Add way to test [, [[ and $

[filipsch]

Need a function to test the operators that extract stuff from data structures

[machow]

Just a note, operators like this are just normal functions, and can be referred to using backticks..

`<-`('a', 1)
a  # prints 1

`if`(a == 1, print('one'), print('boo')) # prints one

# indexing
b = 1:10
`[`(b, 2)

# same thing but using get
get("[")(b, 2)

@filipsch any sense for how much modifying test_function would need to handle this? If it's using anything like get("[")(b, 2), then it should be pretty smooth sailing...

[filipsch]

@machow I'm afraid that getParseData() doesn't see them as 'just functions', but I'd have to dive more deeply to answer your question in a satisfying way.

[machow]

This would be very doable with a refactor to use the as.expression "ast". Would probably require major changes and a week or two of work, though.