get_dependencies: Get the Dependencies of a Module.

In aclemen1/modulr: A Dependency Injection Framework for R

Get the Dependencies of a Module.

Description

Get the list of declared dependencies of a module.

Usage

get_dependencies(name = .Last.name, load = FALSE)

Arguments

name	A string (character vector of lenght one). A module name can contain letters, figures and some special characters, namely _, -, and /. The latter is a namespace separator. Names containing /mock/, /mocks/, /test/, /tests/, /example/, or /examples/ have a special meaning related to code testing and examples. The name "modulr" corresponds to a special module and is therefore reserved.
load	A flag. Should an undefined module be implicitely loaded?

Value

A list of dependencies.

Warning

It is considered a very bad practice to define, touch, undefine, load, make, reset, or perform any other operation from within a module definition that may alterate the internal state of modulr.

See Also

define, make, reset, and root_config.

Examples

reset()
define("foo", NULL, function() "foo")
define("bar", list(foo = "foo"), function(foo) paste0(foo, "bar"))
define("bar/mock", get_dependencies("bar"), function(foo) paste0(foo, "baz"))
make("bar/mock")

reset()
tmp_dir <- tempfile("modulr_")
dir.create(tmp_dir)
cat('define("foo", NULL, function() "Hello")',
 file = file.path(tmp_dir, "foo.R"))
cat('define("bar", list(foo = "foo"), function() paste(foo, "World!"))',
 file = file.path(tmp_dir, "bar.R"))
root_config$set(tmp_dir)
## Not run: get_dependencies("bar", load = FALSE)
get_dependencies("bar", load = TRUE)
unlink(tmp_dir, recursive = TRUE)

aclemen1/modulr documentation built on Oct. 2, 2024, 7:18 a.m.