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Unified Diff: src/handles.h

Issue 10697094: Add a second kind of HandleScope that ties the lifetime of Handles created in its scope to the life… (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 8 years, 5 months ago
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Index: src/handles.h
diff --git a/src/handles.h b/src/handles.h
index 960696b5fb81f705f2128b5586fef44ca0c8e7fb..aca869026e6ff5b651efd61f0aaeb1441714ad6a 100644
--- a/src/handles.h
+++ b/src/handles.h
@@ -95,6 +95,9 @@ class Handle {
};
+class HandleScopeImplementer;
+
+
// A stack-allocated class that governs a number of local handles.
// After a handle scope has been created, all local handles will be
// allocated within that handle scope until either the handle scope is
@@ -157,10 +160,37 @@ class HandleScope {
static void ZapRange(internal::Object** start, internal::Object** end);
friend class v8::HandleScope;
+ friend class v8::internal::HandleScopeImplementer;
friend class v8::ImplementationUtilities;
};
+class DeferredHandles;
+
+
+class DeferredHandleScope {
+ public:
+ explicit DeferredHandleScope(Isolate* isolate);
+ // The DeferredHandles object returned stores the Handles created
+ // since the creation of this DeferredHandleScope. The Handles are
+ // alive as long as the DeferredHandles object is alive.
+ DeferredHandles* Detach();
+ ~DeferredHandleScope();
+
+ private:
+ Object** prev_limit_;
+ Object** prev_next_;
+ HandleScopeImplementer* impl_;
+
+#ifdef DEBUG
+ bool handles_detached_;
+ int prev_level_;
+#endif
+
+ friend class HandleScopeImplementer;
+};
+
+
// ----------------------------------------------------------------------------
// Handle operations.
// They might invoke garbage collection. The result is an handle to
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