webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 13 insertions, 35 deletions

diff --git a/Source/JavaScriptCore/jit/JITStubRoutine.h b/Source/JavaScriptCore/jit/JITStubRoutine.h
index 020ef6907..2bf37fab4 100644
--- a/Source/JavaScriptCore/jit/JITStubRoutine.h
+++ b/Source/JavaScriptCore/jit/JITStubRoutine.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012 Apple Inc. All rights reserved.
+ * Copyright (C) 2012, 2014 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -23,17 +23,12 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
-#ifndef JITStubRoutine_h
-#define JITStubRoutine_h
-
-#include <wtf/Platform.h>
+#pragma once
 
 #if ENABLE(JIT)
 
 #include "ExecutableAllocator.h"
 #include "MacroAssemblerCodeRef.h"
-#include <wtf/RefCounted.h>
-#include <wtf/Vector.h>
 
 namespace JSC {
 
@@ -61,24 +56,22 @@ public:
     
     // Use this if you want to pass a CodePtr to someone who insists on taking
     // a RefPtr<JITStubRoutine>.
-    static PassRefPtr<JITStubRoutine> createSelfManagedRoutine(
+    static Ref<JITStubRoutine> createSelfManagedRoutine(
         MacroAssemblerCodePtr rawCodePointer)
     {
-        return adoptRef(new JITStubRoutine(MacroAssemblerCodeRef::createSelfManagedCodeRef(rawCodePointer)));
+        return adoptRef(*new JITStubRoutine(MacroAssemblerCodeRef::createSelfManagedCodeRef(rawCodePointer)));
     }
     
     virtual ~JITStubRoutine();
+    virtual void aboutToDie() { }
     
     // MacroAssemblerCodeRef is copyable, but at the cost of reference
     // counting churn. Returning a reference is a good way of reducing
     // the churn.
     const MacroAssemblerCodeRef& code() const { return m_code; }
     
-    static MacroAssemblerCodePtr asCodePtr(PassRefPtr<JITStubRoutine> stubRoutine)
+    static MacroAssemblerCodePtr asCodePtr(Ref<JITStubRoutine>&& stubRoutine)
     {
-        if (!stubRoutine)
-            return MacroAssemblerCodePtr();
-        
         MacroAssemblerCodePtr result = stubRoutine->code().code();
         ASSERT(!!result);
         return result;
@@ -104,29 +97,15 @@ public:
     
     static bool canPerformRangeFilter()
     {
-#if ENABLE(EXECUTABLE_ALLOCATOR_FIXED)
         return true;
-#else
-        return false;
-#endif
     }
     static uintptr_t filteringStartAddress()
     {
-#if ENABLE(EXECUTABLE_ALLOCATOR_FIXED)
         return startOfFixedExecutableMemoryPool;
-#else
-        UNREACHABLE_FOR_PLATFORM();
-        return 0;
-#endif
     }
     static size_t filteringExtentSize()
     {
-#if ENABLE(EXECUTABLE_ALLOCATOR_FIXED)
         return fixedExecutableMemoryPoolSize;
-#else
-        UNREACHABLE_FOR_PLATFORM();
-        return 0;
-#endif
     }
     static bool passesFilter(uintptr_t address)
     {
@@ -141,6 +120,11 @@ public:
         
         return true;
     }
+    
+    // Return true if you are still valid after. Return false if you are now invalid. If you return
+    // false, you will usually not do any clearing because the idea is that you will simply be
+    // destroyed.
+    virtual bool visitWeak(VM&);
 
 protected:
     virtual void observeZeroRefCount();
@@ -150,15 +134,9 @@ protected:
 };
 
 // Helper for the creation of simple stub routines that need no help from the GC.
-#define FINALIZE_CODE_FOR_STUB(patchBuffer, dataLogFArguments) \
-    (adoptRef(new JITStubRoutine(FINALIZE_CODE((patchBuffer), dataLogFArguments))))
-
-#define FINALIZE_CODE_FOR_DFG_STUB(patchBuffer, dataLogFArguments) \
-    (adoptRef(new JITStubRoutine(FINALIZE_DFG_CODE((patchBuffer), dataLogFArguments))))
+#define FINALIZE_CODE_FOR_STUB(codeBlock, patchBuffer, dataLogFArguments) \
+    (adoptRef(new JITStubRoutine(FINALIZE_CODE_FOR((codeBlock), (patchBuffer), dataLogFArguments))))
 
 } // namespace JSC
 
 #endif // ENABLE(JIT)
-
-#endif // JITStubRoutine_h
-