From b311d7f8459fe1e90f7b0cbf5862b22a2cbedff5 Mon Sep 17 00:00:00 2001
From: sefidel <contact@sefidel.net>
Date: Tue, 23 Jan 2024 00:20:54 +0900
Subject: feat(lib)!: refactor

---
 lib/attrs.nix | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 lib/attrs.nix

(limited to 'lib/attrs.nix')

diff --git a/lib/attrs.nix b/lib/attrs.nix
new file mode 100644
index 0000000..0f8ebd1
--- /dev/null
+++ b/lib/attrs.nix
@@ -0,0 +1,26 @@
+{ lib, ... }:
+
+with builtins;
+with lib;
+rec {
+  # attrsToList
+  attrsToList = attrs:
+    mapAttrsToList (name: value: { inherit name value; }) attrs;
+
+  # mapFilterAttrs ::
+  #   (name -> value -> bool)
+  #   (name -> value -> { name = any; value = any; })
+  #   attrs
+  mapFilterAttrs = pred: f: attrs: filterAttrs pred (mapAttrs' f attrs);
+
+  # Generate an attribute set by mapping a function over a list of values.
+  genAttrs' = values: f: listToAttrs (map f values);
+
+  # anyAttrs :: (name -> value -> bool) attrs
+  anyAttrs = pred: attrs:
+    any (attr: pred attr.name attr.value) (attrsToList attrs);
+
+  # countAttrs :: (name -> value -> bool) attrs
+  countAttrs = pred: attrs:
+    count (attr: pred attr.name attr.value) (attrsToList attrs);
+}
-- 
cgit 1.4.1