record-source-file

Function

Package: excl

Arguments: fspec &key type

This function is used to record the location of built-in and user defined objects in source files.

The built-in types and the forms that use them are:

Type	Used with these forms:
`:operator`	defun, defmacro
`:variable`	defconstant, defparameter, defvar
`:special-declaration`	defconstant, defparameter, defvar
`:compiler-macro`	define-compiler-macro
`:setf-method`	defsetf
`:type`	defclass, defstruct, deftype

For example, putting the following form into a file, compile and loading it: (defun foo (x) ...) will cause foo to be recorded as an :operator in the file in which it was defined.

Redefinition warnings occur when a file is be loaded and it defines an object of an already existing source file recording type. Objects of different types, say an :operator and :type, do not cause redefinition warnings.

Users can extend this facility to understand objects they define. The most usual case is a macro that defines a high-level object, such as:

(defmacro def-frob (name fram)
  `(progn
     (record-source-file ',name :type :frob)
     (def-frob-1 ',name ,fram)))

Then, if the following form is put into /a/b/foo.cl:

(def-frob akbar 'fez)

and is then compiled and loaded, (source-file 'akbar :frob) will return a pathname pointing to /a/b/foo.cl.

See also source-file-recording.htm for general information on source file recording in Allegro CL.

The documentation is described in introduction.htm and the index is in index.htm.

Created 2000.10.5.