diff options
Diffstat (limited to 'lisp/emacs-lisp/find-func.el')
| -rw-r--r-- | lisp/emacs-lisp/find-func.el | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lisp/emacs-lisp/find-func.el b/lisp/emacs-lisp/find-func.el index 5d504586323..41c940f1cec 100644 --- a/lisp/emacs-lisp/find-func.el +++ b/lisp/emacs-lisp/find-func.el @@ -205,6 +205,9 @@ TYPE should be nil to find a function, or `defvar' to find a variable." ;;;###autoload (defun find-function-search-for-symbol (symbol type library) "Search for SYMBOL's definition of type TYPE in LIBRARY. +Visit the library in a buffer, and return a cons cell (BUFFER . POSITION), +or just (BUFFER . nil) if the definition can't be found in the file. + If TYPE is nil, look for a function definition. Otherwise, TYPE specifies the kind of definition, and it is interpreted via `find-function-regexp-alist'. @@ -244,8 +247,7 @@ The search is done in the source for library LIBRARY." (progn (beginning-of-line) (cons (current-buffer) (point))) - (error "Cannot find definition of `%s' in library `%s'" - symbol library)))))))) + (cons (current-buffer) nil)))))))) ;;;###autoload (defun find-function-noselect (function) @@ -253,7 +255,8 @@ The search is done in the source for library LIBRARY." Finds the source file containing the definition of FUNCTION in a buffer and the point of the definition. The buffer is -not selected. +not selected. If the function definition can't be found in +the buffer, returns (BUFFER). If the file where FUNCTION is defined is not known, then it is searched for in `find-function-source-path' if non nil, otherwise @@ -335,7 +338,7 @@ Set mark before moving, if the buffer already existed." (when (memq new-buf orig-buffers) (push-mark orig-point)) (funcall switch-fn new-buf) - (goto-char new-point) + (when new-point (goto-char new-point)) (recenter find-function-recenter-line) (run-hooks 'find-function-after-hook)))) @@ -376,6 +379,7 @@ See `find-function' for more details." Finds the library containing the definition of VARIABLE in a buffer and the point of the definition. The buffer is not selected. +If the variable's definition can't be found in the buffer, return (BUFFER). The library where VARIABLE is defined is searched for in FILE or `find-function-source-path', if non nil, otherwise in `load-path'." @@ -421,6 +425,7 @@ See `find-variable' for more details." ;;;###autoload (defun find-definition-noselect (symbol type &optional file) "Return a pair `(BUFFER . POINT)' pointing to the definition of SYMBOL. +If the definition can't be found in the buffer, return (BUFFER). TYPE says what type of definition: nil for a function, `defvar' for a variable, `defface' for a face. This function does not switch to the buffer nor display it. |