From ae0ed53b09cba991551e984f474bf5732d26d3f3 Mon Sep 17 00:00:00 2001
From: Niels Egberts <git@nielsegberts.nl>
Date: Fri, 9 Jul 2021 21:50:10 +0100
Subject: [PATCH] toString also coerces a set with an outPath attribute to a
 string

nix-repl> builtins.toString { outPath = "somestring"; }
"somestring"
---
 src/libexpr/primops.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index e8569b654..209a05d11 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -3109,7 +3109,7 @@ static RegisterPrimOp primop_toString({
 
         - A path (e.g., `toString /foo/bar` yields `"/foo/bar"`.
 
-        - A set containing `{ __toString = self: ...; }`.
+        - A set containing `{ __toString = self: ...; }` or `{ outPath = ...; }`.
 
         - An integer.