Nix Language Quirks: Difference between revisions
imported>Danbst added let and with |
imported>Danbst added old let syntax |
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[https://github.com/NixOS/nix/issues/1361 Good discussion on this topic] | [https://github.com/NixOS/nix/issues/1361 Good discussion on this topic] | ||
== Old <code>let</code> syntax == | |||
This is an old Nix syntax, that probably isn't used much | |||
<nowiki> | |||
nix-repl> let { x = 1; y = x + 1; body = y; } | |||
2</nowiki> | |||
It is equivalent to modern syntax expression <code>let x = 1; y = x + 1; in y</code>. Note, that it doesn't require <code>rec</code> keyword. | |||
Note, that it isn't equivalent to <code>with rec { x = 1; y = x + 1; body = y; }; body</code> because of mentioned <code>with</code> and <code>let</code> quirk, but is same as <code>rec { x = 1; y = x + 1; body = y; }.body</code> | |||