*modules*

∗modules∗ Variable

Value Type:

a list of strings.

Initial Value:

implementation-dependent.

Description:

The value of *modules* is a list of names of the modules that have been loaded into the current Lisp image.

Affected By:

provide

See Also:

provide, require

Notes:

The variable *modules* is deprecated.

provide, require

Expanded Reference: *modules*

Note: *modules* is deprecated along with provide and require.

Inspecting loaded modules

*modules* holds a list of strings naming modules that have been loaded into the current Lisp image.

(listp *modules*)
=> T

;; All elements are strings
(every #'stringp *modules*)
=> T

Modified by provide

The provide function adds a module name to *modules*.

(provide "MY-TEST-MODULE")

(member "MY-TEST-MODULE" *modules* :test #'string=)
;; => ("MY-TEST-MODULE" ...)  ; implementation-dependent

Checked by require

The require function consults *modules* to determine whether a module needs to be loaded.

(provide "ALREADY-LOADED")
;; require sees it in *modules* and does nothing
(require "ALREADY-LOADED")
;; => NIL  ; implementation-dependent