Changeset 39571 in webkit for trunk/JavaScriptCore/runtime

Timestamp:

Jan 2, 2009, 8:36:40 PM (16 years ago)

Author:

[email protected]

Message:

Build fix. Include FrameState.h

Location:

trunk/JavaScriptCore/runtime

Files:

• ScopeChain.cpp (modified) (1 diff)
• ScopeChain.h (modified) (2 diffs)

trunk/JavaScriptCore/runtime/ScopeChain.cpp

@@ -51 +51 @@
 #endif
 
+int ScopeChain::localDepth() const
+{
+    int scopeDepth = 0;
+    ScopeChainIterator iter = this->begin();
+    ScopeChainIterator end = this->end();
+    while (!(*iter)->isObject(&JSActivation::info)) {
+        ++iter;
+        if (iter == end)
+            break;
+        ++scopeDepth;
+    }
+    return scopeDepth;
+}
+
 } // namespace JSC

trunk/JavaScriptCore/runtime/ScopeChain.h

@@ -49 +49 @@
         int refCount;
 
-        void deref() { if (--refCount == 0) release(); }
-        void ref() { ++refCount; }
+        void deref() { ASSERT(refCount); if (--refCount == 0) { release();} }
+        void ref() { ASSERT(refCount); ++refCount; }
         void release();
 
@@ -192 +192 @@
         void mark() const;
 
+        // Caution: this should only be used if the codeblock this is being used
+        // with needs a full scope chain, otherwise this returns the depth of
+        // the preceeding call frame
+        //
+        // Returns the depth of the current call frame's scope chain
+        int localDepth() const;
+
 #ifndef NDEBUG        
         void print() const { m_node->print(); }