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Unlist a list of length one containing a named list.

Source: R/config_process_common.R
dot-get_dict_param.Rd

This is used for some YAML parameters which need to be defined this way, otherwise they would get overwritten by default values. Example of such parameter:

PARAM:
  - var_1:
      a: 1
    var_2:
      b: 2

Usage

.get_dict_param(
  param,
  not_empty = FALSE,
  empty_to_null = TRUE,
  name = deparse(substitute(param))
)

Arguments

param

A list of length one containing a named list.

not_empty

A logical scalar: if TRUE, throw error when param is NULL or empty list.

empty_to_null

A logical scalar: if TRUE and param is empty list, return NULL.

name

A passed param symbol, used for error messages.

Value

A named list, or NULL if empty_to_null is TRUE and the conditions are met.