public override EvaluationResult Evaluate(Env env)
{
string value = string.Empty;
if (initialization.GetType().BaseType == typeof(BaseBinaryExpression))
{
initialization.Evaluate(env);
value = Enviroment2.ReturnCurrentTempVariable();
}
else if (initialization.GetType().BaseType == typeof(BaseNumberExpression))
{
BaseNumberExpression numberExpression = initialization as BaseNumberExpression;
value = numberExpression.GetNumber();
}
else
{
BaseIdentifierExpression identifierExpression = initialization as BaseIdentifierExpression;
value = identifierExpression.GetIdentifierSymbol();
}
var symbol = identifier.GetIdentifierSymbol();
env.DefineVariable(symbol);
env.AssignValue(symbol, value);
Enviroment2.QTable.Add(new Quadruple("=", value, null, symbol));
return(null);
}
private string ObtenerArgumentoTempUno(Env env)
{
string temp = string.Empty;
if (Condition.Left.GetType().BaseType == typeof(BaseBinaryExpression))
{
Condition.Left.Evaluate(env);
temp = Enviroment2.ReturnCurrentTempVariable();
}
else if (Condition.Left.GetType().BaseType == typeof(BaseNumberExpression))
{
BaseNumberExpression numberExpression = Condition.Left as BaseNumberExpression;
temp = numberExpression.GetNumber();
}
else
{
BaseIdentifierExpression identifier = Condition.Left as BaseIdentifierExpression;
temp = identifier.GetIdentifierSymbol();
}
return(temp);
}
public override EvaluationResult Evaluate(Env env)
{
string argumento1Temp, argumento2Temp;
if (Condition.Left.GetType().BaseType == typeof(BaseBinaryExpression))
{
Condition.Left.Evaluate(env);
argumento1Temp = Enviroment2.ReturnCurrentTempVariable();
}
else if (Condition.Left.GetType().BaseType == typeof(BaseNumberExpression))
{
BaseNumberExpression numberExpression = Condition.Left as BaseNumberExpression;
argumento1Temp = numberExpression.GetNumber();
}
else
{
BaseIdentifierExpression identifier = Condition.Left as BaseIdentifierExpression;
argumento1Temp = identifier.GetIdentifierSymbol();
}
//optener argumento 2
if (Condition.Right.GetType().BaseType == typeof(BaseBinaryExpression))
{
Condition.Right.Evaluate(env);
argumento2Temp = Enviroment2.ReturnCurrentTempVariable();
}
else if (Condition.Right.GetType().BaseType == typeof(BaseNumberExpression))
{
BaseNumberExpression numberExpression = Condition.Right as BaseNumberExpression;
argumento2Temp = numberExpression.GetNumber();
}
else
{
BaseIdentifierExpression identifier = Condition.Right as BaseIdentifierExpression;
argumento2Temp = identifier.GetIdentifierSymbol();
}
//crear ontrue para generar siguiente instruccion
string Operator = "if" + Condition.RELOP;
Enviroment2.QTable.Add(new Quadruple(Operator, argumento1Temp, argumento2Temp, (Enviroment2.QTable.Count + 2).ToString()));
Enviroment2.QTable.Add(new Quadruple("goto", null, null, null));
int indexOfGoto = Enviroment2.QTable.Count - 1; // guardar la posicion del goto (else,final);
// generar ontrue
OnTrue.Evaluate(env);
if (OnFalse == null)
{
Enviroment2.QTable[indexOfGoto].result = (Enviroment2.QTable.Count.ToString());// + 1).ToString()
}
if (OnFalse != null)
{
Enviroment2.QTable[indexOfGoto].result = (Enviroment2.QTable.Count + 1).ToString();// + 1).ToString()
Enviroment2.QTable.Add(new Quadruple("goto", null, null, null));
int indexOfGoto2 = Enviroment2.QTable.Count - 1;
OnFalse.Evaluate(env);
Enviroment2.QTable[indexOfGoto2].result = Enviroment2.QTable.Count.ToString();
}
return(null);
}