From a05ddaa95a8f7f65fe01e2c1613a354876e69839 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 10 Mar 2022 10:17:48 +0200
Subject: Add reverse_execute_prerequisites() variant

---
 libbuild2/algorithm.ixx | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'libbuild2/algorithm.ixx')

diff --git a/libbuild2/algorithm.ixx b/libbuild2/algorithm.ixx
index c57e117..1b3a5cd 100644
--- a/libbuild2/algorithm.ixx
+++ b/libbuild2/algorithm.ixx
@@ -834,6 +834,12 @@ namespace build2
                          const timestamp&, const execute_filter&,
                          size_t);
 
+  LIBBUILD2_SYMEXPORT pair<optional<target_state>, const target*>
+  reverse_execute_prerequisites (const target_type*,
+                                 action, const target&,
+                                 const timestamp&, const execute_filter&,
+                                 size_t);
+
   inline optional<target_state>
   execute_prerequisites (action a, const target& t,
                          const timestamp& mt, const execute_filter& ef,
@@ -842,6 +848,14 @@ namespace build2
     return execute_prerequisites (nullptr, a, t, mt, ef, n).first;
   }
 
+  inline optional<target_state>
+  reverse_execute_prerequisites (action a, const target& t,
+                                 const timestamp& mt, const execute_filter& ef,
+                                 size_t n)
+  {
+    return reverse_execute_prerequisites (nullptr, a, t, mt, ef, n).first;
+  }
+
   template <typename T>
   inline pair<optional<target_state>, const T&>
   execute_prerequisites (action a, const target& t,
-- 
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