Add basic API support for Map & Set

src/bootstrapper.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/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/code-stubs.h"
@@ skipping 1196 matching lines @@
 
     Handle<JSFunction> data_view_fun =
         InstallFunction(
             global, "DataView", JS_DATA_VIEW_TYPE,
             JSDataView::kSizeWithInternalFields,
             isolate->initial_object_prototype(),
             Builtins::kIllegal);
     native_context()->set_data_view_fun(*data_view_fun);
   }
 
-  // -- M a p
-  InstallFunction(global, "Map", JS_MAP_TYPE, JSMap::kSize,
-                  isolate->initial_object_prototype(), Builtins::kIllegal);
+  {  // -- M a p
+    Handle<JSFunction> js_map_fun = InstallFunction(
+        global, "Map", JS_MAP_TYPE, JSMap::kSize,
+        isolate->initial_object_prototype(), Builtins::kIllegal);
+    native_context()->set_js_map_map(js_map_fun->initial_map());

[jochen (gone - plz use gerrit), 2015/06/01 13:32:27]

this doesn't work :-/

the prototype of the Map() function is overwritten in collection.js which runs
after this code.

if you built without a snapshot and create a Map via the C++ API, the resulting
object's __proto__ will be Object.prototype

you should store the function in the native context, and read the initial map in
ConfigureGlobalObjects

[adamk, 2015/06/01 21:30:02]

Good eye, fix up for review at https://codereview.chromium.org/1161363002

+  }
 
-  // -- S e t
-  InstallFunction(global, "Set", JS_SET_TYPE, JSSet::kSize,
-                  isolate->initial_object_prototype(), Builtins::kIllegal);
+  {  // -- S e t
+    Handle<JSFunction> js_set_fun = InstallFunction(
+        global, "Set", JS_SET_TYPE, JSSet::kSize,
+        isolate->initial_object_prototype(), Builtins::kIllegal);
+    native_context()->set_js_set_map(js_set_fun->initial_map());
+  }
 
   {  // Set up the iterator result object
     STATIC_ASSERT(JSGeneratorObject::kResultPropertyCount == 2);
     Handle<JSFunction> object_function(native_context()->object_function());
     Handle<Map> iterator_result_map =
         Map::Create(isolate, JSGeneratorObject::kResultPropertyCount);
     DCHECK_EQ(JSGeneratorObject::kResultSize,
               iterator_result_map->instance_size());
     DCHECK_EQ(JSGeneratorObject::kResultPropertyCount,
               iterator_result_map->inobject_properties());
@@ skipping 1810 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 } }  // namespace v8::internal