Direct call api functions (arm implementation)

src/assembler.h

Index: src/assembler.h
===================================================================
--- src/assembler.h	(revision 6213)
+++ src/assembler.h	(working copy)
@@ -458,9 +458,6 @@
 #endif
 
 
-typedef void* ExternalReferenceRedirector(void* original, bool fp_return);
-
-
 // An ExternalReference represents a C++ address used in the generated
 // code. All references to C++ functions and variables must be encapsulated in
 // an ExternalReference instance. This is done in order to track the origin of
@@ -468,9 +465,20 @@
 // addresses when deserializing a heap.
 class ExternalReference BASE_EMBEDDED {
  public:
+  // Used in the simulator to support different native api interfaces.
+  // |BUILTIN_CALL| - MaybeObject* f(v8::internal::Arguments)
+  // |DIRECT_CALL|  - Handle<Value> f(v8::Arguments&)
+  enum Type {
+    BUILTIN_CALL,  // default
+    DIRECT_CALL
+  };
+
+  typedef void* ExternalReferenceRedirector(
+      void* original, bool fp_return, Type type);
+
   explicit ExternalReference(Builtins::CFunctionId id);
 
-  explicit ExternalReference(ApiFunction* ptr);
+  explicit ExternalReference(ApiFunction* ptr, bool fp_return, Type type);
 
   explicit ExternalReference(Builtins::Name name);
 
@@ -597,17 +605,19 @@
 
   static ExternalReferenceRedirector* redirector_;
 
-  static void* Redirect(void* address, bool fp_return = false) {
+  static void* Redirect(void* address, bool fp_return = false,
+                        Type type = ExternalReference::BUILTIN_CALL) {
     if (redirector_ == NULL) return address;
-    void* answer = (*redirector_)(address, fp_return);
+    void* answer = (*redirector_)(address, fp_return, type);
     return answer;
   }
 
-  static void* Redirect(Address address_arg, bool fp_return = false) {
+  static void* Redirect(Address address_arg, bool fp_return = false,
+                        Type type = ExternalReference::BUILTIN_CALL) {
     void* address = reinterpret_cast<void*>(address_arg);
     void* answer = (redirector_ == NULL) ?
                    address :
-                   (*redirector_)(address, fp_return);
+                   (*redirector_)(address, fp_return, type);
     return answer;
   }