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| author | Shea Levy <shea@shealevy.com> | 2013-12-12 14:01:48 -0500 |
|---|---|---|
| committer | Shea Levy <shea@shealevy.com> | 2013-12-12 14:01:48 -0500 |
| commit | 3c5971692a0edd8867b1c6f91598e0c403bf1376 (patch) | |
| tree | 4871c37bc3dee7a7f94639509bd91974b491d284 /lib/lists.nix | |
| parent | a42508a8ba3f0cba2b62c138f242461e302e96df (diff) | |
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Simplify crossLists
Signed-off-by: Shea Levy <shea@shealevy.com>
Diffstat (limited to 'lib/lists.nix')
| -rw-r--r-- | lib/lists.nix | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/lib/lists.nix b/lib/lists.nix index 561a657264b..71a89702796 100644 --- a/lib/lists.nix +++ b/lib/lists.nix @@ -225,10 +225,5 @@ in rec { deepSeqList = xs: y: if any (x: deepSeq x false) xs then y else y; - crossLists = f: xss: - let - argss = fold (l: argss: - concatMap (arg: map (args: [ arg ] ++ args) argss) l - ) [[]] xss; - in map (args: foldl (f: arg: f arg) f args) argss; + crossLists = f: foldl (fs: args: concatMap (f: map f args) fs) [f]; } |