*print-open-frames* Variable

Summary

Controls whether open frames are printed in debugger output.

Package

dbg

Initial Value

nil

Description

The variable *print-open-frames* is used by the debugger when it displays the stack frames. Open frames are made by the system and are normally not shown by the debugger. However if *print-open-frames* is set to t then the open frames are displayed. It is unlikely that you need to examine open frames: their use is connected with implementation details.

Examples

USER 52 > (setq dbg:*print-open-frames* t)

T 
USER 53 > (car 2)

Error: Cannot take CAR of 2  
 1 (abort) return to top loop level 0.

Type :c followed by a number to proceed

USER 54 : 1 > :b 3 
Open frame (5) 
Open frame (5) 
Call to CAR-FRAME  :        

Notes

*print-open-frames* is an extension to Common Lisp.