Reverting 3174. Aka reapplying 3150, 3151 and 3159. Aka api accessor

src/ia32/macro-assembler-ia32.h

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 59 matching lines @@
 
   // ---------------------------------------------------------------------------
   // Activation frames
 
   void EnterInternalFrame() { EnterFrame(StackFrame::INTERNAL); }
   void LeaveInternalFrame() { LeaveFrame(StackFrame::INTERNAL); }
 
   void EnterConstructFrame() { EnterFrame(StackFrame::CONSTRUCT); }
   void LeaveConstructFrame() { LeaveFrame(StackFrame::CONSTRUCT); }
 
-  // Enter specific kind of exit frame; either EXIT or
-  // EXIT_DEBUG. Expects the number of arguments in register eax and
+  // Enter specific kind of exit frame; either in normal or debug mode.
+  // Expects the number of arguments in register eax and
   // sets up the number of arguments in register edi and the pointer
   // to the first argument in register esi.
-  void EnterExitFrame(StackFrame::Type type);
+  void EnterExitFrame(ExitFrame::Mode mode);
+
+  void EnterApiExitFrame(ExitFrame::Mode mode, int stack_space, int argc);
 
   // Leave the current exit frame. Expects the return value in
   // register eax:edx (untouched) and the pointer to the first
   // argument in register esi.
-  void LeaveExitFrame(StackFrame::Type type);
+  void LeaveExitFrame(ExitFrame::Mode mode);
 
 
   // ---------------------------------------------------------------------------
   // JavaScript invokes
 
   // Invoke the JavaScript function code by either calling or jumping.
   void InvokeCode(const Operand& code,
                   const ParameterCount& expected,
                   const ParameterCount& actual,
                   InvokeFlag flag);
@@ skipping 162 matching lines @@
   // Convenience function: Same as above, but takes the fid instead.
   void CallRuntime(Runtime::FunctionId id, int num_arguments);
 
   // Tail call of a runtime routine (jump).
   // Like JumpToRuntime, but also takes care of passing the number
   // of arguments.
   void TailCallRuntime(const ExternalReference& ext,
                        int num_arguments,
                        int result_size);
 
+  void PushHandleScope(Register scratch);
+  void PopHandleScope(Register scratch);
+
   // Jump to a runtime routine.
   void JumpToRuntime(const ExternalReference& ext);
 
 
   // ---------------------------------------------------------------------------
   // Utilities
 
   void Ret();
 
   struct Unresolved {
@@ skipping 57 matching lines @@
   //    returns the builtin code object for IllegalFunction, and sets the
   //    output parameter "resolved" to false.  Code that uses the return value
   //    should then add the address and the builtin name to the list of fixups
   //    called unresolved_, which is fixed up by the bootstrapper.
   Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved);
 
   // Activation support.
   void EnterFrame(StackFrame::Type type);
   void LeaveFrame(StackFrame::Type type);
 
+  void EnterExitFramePrologue(ExitFrame::Mode mode);
+  void EnterExitFrameEpilogue(ExitFrame::Mode mode, int argc);
+
   // Allocation support helpers.
   void LoadAllocationTopHelper(Register result,
                                Register result_end,
                                Register scratch,
                                AllocationFlags flags);
   void UpdateAllocationTopHelper(Register result_end, Register scratch);
 };
 
 
 // The code patcher is used to patch (typically) small parts of code e.g. for
@@ skipping 52 matching lines @@
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_MACRO_ASSEMBLER_IA32_H_