From: R. Bernstein <rocky@pa...> - 2007-11-29 11:26:40
Recently an annotation mode was added in pydb and other similar
debuggers - in particular the one for Ruby called ruby-debug.
One of the pieces of information that is "annotated" is the local
variables. In GNU Emacs, each piece of annotated information is put in
its own buffer.
It was felt by a ruby-debug user that it would be more helpful if in
addition to showing local variables, instance variables (of @self)
were also shown. In Ruby, instance variables start with @ while local
variables don't; so they are visually distinct. Likewise class
variables start with @@ and constants start with a capital letter.
Currently the way this is handled is that an "info variables" debugger
command was added; this shows a combination of
locals/instance_variables. A "variables" buffer then shows this in a
separate window/frame. (Note that in gdb and pydb there is buffer is
called a "locals" buffer. In Ruby when the contents of that buffer
changed from "locals" to "locals + instance variables" the name of
that buffer changed to "variables".)
At any rate I wonder if this observation might also applicable for
Python as well. However in Python, class, constant and and instance variables
are not distinct from local variables.
So there are a couple parts to this question. First what should be
annotated? And second, what should be shown in an Emacs buffer. For
example, it is possible for example to annotate separately class, and
local variables, but show these combined in a single buffer. Since
each variable is not visually distinct there might be a separator line
in the buffer or maybe some mechanism to make them visually
distinct. Or there could be more windows/frames. Or there might be a
setting to indicate what variables get shown in a "variable" windows.
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