From e3e597180487328a54721e2afb95e33ed853d586 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 1 Feb 2017 16:36:24 +0200
Subject: Pass const scope& where modification should not happen

---
 build2/scope.ixx | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 build2/scope.ixx

(limited to 'build2/scope.ixx')

diff --git a/build2/scope.ixx b/build2/scope.ixx
new file mode 100644
index 0000000..46eea3d
--- /dev/null
+++ b/build2/scope.ixx
@@ -0,0 +1,42 @@
+// file      : build2/scope.ixx -*- C++ -*-
+// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+namespace build2
+{
+  // scope
+  //
+  inline scope* scope::
+  strong_scope ()
+  {
+    return root_ != nullptr
+      ? root_->strong_ != nullptr ? root_->strong_ : root_
+      : nullptr;
+  }
+
+  inline const scope* scope::
+  strong_scope () const
+  {
+    return root_ != nullptr
+      ? root_->strong_ != nullptr ? root_->strong_ : root_
+      : nullptr;
+  }
+
+  inline scope* scope::
+  weak_scope ()
+  {
+    scope* r (root_);
+    if (r != nullptr)
+      for (; r->parent_->root_ != nullptr; r = r->parent_->root_) ;
+    return r;
+  }
+
+  inline const scope* scope::
+  weak_scope () const
+  {
+    const scope* r (root_);
+    if (r != nullptr)
+      for (; r->parent_->root_ != nullptr; r = r->parent_->root_) ;
+    return r;
+  }
+}
-- 
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