.called_by {assertHE} | R Documentation |
Called By
Description
Identify functions called by a given function within a specified project folder
Usage
.called_by(fname, all_functions, pkg_env)
Arguments
fname |
The name of the target function. |
all_functions |
A character vector of all function names in the project. |
pkg_env |
The package environment where the functions are defined (e.g. global). |
Details
The function identifies functions called by the target function fname
within the specified
package environment pkg_env
. It searches for dependencies within the literal code of the
function body and returns a dataframe with two columns ("from" and "to") representing the
dependencies. If no dependencies are found, it returns a dataframe with "from" as the target
function and "to" as NA.
Note: This function may potentially miss calls if they are in attributes of the closure. For example when function is defined within another function, capturing the environment of the outer function.
Value
A dataframe with two columns ("from" and "to") representing the dependencies of the target function. Returns NA if no dependencies are found.