[Rd] debugger() fails if "..." in function arguments

[Charles Roosen]

Dear all,

I'm having a problem with debugger() in both R 2.8.0 and R 2.12.0.
Probably also versions in-between.  

I don't see it logged in the bug database, but it's hard for me to
imagine that no-one else has encountered it.  So my question is whether
it's a known problem with a workaround, or do I log it as a new problem?

The situation is that if I use "options(error=dump.frames)" and then use
"debugger()", it fails if there's "..." in the function arguments.
Repro and version info below.

Thanks,
Charlie Roosen

> myFunc <- function(a,b,...) {d <- a+b; stop("")}
> options(error=dump.frames)
> myFunc(1,2)
Error in myFunc(1, 2) : 

> debugger()
Message:  Error in myFunc(1, 2) : 
Available environments had calls:
1: myFunc(1, 2)
2: stop("")

Enter an environment number, or 0 to exit  Selection: 1
Error in get(.obj, envir = dump[[.selection]]) : 
  argument "..." is missing, with no default


> version
               _                            
platform       i386-pc-mingw32              
arch           i386                         
os             mingw32                      
system         i386, mingw32                
status                                      
major          2                            
minor          12.0                         
year           2010                         
month          10                           
day            15                           
svn rev        53317                        
language       R                            
version.string R version 2.12.0 (2010-10-15)


Charles Roosen, PhD
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