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authorRobert Hensing <robert@roberthensing.nl>2022-04-07 11:05:28 +0200
committerRobert Hensing <robert@roberthensing.nl>2022-05-02 09:53:10 +0200
commit345ff18c99af958afdbd57f077aae9af4000e864 (patch)
treefc6ee7dfba80212731f5e8d8c8a14359685051e3
parentip2unix: 2.1.3 -> 2.1.4 (diff)
downloadnixpkgs-origin/release-20.03.tar.gz
pkgs: Add _type = "pkgs"origin/release-20.03
(cherry picked from commit ad1e2500efd0aa49b0dc7427bf69d4879f3b0ff5) (cherry picked from commit aec730a0af4c977513ce28236cbecaca72af6901)
-rw-r--r--pkgs/top-level/all-packages.nix15
1 files changed, 15 insertions, 0 deletions
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index b18a27c4ed41..33491e615838 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -24,6 +24,21 @@ let
in
{
+ # A module system style type tag
+ #
+ # Allows the nixpkgs fixpoint, usually known as `pkgs`
+ # to be distinguished nominally.
+ #
+ # pkgs._type == "pkgs"
+ # pkgs.pkgsStatic._type == "pkgs"
+ #
+ # Design note:
+ # While earlier stages of nixpkgs fixpoint construction
+ # are supertypes of this stage, they're generally not
+ # usable in places where a `pkgs` is expected.
+ # (earlier stages being the various `super` variables
+ # that precede all-packages.nix)
+ _type = "pkgs";
# A stdenv capable of building 32-bit binaries. On x86_64-linux,
# it uses GCC compiled with multilib support; on i686-linux, it's