diff options
Diffstat (limited to 'lib/attrsets.nix')
| -rw-r--r-- | lib/attrsets.nix | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/attrsets.nix b/lib/attrsets.nix index 2a1b866dbc5..d374d229f59 100644 --- a/lib/attrsets.nix +++ b/lib/attrsets.nix @@ -94,6 +94,15 @@ rec { attrValues = builtins.attrValues or (attrs: attrVals (attrNames attrs) attrs); + /* Given a set of attribute names, return the set of the corresponding + attributes from the given set. + + Example: + getAttrs [ "a" "b" ] { a = 1; b = 2; c = 3; } + => { a = 1; b = 2; } + */ + getAttrs = names: attrs: genAttrs names (name: attrs.${name}); + /* Collect each attribute named `attr' from a list of attribute sets. Sets that don't contain the named attribute are ignored. |