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debug and backtrace
From: |
Mike Gran |
Subject: |
debug and backtrace |
Date: |
Fri, 11 Sep 2009 04:55:44 -0700 |
Hi-
With the default behavior of 1.9.x, REPL debug and backtrace are broken.
Consider the following example run using 'guile --debug' and
(debug-enable 'backtrace).
With 1.8.5
--------------------------------------------------------
guile> (string-append "abc" (string-append "def" (string-append (error
"blammo"))))
Backtrace:
In standard input:
2: 0* [string-append "abc" ...
2: 1* [string-append "def" ...
2: 2* [string-append ...
2: 3* [error "blammo"]
standard input:2:58: In procedure error in expression (error "blammo"):
standard input:2:58: blammo
ABORT: (misc-error)
guile> (debug)
This is the Guile debugger -- for help, type `help'.
There are 4 frames on the stack.
Frame 3 at standard input:2:58
[error "blammo"]
debug> up
Frame 2 at standard input:2:43
[string-append ...
debug> up
Frame 1 at standard input:2:22
[string-append "def" ...
debug> up
Frame 0 at standard input:2:1
[string-append "abc" ...
--------------------------------------------------------
With 1.9.x
--------------------------------------------------------
scheme@(guile-user)> (string-append "abc" (string-append
"def" (string-append (error "blammo"))))
Backtrace:
In unknown file:
?: 0* [#<vm a0389b8> #<program a272300 at standard input:1:0 ()>]
?: 1* [error "blammo"]
ERROR: In procedure error:
ERROR: blammo
scheme@(guile-user)> (debug)
This is the Guile debugger -- for help, type `help'.
There are 2 frames on the stack.
Frame 1 at unknown source location
[error "blammo"]
debug> up
Frame 0 at unknown source location
[#<vm a0389b8> #<program a272300 at standard input:1:0 ()>]
--------------------------------------------------------
Thanks,
Mike
- debug and backtrace,
Mike Gran <=