                          : "");
              trace.report(
                  REDECLARATION.on(declaration, declarationDescriptor.getName().asString()));
            }
          }
        }
      }
    }
  }