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Revert "tryAttrs: init function" 

This reverts commit 338340f993.
This commit is contained in:
Nikolay Amiantov 2016-04-14 17:47:28 +03:00
parent 31d76ae1b1
commit 5f3987f44f
1 changed files with 0 additions and 18 deletions
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18
lib/attrsets.nix
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@ -438,24 +438,6 @@ rec {
overrideExisting = old: new: overrideExisting = old: new:
old // listToAttrs (map (attr: nameValuePair attr (attrByPath [attr] old.${attr} new)) (attrNames old)); old // listToAttrs (map (attr: nameValuePair attr (attrByPath [attr] old.${attr} new)) (attrNames old));
/* Try given attributes in order. If no attributes are found, return
attribute list itself.
Example:
tryAttrs ["a" "b"] { a = 1; b = 2; }
=> 1
tryAttrs ["a" "b"] { c = 3; }
=> { c = 3; }
*/
tryAttrs = allAttrs: set:
let tryAttrs_ = attrs:
if attrs == [] then set
else
(let h = head attrs; in
if hasAttr h set then getAttr h set
else tryAttrs_ (tail attrs));
in tryAttrs_ allAttrs;
/*** deprecated stuff ***/ /*** deprecated stuff ***/