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Require flake.nix to be an attrset (not a non-trivial thunk)

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Eelco Dolstra 2019-09-09 17:34:38 +02:00
parent c87840ae14
commit f97d3753a1
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4 changed files with 28 additions and 8 deletions
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5
src/libexpr/value.hh
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@ -170,6 +170,11 @@ struct Value
{
return type == tList1 ? 1 : type == tList2 ? 2 : bigList.size;
}
/* Check whether forcing this value requires a trivial amount of
computation. In particular, function applications are
non-trivial. */
bool isTrivial() const;
};