Optionally invoke an interceptor on failed access checks

src/isolate.cc

 // 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.
 
 #include "src/isolate.h"
 
 #include <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
@@ skipping 784 matching lines @@
   accumulator->Add("=====================\n\n");
 }
 
 
 void Isolate::SetFailedAccessCheckCallback(
     v8::FailedAccessCheckCallback callback) {
   thread_local_top()->failed_access_check_callback_ = callback;
 }
 
 
-static inline AccessCheckInfo* GetAccessCheckInfo(Isolate* isolate,
-                                                  Handle<JSObject> receiver) {
-  Object* maybe_constructor = receiver->map()->GetConstructor();
-  if (!maybe_constructor->IsJSFunction()) return NULL;
-  JSFunction* constructor = JSFunction::cast(maybe_constructor);
-  if (!constructor->shared()->IsApiFunction()) return NULL;
-
-  Object* data_obj =
-     constructor->shared()->get_api_func_data()->access_check_info();
-  if (data_obj->IsUndefined(isolate)) return NULL;
-
-  return AccessCheckInfo::cast(data_obj);
-}
-
-
 void Isolate::ReportFailedAccessCheck(Handle<JSObject> receiver) {
   if (!thread_local_top()->failed_access_check_callback_) {
     return ScheduleThrow(*factory()->NewTypeError(MessageTemplate::kNoAccess));
   }
 
   DCHECK(receiver->IsAccessCheckNeeded());
   DCHECK(context());
 
   // Get the data object from access check info.
   HandleScope scope(this);
   Handle<Object> data;
   { DisallowHeapAllocation no_gc;
-    AccessCheckInfo* access_check_info = GetAccessCheckInfo(this, receiver);
+    AccessCheckInfo* access_check_info = AccessCheckInfo::Get(this, receiver);
     if (!access_check_info) {
       AllowHeapAllocation doesnt_matter_anymore;
       return ScheduleThrow(
           *factory()->NewTypeError(MessageTemplate::kNoAccess));
     }
     data = handle(access_check_info->data(), this);
   }
 
   // Leaving JavaScript.
   VMState<EXTERNAL> state(this);
@@ skipping 28 matching lines @@
       if (Context::cast(receiver_context)->security_token() ==
           native_context->security_token())
         return true;
     }
   }
 
   HandleScope scope(this);
   Handle<Object> data;
   v8::AccessCheckCallback callback = nullptr;
   { DisallowHeapAllocation no_gc;
-    AccessCheckInfo* access_check_info = GetAccessCheckInfo(this, receiver);
+    AccessCheckInfo* access_check_info = AccessCheckInfo::Get(this, receiver);
     if (!access_check_info) return false;
     Object* fun_obj = access_check_info->callback();
     callback = v8::ToCData<v8::AccessCheckCallback>(fun_obj);
     data = handle(access_check_info->data(), this);
   }
 
   LOG(this, ApiSecurityCheck());
 
   {
     // Leaving JavaScript.
@@ skipping 2166 matching lines @@
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8