Examples of Coco.NodeProvider

Coco.NodeProvider

    //instantiate the state sets
    currentStates = new HashSet<State>();    
    followerStates = new HashSet<State>();
    
    //enter the start Symbol of the language
    followerStates.add(new StartState(new NodeProvider(tab.gramSy)));
    
    
    
    //set stop position to offset -1, so that unfinished written tokens aren't mistaken for another similar token (most likely as ident)
//    stopPosition = offset-1;

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   * @return the state which the next pointer of s points at.
   *        the next pointer of the parent production if the next pointer of s is null, 
   *        null, if the next pointer is null and the stack is empty (the end of the grammar has been reached), 
   */
  private State getNextState(State s){
    NodeProvider next = s.getNext();
    LinkedList<NodeProvider> stack = s.getStack();
    
    if(next.getNode() == null){
      if(stack.isEmpty()){
        return null;
      }
      
      else{
        NodeProvider node = stack.removeLast();        
        State parent = new State(node, stack);  
        
        return getNextState(parent);
      }
    }

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    HashSet<State> followers = new HashSet<State>();
    if(s==null){
      
    }
    else{
      NodeProvider node = s.getNode();
      LinkedList<NodeProvider> stack = s.getStack();
      
      int nodeType = node.getType();
      switch(nodeType){
        case NodeProvider.eps:          
          State follower2 = getNextState(s);
          followers.addAll(calculateFollowers(follower2));
          break;
      
        case NodeProvider.opt:
        case NodeProvider.iter:
          
          
          State sub = new State(node.getSub(), stack);
          State next = getNextState(s);
          
          followers.addAll(calculateFollowers(sub));
          
          
          followers.addAll(calculateFollowers(next));
          break;
        case NodeProvider.alt:
          State alt1 = new State(node.getSub(), stack);
          State alt2 = new State(node.getDown(), stack);
          
          
          followers.addAll(calculateFollowers(alt1));      
          
          if(alt2.getNode().getNode()!=null){
            followers.addAll(calculateFollowers(alt2));
          }
          


          break;
          
        case NodeProvider.nt:
          
          
          //only continue if the peek token is a terminal follower of the nt
//          BitSet terminalFollowers = node.getSymbol().getTerminalFollowers();
//          BitSet nonTerminalFollowers = node.getSymbol().getNonTerminalFollowers();
          BitSet startSymbols = node.getSymbol().getStartSymbols();
//          System.out.println(getPeekTokenKind() + " " + node.getSymbol().getName());
//          for(int i = 0; i < startSymbols.size(); i++){
//            System.out.print(i + " " +startSymbols.get(i) + " ");            
//          }
//          System.out.println();
          if(startSymbols.get(getPeekTokenKind())){
            stack.add(node);
            State first = new State(node.getSymbol().getGraph(), stack);
            followers.addAll(calculateFollowers(first));
          }
          else if(node.getSymbol().isDeletable()){
            State over = getNextState(s);
            followers.addAll(calculateFollowers(over));
          }
          
          
          
          break;
        case NodeProvider.t:
        case NodeProvider.wt:
                    
          if(getPeekTokenKind() == node.getSymbol().getNumber()){
            followers.add(s);
          }
          break;
          
        default:

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    if(s==null){
      
    }
    
    else{
      NodeProvider node = s.getNode();
      LinkedList<NodeProvider> stack = s.getStack();
      
      int nodeType = node.getType();
      switch(nodeType){
        case NodeProvider.eps:          
          State follower2 = getNextState(s);
          collextProductionsAndTokens(follower2);
          break;
      
        case NodeProvider.opt:
        case NodeProvider.iter:
          
          
          State sub = new State(node.getSub(), stack);
          State next = getNextState(s);
          
          collextProductionsAndTokens(sub);
          
          
          collextProductionsAndTokens(next);
          break;
        case NodeProvider.alt:
          State alt1 = new State(node.getSub(), stack);
          State alt2 = new State(node.getDown(), stack);
          
          
          collextProductionsAndTokens(alt1);      
          
          if(alt2.getNode().getNode()!=null){
            collextProductionsAndTokens(alt2);
          }
          


          break;
          
        case NodeProvider.nt:
          productionProposals.add(s.getNode());
          
          stack.add(node);
          State first = new State(node.getSymbol().getGraph(), stack);
          collextProductionsAndTokens(first);
          
          
          break;
        case NodeProvider.t:

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Related Classes of Coco.NodeProvider

at.ssw.coco.plEditor.features.contentAssist.codeCompletion.CodeCompletionStrategy

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