X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/14957cd040308e3eeec43d26bae5d76da13fcd85..refs/heads/master:/runtime/WeakRandom.h

diff --git a/runtime/WeakRandom.h b/runtime/WeakRandom.h
index 6083980..98b23c7 100644
--- a/runtime/WeakRandom.h
+++ b/runtime/WeakRandom.h
@@ -56,12 +56,15 @@
 namespace JSC {
 
 class WeakRandom {
+friend class JSGlobalObject; // For access to initializeSeed() during replay.
 public:
     WeakRandom(unsigned seed)
-        : m_low(seed ^ 0x49616E42)
-        , m_high(seed)
     {
+        initializeSeed(seed);
     }
+    
+    // Returns the seed provided that you've never called get() or getUint32().
+    unsigned seedUnsafe() const { return m_high; }
 
     double get()
     {
@@ -82,6 +85,12 @@ private:
         return m_high;
     }
 
+    void initializeSeed(unsigned seed)
+    {
+        m_low = seed ^ 0x49616E42;
+        m_high = seed;
+    }
+
     unsigned m_low;
     unsigned m_high;
 };