[Nix-dev] Nix syntax surprise.

[Guillaume Maudoux (Layus)]

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.

Thanks for any pointer,

— Layus.

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