internal Expression Generate(Expression parent, int level, Random rand)
{
Expression ret = null;
if (level == 0)
{
if (!g)
{
ret = new VariableExpression();
g = true;
}
else
{
ret = new ConstantExpression();
ret.Generate(this, level, rand);
}
}
else
{
ret = (Expression)Activator.CreateInstance(ExpressionTypes[rand.Next(0, ExpressionTypes.Length)]);
ret.Generate(this, level - 1, rand);
}
ret.Parent = parent;
return(ret);
}
internal Expression Generate(Expression parent, int level, Random rand)
{
Expression ret = null;
if (level == 0)
{
if (!g)
{
ret = new VariableExpression();
g = true;
}
else
{
// Generate a new random number (constant).
ret = new ConstantExpression();
ret.Generate(this, level, rand);
}
}
else
{
// Instead generate a new expression.
// This leads to multiple expressions in the same root expression.
ret = (Expression)Activator.CreateInstance(ExpressionTypes[rand.Next(0, ExpressionTypes.Length)]);
ret.Generate(this, level - 1, rand);
}
ret.Parent = parent;
return(ret);
}
