X-Git-Url: http://git.webkit.org/?p=WebKit-https.git;a=blobdiff_plain;f=Source%2FJavaScriptCore%2Fbytecode%2FStructureStubInfo.cpp;h=77531c5d2558992df280f18e20ee68dd14fcb0c8;hp=d925cfcdea30405e82412dd999460e000a596119;hb=faf049d1a98f426127cabf0cf5e0892286ad234e;hpb=fb7ad05a3cc9e904e6e6c338f3dc162102def410

diff --git a/Source/JavaScriptCore/bytecode/StructureStubInfo.cpp b/Source/JavaScriptCore/bytecode/StructureStubInfo.cpp
index d925cfc..77531c5 100644
--- a/Source/JavaScriptCore/bytecode/StructureStubInfo.cpp
+++ b/Source/JavaScriptCore/bytecode/StructureStubInfo.cpp
@@ -230,7 +230,10 @@ void StructureStubInfo::visitWeakReferences(CodeBlock* codeBlock)
 {
     VM& vm = *codeBlock->vm();
     
-    bufferedStructures.clear();
+    bufferedStructures.genericFilter(
+        [&] (Structure* structure) -> bool {
+            return Heap::isMarked(structure);
+        });
 
     switch (cacheType) {
     case CacheType::GetByIdSelf:
@@ -250,6 +253,22 @@ void StructureStubInfo::visitWeakReferences(CodeBlock* codeBlock)
     resetByGC = true;
 }
 
+bool StructureStubInfo::propagateTransitions(SlotVisitor& visitor)
+{
+    switch (cacheType) {
+    case CacheType::Unset:
+        return true;
+    case CacheType::GetByIdSelf:
+    case CacheType::PutByIdReplace:
+        return u.byIdSelf.baseObjectStructure->markIfCheap(visitor);
+    case CacheType::Stub:
+        return u.stub->propagateTransitions(visitor);
+    }
+    
+    RELEASE_ASSERT_NOT_REACHED();
+    return true;
+}
+
 bool StructureStubInfo::containsPC(void* pc) const
 {
     if (cacheType != CacheType::Stub)