org.antlr.v4.runtime.misc.IntegerStack Java Examples

The following examples show how to use org.antlr.v4.runtime.misc.IntegerStack. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: BQLCompiler.java    From linden with Apache License 2.0 5 votes vote down vote up 
private static TerminalNode getStartNode(ParseTree tree) {
  if (tree instanceof TerminalNode) {
    return (TerminalNode) tree;
  }

  Deque<ParseTree> workList = new ArrayDeque<ParseTree>();
  IntegerStack workIndexStack = new IntegerStack();
  workList.push(tree);
  workIndexStack.push(0);
  while (!workList.isEmpty()) {
    ParseTree currentTree = workList.peek();
    int currentIndex = workIndexStack.peek();
    if (currentIndex == currentTree.getChildCount()) {
      workList.pop();
      workIndexStack.pop();
      continue;
    }

    // move work list to next child
    workIndexStack.push(workIndexStack.pop() + 1);

    // process the current child
    ParseTree child = currentTree.getChild(currentIndex);
    if (child instanceof TerminalNode) {
      return (TerminalNode) child;
    }

    workList.push(child);
    workIndexStack.push(0);
  }

  return null;
}
Example #2
Source File: ECLexer.java    From editorconfig-netbeans with MIT License 4 votes vote down vote up 
public LexerState(int mode, IntegerStack stack) {
  Mode = mode;
  Stack = new IntegerStack(stack);
}
Example #3
Source File: ANTLRv4LexerState.java    From intellij-plugin-v4 with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
public ANTLRv4LexerState(int mode, IntegerStack modeStack, int currentRuleType) {
	super(mode, modeStack);
	this.currentRuleType = currentRuleType;
}
Example #4
Source File: ANTLRLexerState.java    From antlr4-intellij-adaptor with BSD 2-Clause "Simplified" License 2 votes vote down vote up 
/**
 * Constructs a new instance of {@link ANTLRLexerState}
 * containing the mode and mode stack information for an ANTLR
 * lexer.
 *
 * @param mode The current lexer mode, {@link Lexer#_mode}.
 * @param modeStack The lexer mode stack, {@link Lexer#_modeStack}, or {@code null} .
 */
public ANTLRLexerState(int mode, @Nullable IntegerStack modeStack) {
	this.mode = mode;
	this.modeStack = modeStack != null ? modeStack.toArray() : null;
}