No intended change. The trace method was not updated when reference
class generators became functions. Should be fixed now in r-devel and
3.0.0 patched (rev 62699).
Thanks for the catch.
John
On 4/29/13 11:30 PM, Kohske Takahashi wrote:
Hi
The final line of the example in ?setRefClass induces an error:
## debugging all objects from class mEdit in method $undo()
mEdit$trace(undo, browser)
Error in envRefInferField(x, what, getClass(class(x)), selfEnv) :
'undo' is not a valid field or method name for reference class
"refGeneratorSlot"
$trace tries to embed the trace in the generator object (instead of
the generated object).
Has this functionality been removed?
best,
kohske
--
Kohske Takahashi <takahashi.koh...@gmail.com>
Assistant Professor,
Research Center for Advanced Science and Technology,
The University of Tokyo, Japan.
http://www.fennel.rcast.u-tokyo.ac.jp/profilee_ktakahashi.html
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