public override void VisitFunction(FunctionExpression functionExpression)
{
if (functionExpression.Function == Operators.Plus)
{
Visit(functionExpression[0]);
}
else if (functionExpression.Function == Operators.Negate)
{
SumAggregator aggregator = new SumAggregator();
aggregator.Visit(functionExpression[0]);
Append(aggregator, true);
}
else if (functionExpression.Function == Operators.Add)
{
foreach (Expression argument in functionExpression)
{
Visit(argument);
}
}
else if (functionExpression.Function == Operators.Subtract)
{
Visit(functionExpression[0]);
SumAggregator aggregator = new SumAggregator();
aggregator.Visit(functionExpression[1]);
Append(aggregator, true);
}
else if (functionExpression.Function == Operators.Multiply || functionExpression.Function == Operators.Divide)
{
ProductAggregator aggregator = new ProductAggregator();
aggregator.Visit(functionExpression);
Expression expression = aggregator.ToExpression();
FunctionExpression functionExpression1 = expression as FunctionExpression;
if (functionExpression1 != null && (functionExpression1.Function == Operators.Multiply || functionExpression1.Function == Operators.Divide))
{
AddExpression(expression);
}
else
{
Visit(expression);
}
}
else
{
AddExpression(functionExpression);
}
}
public override void VisitFunction(FunctionExpression functionExpression)
{
if (functionExpression.Function == Operators.Plus)
{
Visit(functionExpression[0].Simplify());
}
else if (functionExpression.Function == Operators.Negate)
{
_sign = !_sign;
Visit(functionExpression[0].Simplify());
}
else if (functionExpression.Function == Operators.Multiply)
{
foreach (Expression factor in functionExpression)
{
Visit(factor.Simplify());
}
}
else if (functionExpression.Function == Operators.Divide)
{
Visit(functionExpression[0].Simplify());
ProductAggregator aggregator = new ProductAggregator();
aggregator.Visit(functionExpression[1].Simplify());
_sign ^= aggregator._sign;
_value /= aggregator._value;
Visit(aggregator._divider);
foreach (Expression factor in aggregator._factors)
{
_divider *= factor;
}
}
else
{
_factors = _factors.Add(functionExpression.Function.
Apply(functionExpression.Select(arg => arg.Simplify())));
}
}
