Change how dataframes are named/labelled/accessed?

[DesiQuintans]

I currently take a dataframe by finding an object with that name, rather than passing the object itself it. Works fine for most cases:

> siftr::sift(iris)
ℹ Building the dictionary for `iris`...
✔ Dictionary was built in 0.02 secs.

ℹ `iris` has 5 columns:
  Sepal.Length, Sepal.Width, Petal.Length, Petal.Width, Species.
ℹ Use siftr::lastsift() to view the full dictionary.

But doesn't work for more complicated accesses:

> siftr::sift(iris[1,])
Error in eval(as.symbol(df_name)) : object 'iris[1, ]' not found

Is this worth it? I think I did it this way so that I could give dictionaries and hashes the object name in the environment that stores them all. Can I use address location instead, or something?