From fe6f3ec0868185511f5acefb2729eb879798f052 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 17 Jul 2018 13:18:17 +0200
Subject: Reimplement version::in_rule in terms of in::rule

Significantly, the version::in_rule rule now track changes to the substitution
values.
---
 build2/version/rule.hxx | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

(limited to 'build2/version/rule.hxx')

diff --git a/build2/version/rule.hxx b/build2/version/rule.hxx
index b01383f..afed11a 100644
--- a/build2/version/rule.hxx
+++ b/build2/version/rule.hxx
@@ -8,28 +8,25 @@
 #include <build2/types.hxx>
 #include <build2/utility.hxx>
 
-#include <build2/rule.hxx>
+#include <build2/in/rule.hxx>
 #include <build2/install/rule.hxx>
 
 namespace build2
 {
   namespace version
   {
-    // Preprocess an .in file.
+    // Preprocess an .in file that depends on manifest.
     //
-    class in_rule: public rule
+    class in_rule: public in::rule
     {
     public:
-      in_rule () {}
+      in_rule (): rule ("version.in 1", "ver") {}
 
       virtual bool
       match (action, target&, const string&) const override;
 
-      virtual recipe
-      apply (action, target&) const override;
-
-      static target_state
-      perform_update (action, const target&);
+      virtual string
+      lookup (const location&, const target&, const string&) const override;
     };
 
     // Pre-process manifest before installation to patch in the version.
-- 
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