Added dictionary that can use objects as keys.

test/cctest/test-dictionary.cc

+// Copyright 2011 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
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "v8.h"
+
+#include "api.h"
+#include "debug.h"
+#include "execution.h"
+#include "factory.h"
+#include "macro-assembler.h"
+#include "objects.h"
+#include "global-handles.h"
+#include "cctest.h"
+
+using namespace v8::internal;
+
+static Handle<ObjectDictionary> NewObjectDictionary(int at_least_space_for) {
+  ASSERT(0 <= at_least_space_for);
+  CALL_HEAP_FUNCTION(Isolate::Current(),
+                     ObjectDictionary::Allocate(at_least_space_for),
+                     ObjectDictionary);
+}
+
+TEST(ObjectDictionary) {
+  v8::HandleScope scope;
+  LocalContext context;
+  Handle<ObjectDictionary> dict = NewObjectDictionary(23);
+  Handle<JSObject> a = FACTORY->NewJSArray(7);
+  Handle<JSObject> b = FACTORY->NewJSArray(11);
+  MaybeObject* result = dict->AddChecked(*a, *b);
+  CHECK(!result->IsFailure());
+  CHECK_NE(dict->FindEntry(*a), ObjectDictionary::kNotFound);
+  CHECK_EQ(dict->FindEntry(*b), ObjectDictionary::kNotFound);
+
+  // Keys still have to be valid after objects were moved.
+  HEAP->CollectGarbage(NEW_SPACE);
+  CHECK_NE(dict->FindEntry(*a), ObjectDictionary::kNotFound);
+  CHECK_EQ(dict->FindEntry(*b), ObjectDictionary::kNotFound);
+}