Switch full-codegen from StackHandlers to handler table.

src/isolate.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_ISOLATE_H_
 #define V8_ISOLATE_H_
 
 #include <queue>
 #include "include/v8-debug.h"
 #include "src/allocation.h"
@@ skipping 669 matching lines @@
   static int ArchiveSpacePerThread() { return sizeof(ThreadLocalTop); }
   void FreeThreadResources() { thread_local_top_.Free(); }
 
   // This method is called by the api after operations that may throw
   // exceptions.  If an exception was thrown and not handled by an external
   // handler the exception is scheduled to be rethrown when we return to running
   // JavaScript code.  If an exception is scheduled true is returned.
   bool OptionalRescheduleException(bool is_bottom_call);
 
   // Push and pop a promise and the current try-catch handler.
-  void PushPromise(Handle<JSObject> promise);
+  void PushPromise(Handle<JSObject> promise, Handle<JSFunction> function);
   void PopPromise();
   Handle<Object> GetPromiseOnStackOnThrow();
 
   class ExceptionScope {
    public:
     // Scope currently can only be used for regular exceptions,
     // not termination exception.
     explicit ExceptionScope(Isolate* isolate)
         : isolate_(isolate),
           pending_exception_(isolate_->pending_exception(), isolate_) {}
@@ skipping 56 matching lines @@
   }
 
   // Re-throw an exception.  This involves no error reporting since error
   // reporting was handled when the exception was thrown originally.
   Object* ReThrow(Object* exception);
 
   // Find the correct handler for the current pending exception. This also
   // clears and returns the current pending exception.
   Object* FindHandler();
 
-  // Tries to predict whether the exception will be caught. Note that this can
+  // Tries to predict whether an exception will be caught. Note that this can
   // only produce an estimate, because it is undecidable whether a finally
   // clause will consume or re-throw an exception. We conservatively assume any
   // finally clause will behave as if the exception were consumed.
-  bool PredictWhetherExceptionIsCaught(Object* exception);
+  enum CatchType { NOT_CAUGHT, CAUGHT_BY_JAVASCRIPT, CAUGHT_BY_EXTERNAL };
+  CatchType PredictExceptionCatcher();
 
   void ScheduleThrow(Object* exception);
   // Re-set pending message, script and positions reported to the TryCatch
   // back to the TLS for re-use when rethrowing.
   void RestorePendingMessageFromTryCatch(v8::TryCatch* handler);
   // Un-schedule an exception that was caught by a TryCatch handler.
   void CancelScheduledExceptionFromTryCatch(v8::TryCatch* handler);
   void ReportPendingMessages();
   // Return pending location if any or unfilled structure.
   MessageLocation GetMessageLocation();
@@ skipping 581 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(Isolate);
 };
 
 
 #undef FIELD_ACCESSOR
 #undef THREAD_LOCAL_TOP_ACCESSOR
 
 
 class PromiseOnStack {
  public:
-  PromiseOnStack(StackHandler* handler, Handle<JSObject> promise,
+  PromiseOnStack(Handle<JSFunction> function, Handle<JSObject> promise,
                  PromiseOnStack* prev)
-      : handler_(handler), promise_(promise), prev_(prev) {}
-  StackHandler* handler() { return handler_; }
+      : function_(function), promise_(promise), prev_(prev) {}
+  Handle<JSFunction> function() { return function_; }
   Handle<JSObject> promise() { return promise_; }
   PromiseOnStack* prev() { return prev_; }
 
  private:
-  StackHandler* handler_;
+  Handle<JSFunction> function_;
   Handle<JSObject> promise_;
   PromiseOnStack* prev_;
 };
 
 
 // If the GCC version is 4.1.x or 4.2.x an additional field is added to the
 // class as a work around for a bug in the generated code found with these
 // versions of GCC. See V8 issue 122 for details.
 class SaveContext BASE_EMBEDDED {
  public:
@@ skipping 174 matching lines @@
   }
 
   EmbeddedVector<char, 128> filename_;
   FILE* file_;
   int scope_depth_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ISOLATE_H_