[Nix-dev] Nix syntax surprise.

[Kevin Cox]

On 24/06/16 05:58, Guillaume Maudoux (Layus) wrote:
> Hi,
> 
> Does someone understand why the following nix expression is invalid ?
> 
> |[ let a = 10; in { b = "a = ${a}"; } ] |
> 
> Running |nix-instantiate --eval ./bug.nix --strict| gives |error: syntax
> error, unexpected ID, expecting '{', at /home/layus/bug.nix:3:5|.
> 
> The manual says nothing about this in the “let expressions” section.
> 

Most often if you have non-trivial expressions in a list you need to put
them in brackets. I know this doesn't specifically answer your question
but I consider it a good practice.


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