[Swig-devel] [ swig-Bugs-3478923 ] overload dispatch is broken for "$" operator

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Bugs item #3478923, was opened at 2012-01-24 08:11
Message generated for change (Tracker Item Submitted) made by rmday1
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Category: r
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Robert Day (rmday1)
Assigned to: Joseph Wang (drjoe)
Summary: overload dispatch is broken for "$" operator

Initial Comment:
For a simple class like Base (in the attached Base.h), the following R calls are fine:

> b <- Base()
> Base_method(b)
[1] 42
> Base_overloaded_method(b)
[1] 42
> Base_overloaded_method(b, 43)
NULL
> Base_overloaded_method(b)
[1] 43
> b$method()
[1] 43

But these are broken:

> b$overloaded_method()
Error in mapply(class, list(...)) : '...' used in an incorrect context
3: b$overloaded_method()
2: mapply(class, list(...))
1: function ()
   {
       traceback(tail(sapply(sys.calls(), deparse), 100))
       if (!interactive())
           q(save = "no", status = 1)
   }()
> b$overloaded_method(42)
Error in b$overloaded_method(42) : could not find function "f"
2: b$overloaded_method(42)
1: function ()
   {
       traceback(tail(sapply(sys.calls(), deparse), 100))
       if (!interactive())
           q(save = "no", status = 1)
   }()


> R --version
R version 2.14.0 (2011-10-31)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i686-pc-linux-gnu (32-bit)

> swig -version
SWIG Version 2.0.4
Compiled with g++ [i686-pc-linux-gnu]
Configured options: +pcre


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