gin/per_context_data.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "gin/per_context_data.h"
   6
   7 #include "base/logging.h"
   8 #include "gin/public/context_holder.h"
   9 #include "gin/public/wrapper_info.h"
  10
  11 namespace gin {
  12
  13 PerContextData::PerContextData(ContextHolder* context_holder,
  14                                v8::Local<v8::Context> context)
  15     : context_holder_(context_holder),
  16       runner_(NULL) {
  17   context->SetAlignedPointerInEmbedderData(
  18       kPerContextDataStartIndex + kEmbedderNativeGin, this);
  19 }
  20
  21 PerContextData::~PerContextData() {
  22   v8::HandleScope handle_scope(context_holder_->isolate());
  23   context_holder_->context()->SetAlignedPointerInEmbedderData(
  24       kPerContextDataStartIndex + kEmbedderNativeGin, NULL);
  25 }
  26
  27 // static
  28 PerContextData* PerContextData::From(v8::Local<v8::Context> context) {
  29   return static_cast<PerContextData*>(
  30       context->GetAlignedPointerFromEmbedderData(kEncodedValueIndex));
  31 }
  32
  33 }  // namespace gin