public override Result VisitPlus([NotNull] ExpressionParser.PlusContext context)
{
if (context.op != null)
{
if (context.op.Type == ExpressionParser.MINUS)
{
Result a = Visit(context.factor());
object rlt = OperatorProvider.UnaryExecute("op_UnaryNegation", a.Value);;
return(new Result {
Value = rlt
});
}
}
return(Visit(context.factor()));
}
/// <summary>
/// Exit a parse tree produced by the <c>Plus</c>
/// labeled alternative in <see cref="ExpressionParser.unary"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitPlus([NotNull] ExpressionParser.PlusContext context)
{
}
/// <summary>
/// Visit a parse tree produced by the <c>Plus</c>
/// labeled alternative in <see cref="ExpressionParser.unary"/>.
/// <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 VisitPlus([NotNull] ExpressionParser.PlusContext context)
{
return(VisitChildren(context));
}
