nixpkgs/lib/tests/modules/functionTo/merging-attrs.nix

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2021-01-26 21:30:07 +00:00
{ lib, config, ... }:
let
inherit (lib) types;
in {
options = {
fun = lib.mkOption {
type = types.functionTo (types.attrsOf types.str);
};
result = lib.mkOption {
type = types.str;
default = toString (lib.attrValues (config.fun {
a = "a";
b = "b";
c = "c";
}));
};
};
config.fun = lib.mkMerge [
(input: { inherit (input) a; })
(input: { inherit (input) b; })
(input: {
b = lib.mkForce input.c;
})
];
}