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expr_evaluate_concat() is overloaded, it deals with two cases:
#1 set key and data definitions, this case uses the special
dynamically created concatenation datatype which is taken
from the context.
#2 set elements, this case iterates over the set key and data
expressions that are components of the concatenation tuple,
to fetch the corresponding datatype.
Add a new function to deal with case #1 specifically.
This patch is implicitly fixing up map that include arbitrary
concatenations. This is failing with a spurious error report such as:
# cat bug.nft
table x {
map test {
type ipv4_addr . inet_proto . inet_service : ipv4_addr . inet_service
}
}
# nft -f bug.nft
bug.nft:3:48-71: Error: datatype mismatch, expected concatenation of (IPv4 address, Internet protocol, internet network service), expression has type concatenation of (IPv4 address, internet network service)
type ipv4_addr . inet_proto . inet_service : ipv4_addr . inet_service
^^^^^^^^^^^^^^^^^^^^^^^^
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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