chore: fix v8 deprecation warnings

atom/browser/api/atom_api_browser_window.cc

@@ -20,6 +20,7 @@
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
+#include "gin/converter.h"
 #include "native_mate/dictionary.h"
 #include "ui/gl/gpu_switching_manager.h"
 
@@ -311,7 +312,7 @@ void BrowserWindow::SetBrowserView(v8::Local<v8::Value> value) {
 
 void BrowserWindow::SetVibrancy(v8::Isolate* isolate,
                                 v8::Local<v8::Value> value) {
-  std::string type = mate::V8ToString(value);
+  std::string type = gin::V8ToString(isolate, value);
 
   auto* render_view_host = web_contents()->GetRenderViewHost();
   if (render_view_host) {

atom/browser/api/atom_api_session.cc

@@ -359,7 +359,7 @@ void DestroyGlobalHandle(v8::Isolate* isolate,
   if (!global_handle.IsEmpty()) {
     v8::Local<v8::Value> local_handle = global_handle.Get(isolate);
     if (local_handle->IsObject()) {
-      v8::Local<v8::Object> object = local_handle->ToObject();
+      v8::Local<v8::Object> object = local_handle->ToObject(isolate);
       void* ptr = object->GetAlignedPointerFromInternalField(0);
       if (!ptr)
         return;

atom/browser/api/atom_api_top_level_window.cc

@@ -20,6 +20,7 @@
 #include "atom/common/native_mate_converters/value_converter.h"
 #include "atom/common/options_switches.h"
 #include "electron/buildflags/buildflags.h"
+#include "gin/converter.h"
 #include "native_mate/handle.h"
 #include "native_mate/persistent_dictionary.h"
 
@@ -643,7 +644,8 @@ void TopLevelWindow::SetFocusable(bool focusable) {
 void TopLevelWindow::SetMenu(v8::Isolate* isolate, v8::Local<v8::Value> value) {
   mate::Handle<Menu> menu;
   if (value->IsObject() &&
-      mate::V8ToString(value->ToObject()->GetConstructorName()) == "Menu" &&
+      gin::V8ToString(
+          isolate, value->ToObject(isolate)->GetConstructorName()) == "Menu" &&
       mate::ConvertFromV8(isolate, value, &menu) && !menu.IsEmpty()) {
     menu_.Reset(isolate, menu.ToV8());
     window_->SetMenu(menu->model());
@@ -740,7 +742,7 @@ void TopLevelWindow::SetAutoHideCursor(bool auto_hide) {
 
 void TopLevelWindow::SetVibrancy(v8::Isolate* isolate,
                                  v8::Local<v8::Value> value) {
-  std::string type = mate::V8ToString(value);
+  std::string type = gin::V8ToString(isolate, value);
   window_->SetVibrancy(type);
 }
 

atom/browser/api/event_emitter.h

@@ -103,7 +103,8 @@ class EventEmitter : public Wrappable<T> {
     v8::HandleScope handle_scope(isolate());
     EmitEvent(isolate(), GetWrapper(), name, event, args...);
     return event->Get(StringToV8(isolate(), "defaultPrevented"))
-        ->BooleanValue();
+        ->BooleanValue(isolate()->GetCurrentContext())
+        .ToChecked();
   }
 
   DISALLOW_COPY_AND_ASSIGN(EventEmitter);

atom/common/api/atom_api_asar.cc

@@ -131,7 +131,7 @@ void InitAsarSupport(v8::Isolate* isolate,
     result = asar_init->Run(context).ToLocalChecked();
 
   // Initialize asar support.
-  CHECK(result->IsFunction());
+  DCHECK(result->IsFunction());
 
   v8::Local<v8::Value> args[] = {
       source,

atom/common/native_mate_converters/blink_converter.cc

@@ -12,6 +12,7 @@
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/native_web_keyboard_event.h"
+#include "gin/converter.h"
 #include "native_mate/dictionary.h"
 #include "third_party/blink/public/platform/web_input_event.h"
 #include "third_party/blink/public/platform/web_mouse_event.h"
@@ -41,7 +42,7 @@ struct Converter<base::char16> {
   static bool FromV8(v8::Isolate* isolate,
                      v8::Handle<v8::Value> val,
                      base::char16* out) {
-    base::string16 code = base::UTF8ToUTF16(V8ToString(val));
+    base::string16 code = base::UTF8ToUTF16(gin::V8ToString(isolate, val));
     if (code.length() != 1)
       return false;
     *out = code[0];
@@ -54,7 +55,7 @@ struct Converter<blink::WebInputEvent::Type> {
   static bool FromV8(v8::Isolate* isolate,
                      v8::Handle<v8::Value> val,
                      blink::WebInputEvent::Type* out) {
-    std::string type = base::ToLowerASCII(V8ToString(val));
+    std::string type = base::ToLowerASCII(gin::V8ToString(isolate, val));
     if (type == "mousedown")
       *out = blink::WebInputEvent::kMouseDown;
     else if (type == "mouseup")
@@ -92,7 +93,7 @@ struct Converter<blink::WebMouseEvent::Button> {
   static bool FromV8(v8::Isolate* isolate,
                      v8::Handle<v8::Value> val,
                      blink::WebMouseEvent::Button* out) {
-    std::string button = base::ToLowerASCII(V8ToString(val));
+    std::string button = base::ToLowerASCII(gin::V8ToString(isolate, val));
     if (button == "left")
       *out = blink::WebMouseEvent::Button::kLeft;
     else if (button == "middle")
@@ -110,7 +111,7 @@ struct Converter<blink::WebInputEvent::Modifiers> {
   static bool FromV8(v8::Isolate* isolate,
                      v8::Handle<v8::Value> val,
                      blink::WebInputEvent::Modifiers* out) {
-    std::string modifier = base::ToLowerASCII(V8ToString(val));
+    std::string modifier = base::ToLowerASCII(gin::V8ToString(isolate, val));
     if (modifier == "shift")
       *out = blink::WebInputEvent::kShiftKey;
     else if (modifier == "control" || modifier == "ctrl")
@@ -516,7 +517,7 @@ bool Converter<blink::WebReferrerPolicy>::FromV8(
     v8::Isolate* isolate,
     v8::Handle<v8::Value> val,
     blink::WebReferrerPolicy* out) {
-  std::string policy = base::ToLowerASCII(V8ToString(val));
+  std::string policy = base::ToLowerASCII(gin::V8ToString(isolate, val));
   if (policy == "default")
     *out = blink::kWebReferrerPolicyDefault;
   else if (policy == "unsafe-url")

atom/renderer/atom_render_frame_observer.cc

@@ -46,7 +46,7 @@ bool GetIPCObject(v8::Isolate* isolate,
     return false;
   if (value.IsEmpty() || !value->IsObject())
     return false;
-  *ipc = value->ToObject();
+  *ipc = value->ToObject(isolate);
   return true;
 }
 

atom/renderer/atom_renderer_client.cc

@@ -198,12 +198,13 @@ void AtomRendererClient::SetupMainWorldOverrides(
   std::string left = "(function (binding, require) {\n";
   std::string right = "\n})";
   auto source = v8::String::Concat(
-      mate::ConvertToV8(isolate, left)->ToString(),
-      v8::String::Concat(node::isolated_bundle_value.ToStringChecked(isolate),
-                         mate::ConvertToV8(isolate, right)->ToString()));
+      isolate, mate::ConvertToV8(isolate, left)->ToString(isolate),
+      v8::String::Concat(isolate,
+                         node::isolated_bundle_value.ToStringChecked(isolate),
+                         mate::ConvertToV8(isolate, right)->ToString(isolate)));
   auto result = RunScript(context, source);
 
-  CHECK(result->IsFunction());
+  DCHECK(result->IsFunction());
 
   auto binding = v8::Object::New(isolate);
   api::Initialize(binding, v8::Null(isolate), context, nullptr);

atom/renderer/atom_sandboxed_renderer_client.cc

@@ -19,6 +19,7 @@
 #include "base/path_service.h"
 #include "base/process/process_handle.h"
 #include "content/public/renderer/render_frame.h"
+#include "gin/converter.h"
 #include "native_mate/dictionary.h"
 #include "third_party/blink/public/web/blink.h"
 #include "third_party/blink/public/web/web_document.h"
@@ -52,7 +53,7 @@ v8::Local<v8::Object> GetModuleCache(v8::Isolate* isolate) {
     global.SetHidden(kModuleCacheKey, cache);
   }
 
-  return cache->ToObject();
+  return cache->ToObject(isolate);
 }
 
 // adapted from node.cc
@@ -60,7 +61,7 @@ v8::Local<v8::Value> GetBinding(v8::Isolate* isolate,
                                 v8::Local<v8::String> key,
                                 mate::Arguments* margs) {
   v8::Local<v8::Object> exports;
-  std::string module_key = mate::V8ToString(key);
+  std::string module_key = gin::V8ToString(isolate, key);
   mate::Dictionary cache(isolate, GetModuleCache(isolate));
 
   if (cache.Get(module_key.c_str(), &exports)) {
@@ -85,6 +86,12 @@ v8::Local<v8::Value> GetBinding(v8::Isolate* isolate,
   return exports;
 }
 
+v8::Local<v8::Value> CreatePreloadScript(v8::Isolate* isolate,
+                                         v8::Local<v8::String> preloadSrc) {
+  return RendererClientBase::RunScript(isolate->GetCurrentContext(),
+                                       preloadSrc);
+}
+
 class AtomSandboxedRenderFrameObserver : public AtomRenderFrameObserver {
  public:
   AtomSandboxedRenderFrameObserver(content::RenderFrame* render_frame,
@@ -134,7 +141,7 @@ void AtomSandboxedRendererClient::InitializeBindings(
   auto* isolate = context->GetIsolate();
   mate::Dictionary b(isolate, binding);
   b.SetMethod("get", GetBinding);
-  b.SetMethod("createPreloadScript", RunScript);
+  b.SetMethod("createPreloadScript", CreatePreloadScript);
 
   mate::Dictionary process = mate::Dictionary::CreateEmpty(isolate);
   b.Set("process", process);
@@ -184,12 +191,13 @@ void AtomSandboxedRendererClient::DidCreateScriptContext(
   std::string right = "\n})";
   // Compile the wrapper and run it to get the function object
   auto source = v8::String::Concat(
-      mate::ConvertToV8(isolate, left)->ToString(),
-      v8::String::Concat(node::preload_bundle_value.ToStringChecked(isolate),
-                         mate::ConvertToV8(isolate, right)->ToString()));
+      isolate, mate::ConvertToV8(isolate, left)->ToString(isolate),
+      v8::String::Concat(isolate,
+                         node::preload_bundle_value.ToStringChecked(isolate),
+                         mate::ConvertToV8(isolate, right)->ToString(isolate)));
   auto result = RunScript(context, source);
 
-  CHECK(result->IsFunction());
+  DCHECK(result->IsFunction());
   // Create and initialize the binding object
   auto binding = v8::Object::New(isolate);
   InitializeBindings(binding, context);
@@ -218,7 +226,7 @@ void AtomSandboxedRendererClient::InvokeIpcCallback(
     const std::string& callback_name,
     std::vector<v8::Handle<v8::Value>> args) {
   auto* isolate = context->GetIsolate();
-  auto binding_key = mate::ConvertToV8(isolate, kIpcKey)->ToString();
+  auto binding_key = mate::ConvertToV8(isolate, kIpcKey)->ToString(isolate);
   auto private_binding_key = v8::Private::ForApi(isolate, binding_key);
   auto global_object = context->Global();
   v8::Local<v8::Value> value;
@@ -226,8 +234,9 @@ void AtomSandboxedRendererClient::InvokeIpcCallback(
     return;
   if (value.IsEmpty() || !value->IsObject())
     return;
-  auto binding = value->ToObject();
-  auto callback_key = mate::ConvertToV8(isolate, callback_name)->ToString();
+  auto binding = value->ToObject(isolate);
+  auto callback_key =
+      mate::ConvertToV8(isolate, callback_name)->ToString(isolate);
   auto callback_value = binding->Get(callback_key);
   DCHECK(callback_value->IsFunction());  // set by sandboxed_renderer/init.js
   auto callback = v8::Handle<v8::Function>::Cast(callback_value);

atom/renderer/renderer_client_base.cc

@@ -277,7 +277,8 @@ v8::Local<v8::Context> RendererClientBase::GetContext(
     return frame->MainWorldScriptContext();
 }
 
-v8::Local<v8::Value> RunScript(v8::Local<v8::Context> context,
+v8::Local<v8::Value> RendererClientBase::RunScript(
+    v8::Local<v8::Context> context,
     v8::Local<v8::String> source) {
   auto maybe_script = v8::Script::Compile(context, source);
   v8::Local<v8::Script> script;

atom/renderer/renderer_client_base.h

@@ -40,7 +40,7 @@ class RendererClientBase : public content::ContentRendererClient {
   v8::Local<v8::Context> GetContext(blink::WebLocalFrame* frame,
                                     v8::Isolate* isolate) const;
   // Executes a given v8 Script
-  inline v8::Local<v8::Value> RunScript(v8::Local<v8::Context> context,
+  static v8::Local<v8::Value> RunScript(v8::Local<v8::Context> context,
                                         v8::Local<v8::String> source);
 
  protected:

native_mate/native_mate/converter.cc

@@ -10,17 +10,33 @@ using v8::Array;
 using v8::Boolean;
 using v8::External;
 using v8::Function;
+using v8::Int32;
 using v8::Integer;
 using v8::Isolate;
 using v8::Local;
+using v8::Maybe;
+using v8::MaybeLocal;
 using v8::Number;
 using v8::Object;
 using v8::Promise;
 using v8::String;
+using v8::Uint32;
 using v8::Value;
 
 namespace mate {
 
+namespace {
+
+template <typename T, typename U>
+bool FromMaybe(Maybe<T> maybe, U* out) {
+  if (maybe.IsNothing())
+    return false;
+  *out = static_cast<U>(maybe.FromJust());
+  return true;
+}
+
+}  // namespace
+
 Local<Value> Converter<bool>::ToV8(Isolate* isolate, bool val) {
   return v8::Boolean::New(isolate, val);
 }
@@ -28,7 +44,7 @@ Local<Value> Converter<bool>::ToV8(Isolate* isolate, bool val) {
 bool Converter<bool>::FromV8(Isolate* isolate, Local<Value> val, bool* out) {
   if (!val->IsBoolean())
     return false;
-  *out = val->BooleanValue();
+  *out = val.As<Boolean>()->Value();
   return true;
 }
 
@@ -43,8 +59,7 @@ bool Converter<unsigned long>::FromV8(Isolate* isolate,
                                       unsigned long* out) {
   if (!val->IsNumber())
     return false;
-  *out = val->IntegerValue();
-  return true;
+  return FromMaybe(val->IntegerValue(isolate->GetCurrentContext()), out);
 }
 #endif
 
@@ -57,7 +72,7 @@ bool Converter<int32_t>::FromV8(Isolate* isolate,
                                 int32_t* out) {
   if (!val->IsInt32())
     return false;
-  *out = val->Int32Value();
+  *out = val.As<Int32>()->Value();
   return true;
 }
 
@@ -70,7 +85,7 @@ bool Converter<uint32_t>::FromV8(Isolate* isolate,
                                  uint32_t* out) {
   if (!val->IsUint32())
     return false;
-  *out = val->Uint32Value();
+  *out = val.As<Uint32>()->Value();
   return true;
 }
 
@@ -85,8 +100,7 @@ bool Converter<int64_t>::FromV8(Isolate* isolate,
     return false;
   // Even though IntegerValue returns int64_t, JavaScript cannot represent
   // the full precision of int64_t, which means some rounding might occur.
-  *out = val->IntegerValue();
-  return true;
+  return FromMaybe(val->IntegerValue(isolate->GetCurrentContext()), out);
 }
 
 Local<Value> Converter<uint64_t>::ToV8(Isolate* isolate, uint64_t val) {
@@ -98,8 +112,7 @@ bool Converter<uint64_t>::FromV8(Isolate* isolate,
                                  uint64_t* out) {
   if (!val->IsNumber())
     return false;
-  *out = static_cast<uint64_t>(val->IntegerValue());
-  return true;
+  return FromMaybe(val->IntegerValue(isolate->GetCurrentContext()), out);
 }
 
 Local<Value> Converter<float>::ToV8(Isolate* isolate, float val) {
@@ -109,7 +122,7 @@ Local<Value> Converter<float>::ToV8(Isolate* isolate, float val) {
 bool Converter<float>::FromV8(Isolate* isolate, Local<Value> val, float* out) {
   if (!val->IsNumber())
     return false;
-  *out = static_cast<float>(val->NumberValue());
+  *out = static_cast<float>(val.As<Number>()->Value());
   return true;
 }
 
@@ -122,7 +135,7 @@ bool Converter<double>::FromV8(Isolate* isolate,
                                double* out) {
   if (!val->IsNumber())
     return false;
-  *out = val->NumberValue();
+  *out = val.As<Number>()->Value();
   return true;
 }
 
@@ -147,9 +160,10 @@ bool Converter<std::string>::FromV8(Isolate* isolate,
   if (!val->IsString())
     return false;
   Local<String> str = Local<String>::Cast(val);
-  int length = str->Utf8Length();
+  int length = str->Utf8Length(isolate);
   out->resize(length);
-  str->WriteUtf8(&(*out)[0], length, NULL, String::NO_NULL_TERMINATION);
+  str->WriteUtf8(isolate, &(*out)[0], length, NULL,
+                 String::NO_NULL_TERMINATION);
   return true;
 }
 
@@ -245,13 +259,4 @@ v8::Local<v8::String> StringToSymbol(v8::Isolate* isolate,
                                  static_cast<uint32_t>(val.length()));
 }
 
-std::string V8ToString(v8::Local<v8::Value> value) {
-  if (value.IsEmpty())
-    return std::string();
-  std::string result;
-  if (!ConvertFromV8(NULL, value, &result))
-    return std::string();
-  return result;
-}
-
 }  // namespace mate

native_mate/native_mate/converter.h

@@ -11,6 +11,7 @@
 #include <vector>
 
 #include "base/strings/string_piece.h"
+#include "gin/converter.h"
 #include "v8/include/v8.h"
 
 namespace mate {
@@ -136,8 +137,6 @@ struct Converter<std::string> {
 v8::Local<v8::String> StringToSymbol(v8::Isolate* isolate,
                                      const base::StringPiece& input);
 
-std::string V8ToString(v8::Local<v8::Value> value);
-
 template <>
 struct Converter<v8::Local<v8::Function>> {
   static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
@@ -276,13 +275,14 @@ struct Converter<std::map<std::string, T>> {
     if (!val->IsObject())
       return false;
 
-    v8::Local<v8::Object> dict = val->ToObject();
+    v8::Local<v8::Context> context = isolate->GetCurrentContext();
+    v8::Local<v8::Object> dict = val->ToObject(context).ToLocalChecked();
     v8::Local<v8::Array> keys = dict->GetOwnPropertyNames();
     for (uint32_t i = 0; i < keys->Length(); ++i) {
       v8::Local<v8::Value> key = keys->Get(i);
       T value;
       if (Converter<T>::FromV8(isolate, dict->Get(key), &value))
-        (*out)[V8ToString(key)] = std::move(value);
+        (*out)[gin::V8ToString(isolate, key)] = std::move(value);
     }
     return true;
   }

native_mate/native_mate/handle.h

@@ -13,15 +13,13 @@ namespace mate {
 // Currently we don't have a mechanism for retaining a mate::Wrappable object
 // in the C++ heap because strong references from C++ to V8 can cause memory
 // leaks.
-template<typename T>
+template <typename T>
 class Handle {
  public:
   Handle() : object_(NULL) {}
 
   Handle(v8::Local<v8::Object> wrapper, T* object)
-    : wrapper_(wrapper),
-      object_(object) {
-  }
+      : wrapper_(wrapper), object_(object) {}
 
   bool IsEmpty() const { return !object_; }
 
@@ -39,13 +37,14 @@ class Handle {
   T* object_;
 };
 
-template<typename T>
-struct Converter<mate::Handle<T> > {
+template <typename T>
+struct Converter<mate::Handle<T>> {
   static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                    const mate::Handle<T>& val) {
     return val.ToV8();
   }
-  static bool FromV8(v8::Isolate* isolate, v8::Local<v8::Value> val,
+  static bool FromV8(v8::Isolate* isolate,
+                     v8::Local<v8::Value> val,
                      mate::Handle<T>* out) {
     T* object = NULL;
     if (val->IsNull() || val->IsUndefined()) {
@@ -55,14 +54,15 @@ struct Converter<mate::Handle<T> > {
     if (!Converter<T*>::FromV8(isolate, val, &object)) {
       return false;
     }
-    *out = mate::Handle<T>(val->ToObject(), object);
+    v8::Local<v8::Context> context = isolate->GetCurrentContext();
+    *out = mate::Handle<T>(val->ToObject(context).ToLocalChecked(), object);
     return true;
   }
 };
 
 // This function is a convenient way to create a handle from a raw pointer
 // without having to write out the type of the object explicitly.
-template<typename T>
+template <typename T>
 mate::Handle<T> CreateHandle(v8::Isolate* isolate, T* object) {
   return mate::Handle<T>(object->GetWrapper(), object);
 }