nodejs · jkrems · Nov 9, 2017
diff --git a/common.gypi b/common.gypi
@@ -27,7 +27,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.11',
+    'v8_embedder_string': '-node.12',
 
     # Enable disassembler for `--print-code` v8 options
     'v8_enable_disassembler': 1,

diff --git a/deps/v8/include/v8.h b/deps/v8/include/v8.h
@@ -104,6 +104,7 @@ class String;
 class StringObject;
 class Symbol;
 class SymbolObject;
+class PrimitiveArray;
 class Private;
 class Uint32;
 class Utils;
@@ -978,6 +979,48 @@ class V8_EXPORT Data {
   Data();
 };
 
+/**
+ * This is an unfinished experimental feature, and is only exposed
+ * here for internal testing purposes. DO NOT USE.
+ *
+ * A container type that holds relevant metadata for module loading.
+ *
+ * This is passed back to the embedder as part of
+ * HostImportDynamicallyCallback for module loading.
+ */
+class V8_EXPORT ScriptOrModule {
+ public:
+  /**
+   * The name that was passed by the embedder as ResourceName to the
+   * ScriptOrigin. This can be either a v8::String or v8::Undefined.
+   */
+  Local<Value> GetResourceName();
+
+  /**
+   * The options that were passed by the embedder as HostDefinedOptions to
+   * the ScriptOrigin.
+   */
+  Local<PrimitiveArray> GetHostDefinedOptions();
+};
+
+/**
+ * This is an unfinished experimental feature, and is only exposed
+ * here for internal testing purposes. DO NOT USE.
+ *
+ * An array to hold Primitive values. This is used by the embedder to
+ * pass host defined options to the ScriptOptions during compilation.
+ *
+ * This is passed back to the embedder as part of
+ * HostImportDynamicallyCallback for module loading.
+ *
+ */
+class V8_EXPORT PrimitiveArray {
+ public:
+  static Local<PrimitiveArray> New(Isolate* isolate, int length);
+  int Length() const;
+  void Set(int index, Local<Primitive> item);
+  Local<Primitive> Get(int index);
+};
 
 /**
  * The optional attributes of ScriptOrigin.
@@ -1027,13 +1070,15 @@ class ScriptOrigin {
       Local<Value> source_map_url = Local<Value>(),
       Local<Boolean> resource_is_opaque = Local<Boolean>(),
       Local<Boolean> is_wasm = Local<Boolean>(),
-      Local<Boolean> is_module = Local<Boolean>());
+      Local<Boolean> is_module = Local<Boolean>(),
+      Local<PrimitiveArray> host_defined_options = Local<PrimitiveArray>());
 
   V8_INLINE Local<Value> ResourceName() const;
   V8_INLINE Local<Integer> ResourceLineOffset() const;
   V8_INLINE Local<Integer> ResourceColumnOffset() const;
   V8_INLINE Local<Integer> ScriptID() const;
   V8_INLINE Local<Value> SourceMapUrl() const;
+  V8_INLINE Local<PrimitiveArray> HostDefinedOptions() const;
   V8_INLINE ScriptOriginOptions Options() const { return options_; }
 
  private:
@@ -1043,6 +1088,7 @@ class ScriptOrigin {
   ScriptOriginOptions options_;
   Local<Integer> script_id_;
   Local<Value> source_map_url_;
+  Local<PrimitiveArray> host_defined_options_;
 };
 
 /**
@@ -1289,6 +1335,7 @@ class V8_EXPORT ScriptCompiler {
     Local<Integer> resource_column_offset;
     ScriptOriginOptions resource_options;
     Local<Value> source_map_url;
+    Local<PrimitiveArray> host_defined_options;
 
     // Cached data from previous compilation (if a kConsume*Cache flag is
     // set), or hold newly generated cache data (kProduce*Cache flags) are
@@ -6209,8 +6256,8 @@ typedef void (*DeprecatedCallCompletedCallback)();
  * embedder to load a module. This is used as part of the dynamic
  * import syntax.
  *
- * The referrer is the name of the file which calls the dynamic
- * import. The referrer can be used to resolve the module location.
+ * The referrer contains metadata about the script/module that calls
+ * import.
  *
  * The specifier is the name of the module that should be imported.
  *
@@ -6225,7 +6272,8 @@ typedef void (*DeprecatedCallCompletedCallback)();
  * that exception by returning an empty MaybeLocal.
  */
 typedef MaybeLocal<Promise> (*HostImportModuleDynamicallyCallback)(
-    Local<Context> context, Local<String> referrer, Local<String> specifier);
+    Local<Context> context, Local<ScriptOrModule> referrer,
+    Local<String> specifier);
 
 /**
  * PromiseHook with type kInit is called when a new promise is
@@ -9545,7 +9593,8 @@ ScriptOrigin::ScriptOrigin(Local<Value> resource_name,
                            Local<Integer> script_id,
                            Local<Value> source_map_url,
                            Local<Boolean> resource_is_opaque,
-                           Local<Boolean> is_wasm, Local<Boolean> is_module)
+                           Local<Boolean> is_wasm, Local<Boolean> is_module,
+                           Local<PrimitiveArray> host_defined_options)
     : resource_name_(resource_name),
       resource_line_offset_(resource_line_offset),
       resource_column_offset_(resource_column_offset),
@@ -9555,10 +9604,14 @@ ScriptOrigin::ScriptOrigin(Local<Value> resource_name,
                !is_wasm.IsEmpty() && is_wasm->IsTrue(),
                !is_module.IsEmpty() && is_module->IsTrue()),
       script_id_(script_id),
-      source_map_url_(source_map_url) {}
+      source_map_url_(source_map_url),
+      host_defined_options_(host_defined_options) {}
 
 Local<Value> ScriptOrigin::ResourceName() const { return resource_name_; }
 
+Local<PrimitiveArray> ScriptOrigin::HostDefinedOptions() const {
+  return host_defined_options_;
+}
 
 Local<Integer> ScriptOrigin::ResourceLineOffset() const {
   return resource_line_offset_;
@@ -9575,7 +9628,6 @@ Local<Integer> ScriptOrigin::ScriptID() const { return script_id_; }
 
 Local<Value> ScriptOrigin::SourceMapUrl() const { return source_map_url_; }
 
-
 ScriptCompiler::Source::Source(Local<String> string, const ScriptOrigin& origin,
                                CachedData* data)
     : source_string(string),
@@ -9584,9 +9636,9 @@ ScriptCompiler::Source::Source(Local<String> string, const ScriptOrigin& origin,
       resource_column_offset(origin.ResourceColumnOffset()),
       resource_options(origin.Options()),
       source_map_url(origin.SourceMapUrl()),
+      host_defined_options(origin.HostDefinedOptions()),
       cached_data(data) {}
 
-
 ScriptCompiler::Source::Source(Local<String> string,
                                CachedData* data)
     : source_string(string), cached_data(data) {}

diff --git a/deps/v8/src/api.cc b/deps/v8/src/api.cc
@@ -278,6 +278,8 @@ static ScriptOrigin GetScriptOriginForScript(i::Isolate* isolate,
                                              i::Handle<i::Script> script) {
   i::Handle<i::Object> scriptName(script->GetNameOrSourceURL(), isolate);
   i::Handle<i::Object> source_map_url(script->source_mapping_url(), isolate);
+  i::Handle<i::FixedArray> host_defined_options(script->host_defined_options(),
+                                                isolate);
   v8::Isolate* v8_isolate =
       reinterpret_cast<v8::Isolate*>(script->GetIsolate());
   ScriptOriginOptions options(script->origin_options());
@@ -290,7 +292,8 @@ static ScriptOrigin GetScriptOriginForScript(i::Isolate* isolate,
       Utils::ToLocal(source_map_url),
       v8::Boolean::New(v8_isolate, options.IsOpaque()),
       v8::Boolean::New(v8_isolate, script->type() == i::Script::TYPE_WASM),
-      v8::Boolean::New(v8_isolate, options.IsModule()));
+      v8::Boolean::New(v8_isolate, options.IsModule()),
+      Utils::ToLocal(host_defined_options));
   return origin;
 }
 
@@ -2082,13 +2085,68 @@ Local<Value> Script::Run() {
   RETURN_TO_LOCAL_UNCHECKED(Run(context), Value);
 }
 
+Local<Value> ScriptOrModule::GetResourceName() {
+  i::Handle<i::Script> obj = Utils::OpenHandle(this);
+  i::Isolate* isolate = obj->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  i::Handle<i::Object> val(obj->name(), isolate);
+  return ToApiHandle<Value>(val);
+}
+
+Local<PrimitiveArray> ScriptOrModule::GetHostDefinedOptions() {
+  i::Handle<i::Script> obj = Utils::OpenHandle(this);
+  i::Isolate* isolate = obj->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  i::Handle<i::FixedArray> val(obj->host_defined_options(), isolate);
+  return ToApiHandle<PrimitiveArray>(val);
+}
 
 Local<UnboundScript> Script::GetUnboundScript() {
   i::Handle<i::Object> obj = Utils::OpenHandle(this);
   return ToApiHandle<UnboundScript>(
       i::Handle<i::SharedFunctionInfo>(i::JSFunction::cast(*obj)->shared()));
 }
 
+// static
+Local<PrimitiveArray> PrimitiveArray::New(Isolate* v8_isolate, int length) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  Utils::ApiCheck(length >= 0, "v8::PrimitiveArray::New",
+                  "length must be equal or greater than zero");
+  i::Handle<i::FixedArray> array = isolate->factory()->NewFixedArray(length);
+  return ToApiHandle<PrimitiveArray>(array);
+}
+
+int PrimitiveArray::Length() const {
+  i::Handle<i::FixedArray> array = Utils::OpenHandle(this);
+  i::Isolate* isolate = array->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  return array->length();
+}
+
+void PrimitiveArray::Set(int index, Local<Primitive> item) {
+  i::Handle<i::FixedArray> array = Utils::OpenHandle(this);
+  i::Isolate* isolate = array->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  Utils::ApiCheck(index >= 0 && index < array->length(),
+                  "v8::PrimitiveArray::Set",
+                  "index must be greater than or equal to 0 and less than the "
+                  "array length");
+  i::Handle<i::Object> i_item = Utils::OpenHandle(*item);
+  array->set(index, *i_item);
+}
+
+Local<Primitive> PrimitiveArray::Get(int index) {
+  i::Handle<i::FixedArray> array = Utils::OpenHandle(this);
+  i::Isolate* isolate = array->GetIsolate();
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  Utils::ApiCheck(index >= 0 && index < array->length(),
+                  "v8::PrimitiveArray::Get",
+                  "index must be greater than or equal to 0 and less than the "
+                  "array length");
+  i::Handle<i::Object> i_item(array->get(index), isolate);
+  return ToApiHandle<Primitive>(i_item);
+}
 
 Module::Status Module::GetStatus() const {
   i::Handle<i::Module> self = Utils::OpenHandle(this);
@@ -2225,11 +2283,16 @@ MaybeLocal<UnboundScript> ScriptCompiler::CompileUnboundInternal(
     TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), "V8.CompileScript");
     i::Handle<i::Object> name_obj;
     i::Handle<i::Object> source_map_url;
+    i::Handle<i::FixedArray> host_defined_options =
+        isolate->factory()->empty_fixed_array();
     int line_offset = 0;
     int column_offset = 0;
     if (!source->resource_name.IsEmpty()) {
       name_obj = Utils::OpenHandle(*(source->resource_name));
     }
+    if (!source->host_defined_options.IsEmpty()) {
+      host_defined_options = Utils::OpenHandle(*(source->host_defined_options));
+    }
     if (!source->resource_line_offset.IsEmpty()) {
       line_offset = static_cast<int>(source->resource_line_offset->Value());
     }
@@ -2243,7 +2306,7 @@ MaybeLocal<UnboundScript> ScriptCompiler::CompileUnboundInternal(
     result = i::Compiler::GetSharedFunctionInfoForScript(
         str, name_obj, line_offset, column_offset, source->resource_options,
         source_map_url, isolate->native_context(), NULL, &script_data, options,
-        i::NOT_NATIVES_CODE);
+        i::NOT_NATIVES_CODE, host_defined_options);
     has_pending_exception = result.is_null();
     if (has_pending_exception && script_data != NULL) {
       // This case won't happen during normal operation; we have compiled
@@ -2508,6 +2571,10 @@ MaybeLocal<Script> ScriptCompiler::Compile(Local<Context> context,
   if (!origin.ResourceName().IsEmpty()) {
     script->set_name(*Utils::OpenHandle(*(origin.ResourceName())));
   }
+  if (!origin.HostDefinedOptions().IsEmpty()) {
+    script->set_host_defined_options(
+        *Utils::OpenHandle(*(origin.HostDefinedOptions())));
+  }
   if (!origin.ResourceLineOffset().IsEmpty()) {
     script->set_line_offset(
         static_cast<int>(origin.ResourceLineOffset()->Value()));
@@ -9828,7 +9895,8 @@ MaybeLocal<UnboundScript> debug::CompileInspectorScript(Isolate* v8_isolate,
         i::Handle<i::Object>(), isolate->native_context(), NULL, &script_data,
         ScriptCompiler::kNoCompileOptions,
         i::FLAG_expose_inspector_scripts ? i::NOT_NATIVES_CODE
-                                         : i::INSPECTOR_CODE);
+                                         : i::INSPECTOR_CODE,
+        i::Handle<i::FixedArray>());
     has_pending_exception = result.is_null();
     RETURN_ON_FAILED_EXECUTION(UnboundScript);
   }

diff --git a/deps/v8/src/api.h b/deps/v8/src/api.h
@@ -111,7 +111,10 @@ class RegisteredExtension {
   V(NativeWeakMap, JSWeakMap)                  \
   V(debug::GeneratorObject, JSGeneratorObject) \
   V(debug::Script, Script)                     \
-  V(Promise, JSPromise)
+  V(Promise, JSPromise)                        \
+  V(Primitive, Object)                         \
+  V(PrimitiveArray, FixedArray)                \
+  V(ScriptOrModule, Script)
 
 class Utils {
  public:
@@ -209,6 +212,12 @@ class Utils {
       v8::internal::Handle<v8::internal::JSWeakMap> obj);
   static inline Local<Function> CallableToLocal(
       v8::internal::Handle<v8::internal::JSReceiver> obj);
+  static inline Local<Primitive> ToLocalPrimitive(
+      v8::internal::Handle<v8::internal::Object> obj);
+  static inline Local<PrimitiveArray> ToLocal(
+      v8::internal::Handle<v8::internal::FixedArray> obj);
+  static inline Local<ScriptOrModule> ScriptOrModuleToLocal(
+      v8::internal::Handle<v8::internal::Script> obj);
 
 #define DECLARE_OPEN_HANDLE(From, To) \
   static inline v8::internal::Handle<v8::internal::To> \
@@ -325,6 +334,9 @@ MAKE_TO_LOCAL(Uint32ToLocal, Object, Uint32)
 MAKE_TO_LOCAL(ExternalToLocal, JSObject, External)
 MAKE_TO_LOCAL(NativeWeakMapToLocal, JSWeakMap, NativeWeakMap)
 MAKE_TO_LOCAL(CallableToLocal, JSReceiver, Function)
+MAKE_TO_LOCAL(ToLocalPrimitive, Object, Primitive)
+MAKE_TO_LOCAL(ToLocal, FixedArray, PrimitiveArray)
+MAKE_TO_LOCAL(ScriptOrModuleToLocal, Script, ScriptOrModule)
 
 #undef MAKE_TO_LOCAL_TYPED_ARRAY
 #undef MAKE_TO_LOCAL

diff --git a/deps/v8/src/bootstrapper.cc b/deps/v8/src/bootstrapper.cc
@@ -3539,7 +3539,8 @@ bool Bootstrapper::CompileNative(Isolate* isolate, Vector<const char> name,
   Handle<SharedFunctionInfo> function_info =
       Compiler::GetSharedFunctionInfoForScript(
           source, script_name, 0, 0, ScriptOriginOptions(), Handle<Object>(),
-          context, NULL, NULL, ScriptCompiler::kNoCompileOptions, natives_flag);
+          context, NULL, NULL, ScriptCompiler::kNoCompileOptions, natives_flag,
+          Handle<FixedArray>());
   if (function_info.is_null()) return false;
 
   DCHECK(context->IsNativeContext());
@@ -3602,7 +3603,7 @@ bool Genesis::CompileExtension(Isolate* isolate, v8::Extension* extension) {
     function_info = Compiler::GetSharedFunctionInfoForScript(
         source, script_name, 0, 0, ScriptOriginOptions(), Handle<Object>(),
         context, extension, NULL, ScriptCompiler::kNoCompileOptions,
-        EXTENSION_CODE);
+        EXTENSION_CODE, Handle<FixedArray>());
     if (function_info.is_null()) return false;
     cache->Add(name, function_info);
   }

diff --git a/deps/v8/src/compiler.cc b/deps/v8/src/compiler.cc
@@ -1192,7 +1192,8 @@ Handle<SharedFunctionInfo> Compiler::GetSharedFunctionInfoForScript(
     int column_offset, ScriptOriginOptions resource_options,
     Handle<Object> source_map_url, Handle<Context> context,
     v8::Extension* extension, ScriptData** cached_data,
-    ScriptCompiler::CompileOptions compile_options, NativesFlag natives) {
+    ScriptCompiler::CompileOptions compile_options, NativesFlag natives,
+    Handle<FixedArray> host_defined_options) {
   Isolate* isolate = source->GetIsolate();
   if (compile_options == ScriptCompiler::kNoCompileOptions) {
     cached_data = NULL;
@@ -1288,6 +1289,9 @@ Handle<SharedFunctionInfo> Compiler::GetSharedFunctionInfoForScript(
     if (!source_map_url.is_null()) {
       script->set_source_mapping_url(*source_map_url);
     }
+    if (!host_defined_options.is_null()) {
+      script->set_host_defined_options(*host_defined_options);
+    }
 
     // Compile the function and add it to the cache.
     ParseInfo parse_info(script);

diff --git a/deps/v8/src/compiler.h b/deps/v8/src/compiler.h
@@ -113,7 +113,7 @@ class V8_EXPORT_PRIVATE Compiler : public AllStatic {
       Handle<Object> source_map_url, Handle<Context> context,
       v8::Extension* extension, ScriptData** cached_data,
       ScriptCompiler::CompileOptions compile_options,
-      NativesFlag is_natives_code);
+      NativesFlag is_natives_code, Handle<FixedArray> host_defined_options);
 
   // Create a shared function info object for a Script that has already been
   // parsed while the script was being loaded from a streamed source.