On 07/02/2016 9:15 AM, peter dalgaard wrote:

On 07 Feb 2016, at 14:46 , Duncan Murdoch <murdoch.dun...@gmail.com> wrot8[e:

[snippage]

but in fact, this doesn't work:

getValue(fn)[[1]] <- 3
Error in getValue(fn)[[1]] <- 3 : could not find function "getValue"

I suspect this is a parser problem.

Umm, no...

The canonical semantics are that

foo(x)[[....]] <- bar

is internally converted to

*tmp* <- foo(x)
*tmp*[[....]] <- bar
x <- `foo<-`(x, *tmp*)

so both foo() and `foo<-` are required.


Yes, you're right.  I need more sleep.

Duncan Murdoch

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