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[Emacs-diffs] master 78f841d: Change edebug-max-depth from defconst to d
From: |
Eli Zaretskii |
Subject: |
[Emacs-diffs] master 78f841d: Change edebug-max-depth from defconst to defcustom |
Date: |
Sat, 4 Feb 2017 10:58:13 +0000 (UTC) |
branch: master
commit 78f841d6db77f8b72d6d7d221af26efb956ab6cb
Author: Gemini Lasswell <address@hidden>
Commit: Eli Zaretskii <address@hidden>
Change edebug-max-depth from defconst to defcustom
* lisp/emacs-lisp/edebug.el (edebug-max-depth): Add defcustom.
(Bug#24713)
* etc/NEWS: Mention edebug-max-depth.
* doc/lispref/edebug.texi (Checking Whether to Stop): Mention
edebug-max-depth and index it. Add cross-references for
max-lisp-eval-depth and max-specpdl-size.
Co-authored-by: Eli Zaretskii <address@hidden>
---
doc/lispref/edebug.texi | 10 +++++++---
etc/NEWS | 5 +++++
lisp/emacs-lisp/edebug.el | 13 ++++++++++++-
3 files changed, 24 insertions(+), 4 deletions(-)
diff --git a/doc/lispref/edebug.texi b/doc/lispref/edebug.texi
index f6f73ea..da72c9b 100644
--- a/doc/lispref/edebug.texi
+++ b/doc/lispref/edebug.texi
@@ -979,9 +979,13 @@ program.
@itemize @bullet
@item
address@hidden and @code{max-specpdl-size} are both
-increased to reduce Edebug's impact on the stack. You could, however,
-still run out of stack space when using Edebug.
address@hidden edebug-max-depth
address@hidden (@pxref{Eval}) and @code{max-specpdl-size}
+(@pxref{Local Variables}) are both increased to reduce Edebug's impact
+on the stack. You could, however, still run out of stack space when
+using Edebug. You can also enlarge the value of
address@hidden if Edebug reaches the limit of recursion depth
+instrumenting code that contains very large quoted lists.
@item
The state of keyboard macro execution is saved and restored. While
diff --git a/etc/NEWS b/etc/NEWS
index 270f880..cbf2b70 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -464,6 +464,11 @@ viewing HTML files and the like.
breakpoint (e.g. with "f" and "o") by customizing the new option
'edebug-sit-on-break'.
++++
+*** New customizable option 'edebug-max-depth'
+This allows to enlarge the maximum recursion depth when instrumenting
+code.
+
** Eshell
*** 'eshell-input-filter's value is now a named function
diff --git a/lisp/emacs-lisp/edebug.el b/lisp/emacs-lisp/edebug.el
index db54d1e..ec0f08d 100644
--- a/lisp/emacs-lisp/edebug.el
+++ b/lisp/emacs-lisp/edebug.el
@@ -112,6 +112,18 @@ and some not, use `def-edebug-spec' to specify an
`edebug-form-spec'."
:type 'boolean
:group 'edebug)
+(defcustom edebug-max-depth 150
+ "Maximum recursion depth when instrumenting code.
+This limit is intended to stop recursion if an Edebug specification
+contains an infinite loop. When Edebug is instrumenting code
+containing very large quoted lists, it may reach this limit and give
+the error message \"Too deep - perhaps infinite loop in spec?\".
+Make this limit larger to countermand that, but you may also need to
+increase `max-lisp-eval-depth' and `max-specpdl-size'."
+ :type 'integer
+ :group 'edebug
+ :version "26.1")
+
(defcustom edebug-save-windows t
"If non-nil, Edebug saves and restores the window configuration.
That takes some time, so if your program does not care what happens to
@@ -1452,7 +1464,6 @@ expressions; a `progn' form will be returned enclosing
these forms."
(defvar edebug-after-dotted-spec nil)
(defvar edebug-matching-depth 0) ;; initial value
-(defconst edebug-max-depth 150) ;; maximum number of matching recursions.
;;; Failure to match
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