diff options
Diffstat (limited to 'pkgs/lib/properties.nix')
| -rw-r--r-- | pkgs/lib/properties.nix | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkgs/lib/properties.nix b/pkgs/lib/properties.nix index 46854d0e1431..d7df14f716f5 100644 --- a/pkgs/lib/properties.nix +++ b/pkgs/lib/properties.nix @@ -223,6 +223,11 @@ rec { content = mkNotdef; }; + mkAssert = assertion: message: content: + mkIf + (if assertion then true else throw "\nFailed assertion: ${message}") + content; + # Remove all "If" statement defined on a value. rmIf = foldProperty ( foldFilter isIf |