Utilities.java 文件源码

/**
 * Creating disjunction expression.
 */
public static DisjunctionContext createDisjunctionContext(final ExprContext leftContext,
    final ExprContext rightContext) {

  final DisjunctionContext disjunctionContext = new DisjunctionContext(new ExprContext());
  final TerminalNodeImpl orNode = new TerminalNodeImpl(new CommonToken(12, "or"));

  // Setting context parents.
  leftContext.parent = disjunctionContext;
  rightContext.parent = disjunctionContext;
  orNode.parent = disjunctionContext;

  disjunctionContext.left = leftContext;
  disjunctionContext.right = rightContext;

  // Adding disjunction expression's children.
  disjunctionContext.addChild(leftContext);
  disjunctionContext.addChild(orNode);
  disjunctionContext.addChild(rightContext);

  return disjunctionContext;
}