From 0258ac9c2a49eb0cc632bc02d72093392bd37bfc Mon Sep 17 00:00:00 2001
From: John Ericson <John.Ericson@Obsidian.Systems>
Date: Sat, 4 Feb 2023 20:45:40 -0500
Subject: Make `--read-only` a separate mixin

It is independent of SourceExprCommand, which is about parsing
installables, except for the fact that parsing installables is one of
the many things influenced by read-only mode.
---
 src/nix/eval.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/nix/eval.cc')

diff --git a/src/nix/eval.cc b/src/nix/eval.cc
index ccee074e9..a579213fd 100644
--- a/src/nix/eval.cc
+++ b/src/nix/eval.cc
@@ -11,13 +11,13 @@
 
 using namespace nix;
 
-struct CmdEval : MixJSON, InstallableCommand
+struct CmdEval : MixJSON, InstallableCommand, MixReadOnlyOption
 {
     bool raw = false;
     std::optional<std::string> apply;
     std::optional<Path> writeTo;
 
-    CmdEval() : InstallableCommand(true /* supportReadOnlyMode */)
+    CmdEval() : InstallableCommand()
     {
         addFlag({
             .longName = "raw",
-- 
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