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options: Learn how to merge identical integer values.

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svn path=/nixpkgs/trunk/; revision=20581
This commit is contained in:
Ludovic Courtès 2010-03-11 22:03:49 +00:00
parent 529e1900ca
commit 4b7ff33c26
1 changed files with 2 additions and 0 deletions
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2
pkgs/lib/options.nix
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@ -195,6 +195,8 @@ rec {
else if all isAttrs list then fold lib.mergeAttrs {} list else if all isAttrs list then fold lib.mergeAttrs {} list
else if all builtins.isBool list then fold lib.or false list else if all builtins.isBool list then fold lib.or false list
else if all builtins.isString list then lib.concatStrings list else if all builtins.isString list then lib.concatStrings list
else if all builtins.isInt list && all (x: x == head list) list
then head list
else throw "Cannot merge values."; else throw "Cannot merge values.";
mergeTypedOption = typeName: predicate: merge: list: mergeTypedOption = typeName: predicate: merge: list: