22.4.15.1 Checking Whether to Stop

Whenever Edebug is entered just to think about whether to take some action, it needs to save and restore certain data.

• max-lisp-eval-depth and max-specpdl-size are both incremented one time to reduce Edebug’s impact on the stack. You could, however, still run out of stack space when using Edebug.
• The state of keyboard macro execution is saved and restored. While Edebug is active, executing-macro is bound to edebug-continue-kbd-macro.