[modules] Partial scope info support of modules

src/factory.cc

 // Copyright 2014 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/factory.h"
 
 #include "src/accessors.h"
 #include "src/allocation-site-scopes.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 1375 matching lines @@
 }
 
 
 Handle<ScopeInfo> Factory::NewScopeInfo(int length) {
   Handle<FixedArray> array = NewFixedArray(length, TENURED);
   array->set_map_no_write_barrier(*scope_info_map());
   Handle<ScopeInfo> scope_info = Handle<ScopeInfo>::cast(array);
   return scope_info;
 }
 
+Handle<ModuleInfo> Factory::NewModuleInfo() {
+  Handle<FixedArray> array = NewFixedArray(2, TENURED);

[adamk, 2016/08/26 16:54:44]

More magic constants...I think this one should be a constant on ModuleInfo.

+  array->set_map_no_write_barrier(*module_info_map());
+  Handle<ModuleInfo> module_info = Handle<ModuleInfo>::cast(array);
+  return module_info;
+}
 
 Handle<JSObject> Factory::NewExternal(void* value) {
   Handle<Foreign> foreign = NewForeign(static_cast<Address>(value));
   Handle<JSObject> external = NewJSObjectFromMap(external_map());
   external->SetInternalField(0, *foreign);
   return external;
 }
 
 
 Handle<Code> Factory::NewCodeRaw(int object_size, bool immovable) {
@@ skipping 1099 matching lines @@
     Handle<AccessorInfo> prototype =
         Accessors::FunctionPrototypeInfo(isolate(), attribs);
     AccessorConstantDescriptor d(Handle<Name>(Name::cast(prototype->name())),
                                  prototype, attribs);
     map->AppendDescriptor(&d);
   }
 }
 
 }  // namespace internal
 }  // namespace v8