lib.fixedPoints.makeExtensible

Create an overridable, recursive attribute set. For example:

nix-repl> obj = makeExtensible (final: { })

nix-repl> obj
{ __unfix__ = «lambda»; extend = «lambda»; }

nix-repl> obj = obj.extend (final: prev: { foo = "foo"; })

nix-repl> obj
{ __unfix__ = «lambda»; extend = «lambda»; foo = "foo"; }

nix-repl> obj = obj.extend (final: prev: { foo = prev.foo + " + "; bar = "bar"; foobar = final.foo + final.bar; })

nix-repl> obj
{ __unfix__ = «lambda»; bar = "bar"; extend = «lambda»; foo = "foo + "; foobar = "foo + bar"; }

Noogle detected

• lib.makeExtensible

rattrs:
    fix' (
      self:
      (rattrs self)
      // {
        ${extenderName} = f: makeExtensibleWithCustomName extenderName (extends f rattrs);
      }
    )