overrideExisting
lib.overrideExisting
Docs pulled from | This Revision | 35 minutes ago
Override only the attributes that are already present in the old set useful for deep-overriding.
Inputs
old-
Original attribute set
new-
Attribute set with attributes to override in
old.
Type
overrideExisting :: AttrSet -> AttrSet -> AttrSet
Examples
lib.attrsets.overrideExisting usage example
overrideExisting {} { a = 1; }
=> {}
overrideExisting { b = 2; } { a = 1; }
=> { b = 2; }
overrideExisting { a = 3; b = 2; } { a = 1; }
=> { a = 1; b = 2; }