internal UnaryExpression GenUnaryExpression(IScope scope, int maxDepth)
{
UnaryExpression ue = new UnaryExpression();
UnaryOperator op = _options.UnaryOperators.ChooseRandom(_rand);
ue.Operator = op;
Expression expr = GenExpression(scope, maxDepth);
if (op.Has(OperatorRequirement.NumericOnly) && !expr.IsNumeric)
{
expr = new NumericExpression(scope, expr, GenNumericLiteral());
}
if (op.Has(OperatorRequirement.RhsNonnegative))
{
expr = new NonNegativeExpression(scope, expr);
}
if (op.Has(OperatorRequirement.RhsNonzero))
{
expr = new NonZeroExpression(scope, expr);
}
if (op.Has(OperatorRequirement.LimitedPrecision))
{
scope.Require(GlobalFunction.PREC);
}
ue.Value = expr;
return(ue);
}