public override Value VisitRelationalExpr(AbstractIfStmtParser.RelationalExprContext ctx)
{
Value left = this.Visit(ctx.expr(0));
Value right = this.Visit(ctx.expr(1));
if ((!left.isNumeric()) && right.isNumeric())
{
return(new Value(false));//Condition where double values are not defined
}
if ((left.isNumeric()) && !right.isNumeric())
{
return(new Value(false));
}
int ctxType = ctx.op.Type;
switch (ctxType)
{
case AbstractIfStmtParser.LT:
return(new Value(left.asDouble() < right.asDouble()));
case AbstractIfStmtParser.LTEQ:
return(new Value(left.asDouble() <= right.asDouble()));
case AbstractIfStmtParser.GT:
return(new Value(left.asDouble() > right.asDouble()));
case AbstractIfStmtParser.GTEQ:
return(new Value(left.asDouble() >= right.asDouble()));
default:
return(new Value(false));
}
}
/// <summary>
/// Visit a parse tree produced by <see cref="AbstractIfStmtParser.relationalExpr"/>.
/// <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 VisitRelationalExpr([NotNull] AbstractIfStmtParser.RelationalExprContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="AbstractIfStmtParser.relationalExpr"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitRelationalExpr([NotNull] AbstractIfStmtParser.RelationalExprContext context)
{
}
