From be1f0697468bd6c0f2be4f7e058270c161098e9f Mon Sep 17 00:00:00 2001
From: Guillaume Maudoux <guillaume.maudoux@tweag.io>
Date: Fri, 4 Mar 2022 05:04:47 +0100
Subject: Add error context for most basic coercions

---
 src/libexpr/attr-path.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/libexpr/attr-path.cc')

diff --git a/src/libexpr/attr-path.cc b/src/libexpr/attr-path.cc
index eb0e706c7..63ee8b1ae 100644
--- a/src/libexpr/attr-path.cc
+++ b/src/libexpr/attr-path.cc
@@ -112,7 +112,7 @@ Pos findPackageFilename(EvalState & state, Value & v, std::string what)
 
     // FIXME: is it possible to extract the Pos object instead of doing this
     //        toString + parsing?
-    auto pos = state.forceString(*v2);
+    auto pos = state.forceString(*v2, noPos, "While evaluating the meta.position attribute of a derivation");
 
     auto colon = pos.rfind(':');
     if (colon == std::string::npos)
-- 
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