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authorAlyssa Ross <hi@alyssa.is>2022-05-31 09:59:33 +0000
committerAlyssa Ross <hi@alyssa.is>2022-05-31 09:59:57 +0000
commit9ff36293d1e428cd7bf03e8d4b03611b6d361c28 (patch)
tree1ab51a42b868c55b83f6ccdb80371b9888739dd9 /lib/tests/modules/adhoc-freeformType-survives-type-merge.nix
parent1c4fcd0d4b0541e674ee56ace1053e23e562cc80 (diff)
parentddc3c396a51918043bb0faa6f676abd9562be62c (diff)
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Diffstat (limited to 'lib/tests/modules/adhoc-freeformType-survives-type-merge.nix')
-rw-r--r--lib/tests/modules/adhoc-freeformType-survives-type-merge.nix14
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/tests/modules/adhoc-freeformType-survives-type-merge.nix b/lib/tests/modules/adhoc-freeformType-survives-type-merge.nix
new file mode 100644
index 00000000000..3cefb543c25
--- /dev/null
+++ b/lib/tests/modules/adhoc-freeformType-survives-type-merge.nix
@@ -0,0 +1,14 @@
+{ lib, ... }: {
+  options.dummy = lib.mkOption { type = lib.types.anything; default = {}; };
+  freeformType =
+    let
+      a = lib.types.attrsOf (lib.types.submodule { options.bar = lib.mkOption { }; });
+    in
+    # modifying types like this breaks type merging.
+    # This test makes sure that type merging is not performed when only a single declaration exists.
+    # Don't modify types in practice!
+    a // {
+      merge = loc: defs: { freeformItems = a.merge loc defs; };
+    };
+  config.foo.bar = "ok";
+}