find_references {future} | R Documentation |
Get first or all references of an R object
Assert that there are no references among the identified globals
find_references(x, first_only = FALSE) assert_no_references(x, action = c("error", "warning", "message", "string"))
x |
The R object to be checked. |
first_only |
If 'TRUE', only the first reference is returned, otherwise all references. |
action |
Type of action to take if a reference is found. |
'find_references()' returns a list of one or more references identified.
If a reference is detected, an informative error, warning, message, or a character string is produced, otherwise 'NULL' is returned invisibly.