[BUGZILLA #17339] `body<-` does not preserve attributes

[MichaelChirico]

body<- appears to not preserve attributes set on functions. Sometimes I use attributes on functions, eg for memoization, etc. Here is a small test case:

f <- structure(function(x) x+1, foo='bar')
attributes(f)

$srcref function(x) x+1

$foo [1] "bar"

body(f) <- body(mean)
attributes(f)

NULL

I would expect changing the body to not affect the attributes at all.

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METADATA

• Bug author - Neal Fultz
• Creation time - 2017-09-12 18:40:03 UTC
• Bugzilla link
• Status - UNCONFIRMED
• Alias - None
• Component - Language
• Version - R 3.3.*
• Hardware - All Linux
• Importance - P5 normal
• Assignee - R-core
• URL -

[github-actions[bot]]

NA

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METADATA

• Comment author - Sebastian Meyer
• Timestamp - 2020-07-29 16:07:29 UTC