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| -rw-r--r-- | doc/functions.xml | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/doc/functions.xml b/doc/functions.xml index f790512e7db..b2e45097294 100644 --- a/doc/functions.xml +++ b/doc/functions.xml @@ -294,6 +294,22 @@ merge:"diff3" </section> +<section xml:id="sec-debug"> + <title>Debugging Nix Expressions</title> + + <para>Nix is a unityped, dynamic language, this means every value can + potentially appear anywhere. Since it is also non-strict, evaluation order + and what ultimately is evaluated might surprise you. Therefore it is important + to be able to debug nix expressions.</para> + + + <para>In the <literal>lib/debug.nix</literal> file you will find a number of + functions that help (pretty-)printing values while evaluation is runnnig. You + can even specify how deep these values should be printed recursively, and + transform them on the fly. Please consult the docstrings in + <literal>lib/debug.nix</literal> for usage information.</para> +</section> + <section xml:id="sec-fhs-environments"> <title>buildFHSUserEnv</title> |