[Rd] Why does slot<- duplicate its argument?

[Renaud Gaujoux]

Hi,

is there a reason why `slot<-` should duplicate its argument?
I am under R 2.12.1.

Thank you,
Renaud

For example:

setClass('A', representation(data='matrix'))
a <- new('A')
x <- matrix(1,2,3)
tracemem(x)
slot(a, 'data') <- x


 

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