gin/modules/console.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/modules/console.h"
   6
   7 #include <iostream>
   8
   9 #include "base/strings/string_util.h"
  10 #include "gin/arguments.h"
  11 #include "gin/converter.h"
  12 #include "gin/object_template_builder.h"
  13 #include "gin/per_isolate_data.h"
  14 #include "gin/public/wrapper_info.h"
  15
  16 using v8::ObjectTemplate;
  17
  18 namespace gin {
  19
  20 namespace {
  21
  22 void Log(Arguments* args) {
  23   std::vector<std::string> messages;
  24   if (!args->GetRemaining(&messages)) {
  25     args->ThrowError();
  26     return;
  27   }
  28   std::cout << base::JoinString(messages, " ") << std::endl;
  29 }
  30
  31 WrapperInfo g_wrapper_info = { kEmbedderNativeGin };
  32
  33 }  // namespace
  34
  35 const char Console::kModuleName[] = "console";
  36
  37 v8::Local<v8::Value> Console::GetModule(v8::Isolate* isolate) {
  38   PerIsolateData* data = PerIsolateData::From(isolate);
  39   v8::Local<ObjectTemplate> templ = data->GetObjectTemplate(&g_wrapper_info);
  40   if (templ.IsEmpty()) {
  41     templ = ObjectTemplateBuilder(isolate)
  42         .SetMethod("log", Log)
  43         .Build();
  44     data->SetObjectTemplate(&g_wrapper_info, templ);
  45   }
  46   return templ->NewInstance(isolate->GetCurrentContext()).ToLocalChecked();
  47 }
  48
  49 }  // namespace gin