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Called By

Source: R/project_visualiser.R
dot-called_by.Rd

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).

Value

A dataframe with two columns ("from" and "to") representing the dependencies of the target function. Returns NA if no dependencies are found.

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.