diff options
Diffstat (limited to 'doc/functions/debug.section.md')
-rw-r--r-- | doc/functions/debug.section.md | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/functions/debug.section.md b/doc/functions/debug.section.md new file mode 100644 index 00000000000..b2d8589431a --- /dev/null +++ b/doc/functions/debug.section.md @@ -0,0 +1,5 @@ +# Debugging Nix Expressions {#sec-debug} + +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. + +In the `lib/debug.nix` file you will find a number of functions that help (pretty-)printing values while evaluation is running. You can even specify how deep these values should be printed recursively, and transform them on the fly. Please consult the docstrings in `lib/debug.nix` for usage information. |