public void parseSliceEnd(PsiBuilder.Marker exprStart, PsiBuilder.Marker sliceItemStart) {
    myBuilder.advanceLexer();
    if (atToken(PyTokenTypes.RBRACKET)) {
      PsiBuilder.Marker sliceMarker = myBuilder.mark();
      sliceMarker.done(PyElementTypes.EMPTY_EXPRESSION);
      sliceItemStart.done(PyElementTypes.SLICE_ITEM);
      nextToken();
      exprStart.done(PyElementTypes.SLICE_EXPRESSION);
      return;
    } else {
      if (atToken(PyTokenTypes.COLON)) {
        PsiBuilder.Marker sliceMarker = myBuilder.mark();
        sliceMarker.done(PyElementTypes.EMPTY_EXPRESSION);
      } else {
        parseSingleExpression(false);
      }
      if (!BRACKET_COLON_COMMA.contains(myBuilder.getTokenType())) {
        myBuilder.error(message("PARSE.expected.colon.or.rbracket"));
      }
      if (matchToken(PyTokenTypes.COLON)) {
        parseSingleExpression(false);
      }

      sliceItemStart.done(PyElementTypes.SLICE_ITEM);
      if (!BRACKET_OR_COMMA.contains(myBuilder.getTokenType())) {
        myBuilder.error("']' or ',' expected");
      }
    }

    parseSliceListTail(exprStart, null);
  }
Esempio n. 2
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  /**
   * Named list operators
   *
   * @param b PerlBuilder
   * @param l Parsing level
   * @return parsing result
   */
  public static boolean isListOperator(PsiBuilder b, int l) {
    PerlTokenData prevTokenData = ((PerlBuilder) b).lookupToken(-1);

    if (prevTokenData != null && prevTokenData.getTokenType() == OPERATOR_DEREFERENCE) return false;

    IElementType tokenType = b.getTokenType();
    IElementType nextTokenType = b.lookAhead(1);

    if (CONVERTABLE_TOKENS.contains(tokenType)
        && nextTokenType != LEFT_PAREN // not function call
        && !PACKAGE_TOKENS.contains(nextTokenType) // not method Package::
        && !(nextTokenType == IDENTIFIER
            && ((PerlBuilder) b)
                .isKnownPackage(
                    ((PerlBuilder) b).lookupToken(1).getTokenText())) // not Method Package
    )
      // todo we should check current namespace here
      return !PerlSubUtil.BUILT_IN_UNARY.contains(b.getTokenText());
    else if (PACKAGE_TOKENS.contains(tokenType)
        && CONVERTABLE_TOKENS.contains(nextTokenType)
        && b.lookAhead(2) != LEFT_PAREN)
      return !PerlSubUtil.isUnary(
          b.getTokenText(), ((PerlBuilder) b).lookupToken(1).getTokenText());

    return false;
  }
Esempio n. 3
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  /**
   * Statement recovery function. Should not consume token, only check;
   *
   * @param b PerlBuilder
   * @param l parsing level
   * @return parsing result
   */
  public static boolean recoverStatement(PsiBuilder b, int l) {
    assert b instanceof PerlBuilder;

    if (!((PerlBuilder) b).isRecoveringStatement()) ((PerlBuilder) b).startRecovery();

    IElementType currentTokenType = b.getTokenType();

    //		System.err.println("Checking " + b.getTokenText() + currentTokenType);

    if (currentTokenType == null // got end of file
        || ((PerlBuilder) b).getBracesLevel() == 0
            && ( // we are not in braced statement
            UNCONDITIONAL_STATEMENT_RECOVERY_TOKENS.contains(
                    currentTokenType) // got semi, package, end of regex, use, compound or suffix
                || currentTokenType == RESERVED_SUB
                    && STATEMENT_RECOVERY_SUB_SUFFIX.contains(b.lookAhead(1)) // got sub definition
            )) {
      ((PerlBuilder) b).stopRecovery();
      return false;
    }

    if (currentTokenType == LEFT_BRACE) ((PerlBuilder) b).openBrace();
    else if (currentTokenType == RIGHT_BRACE) ((PerlBuilder) b).closeBrace();

    return true;
  }
 boolean typeExtends(IElementType child, IElementType parent) {
   if (child == parent) return true;
   if (extendsSets != null) {
     for (TokenSet set : extendsSets) {
       if (set.contains(child) && set.contains(parent)) return true;
     }
   }
   return altExtendsChecker != null && altExtendsChecker.process(child, parent);
 }
  @Nullable
  private PsiBuilder.Marker parseUnary(final PsiBuilder builder) {
    final IElementType tokenType = builder.getTokenType();

    if (PREFIX_OPS.contains(tokenType)) {
      final PsiBuilder.Marker unary = builder.mark();
      builder.advanceLexer();

      final PsiBuilder.Marker operand = parseUnary(builder);
      if (operand == null) {
        error(builder, JavaErrorMessages.message("expected.expression"));
      }

      unary.done(JavaElementType.PREFIX_EXPRESSION);
      return unary;
    } else if (tokenType == JavaTokenType.LPARENTH) {
      final PsiBuilder.Marker typeCast = builder.mark();
      builder.advanceLexer();

      ReferenceParser.TypeInfo typeInfo =
          myParser
              .getReferenceParser()
              .parseTypeInfo(
                  builder,
                  ReferenceParser.EAT_LAST_DOT
                      | ReferenceParser.WILDCARD
                      | ReferenceParser.CONJUNCTIONS
                      | ReferenceParser.INCOMPLETE_ANNO);
      if (typeInfo == null || !expect(builder, JavaTokenType.RPARENTH)) {
        typeCast.rollbackTo();
        return parsePostfix(builder);
      }

      if (PREF_ARITHMETIC_OPS.contains(builder.getTokenType()) && !typeInfo.isPrimitive) {
        typeCast.rollbackTo();
        return parsePostfix(builder);
      }

      final PsiBuilder.Marker expr = parseUnary(builder);
      if (expr == null) {
        if (!typeInfo
            .isParameterized) { // cannot parse correct parenthesized expression after correct
                                // parameterized type
          typeCast.rollbackTo();
          return parsePostfix(builder);
        } else {
          error(builder, JavaErrorMessages.message("expected.expression"));
        }
      }

      typeCast.done(JavaElementType.TYPE_CAST_EXPRESSION);
      return typeCast;
    } else {
      return parsePostfix(builder);
    }
  }
 /**
  * There is a possible case that given base node doesn't have {@link
  * AlignmentInColumnsConfig#getTargetDeclarationTypes() target type} but its first child node or
  * first child node of the first child node etc does.
  *
  * <p>This method tries to derive node of the target type from the given node.
  *
  * @param baseNode base node to process
  * @param targetTypes target node types
  * @return base node or its first descendant child that has {@link
  *     AlignmentInColumnsConfig#getTargetDeclarationTypes() target type} target type if the one if
  *     found; <code>null</code> otherwise
  */
 @Nullable
 private static ASTNode deriveNodeOfTargetType(ASTNode baseNode, TokenSet targetTypes) {
   if (targetTypes.contains(baseNode.getElementType())) {
     return baseNode;
   }
   for (ASTNode node = baseNode; node != null; node = node.getFirstChildNode()) {
     IElementType nodeType = node.getElementType();
     if (targetTypes.contains(nodeType)) {
       return node;
     }
   }
   return null;
 }
Esempio n. 7
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 /**
  * Tries to calculate given line's indent column assuming that there might be a comment at the
  * given indent offset (see {@link #getCommentPrefix(IElementType)}).
  *
  * @param line target line
  * @param indentOffset start indent offset to use for the given line
  * @param lineEndOffset given line's end offset
  * @param fallbackColumn column to return if it's not possible to apply comment-specific indent
  *     calculation rules
  * @return given line's indent column to use
  */
 private int calcIndent(int line, int indentOffset, int lineEndOffset, int fallbackColumn) {
   final HighlighterIterator it = myEditor.getHighlighter().createIterator(indentOffset);
   IElementType tokenType = it.getTokenType();
   Language language = tokenType.getLanguage();
   TokenSet comments = myComments.get(language);
   if (comments == null) {
     ParserDefinition definition = LanguageParserDefinitions.INSTANCE.forLanguage(language);
     if (definition != null) {
       comments = definition.getCommentTokens();
     }
     if (comments == null) {
       return fallbackColumn;
     } else {
       myComments.put(language, comments);
     }
   }
   if (comments.contains(tokenType) && indentOffset == it.getStart()) {
     String prefix = COMMENT_PREFIXES.get(tokenType);
     if (prefix == null) {
       prefix = getCommentPrefix(tokenType);
     }
     if (!NO_COMMENT_INFO_MARKER.equals(prefix)) {
       final int indentInsideCommentOffset =
           CharArrayUtil.shiftForward(
               myChars, indentOffset + prefix.length(), lineEndOffset, " \t");
       if (indentInsideCommentOffset < lineEndOffset) {
         int indent = myEditor.calcColumnNumber(indentInsideCommentOffset, line);
         indentAfterUncomment.put(line, indent - prefix.length());
         return indent;
       }
     }
   }
   return fallbackColumn;
 }
  void addNestedChildrenSuffix(
      List<Block> list,
      @Nullable AlignmentProvider.Aligner aligner,
      boolean topLevel,
      List<ASTNode> children,
      int limit) {
    for (int i = 1; i < limit; i++) {
      ASTNode childNode = children.get(i);
      if (canBeCorrectBlock(childNode)) {
        IElementType type = childNode.getElementType();
        Indent indent =
            topLevel || NESTED.contains(type) || type == mIDENT || TokenSets.DOTS.contains(type)
                ? Indent.getContinuationWithoutFirstIndent()
                : Indent.getNoneIndent();

        if (aligner != null && TokenSets.DOTS.contains(type)) {
          aligner.append(childNode.getPsi());
        }

        list.add(
            new GroovyBlock(
                childNode, indent, myWrap, mySettings, myGroovySettings, myAlignmentProvider));
      }
    }
  }
  @Nullable
  private static PsiBuilder.Marker parseBinary(
      final PsiBuilder builder, final ExprType type, final TokenSet ops) {
    PsiBuilder.Marker left = parseExpression(builder, type);
    if (left == null) return null;

    while (true) {
      final IElementType tokenType = getGtTokenType(builder);
      if (tokenType == null || !ops.contains(tokenType)) break;

      final PsiBuilder.Marker binary = left.precede();
      advanceGtToken(builder, tokenType);

      final PsiBuilder.Marker right = parseExpression(builder, type);
      if (right == null) {
        error(builder, JavaErrorMessages.message("expected.expression"));
        binary.done(JavaElementType.BINARY_EXPRESSION);
        return binary;
      }

      binary.done(JavaElementType.BINARY_EXPRESSION);
      left = binary;
    }

    return left;
  }
  private boolean parseSliceListTail(
      PsiBuilder.Marker exprStart, @Nullable PsiBuilder.Marker sliceOrTupleStart) {
    boolean inSlice = sliceOrTupleStart == null;
    while (atToken(PyTokenTypes.COMMA)) {
      nextToken();
      PsiBuilder.Marker sliceItemStart = myBuilder.mark();
      parseTestExpression(false, false);
      if (matchToken(PyTokenTypes.COLON)) {
        inSlice = true;
        parseTestExpression(false, false);
        if (matchToken(PyTokenTypes.COLON)) {
          parseTestExpression(false, false);
        }
      }
      sliceItemStart.done(PyElementTypes.SLICE_ITEM);
      if (!BRACKET_OR_COMMA.contains(myBuilder.getTokenType())) {
        myBuilder.error("']' or ',' expected");
        break;
      }
    }
    checkMatches(PyTokenTypes.RBRACKET, message("PARSE.expected.rbracket"));

    if (inSlice) {
      if (sliceOrTupleStart != null) {
        sliceOrTupleStart.drop();
      }
      exprStart.done(PyElementTypes.SLICE_EXPRESSION);
    }
    return inSlice;
  }
Esempio n. 11
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 @NotNull
 private static Indent indentIfNotBrace(@NotNull ASTNode child) {
   if (BRACES_TOKEN_SET.contains(child.getElementType())) {
     return Indent.getNoneIndent();
   } else {
     return Indent.getNormalIndent();
   }
 }
Esempio n. 12
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  @NotNull
  public static PsiBuilder.Marker parseArgumentList(final PsiBuilder builder) {
    final PsiBuilder.Marker list = builder.mark();
    builder.advanceLexer();

    boolean first = true;
    while (true) {
      final IElementType tokenType = builder.getTokenType();
      if (first && (ARGS_LIST_END.contains(tokenType) || builder.eof())) break;
      if (!first && !ARGS_LIST_CONTINUE.contains(tokenType)) break;

      boolean hasError = false;
      if (!first) {
        if (builder.getTokenType() == JavaTokenType.COMMA) {
          builder.advanceLexer();
        } else {
          hasError = true;
          error(builder, JavaErrorMessages.message("expected.comma.or.rparen"));
          emptyExpression(builder);
        }
      }
      first = false;

      final PsiBuilder.Marker arg = parse(builder);
      if (arg == null) {
        if (!hasError) {
          error(builder, JavaErrorMessages.message("expected.expression"));
          emptyExpression(builder);
        }
        if (!ARGS_LIST_CONTINUE.contains(builder.getTokenType())) break;
        if (builder.getTokenType() != JavaTokenType.COMMA && !builder.eof()) {
          builder.advanceLexer();
        }
      }
    }

    final boolean closed =
        JavaParserUtil.expectOrError(
            builder, JavaTokenType.RPARENTH, JavaErrorMessages.message("expected.rparen"));

    list.done(JavaElementType.EXPRESSION_LIST);
    if (!closed) {
      list.setCustomEdgeTokenBinders(null, GREEDY_RIGHT_EDGE_PROCESSOR);
    }
    return list;
  }
 public static boolean isPrecededBy(
     @Nullable ASTNode node, TokenSet expectedTypes, IElementType... skipTypes) {
   ASTNode prevNode = node == null ? null : node.getTreePrev();
   while (prevNode != null && (isWhitespaceOrEmpty(prevNode) || isOneOf(prevNode, skipTypes))) {
     prevNode = prevNode.getTreePrev();
   }
   if (prevNode == null) return false;
   return expectedTypes.contains(prevNode.getElementType());
 }
Esempio n. 14
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  /**
   * parser for print/say/printf filehandle
   *
   * @param b PerlBuilder
   * @param l parsing level
   * @return parsing result
   */
  public static boolean parsePrintHandle(PsiBuilder b, int l) {
    IElementType currentTokenType = b.getTokenType();
    IElementType nextTokenType = b.lookAhead(1);
    assert b instanceof PerlBuilder;

    if (CONVERTABLE_TOKENS.contains(currentTokenType) // it's identifier
        && !PRINT_HANDLE_NEGATE_SUFFIX.contains(nextTokenType) // no negation tokens
        && !PerlSubUtil.BUILT_IN.contains(
            b.getTokenText()) // it's not built in. crude, probably we should check any known sub
    ) {
      PsiBuilder.Marker m = b.mark();
      b.advanceLexer();
      m.collapse(HANDLE);
      return true;
    }

    return false;
  }
Esempio n. 15
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 @Nullable
 public static ASTNode skipWhitespaceCommentsAndTokens(final ASTNode node, TokenSet alsoSkip) {
   ASTNode element = node;
   while (true) {
     if (element == null) return null;
     if (!isWhitespaceOrComment(element) && !alsoSkip.contains(element.getElementType())) break;
     element = element.getTreeNext();
   }
   return element;
 }
Esempio n. 16
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 @NotNull
 private Indent calcIndent(@NotNull ASTNode child) {
   IElementType parentType = myNode.getElementType();
   if (parentType == TOP_LEVEL) return Indent.getAbsoluteNoneIndent();
   if (BLOCKS_TOKEN_SET.contains(parentType)) {
     return indentIfNotBrace(child);
   } else {
     return Indent.getNoneIndent();
   }
 }
Esempio n. 17
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 /**
  * Parsing label declaration LABEL:
  *
  * @param b PerlBuilder
  * @param l parsing level
  * @return parsing result
  */
 public static boolean parseLabelDeclaration(PsiBuilder b, int l) {
   if (CONVERTABLE_TOKENS.contains(b.getTokenType()) && b.lookAhead(1) == COLON) {
     PsiBuilder.Marker m = b.mark();
     b.advanceLexer();
     m.collapse(LABEL);
     b.advanceLexer();
     return true;
   }
   return false;
 }
Esempio n. 18
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 /**
  * Checks for version token and convert if necessary
  *
  * @param b PerlBuilder
  * @param l parsing level
  * @return parsing result
  */
 public static boolean parsePerlVersion(PsiBuilder b, int l) {
   if (b.getTokenType() == NUMBER_VERSION) return consumeToken(b, NUMBER_VERSION);
   else if (VERSION_TOKENS.contains(b.getTokenType())) {
     PsiBuilder.Marker m = b.mark();
     b.advanceLexer();
     m.collapse(NUMBER_VERSION);
     return true;
   }
   return false;
 }
  public GoBinaryExpressionBlock(
      ASTNode node, Alignment alignment, Wrap wrap, CommonCodeStyleSettings settings) {
    super(node, alignment, Indent.getNormalIndent(), wrap, settings);

    GoBinaryExpression psi = node.getPsi(GoBinaryExpression.class);
    if (psi != null && EMPTY_SPACE_TOKENS.contains(psi.getOperator())) {
      spacing = EMPTY_SPACING_KEEP_LINE_BREAKS;
    } else {
      spacing = BASIC_SPACING_KEEP_LINE_BREAKS;
    }
  }
Esempio n. 20
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  @Nullable
  protected Indent getChildIndent() {
    IElementType parentType =
        myNode.getElementType(); // always the parent since isIncomplete is false

    if (BLOCKS_TOKEN_SET.contains(parentType)) {
      return Indent.getNormalIndent();
    } else {
      return Indent.getNoneIndent();
    }
  }
Esempio n. 21
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  public static boolean convertBracedString(PsiBuilder b, int l) {

    if (CONVERTABLE_TOKENS.contains(b.getTokenType()) && b.lookAhead(1) == RIGHT_BRACE) {
      // fixme shouldn't we add string_sq here?
      PsiBuilder.Marker m = b.mark();
      b.advanceLexer();
      m.collapse(STRING_CONTENT);
      return true;
    }
    return false;
  }
Esempio n. 22
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  // @todo this is really raw
  public static boolean parseVariableAttributes(PsiBuilder b, int l) {

    PsiBuilder.Marker m = null;
    while (!b.eof() && !VARIABLE_ATTRIBUTE_STOP_TOKENS.contains(b.getTokenType())) {
      if (m == null) m = b.mark();
      b.advanceLexer();
    }
    if (m != null) m.collapse(VAR_ATTRIBUTE);

    return true;
  }
 private static List<IElementType> findSubNodeTypes(ASTNode node, TokenSet types) {
   List<IElementType> foundTypes = new SmartList<IElementType>();
   for (ASTNode child = node.getFirstChildNode();
       child != null && child.getTreeParent() == node;
       child = child.getTreeNext()) {
     IElementType type = child.getElementType();
     if (types.contains(type)) {
       foundTypes.add(type);
     }
   }
   return foundTypes;
 }
Esempio n. 24
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  /**
   * Checks and parses bareword filehandle for <FH> operations
   *
   * @param b PerlBuilder
   * @param l parsing level
   * @return parsing result
   */
  public static boolean parseReadHandle(PsiBuilder b, int l) {
    IElementType currentTokenType = b.getTokenType();
    IElementType nextTokenType = b.lookAhead(1);

    if (CONVERTABLE_TOKENS.contains(currentTokenType) && nextTokenType == OPERATOR_GT_NUMERIC) {
      PsiBuilder.Marker m = b.mark();
      b.advanceLexer();
      m.collapse(HANDLE);
      return true;
    }

    return false;
  }
  @Nullable
  private PsiBuilder.Marker parseBinary(
      final PsiBuilder builder, final ExprType type, final TokenSet ops) {
    PsiBuilder.Marker result = parseExpression(builder, type);
    if (result == null) return null;
    int operandCount = 1;

    IElementType tokenType = getGtTokenType(builder);
    IElementType currentExprTokenType = tokenType;
    while (true) {
      if (tokenType == null || !ops.contains(tokenType)) break;

      advanceGtToken(builder, tokenType);

      final PsiBuilder.Marker right = parseExpression(builder, type);
      operandCount++;
      tokenType = getGtTokenType(builder);
      if (tokenType == null
          || !ops.contains(tokenType)
          || tokenType != currentExprTokenType
          || right == null) {
        // save
        result = result.precede();
        if (right == null) {
          error(builder, JavaErrorMessages.message("expected.expression"));
        }
        result.done(
            operandCount > 2
                ? JavaElementType.POLYADIC_EXPRESSION
                : JavaElementType.BINARY_EXPRESSION);
        if (right == null) break;
        currentExprTokenType = tokenType;
        operandCount = 1;
      }
    }

    return result;
  }
Esempio n. 26
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  /**
   * Merges sequence [package] identifier to a package
   *
   * @param b PerlBuilder
   * @param l parsing level
   * @return result
   */
  public static boolean mergePackageName(PsiBuilder b, int l) {
    IElementType tokenType = b.getTokenType();

    if (tokenType == PACKAGE) {
      b.advanceLexer();
      return true;
    } else if (PACKAGE_TOKENS.contains(tokenType) && CONVERTABLE_TOKENS.contains(b.lookAhead(1))) {
      PsiBuilder.Marker m = b.mark();
      b.advanceLexer();
      b.advanceLexer();
      m.collapse(PACKAGE);
      return true;
    } else if (PACKAGE_TOKENS.contains(tokenType) // explicit package name, like Foo::->method()
        || CONVERTABLE_TOKENS.contains(tokenType) // single word package
    ) {
      PsiBuilder.Marker m = b.mark();
      b.advanceLexer();
      m.collapse(PACKAGE);
      return true;
    }

    return false;
  }
    @Override
    @NotNull
    public Map<TodoIndexEntry, Integer> map(@NotNull final FileContent inputData) {
      if (IndexPatternUtil.getIndexPatternCount() > 0) {
        final CharSequence chars = inputData.getContentAsText();
        final OccurrenceConsumer occurrenceConsumer = new OccurrenceConsumer(null, true);
        EditorHighlighter highlighter;

        final EditorHighlighter editorHighlighter = inputData.getUserData(EDITOR_HIGHLIGHTER);
        if (editorHighlighter != null
            && checkCanUseCachedEditorHighlighter(chars, editorHighlighter)) {
          highlighter = editorHighlighter;
        } else {
          highlighter = HighlighterFactory.createHighlighter(inputData.getProject(), myFile);
          highlighter.setText(chars);
        }

        final int documentLength = chars.length();
        BaseFilterLexer.TodoScanningState todoScanningState = null;
        final HighlighterIterator iterator = highlighter.createIterator(0);

        while (!iterator.atEnd()) {
          final IElementType token = iterator.getTokenType();

          if (myCommentTokens.contains(token) || CacheUtil.isInComments(token)) {
            int start = iterator.getStart();
            if (start >= documentLength) break;
            int end = iterator.getEnd();

            todoScanningState =
                BaseFilterLexer.advanceTodoItemsCount(
                    chars.subSequence(start, Math.min(end, documentLength)),
                    occurrenceConsumer,
                    todoScanningState);
            if (end > documentLength) break;
          }
          iterator.advance();
        }
        final Map<TodoIndexEntry, Integer> map = new HashMap<>();
        for (IndexPattern pattern : IndexPatternUtil.getIndexPatterns()) {
          final int count = occurrenceConsumer.getOccurrenceCount(pattern);
          if (count > 0) {
            map.put(
                new TodoIndexEntry(pattern.getPatternString(), pattern.isCaseSensitive()), count);
          }
        }
        return map;
      }
      return Collections.emptyMap();
    }
Esempio n. 28
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  /**
   * Replaces identifier as a variable name
   *
   * @param b Perlbuilder
   * @param l parsing level
   * @return parsing result
   */
  public static boolean convertIdentifier(PsiBuilder b, int l, IElementType tokenType) {
    IElementType currentTokenType = b.getTokenType();
    if (currentTokenType == tokenType) {
      b.advanceLexer();
      return true;
    } else if (CONVERTABLE_TOKENS.contains(currentTokenType)) {
      PsiBuilder.Marker m = b.mark();
      b.advanceLexer();
      m.collapse(tokenType);
      return true;
    }

    return false;
  }
Esempio n. 29
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  /**
   * Completes namespace, invoked when we are 100% sure that PACKAGE_IDENTIFIER is a package
   *
   * @param b Perlbuilder
   * @param l parsing level
   * @return parsing result
   */
  public static boolean convertPackageIdentifier(PsiBuilder b, int l) {
    IElementType currentTokenType = b.getTokenType();
    if (currentTokenType == PACKAGE) {
      b.advanceLexer();
      return true;
    } else if (PACKAGE_TOKENS.contains(currentTokenType)) {
      PsiBuilder.Marker m = b.mark();
      b.advanceLexer();
      m.collapse(PACKAGE);
      return true;
    }

    return false;
  }
  @Nullable
  private PsiBuilder.Marker parsePostfix(final PsiBuilder builder) {
    PsiBuilder.Marker operand = parsePrimary(builder, null, -1);
    if (operand == null) return null;

    while (POSTFIX_OPS.contains(builder.getTokenType())) {
      final PsiBuilder.Marker postfix = operand.precede();
      builder.advanceLexer();
      postfix.done(JavaElementType.POSTFIX_EXPRESSION);
      operand = postfix;
    }

    return operand;
  }