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* lisp/emacs-lisp/macroexp.el (macroexp-file-name): New function.

Yes, finally: a function that tells you the name of the file where
the code is located.  Finding this name is non-trivial in practice,
as evidenced by the "4 shift/reduce conflicts" warning when compiling
CEDET's python.el, because its `wisent-source` got it wrong in that
case, thinking the grammar came from `python.el` instead of
`python-wy.el`.

While at it, also made `macroexp-compiling-p` public, since it's
useful at various places.

(macroexp-compiling-p): Rename from `macroexp--compiling-p`.

* lisp/emacs-lisp/bytecomp.el (byte-compile-close-variables):
Bind `load-file-name` to nil so we can distinguish a load that calls
the byte compiler from a byte compilation which causes a load.

* lisp/cedet/semantic/wisent/python.el (wisent-python--expected-conflicts):
Remove; it was just a workaround.
* lisp/subr.el (do-after-load-evaluation): Avoid `byte-compile--` vars.
* lisp/cedet/semantic/fw.el (semantic-alias-obsolete):
Use `macroexp-compiling-p` and `macroexp-file-name`.
* lisp/cedet/semantic/wisent/comp.el (wisent-source): Use `macroexp-file-name`
(wisent-total-conflicts): Tighten regexp.
* lisp/emacs-lisp/cl-lib.el (cl--compiling-file): Delete function
and variable.  Use `macroexp-compiling-p` instead.
* lisp/progmodes/flymake.el (flymake-log):
* lisp/emacs-lisp/package.el (package-get-version):
* lisp/emacs-lisp/ert-x.el (ert-resource-directory):
Use `macroexp-file-name`.
This commit is contained in:
Stefan Monnier 2021-02-24 13:52:45 -05:00
parent 654cb8e6b7
commit 2766f9fdb9
13 changed files with 55 additions and 60 deletions

View file

@ -232,13 +232,8 @@ one value.
;;; Declarations.
(defvar cl--compiling-file nil)
(defun cl--compiling-file ()
(or cl--compiling-file
(and (boundp 'byte-compile--outbuffer)
(bufferp (symbol-value 'byte-compile--outbuffer))
(equal (buffer-name (symbol-value 'byte-compile--outbuffer))
" *Compiler Output*"))))
(define-obsolete-function-alias 'cl--compiling-file
#'macroexp-compiling-p "28.1")
(defvar cl--proclaims-deferred nil)
@ -253,7 +248,7 @@ one value.
Puts `(cl-eval-when (compile load eval) ...)' around the declarations
so that they are registered at compile-time as well as run-time."
(let ((body (mapcar (lambda (x) `(cl-proclaim ',x)) specs)))
(if (cl--compiling-file) `(cl-eval-when (compile load eval) ,@body)
(if (macroexp-compiling-p) `(cl-eval-when (compile load eval) ,@body)
`(progn ,@body)))) ; Avoid loading cl-macs.el for cl-eval-when.