Пример #1
0
        public override double VisitMultiplicativeExpr(ExcGrammarParser.MultiplicativeExprContext context)
        {
            var left  = WalkLeft(context);
            var right = WalkRight(context);

            if (context.operatorToken.Type == ExcGrammarLexer.MULTIPLY)
            {
                Debug.WriteLine("{0} * {1}", left, right);
                return(left * right);
            }

            else
            {
                if (right == 0)
                {
                    throw new Exception("Div by 0");
                }
                Debug.WriteLine("{0} / {1}", left, right);
                return(left / right);
            }
        }
Пример #2
0
 /// <summary>
 /// Visit a parse tree produced by the <c>MultiplicativeExpr</c>
 /// labeled alternative in <see cref="ExcGrammarParser.expression"/>.
 /// <para>
 /// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
 /// on <paramref name="context"/>.
 /// </para>
 /// </summary>
 /// <param name="context">The parse tree.</param>
 /// <return>The visitor result.</return>
 public virtual Result VisitMultiplicativeExpr([NotNull] ExcGrammarParser.MultiplicativeExprContext context)
 {
     return(VisitChildren(context));
 }
Пример #3
0
 /// <summary>
 /// Exit a parse tree produced by the <c>MultiplicativeExpr</c>
 /// labeled alternative in <see cref="ExcGrammarParser.expression"/>.
 /// <para>The default implementation does nothing.</para>
 /// </summary>
 /// <param name="context">The parse tree.</param>
 public virtual void ExitMultiplicativeExpr([NotNull] ExcGrammarParser.MultiplicativeExprContext context)
 {
 }