JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / dfg / DFGDesiredWatchpoints.h

diff --git a/dfg/DFGDesiredWatchpoints.h b/dfg/DFGDesiredWatchpoints.h
index 3e07f9b1e9985ce8591c5f002213156542bfbf3d..ce89a04552ac6ec476dc9e13c6a37347c9bc6835 100644 (file)
--- a/dfg/DFGDesiredWatchpoints.h
+++ b/dfg/DFGDesiredWatchpoints.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Apple Inc. All rights reserved.
+ * Copyright (C) 2013-2015 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -30,6 +30,7 @@
 
 #include "CodeOrigin.h"
 #include "DFGCommonData.h"
+#include "InferredValue.h"
 #include "JSArrayBufferView.h"
 #include "Watchpoint.h"
 #include <wtf/HashMap.h>
@@ -39,26 +40,7 @@
 
 namespace JSC { namespace DFG {
 
-template<typename WatchpointSetType>
-struct WatchpointForGenericWatchpointSet {
-    WatchpointForGenericWatchpointSet()
-        : m_exitKind(ExitKindUnset)
-        , m_set(0)
-    {
-    }
-    
-    WatchpointForGenericWatchpointSet(
-        CodeOrigin codeOrigin, ExitKind exitKind, WatchpointSetType* set)
-        : m_codeOrigin(codeOrigin)
-        , m_exitKind(exitKind)
-        , m_set(set)
-    {
-    }
-    
-    CodeOrigin m_codeOrigin;
-    ExitKind m_exitKind;
-    WatchpointSetType* m_set;
-};
+class Graph;
 
 template<typename T>
 struct GenericSetAdaptor {
@@ -69,6 +51,14 @@ struct GenericSetAdaptor {
     static bool hasBeenInvalidated(T* set) { return set->hasBeenInvalidated(); }
 };
 
+struct InferredValueAdaptor {
+    static void add(CodeBlock*, InferredValue*, Watchpoint*);
+    static bool hasBeenInvalidated(InferredValue* inferredValue)
+    {
+        return inferredValue->hasBeenInvalidated();
+    }
+};
+
 struct ArrayBufferViewWatchpointAdaptor {
     static void add(CodeBlock*, JSArrayBufferView*, Watchpoint*);
     static bool hasBeenInvalidated(JSArrayBufferView* view)
@@ -95,12 +85,6 @@ public:
         m_sets.add(set);
     }
     
-    void addLazily(CodeOrigin codeOrigin, ExitKind exitKind, WatchpointSetType* set)
-    {
-        m_profiledWatchpoints.append(
-            WatchpointForGenericWatchpointSet<WatchpointSetType>(codeOrigin, exitKind, set));
-    }
-    
     void reallyAdd(CodeBlock* codeBlock, CommonData& common)
     {
         RELEASE_ASSERT(!m_reallyAdded);
@@ -112,14 +96,6 @@ public:
             Adaptor::add(codeBlock, *iter, &common.watchpoints.last());
         }
         
-        for (unsigned i = m_profiledWatchpoints.size(); i--;) {
-            WatchpointForGenericWatchpointSet<WatchpointSetType> watchpoint =
-                m_profiledWatchpoints[i];
-            common.profiledWatchpoints.append(
-                ProfiledCodeBlockJettisoningWatchpoint(watchpoint.m_codeOrigin, watchpoint.m_exitKind, codeBlock));
-            Adaptor::add(codeBlock, watchpoint.m_set, &common.profiledWatchpoints.last());
-        }
-        
         m_reallyAdded = true;
     }
     
@@ -132,53 +108,16 @@ public:
                 return false;
         }
         
-        for (unsigned i = m_profiledWatchpoints.size(); i--;) {
-            if (Adaptor::hasBeenInvalidated(m_profiledWatchpoints[i].m_set))
-                return false;
-        }
-        
         return true;
     }
     
-#if ASSERT_DISABLED
-    bool isStillValid(WatchpointSetType* set)
-    {
-        return !Adaptor::hasBeenInvalidated(set);
-    }
-    
-    bool shouldAssumeMixedState(WatchpointSetType*)
+    bool isWatched(WatchpointSetType* set) const
     {
-        return true;
-    }
-#else
-    bool isStillValid(WatchpointSetType* set)
-    {
-        bool result = !Adaptor::hasBeenInvalidated(set);
-        m_firstKnownState.add(set, result);
-        return result;
-    }
-    
-    bool shouldAssumeMixedState(WatchpointSetType* set)
-    {
-        typename StateMap::iterator iter = m_firstKnownState.find(set);
-        if (iter == m_firstKnownState.end())
-            return false;
-        
-        return iter->value != !Adaptor::hasBeenInvalidated(set);
-    }
-#endif
-    
-    bool isValidOrMixed(WatchpointSetType* set)
-    {
-        return isStillValid(set) || shouldAssumeMixedState(set);
+        return m_sets.contains(set);
     }
 
 private:
-    Vector<WatchpointForGenericWatchpointSet<WatchpointSetType>> m_profiledWatchpoints;
     HashSet<WatchpointSetType*> m_sets;
-#if !ASSERT_DISABLED
-    StateMap m_firstKnownState;
-#endif
     bool m_reallyAdded;
 };
 
@@ -189,54 +128,36 @@ public:
     
     void addLazily(WatchpointSet*);
     void addLazily(InlineWatchpointSet&);
+    void addLazily(InferredValue*);
     void addLazily(JSArrayBufferView*);
-    void addLazily(CodeOrigin, ExitKind, WatchpointSet*);
-    void addLazily(CodeOrigin, ExitKind, InlineWatchpointSet&);
+    
+    bool consider(Structure*);
     
     void reallyAdd(CodeBlock*, CommonData&);
     
     bool areStillValid() const;
     
-    bool isStillValid(WatchpointSet* set)
-    {
-        return m_sets.isStillValid(set);
-    }
-    bool isStillValid(InlineWatchpointSet& set)
-    {
-        return m_inlineSets.isStillValid(&set);
-    }
-    bool isStillValid(JSArrayBufferView* view)
-    {
-        return m_bufferViews.isStillValid(view);
-    }
-    bool shouldAssumeMixedState(WatchpointSet* set)
-    {
-        return m_sets.shouldAssumeMixedState(set);
-    }
-    bool shouldAssumeMixedState(InlineWatchpointSet& set)
-    {
-        return m_inlineSets.shouldAssumeMixedState(&set);
-    }
-    bool shouldAssumeMixedState(JSArrayBufferView* view)
+    bool isWatched(WatchpointSet* set)
     {
-        return m_bufferViews.shouldAssumeMixedState(view);
+        return m_sets.isWatched(set);
     }
-    bool isValidOrMixed(WatchpointSet* set)
+    bool isWatched(InlineWatchpointSet& set)
     {
-        return m_sets.isValidOrMixed(set);
+        return m_inlineSets.isWatched(&set);
     }
-    bool isValidOrMixed(InlineWatchpointSet& set)
+    bool isWatched(InferredValue* inferredValue)
     {
-        return m_inlineSets.isValidOrMixed(&set);
+        return m_inferredValues.isWatched(inferredValue);
     }
-    bool isValidOrMixed(JSArrayBufferView* view)
+    bool isWatched(JSArrayBufferView* view)
     {
-        return m_bufferViews.isValidOrMixed(view);
+        return m_bufferViews.isWatched(view);
     }
     
 private:
     GenericDesiredWatchpoints<WatchpointSet> m_sets;
     GenericDesiredWatchpoints<InlineWatchpointSet> m_inlineSets;
+    GenericDesiredWatchpoints<InferredValue, InferredValueAdaptor> m_inferredValues;
     GenericDesiredWatchpoints<JSArrayBufferView, ArrayBufferViewWatchpointAdaptor> m_bufferViews;
 };