diff options
| -rw-r--r-- | doc/lispref/lists.texi | 1 | ||||
| -rw-r--r-- | doc/lispref/minibuf.texi | 1 | ||||
| -rw-r--r-- | lisp/subr.el | 4 |
3 files changed, 5 insertions, 1 deletions
diff --git a/doc/lispref/lists.texi b/doc/lispref/lists.texi index ce0d9a3c922..27fa5385e35 100644 --- a/doc/lispref/lists.texi +++ b/doc/lispref/lists.texi @@ -832,6 +832,7 @@ and unlike @code{setq}. Quote the argument yourself if necessary. The ordering information is stored in a hash table on @var{symbol}'s @code{list-order} property. +@var{symbol} cannot refer to a lexical variable. @end defun Here's a scenario showing how to use @code{add-to-ordered-list}: diff --git a/doc/lispref/minibuf.texi b/doc/lispref/minibuf.texi index ab806a9055d..1266cf8ef65 100644 --- a/doc/lispref/minibuf.texi +++ b/doc/lispref/minibuf.texi @@ -572,6 +572,7 @@ and returns the updated history list. It limits the list length to the value of @var{maxelt} (if non-@code{nil}) or @code{history-length} (described below). The possible values of @var{maxelt} have the same meaning as the values of @code{history-length}. +@var{history-var} cannot refer to a lexical variable. Normally, @code{add-to-history} removes duplicate members from the history list if @code{history-delete-duplicates} is non-@code{nil}. diff --git a/lisp/subr.el b/lisp/subr.el index 05fb82321e5..c1c4cad18d1 100644 --- a/lisp/subr.el +++ b/lisp/subr.el @@ -1935,6 +1935,7 @@ of ELEMENT if it has one. The list order for each element is stored in LIST-VAR's `list-order' property. +LIST-VAR cannot refer to a lexical variable. The return value is the new value of LIST-VAR." (let ((ordering (get list-var 'list-order))) @@ -1963,7 +1964,8 @@ variable. The possible values of maximum length have the same meaning as the values of `history-length'. Remove duplicates of NEWELT if `history-delete-duplicates' is non-nil. If optional fourth arg KEEP-ALL is non-nil, add NEWELT to history even -if it is empty or duplicates the most recent entry in the history." +if it is empty or duplicates the most recent entry in the history. +HISTORY-VAR cannot refer to a lexical variable." (unless maxelt (setq maxelt (or (get history-var 'history-length) history-length))) |