From 86881226b0e51c204f07385b7b57743c23e34d44 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9ophane=20Hufschmitt?=
 <7226587+thufschmitt@users.noreply.github.com>
Date: Tue, 31 Oct 2023 16:19:05 +0100
Subject: Merge pull request #8817 from iFreilicht/flake-update-lock-overhaul

Overhaul `nix flake update` and `nix flake lock` UX

(cherry picked from commit 12a0ae73dbb37becefa5a442eb4532ff0de9ce65)
Change-Id: Iff3b4f4235ebb1948ec612036b39ab29e4ca22b2
---
 src/libutil/args.hh | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'src/libutil/args.hh')

diff --git a/src/libutil/args.hh b/src/libutil/args.hh
index c90a48ad4..77f7ff2a8 100644
--- a/src/libutil/args.hh
+++ b/src/libutil/args.hh
@@ -200,13 +200,25 @@ protected:
     /**
      * Queue of expected positional argument forms.
      *
-     * Positional arugment descriptions are inserted on the back.
+     * Positional argument descriptions are inserted on the back.
      *
      * As positional arguments are passed, these are popped from the
      * front, until there are hopefully none left as all args that were
      * expected in fact were passed.
      */
     std::list<ExpectedArg> expectedArgs;
+    /**
+     * List of processed positional argument forms.
+     *
+     * All items removed from `expectedArgs` are added here. After all
+     * arguments were processed, this list should be exactly the same as
+     * `expectedArgs` was before.
+     *
+     * This list is used to extend the lifetime of the argument forms.
+     * If this is not done, some closures that reference the command
+     * itself will segfault.
+    */
+   std::list<ExpectedArg> processedArgs;
 
     /**
      * Process some positional arugments
-- 
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