Constructive options for class 'data.table' — opts

These options will be used on objects of class 'data.table'.

Usage

opts_data.table(
  constructor = c("data.table", "next", "list"),
  ...,
  selfref = FALSE
)

constructor: String. Name of the function used to construct the object, see Details section.
...: Should not be used. Forces passing arguments by name.
selfref: Boolean. Whether to include the .internal.selfref attribute. It's probably not useful, hence the default, waldo::compare() is used to assess the output fidelity and doesn't check it, but if you really need to generate code that builds an object identical() to the input you'll need to set this to TRUE.

An object of class <constructive_options/constructive_options_data.table>

Depending on constructor, we construct the object as follows:

"data.table" (default): Wrap the column definitions in a data.table() call.
"next" : Use the constructor for the next supported class. Call .class2() on the object to see in which order the methods will be tried.
"list" : Use list() and treat the class as a regular attribute.