示例#1
0
        public override double VisitAdditiveExpr(MyExelParser.AdditiveExprContext context)
        {
            var left  = WalkLeft(context);
            var right = WalkRight(context);

            switch (context.operatorToken.Type)
            {
            case MyExelLexer.ADD:
                return(left + right);

            case MyExelLexer.SUBTRACT:
                return(left - right);

            default:
                return(0.0);
            }
        }
 /// <summary>
 /// Exit a parse tree produced by the <c>AdditiveExpr</c>
 /// labeled alternative in <see cref="MyExelParser.expression"/>.
 /// <para>The default implementation does nothing.</para>
 /// </summary>
 /// <param name="context">The parse tree.</param>
 public virtual void ExitAdditiveExpr([NotNull] MyExelParser.AdditiveExprContext context)
 {
 }
 /// <summary>
 /// Visit a parse tree produced by the <c>AdditiveExpr</c>
 /// labeled alternative in <see cref="MyExelParser.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 VisitAdditiveExpr([NotNull] MyExelParser.AdditiveExprContext context)
 {
     return(VisitChildren(context));
 }