Ejemplo n.º 1
0
void UnwrappedLineParser::parseStructuralElement() {
  assert(!FormatTok->Tok.is(tok::l_brace));
  switch (FormatTok->Tok.getKind()) {
  case tok::at:
    nextToken();
    if (FormatTok->Tok.is(tok::l_brace)) {
      parseBracedList();
      break;
    }
    switch (FormatTok->Tok.getObjCKeywordID()) {
    case tok::objc_public:
    case tok::objc_protected:
    case tok::objc_package:
    case tok::objc_private:
      return parseAccessSpecifier();
    case tok::objc_interface:
    case tok::objc_implementation:
      return parseObjCInterfaceOrImplementation();
    case tok::objc_protocol:
      return parseObjCProtocol();
    case tok::objc_end:
      return; // Handled by the caller.
    case tok::objc_optional:
    case tok::objc_required:
      nextToken();
      addUnwrappedLine();
      return;
    default:
      break;
    }
    break;
  case tok::kw_namespace:
    parseNamespace();
    return;
  case tok::kw_inline:
    nextToken();
    if (FormatTok->Tok.is(tok::kw_namespace)) {
      parseNamespace();
      return;
    }
    break;
  case tok::kw_public:
  case tok::kw_protected:
  case tok::kw_private:
    parseAccessSpecifier();
    return;
  case tok::kw_if:
    parseIfThenElse();
    return;
  case tok::kw_for:
  case tok::kw_while:
    parseForOrWhileLoop();
    return;
  case tok::kw_do:
    parseDoWhile();
    return;
  case tok::kw_switch:
    parseSwitch();
    return;
  case tok::kw_default:
    nextToken();
    parseLabel();
    return;
  case tok::kw_case:
    parseCaseLabel();
    return;
  case tok::kw_try:
    parseTryCatch();
    return;
  case tok::kw_extern:
    nextToken();
    if (FormatTok->Tok.is(tok::string_literal)) {
      nextToken();
      if (FormatTok->Tok.is(tok::l_brace)) {
        parseBlock(/*MustBeDeclaration=*/true, /*AddLevel=*/false);
        addUnwrappedLine();
        return;
      }
    }
    break;
  case tok::identifier:
    if (FormatTok->IsForEachMacro) {
      parseForOrWhileLoop();
      return;
    }
    // In all other cases, parse the declaration.
    break;
  default:
    break;
  }
  do {
    switch (FormatTok->Tok.getKind()) {
    case tok::at:
      nextToken();
      if (FormatTok->Tok.is(tok::l_brace))
        parseBracedList();
      break;
    case tok::kw_enum:
      parseEnum();
      break;
    case tok::kw_typedef:
      nextToken();
      // FIXME: Use the IdentifierTable instead.
      if (FormatTok->TokenText == "NS_ENUM")
        parseEnum();
      break;
    case tok::kw_struct:
    case tok::kw_union:
    case tok::kw_class:
      parseRecord();
      // A record declaration or definition is always the start of a structural
      // element.
      break;
    case tok::semi:
      nextToken();
      addUnwrappedLine();
      return;
    case tok::r_brace:
      addUnwrappedLine();
      return;
    case tok::l_paren:
      parseParens();
      break;
    case tok::caret:
      nextToken();
      if (FormatTok->Tok.isAnyIdentifier() ||
          FormatTok->isSimpleTypeSpecifier())
        nextToken();
      if (FormatTok->is(tok::l_paren))
        parseParens();
      if (FormatTok->is(tok::l_brace))
        parseChildBlock();
      break;
    case tok::l_brace:
      if (!tryToParseBracedList()) {
        // A block outside of parentheses must be the last part of a
        // structural element.
        // FIXME: Figure out cases where this is not true, and add projections
        // for them (the one we know is missing are lambdas).
        if (Style.BreakBeforeBraces != FormatStyle::BS_Attach)
          addUnwrappedLine();
        FormatTok->Type = TT_FunctionLBrace;
        parseBlock(/*MustBeDeclaration=*/false);
        addUnwrappedLine();
        return;
      }
      // Otherwise this was a braced init list, and the structural
      // element continues.
      break;
    case tok::kw_try:
      // We arrive here when parsing function-try blocks.
      parseTryCatch();
      return;
    case tok::identifier: {
      StringRef Text = FormatTok->TokenText;
      if (Style.Language == FormatStyle::LK_JavaScript && Text == "function") {
        tryToParseJSFunction();
        break;
      }
      nextToken();
      if (Line->Tokens.size() == 1) {
        if (FormatTok->Tok.is(tok::colon)) {
          parseLabel();
          return;
        }
        // Recognize function-like macro usages without trailing semicolon.
        if (FormatTok->Tok.is(tok::l_paren)) {
          parseParens();
          if (FormatTok->NewlinesBefore > 0 &&
              tokenCanStartNewLine(FormatTok->Tok) && Text == Text.upper()) {
            addUnwrappedLine();
            return;
          }
        } else if (FormatTok->HasUnescapedNewline && Text.size() >= 5 &&
                   Text == Text.upper()) {
          // Recognize free-standing macros like Q_OBJECT.
          addUnwrappedLine();
          return;
        }
      }
      break;
    }
    case tok::equal:
      nextToken();
      if (FormatTok->Tok.is(tok::l_brace)) {
        parseBracedList();
      }
      break;
    case tok::l_square:
      parseSquare();
      break;
    default:
      nextToken();
      break;
    }
  } while (!eof());
}
Ejemplo n.º 2
0
void UnwrappedLineParser::parseStatement() {
  parseComments();

  switch (FormatTok.Tok.getKind()) {
  case tok::kw_namespace:
    parseNamespace();
    return;
  case tok::kw_public:
  case tok::kw_protected:
  case tok::kw_private:
    parseAccessSpecifier();
    return;
  case tok::kw_if:
    parseIfThenElse();
    return;
  case tok::kw_for:
  case tok::kw_while:
    parseForOrWhileLoop();
    return;
  case tok::kw_do:
    parseDoWhile();
    return;
  case tok::kw_switch:
    parseSwitch();
    return;
  case tok::kw_default:
    nextToken();
    parseLabel();
    return;
  case tok::kw_case:
    parseCaseLabel();
    return;
  default:
    break;
  }
  int TokenNumber = 0;
  do {
    ++TokenNumber;
    switch (FormatTok.Tok.getKind()) {
    case tok::kw_enum:
      parseEnum();
      return;
    case tok::semi:
      nextToken();
      addUnwrappedLine();
      return;
    case tok::l_paren:
      parseParens();
      break;
    case tok::l_brace:
      parseBlock();
      addUnwrappedLine();
      return;
    case tok::identifier:
      nextToken();
      if (TokenNumber == 1 && FormatTok.Tok.is(tok::colon)) {
        parseLabel();
        return;
      }
      break;
    case tok::equal:
      nextToken();
      // Skip initializers as they will be formatted by a later step.
      if (FormatTok.Tok.is(tok::l_brace))
        nextToken();
      break;
    default:
      nextToken();
      break;
    }
  } while (!eof());
}