public static boolean containsWhiteSpacesOnly(@Nullable ASTNode node) {
    if (node == null) return false;

    final boolean[] spacesOnly = {true};
    ((TreeElement) node)
        .acceptTree(
            new RecursiveTreeElementWalkingVisitor() {
              @Override
              public void visitComposite(CompositeElement composite) {
                if (!spacesOnly(composite)) {
                  super.visitComposite(composite);
                }
              }

              @Override
              public void visitLeaf(LeafElement leaf) {
                if (!spacesOnly(leaf)) {
                  spacesOnly[0] = false;
                  stopWalking();
                }
              }
            });

    return spacesOnly[0];
  }
  private static void createActionsMap(
      final List<ASTNode> astNodes,
      final FileViewProvider provider,
      final TreeSet<PostprocessFormattingTask> rangesToProcess) {
    final Set<ASTNode> nodesToProcess = new HashSet<ASTNode>(astNodes);
    final Document document = provider.getDocument();
    for (final ASTNode node : astNodes) {
      nodesToProcess.remove(node);
      final FileElement fileElement = TreeUtil.getFileElement((TreeElement) node);
      if (fileElement == null || ((PsiFile) fileElement.getPsi()).getViewProvider() != provider)
        continue;
      final boolean isGenerated = CodeEditUtil.isNodeGenerated(node);

      ((TreeElement) node)
          .acceptTree(
              new RecursiveTreeElementVisitor() {
                boolean inGeneratedContext = !isGenerated;

                protected boolean visitNode(TreeElement element) {
                  if (nodesToProcess.contains(element)) return false;
                  if (CodeEditUtil.isPostponedFormattingDisabled(element)) return false;

                  final boolean currentNodeGenerated = CodeEditUtil.isNodeGenerated(element);
                  CodeEditUtil.setNodeGenerated(element, false);
                  if (currentNodeGenerated && !inGeneratedContext) {
                    rangesToProcess.add(
                        new ReformatTask(document.createRangeMarker(element.getTextRange())));
                    inGeneratedContext = true;
                  }
                  if (!currentNodeGenerated && inGeneratedContext) {
                    if (element.getElementType() == TokenType.WHITE_SPACE) return false;
                    final int oldIndent = CodeEditUtil.getOldIndentation(element);
                    LOG.assertTrue(
                        oldIndent >= 0,
                        "for not generated items old indentation must be defined: element "
                            + element);
                    rangesToProcess.add(
                        new ReindentTask(
                            document.createRangeMarker(element.getTextRange()), oldIndent));
                    inGeneratedContext = false;
                  }
                  return true;
                }

                @Override
                public void visitComposite(CompositeElement composite) {
                  boolean oldGeneratedContext = inGeneratedContext;
                  super.visitComposite(composite);
                  inGeneratedContext = oldGeneratedContext;
                }

                @Override
                public void visitLeaf(LeafElement leaf) {
                  boolean oldGeneratedContext = inGeneratedContext;
                  super.visitLeaf(leaf);
                  inGeneratedContext = oldGeneratedContext;
                }
              });

      CodeEditUtil.enablePostponedFormattingInTree(node);
    }
  }
Пример #3
0
  private List<Pair<StubBasedPsiElementBase, CompositeElement>> calcStubAstBindings(
      final ASTNode root, final Document cachedDocument) {
    final StubTree stubTree = derefStub();
    if (stubTree == null) {
      return Collections.emptyList();
    }

    final Iterator<StubElement<?>> stubs = stubTree.getPlainList().iterator();
    stubs.next(); // Skip file stub;
    final List<Pair<StubBasedPsiElementBase, CompositeElement>> result =
        ContainerUtil.newArrayList();
    final StubBuilder builder = ((IStubFileElementType) getContentElementType()).getBuilder();

    LazyParseableElement.setSuppressEagerPsiCreation(true);
    try {
      ((TreeElement) root)
          .acceptTree(
              new RecursiveTreeElementWalkingVisitor() {
                @Override
                protected void visitNode(TreeElement node) {
                  CompositeElement parent = node.getTreeParent();
                  if (parent != null
                      && builder.skipChildProcessingWhenBuildingStubs(parent, node)) {
                    return;
                  }

                  IElementType type = node.getElementType();
                  if (type instanceof IStubElementType
                      && ((IStubElementType) type).shouldCreateStub(node)) {
                    if (!stubs.hasNext()) {
                      reportStubAstMismatch(
                          "Stub list is less than AST, last AST element: "
                              + node.getElementType()
                              + " "
                              + node,
                          stubTree,
                          cachedDocument);
                    }

                    final StubElement stub = stubs.next();
                    if (stub.getStubType() != node.getElementType()) {
                      reportStubAstMismatch(
                          "Stub and PSI element type mismatch in "
                              + getName()
                              + ": stub "
                              + stub
                              + ", AST "
                              + node.getElementType()
                              + "; "
                              + node,
                          stubTree,
                          cachedDocument);
                    }

                    PsiElement psi = stub.getPsi();
                    assert psi != null
                        : "Stub " + stub + " (" + stub.getClass() + ") has returned null PSI";
                    result.add(Pair.create((StubBasedPsiElementBase) psi, (CompositeElement) node));
                  }

                  super.visitNode(node);
                }
              });
    } finally {
      LazyParseableElement.setSuppressEagerPsiCreation(false);
    }
    if (stubs.hasNext()) {
      reportStubAstMismatch(
          "Stub list in " + getName() + " has more elements than PSI", stubTree, cachedDocument);
    }
    return result;
  }
  private static void createActionsMap(
      @NotNull List<ASTNode> astNodes,
      @NotNull FileViewProvider provider,
      @NotNull final TreeSet<PostprocessFormattingTask> rangesToProcess) {
    final Set<ASTNode> nodesToProcess = new HashSet<ASTNode>(astNodes);
    final Document document = provider.getDocument();
    if (document == null) {
      return;
    }
    for (final ASTNode node : astNodes) {
      nodesToProcess.remove(node);
      final FileElement fileElement = TreeUtil.getFileElement((TreeElement) node);
      if (fileElement == null || ((PsiFile) fileElement.getPsi()).getViewProvider() != provider)
        continue;
      final boolean isGenerated = CodeEditUtil.isNodeGenerated(node);

      ((TreeElement) node)
          .acceptTree(
              new RecursiveTreeElementVisitor() {
                boolean inGeneratedContext = !isGenerated;

                @Override
                protected boolean visitNode(TreeElement element) {
                  if (nodesToProcess.contains(element)) return false;

                  final boolean currentNodeGenerated = CodeEditUtil.isNodeGenerated(element);
                  CodeEditUtil.setNodeGenerated(element, false);
                  if (currentNodeGenerated && !inGeneratedContext) {
                    rangesToProcess.add(
                        new ReformatTask(document.createRangeMarker(element.getTextRange())));
                    inGeneratedContext = true;
                  }
                  if (!currentNodeGenerated && inGeneratedContext) {
                    if (element.getElementType() == TokenType.WHITE_SPACE) return false;
                    final int oldIndent = CodeEditUtil.getOldIndentation(element);
                    CodeEditUtil.setOldIndentation(element, -1);
                    LOG.assertTrue(
                        oldIndent >= 0,
                        "for not generated items old indentation must be defined: element "
                            + element);
                    for (TextRange indentRange : getEnabledRanges(element.getPsi())) {
                      rangesToProcess.add(
                          new ReindentTask(document.createRangeMarker(indentRange), oldIndent));
                    }
                    inGeneratedContext = false;
                  }
                  return true;
                }

                private Iterable<TextRange> getEnabledRanges(@NotNull PsiElement element) {
                  List<TextRange> disabledRanges = new ArrayList<TextRange>();
                  for (DisabledIndentRangesProvider rangesProvider :
                      DisabledIndentRangesProvider.EP_NAME.getExtensions()) {
                    Collection<TextRange> providedDisabledRanges =
                        rangesProvider.getDisabledIndentRanges(element);
                    if (providedDisabledRanges != null) {
                      disabledRanges.addAll(providedDisabledRanges);
                    }
                  }
                  return TextRangeUtil.excludeRanges(element.getTextRange(), disabledRanges);
                }

                @Override
                public void visitComposite(CompositeElement composite) {
                  boolean oldGeneratedContext = inGeneratedContext;
                  super.visitComposite(composite);
                  inGeneratedContext = oldGeneratedContext;
                }

                @Override
                public void visitLeaf(LeafElement leaf) {
                  boolean oldGeneratedContext = inGeneratedContext;
                  super.visitLeaf(leaf);
                  inGeneratedContext = oldGeneratedContext;
                }
              });
    }
  }