NumExpr GenerateImpl(int depthFrom, int maxDepth, int currDepth)
{
NumExpr expr;
var caseNum = _rnd.Next(1, 4);
while ((currDepth < depthFrom && caseNum < 3) ||
(currDepth >= maxDepth && caseNum > 2))
{
caseNum = _rnd.Next(1, 4);
}
switch (caseNum)
{
case 1: expr = NumExpr.Const(_rnd.Next(1, 100)); break;
case 2: expr = NumExpr.Variable(_varNames[_rnd.Next(0, _varNames.Length)] + _rnd.Next(0, 10)); break;
case 3:
{
expr = NumExpr.BinOp(
this.GenerateImpl(depthFrom, maxDepth, currDepth + 1),
this.GenerateImpl(depthFrom, maxDepth, currDepth + 1),
(NumOp)_rnd.Next(0, 3)
);
}
break;
default:
throw new NotImplementedException();
}
return(expr);
}
