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feat: add n-ary either

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Alex Rice 2019-09-19 15:33:07 +01:00 committed by Vincent Ambo
parent 7b1e389c66
commit 13cc0d3d48
1 changed files with 4 additions and 2 deletions
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6
default.nix
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@ -123,8 +123,10 @@ in lib.fix (self: {
};
};
either = t1: t2: typedef "either<${t1.name},${t2.name}>"
(x: (self.type t1).check x || (self.type t2).check x);
eitherN = tn: typedef "either<${concatStringsSep ", " (map (x: x.name) tn)}>"
(x: any (t: (self.type t).check x) tn);
either = t1: t2: self.eitherN [ t1 t2 ];
list = t: typedef' rec {
name = "list<${t.name}>";