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authorEelco Dolstra <eelco.dolstra@logicblox.com>2012-08-13T18·58-0400
committerEelco Dolstra <eelco.dolstra@logicblox.com>2012-08-13T18·58-0400
commit3e89ef597ce00dbf82a937aad9efab3c9c7b6dcf (patch)
tree60d4896f8c8b063ce7d2354fb357da9a2a13c0ba /Makefile.am
parent9c2d63084bd4f6a04210cd52b4fce054d248bc6b (diff)
Optimise concatenating a list to an empty list
More precisely, in concatLists, if all lists except one are empty,
then just return the non-empty list.  This reduces the number of list
element allocations by 32% when evaluating a NixOS system
configuration.
Diffstat (limited to 'Makefile.am')
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