public object VisitCondFactAST([NotNull] CondFactASTContext context)
{
Visit(context.expr(0));
Visit(context.expr(1));
AddLine($"COMPARE_OP {context.relop().GetText()}");
return(null);
}
public object VisitCondFactAST([NotNull] CondFactASTContext context)
{
var a = Visit(context.expr()[0]) as string;
var b = Visit(context.expr()[1]) as string;
var relop = Visit(context.relop()) as string;
var sameType = a == b;
if (relop == "<" || relop == "<=" || relop == ">" || relop == ">=")
{
if (sameType)
{
if (a == "int" || a == "float")
{
return(a);
}
else
{
InsertError(context.relop().Start, $"El operador '{relop}' solo se puede usar con tipos int o float.");
}
}
}
else if (relop == "==" || relop == "!=")
{
if (sameType)
{
return(a);
}
else
{
InsertError(context.expr()[1].Start,
$"El operador '{relop}' no se puede aplicar a los tipos '{a}' y '{b}'.");
}
}
return(null);
}