[Rd] side-effect of calling functions via `::`

[S Ellison]

> -----Original Message-----
> From: R-devel [mailto:r-devel-bounces at r-project.org] On Behalf Of Martin Maechler
> ...
> >>>>> Lionel Henry <lionel at rstudio.com>
>     > A package should probably never register a S3 method unless it owns
>     > either the generic or the class.
> 
> I agree... (and typically it does "own" the class)

If that is true and a good general guide, is it worth adding something to that effect to 1.5.2 of "Writing R extensions"?
At present, nothing in 1.5.2 requires or recommends that a package using S3method owns either class or generic. 


S Ellison


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