Partial ia32 implementation of optimized try/catch (by Kevin Millikin)

src/frames-inl.h

Index: src/frames-inl.h
diff --git a/src/frames-inl.h b/src/frames-inl.h
index 27a526cef1086e039e877b9d6626ce2dc33e5515..cae6cdd88598f8ca55765846f9c3b54befcc14e7 100644
--- a/src/frames-inl.h
+++ b/src/frames-inl.h
@@ -59,6 +59,17 @@ inline StackHandler* StackHandler::next() const {
 }
 
 
+inline Code* StackHandler::code() const {
+  return Code::cast(*code_address());
+}
+
+
+inline int StackHandler::index() const {
+  const int offset = StackHandlerConstants::kStateOffset;
+  return IndexField::decode(Memory::unsigned_at(address() + offset));
+}
+
+
 inline bool StackHandler::includes(Address address) const {
   Address start = this->address();
   Address end = start + StackHandlerConstants::kSize;
@@ -83,7 +94,7 @@ inline bool StackHandler::is_js_entry() const {
 
 
 inline bool StackHandler::is_catch() const {
-  return kind() == CATCH;
+  return kind() == CATCH || kind() == OPTIMIZED_CATCH;
 }
 
 
@@ -92,6 +103,11 @@ inline bool StackHandler::is_finally() const {
 }
 
 
+inline bool StackHandler::is_optimized() const {
+  return (kind() & kIsOptimizedMask) != 0;
+}
+
+
 inline StackHandler::Kind StackHandler::kind() const {
   const int offset = StackHandlerConstants::kStateOffset;
   return KindField::decode(Memory::unsigned_at(address() + offset));