From 0aa7a94e1032a96a2a72cb6a82824f9fe970d412 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 14 Dec 2022 14:18:44 +0200
Subject: Improve empty simple value to empty list of names reduction
 heuristics

Specifically, do not reduce typed RHS empty simple values for prepend/append
and additionally for assignment provided LHS is typed and is a container.
---
 libbuild2/config/operation.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'libbuild2/config/operation.cxx')

diff --git a/libbuild2/config/operation.cxx b/libbuild2/config/operation.cxx
index 34ed402..9079bbf 100644
--- a/libbuild2/config/operation.cxx
+++ b/libbuild2/config/operation.cxx
@@ -181,7 +181,7 @@ namespace build2
         if (v)
         {
           storage.clear ();
-          dr << "'" << reverse (v, storage) << "'";
+          dr << "'" << reverse (v, storage, true /* reduce */) << "'";
         }
         else
           dr << "[null]";
@@ -531,7 +531,7 @@ namespace build2
             pair<names_view, const char*> p (
               sv.save != nullptr
               ? sv.save (v, base, storage)
-              : make_pair (reverse (v, storage), "="));
+              : make_pair (reverse (v, storage, true /* reduce */), "="));
 
             // Might becomes empty after a custom save function had at it.
             //
-- 
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