From 3b58dbb3561e02dc94e88b531d0942a7f8ccf8ea Mon Sep 17 00:00:00 2001
From: regnat <rg@regnat.ovh>
Date: Tue, 22 Jun 2021 11:29:55 +0200
Subject: [PATCH] nix-shell: Replace resolving failure error by an assertion
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This shouldn’t happen in practice, so better make it explicit
---
 src/nix-build/nix-build.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/nix-build/nix-build.cc b/src/nix-build/nix-build.cc
index 05eb7e234..3fec2c06c 100755
--- a/src/nix-build/nix-build.cc
+++ b/src/nix-build/nix-build.cc
@@ -389,8 +389,7 @@ static void main_nix_build(int argc, char * * argv)
 
         if (settings.isExperimentalFeatureEnabled("ca-derivations")) {
             auto resolvedDrv = drv.tryResolve(*store);
-            if (!resolvedDrv)
-                throw Error("unable to resolve the derivation '%s'. nix-shell can’t continue", drvInfo.queryDrvPath());
+            assert(resolvedDrv && "Successfully resolved the derivation");
             drv = *resolvedDrv;
         }