Merge pull request #27797 from grahamc/fixed-lib

Convert libs to a fixed-point

lib/systems/default.nix

@@ -1,11 +1,12 @@
-let inherit (import ../attrsets.nix) mapAttrs; in
+{ lib }:
+  let inherit (lib.attrsets) mapAttrs; in
 
 rec {
-  doubles = import ./doubles.nix;
-  parse = import ./parse.nix;
-  inspect = import ./inspect.nix;
-  platforms = import ./platforms.nix;
-  examples = import ./examples.nix;
+  doubles = import ./doubles.nix { inherit lib; };
+  parse = import ./parse.nix { inherit lib; };
+  inspect = import ./inspect.nix { inherit lib; };
+  platforms = import ./platforms.nix { inherit lib; };
+  examples = import ./examples.nix { inherit lib; };
 
   # Elaborate a `localSystem` or `crossSystem` so that it contains everything
   # necessary.

lib/systems/doubles.nix

@@ -1,8 +1,9 @@
+{ lib }:
 let
-  lists = import ../lists.nix;
-  parse = import ./parse.nix;
-  inherit (import ./inspect.nix) predicates;
-  inherit (import ../attrsets.nix) matchAttrs;
+  inherit (lib) lists;
+  parse = import ./parse.nix { inherit lib; };
+  inherit (import ./inspect.nix { inherit lib; }) predicates;
+  inherit (lib.attrsets) matchAttrs;
 
   all = [
     "aarch64-linux"

lib/systems/examples.nix

@@ -1,8 +1,8 @@
 # These can be passed to nixpkgs as either the `localSystem` or
 # `crossSystem`. They are put here for user convenience, but also used by cross
 # tests and linux cross stdenv building, so handle with care!
-
-let platforms = import ./platforms.nix; in
+{ lib }:
+let platforms = import ./platforms.nix { inherit lib; }; in
 
 rec {
   #

lib/systems/inspect.nix

@@ -1,6 +1,7 @@
-with import ./parse.nix;
-with import ../attrsets.nix;
-with import ../lists.nix;
+{ lib }:
+with import ./parse.nix { inherit lib; };
+with lib.attrsets;
+with lib.lists;
 
 rec {
   patterns = rec {

lib/systems/parse.nix

@@ -4,14 +4,13 @@
 # http://llvm.org/docs/doxygen/html/Triple_8cpp_source.html especially
 # Triple::normalize. Parsing should essentially act as a more conservative
 # version of that last function.
-
-with import ../lists.nix;
-with import ../types.nix;
-with import ../attrsets.nix;
-with (import ./inspect.nix).predicates;
+{ lib }:
+with lib.lists;
+with lib.types;
+with lib.attrsets;
+with (import ./inspect.nix { inherit lib; }).predicates;
 
 let
-  lib = import ../default.nix;
   setTypesAssert = type: pred:
     mapAttrs (name: value:
       assert pred value;

lib/systems/platforms.nix

@@ -1,3 +1,4 @@
+{ lib }:
 rec {
   pcBase = {
     name = "pc";