From 26146d391f179dd9e4e5e1f70a52ba99d6a0847d Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 1 Apr 2016 09:49:18 +0200
Subject: Get part of variable override implementation

---
 build2/target.cxx | 33 ++++++++++++++++++++++++---------
 1 file changed, 24 insertions(+), 9 deletions(-)

(limited to 'build2/target.cxx')

diff --git a/build2/target.cxx b/build2/target.cxx
index e945d6d..f1f0637 100644
--- a/build2/target.cxx
+++ b/build2/target.cxx
@@ -117,23 +117,38 @@ namespace build2
   lookup target::
   operator[] (const variable& var) const
   {
+    lookup l;
+    bool tspec (false);
+
+    scope& s (base_scope ());
+
     if (auto p = vars.find (var))
-      return lookup (p, &vars);
+    {
+      tspec = true;
+      l = lookup (p, &vars);
+    }
 
-    if (group != nullptr)
+    if (!l && group != nullptr)
     {
       if (auto p = group->vars.find (var))
-        return lookup (p, &group->vars);
+      {
+        tspec = true;
+        l = lookup (p, &group->vars);
+      }
     }
 
     // Delegate to scope's find().
     //
-    return base_scope ().find (
-      var,
-      &type (),
-      &name,
-      group != nullptr ? &group->type () : nullptr,
-      group != nullptr ? &group->name : nullptr);
+    if (!l)
+      l = s.find_original (var,
+                           &type (),
+                           &name,
+                           group != nullptr ? &group->type () : nullptr,
+                           group != nullptr ? &group->name : nullptr);
+
+    return var.override == nullptr
+      ? l
+      : s.find_override (var, move (l), tspec);
   }
 
   value& target::
-- 
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