From ac838a3c051e8f15514f0454b060d00695b372f7 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 9 Apr 2019 10:33:59 +0200
Subject: Add dry-run support to test rules

---
 build2/context.ixx | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'build2/context.ixx')

diff --git a/build2/context.ixx b/build2/context.ixx
index 62f3d81..1c25922 100644
--- a/build2/context.ixx
+++ b/build2/context.ixx
@@ -7,6 +7,12 @@ namespace build2
   // wait_guard
   //
   inline wait_guard::
+  wait_guard ()
+      : start_count (0), task_count (nullptr), phase (false)
+  {
+  }
+
+  inline wait_guard::
   wait_guard (atomic_count& tc, bool p)
       : wait_guard (0, tc, p)
   {
@@ -25,6 +31,25 @@ namespace build2
       wait ();
   }
 
+  inline wait_guard::
+  wait_guard (wait_guard&& x)
+      : start_count (x.start_count), task_count (x.task_count), phase (x.phase)
+  {
+    x.task_count = nullptr;
+  }
+
+  inline wait_guard& wait_guard::
+  operator= (wait_guard&& x)
+  {
+    if (&x != this)
+    {
+      assert (task_count == nullptr);
+      start_count = x.start_count; task_count = x.task_count; phase = x.phase;
+      x.task_count = nullptr;
+    }
+    return *this;
+  }
+
   inline void wait_guard::
   wait ()
   {
-- 
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