/// <summary>
/// Auto incrementa o decrementa una variable
/// </summary>
/// <param name="name"></param>
/// <param name="value"></param>
internal void AutoSum(string name, double val)
{
ScopeMember member = GetVar(name);
if (member != null && member.IsVar)
{
member.Value = Calc.Add(member.Value, val);
}
}
/// <summary>
/// Corre una funcion y retorna su valor
/// </summary>
/// <param name="fnct"></param>
/// <returns></returns>
internal object Raise(ParseTreeNode fnct, Scope param_scope)
{
object result = null;
//func_name( param_list ) ;
if (fnct.ChildNodes.Count == 2)
{
String func_name = fnct.ChildNodes[0].FindTokenAndGetText();
ParseTreeNode pars = fnct.ChildNodes[1];
int parSize = pars.ChildNodes.Count;
if (func_name.Equals("DibujarAST") && parSize == 1 && ProgramBuiltIns.DrawAST(pars))
{
return(null);
}
if (func_name.Equals("DibujarEXP") && parSize == 1 && ProgramBuiltIns.DrawEXP(pars))
{
return(null);
}
List <Parameter> parameters = CreateParams(pars);
if (func_name.Equals("Mostrar") && parSize >= 1 && parameters[0].Type == ParameterType.String)
{
ProgramBuiltIns.Log(pars, param_scope, fnct);
}
else
{
//Si se encuentra la funcion, los parametros son agregados a ella adentro de la funcion
ScopeMember funct = GetFunction(func_name, parameters);
if (funct != null)
{
Program.Uncertainty = funct.Uncertainty;
Program.ImagePath = funct.ImagePath;
result = funct.Raise();
//check result validity
if (result == null && funct.Type != "Vacio")
{
Logger.AddError(fnct, "No se devolvio ningun valor de la funcion [" + funct.Name + "] de tipo [" + funct.Type + "].");
}
}
else
{
Logger.AddError(fnct, string.Format("No se encontró la función [{0}].", func_name));
}
}
}
return(result);
}
/// <summary>
/// Agregar variable
/// </summary>
/// <param name="type"></param>
/// <param name="name"></param>
/// <param name="value"></param>
public void AddVar(string type, string name, object value)
{
if (!ExistInCurrentScope(name))
{
ScopeMember var = new ScopeMember(type, name, value);
Vars.Add(var);
}
else
{
Logger.AddWarning(string.Format("Variable [{0} {1} = {2}] declarada anteriormente. No se modifico el valor inicial.", type, name, value));
}
}
/// <summary>
/// Obtiene la variable, buscándola en todos los ambitos que hay
/// </summary>
/// <param name="var_name"></param>
/// <returns></returns>
internal ScopeMember GetVar(string var_name)
{
var scope = this;
do
{
ScopeMember val = scope.GetVarInCurrentScope(var_name);
if (val != null)
{
return(val);
}
scope = scope.Parent;
}while (scope != null);
return(Program.Global.GetVarInCurrentScope(var_name));
}
/// <summary>
/// Asigna un valor a una variable ya existente
/// </summary>
/// <param name="node"></param>
internal void AsignVar(ParseTreeNode node)
{
if (node.ChildNodes.Count == 2)
{
string name = node.ChildNodes[0].FindTokenAndGetText();
ScopeMember member = GetVar(name);
if (member != null && member.IsVar)
{
member.Value = Solve(node.ChildNodes[1]);
}
}
else
{
Logger.AddError(node, "Variable no encontrada. ¿Esta seguro que la inicializó?");
}
}
/// <summary>
/// Agrega una funcion al scope
/// </summary>
/// <param name="funct"></param>
internal void AddFunct(ScopeMember funct)
{
Functions.Add(funct);
}
