private ValueExpression EvaluateUnaryExpression(IExpression expr)
{
UnaryExpression unaryExpr = (UnaryExpression)expr;
ValueExpression valueExpr = Visit(unaryExpr.Operand);
double result = _context.EvaluateUnary(unaryExpr.OperatorName, valueExpr.Value);
return(new ValueExpression(result));
}
private IExpression EvaluateUnaryExpression(IExpression expr)
{
UnaryExpression unaryExpr = (UnaryExpression)expr;
IExpression operandExpr = Visit(unaryExpr.Operand);
if (operandExpr is ValueExpression valueExpr)
{
double result = _context.EvaluateUnary(unaryExpr.OperatorName, valueExpr.Value);
return(new ValueExpression(result));
}
return(new UnaryExpression(unaryExpr.OperatorName, operandExpr));
}