Add basic API support for Map & Set

test/cctest/test-api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 21106 matching lines @@
   // add the testExtraShouldReturnFive export
   v8::Local<v8::Object> exports = env->GetExtrasExportsObject();
 
   auto func =
       exports->Get(v8_str("testExtraShouldReturnFive")).As<v8::Function>();
   auto undefined = v8::Undefined(isolate);
   auto result = func->Call(undefined, 0, {}).As<v8::Number>();
 
   CHECK(result->Value() == 5.0);
 }
+
+
+TEST(Map) {
+  v8::Isolate* isolate = CcTest::isolate();
+  v8::HandleScope handle_scope(isolate);
+  LocalContext env;
+
+  v8::Local<v8::Map> map = v8::Map::New(isolate);
+  CHECK(map->IsObject());
+  CHECK(map->IsMap());
+  CHECK_EQ(0, map->Size());
+
+  v8::Local<v8::Value> val = CompileRun("new Map([[1, 2], [3, 4]])");
+  CHECK(val->IsMap());
+  map = v8::Local<v8::Map>::Cast(val);
+  CHECK_EQ(2, map->Size());
+}
+
+
+TEST(Set) {
+  v8::Isolate* isolate = CcTest::isolate();
+  v8::HandleScope handle_scope(isolate);
+  LocalContext env;
+
+  v8::Local<v8::Set> set = v8::Set::New(isolate);
+  CHECK(set->IsObject());
+  CHECK(set->IsSet());
+  CHECK_EQ(0, set->Size());
+
+  v8::Local<v8::Value> val = CompileRun("new Set([1, 2])");
+  CHECK(val->IsSet());
+  set = v8::Local<v8::Set>::Cast(val);
+  CHECK_EQ(2, set->Size());
+}