@NotNull
  @Override
  public PsiCatchSection createCatchSection(
      @NotNull final PsiType exceptionType,
      @NotNull final String exceptionName,
      @Nullable final PsiElement context)
      throws IncorrectOperationException {
    if (!(exceptionType instanceof PsiClassType || exceptionType instanceof PsiDisjunctionType)) {
      throw new IncorrectOperationException("Unexpected type:" + exceptionType);
    }

    @NonNls
    final String text = "catch (" + exceptionType.getCanonicalText() + " " + exceptionName + ") {}";
    final DummyHolder holder =
        DummyHolderFactory.createHolder(
            myManager, new JavaDummyElement(text, CATCH_SECTION, level(context)), context);
    final PsiElement element =
        SourceTreeToPsiMap.treeElementToPsi(holder.getTreeElement().getFirstChildNode());
    if (!(element instanceof PsiCatchSection)) {
      throw new IncorrectOperationException(
          "Incorrect catch section '" + text + "'. Parsed element: " + element);
    }

    final Project project = myManager.getProject();
    final JavaPsiImplementationHelper helper = JavaPsiImplementationHelper.getInstance(project);
    helper.setupCatchBlock(exceptionName, exceptionType, context, (PsiCatchSection) element);
    final CodeStyleManager styleManager = CodeStyleManager.getInstance(project);
    final PsiCatchSection catchSection = (PsiCatchSection) styleManager.reformat(element);

    GeneratedMarkerVisitor.markGenerated(catchSection);
    return catchSection;
  }
 @NotNull
 private PsiAnnotation createAnnotationFromText(@NotNull final String text)
     throws IncorrectOperationException {
   // synchronize during interning in charTable
   synchronized (charTable) {
     final DummyHolder holder =
         DummyHolderFactory.createHolder(
             myPsiManager,
             new JavaDummyElement(text, ANNOTATION, LanguageLevel.HIGHEST),
             null,
             charTable);
     final PsiElement element =
         SourceTreeToPsiMap.treeElementToPsi(holder.getTreeElement().getFirstChildNode());
     if (!(element instanceof PsiAnnotation)) {
       throw new IncorrectOperationException("Incorrect annotation \"" + text + "\".");
     }
     return (PsiAnnotation) element;
   }
 }
Пример #3
0
  @NotNull
  public static PsiAnnotationMemberValue createMemberValueFromText(
      final String text, final PsiManager manager, final ClsElementImpl parent) {
    final PsiElementFactory factory =
        JavaPsiFacade.getInstance(manager.getProject()).getElementFactory();
    final PsiJavaFile context =
        ((PsiJavaParserFacadeImpl) factory).getDummyJavaFile(); // to resolve classes from java.lang
    final LanguageLevel level = PsiUtil.getLanguageLevel(parent);
    final DummyHolder holder =
        DummyHolderFactory.createHolder(
            manager, new JavaDummyElement(text, ANNOTATION_VALUE, level), context);
    final PsiElement element =
        SourceTreeToPsiMap.treeElementToPsi(holder.getTreeElement().getFirstChildNode());
    if (!(element instanceof PsiAnnotationMemberValue)) {
      LOG.error("Could not parse initializer:'" + text + "'");
      return null;
    }

    return getMemberValue(element, parent);
  }
 @NotNull
 @Override
 public PsiElement createDummyHolder(
     @NotNull final String text,
     @NotNull final IElementType type,
     @Nullable final PsiElement context) {
   final DummyHolder result = DummyHolderFactory.createHolder(myManager, context);
   final FileElement holder = result.getTreeElement();
   final Language language = type.getLanguage();
   final ParserDefinition parserDefinition =
       LanguageParserDefinitions.INSTANCE.forLanguage(language);
   assert parserDefinition != null : "No parser definition for language " + language;
   final Project project = myManager.getProject();
   final Lexer lexer = parserDefinition.createLexer(project);
   final PsiBuilder builder =
       PsiBuilderFactory.getInstance().createBuilder(project, holder, lexer, language, text);
   final ASTNode node = parserDefinition.createParser(project).parse(type, builder);
   holder.rawAddChildren((TreeElement) node);
   final PsiElement psi = node.getPsi();
   assert psi != null : text;
   return psi;
 }
  public ASTNode encodeXmlTextContents(String displayText, PsiElement text) {
    final PsiFile containingFile = text.getContainingFile();
    CharTable charTable = SharedImplUtil.findCharTableByTree(text.getNode());
    final FileElement dummyParent =
        DummyHolderFactory.createHolder(text.getManager(), null, charTable).getTreeElement();
    final XmlTag rootTag =
        ((XmlFile)
                PsiFileFactory.getInstance(containingFile.getProject())
                    .createFileFromText("a.xml", "<a>" + displayText + "</a>"))
            .getRootTag();

    assert rootTag != null;
    final XmlTagChild[] tagChildren = rootTag.getValue().getChildren();

    final XmlTagChild child = tagChildren.length > 0 ? tagChildren[0] : null;
    LOG.assertTrue(child != null, "Child is null for tag: " + rootTag.getText());

    final TreeElement element = (TreeElement) child.getNode();
    ((TreeElement) tagChildren[tagChildren.length - 1].getNode().getTreeNext()).rawRemoveUpToLast();
    dummyParent.rawAddChildren(element);
    TreeUtil.clearCaches(dummyParent);
    return element.getFirstChildNode();
  }
  /**
   * This method searches ast node that could be reparsed incrementally and returns pair of target
   * reparseable node and new replacement node. Returns null if there is no any chance to make
   * incremental parsing.
   */
  @Nullable
  public Couple<ASTNode> findReparseableRoots(
      @NotNull PsiFileImpl file,
      @NotNull TextRange changedPsiRange,
      @NotNull CharSequence newFileText) {
    Project project = file.getProject();
    final FileElement fileElement = file.getTreeElement();
    final CharTable charTable = fileElement.getCharTable();
    int lengthShift = newFileText.length() - fileElement.getTextLength();

    if (fileElement.getElementType() instanceof ITemplateDataElementType || isTooDeep(file)) {
      // unable to perform incremental reparse for template data in JSP, or in exceptionally deep
      // trees
      return null;
    }

    final ASTNode leafAtStart =
        fileElement.findLeafElementAt(Math.max(0, changedPsiRange.getStartOffset() - 1));
    final ASTNode leafAtEnd =
        fileElement.findLeafElementAt(
            Math.min(changedPsiRange.getEndOffset(), fileElement.getTextLength() - 1));
    ASTNode node =
        leafAtStart != null && leafAtEnd != null
            ? TreeUtil.findCommonParent(leafAtStart, leafAtEnd)
            : fileElement;
    Language baseLanguage = file.getViewProvider().getBaseLanguage();

    while (node != null && !(node instanceof FileElement)) {
      IElementType elementType = node.getElementType();
      if (elementType instanceof IReparseableElementType) {
        final TextRange textRange = node.getTextRange();
        final IReparseableElementType reparseable = (IReparseableElementType) elementType;

        if (baseLanguage.isKindOf(reparseable.getLanguage())
            && textRange.getLength() + lengthShift > 0) {
          final int start = textRange.getStartOffset();
          final int end = start + textRange.getLength() + lengthShift;
          if (end > newFileText.length()) {
            reportInconsistentLength(file, newFileText, node, start, end);
            break;
          }

          CharSequence newTextStr = newFileText.subSequence(start, end);

          if (reparseable.isParsable(node.getTreeParent(), newTextStr, baseLanguage, project)) {
            ASTNode chameleon = reparseable.createNode(newTextStr);
            if (chameleon != null) {
              DummyHolder holder =
                  DummyHolderFactory.createHolder(
                      file.getManager(), null, node.getPsi(), charTable);
              holder.getTreeElement().rawAddChildren((TreeElement) chameleon);

              if (holder.getTextLength() != newTextStr.length()) {
                String details =
                    ApplicationManager.getApplication().isInternal()
                        ? "text=" + newTextStr + "; treeText=" + holder.getText() + ";"
                        : "";
                LOG.error("Inconsistent reparse: " + details + " type=" + elementType);
              }

              return Couple.of(node, chameleon);
            }
          }
        }
      }
      node = node.getTreeParent();
    }
    return null;
  }