Revert "Support ES6 Map and Set in heap profiler"

This reverts commit 47f86e06 due to some weird (likely unrelated) compilation errors.

BUG=v8:3368
TBR=rossberg

Review URL: https://codereview.chromium.org/380153002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22312 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/heap-snapshot-generator.cc

@@ -1097,16 +1097,11 @@ bool V8HeapExplorer::ExtractReferencesPass1(int entry, HeapObject* obj) {
     ExtractJSGlobalProxyReferences(entry, JSGlobalProxy::cast(obj));
   } else if (obj->IsJSArrayBuffer()) {
     ExtractJSArrayBufferReferences(entry, JSArrayBuffer::cast(obj));
-  } else if (obj->IsJSObject()) {
-    if (obj->IsJSWeakSet()) {
+  } else if (obj->IsJSWeakSet()) {
     ExtractJSWeakCollectionReferences(entry, JSWeakSet::cast(obj));
   } else if (obj->IsJSWeakMap()) {
     ExtractJSWeakCollectionReferences(entry, JSWeakMap::cast(obj));
-    } else if (obj->IsJSSet()) {
-      ExtractJSCollectionReferences(entry, JSSet::cast(obj));
-    } else if (obj->IsJSMap()) {
-      ExtractJSCollectionReferences(entry, JSMap::cast(obj));
-    }
+  } else if (obj->IsJSObject()) {
     ExtractJSObjectReferences(entry, JSObject::cast(obj));
   } else if (obj->IsString()) {
     ExtractStringReferences(entry, String::cast(obj));
@@ -1265,13 +1260,6 @@ void V8HeapExplorer::ExtractSymbolReferences(int entry, Symbol* symbol) {
 }
 
 
-void V8HeapExplorer::ExtractJSCollectionReferences(int entry,
-                                                   JSCollection* collection) {
-  SetInternalReference(collection, entry, "table", collection->table(),
-                       JSCollection::kTableOffset);
-}
-
-
 void V8HeapExplorer::ExtractJSWeakCollectionReferences(
     int entry, JSWeakCollection* collection) {
   MarkAsWeakContainer(collection->table());

src/heap-snapshot-generator.h

@@ -370,7 +370,6 @@ class V8HeapExplorer : public HeapEntriesAllocator {
   void ExtractJSObjectReferences(int entry, JSObject* js_obj);
   void ExtractStringReferences(int entry, String* obj);
   void ExtractSymbolReferences(int entry, Symbol* symbol);
-  void ExtractJSCollectionReferences(int entry, JSCollection* collection);
   void ExtractJSWeakCollectionReferences(int entry,
                                          JSWeakCollection* collection);
   void ExtractContextReferences(int entry, Context* context);

src/objects-inl.h

@@ -6032,7 +6032,8 @@ void JSProxy::InitializeBody(int object_size, Object* value) {
 }
 
 
-ACCESSORS(JSCollection, table, Object, kTableOffset)
+ACCESSORS(JSSet, table, Object, kTableOffset)
+ACCESSORS(JSMap, table, Object, kTableOffset)
 
 
 #define ORDERED_HASH_TABLE_ITERATOR_ACCESSORS(name, type, offset)    \

src/objects.h

@@ -44,7 +44,6 @@
 //         - JSArrayBufferView
 //           - JSTypedArray
 //           - JSDataView
-//         - JSCollection
 //         - JSSet
 //         - JSMap
 //         - JSSetIterator
@@ -10079,42 +10078,41 @@ class JSFunctionProxy: public JSProxy {
 };
 
 
-class JSCollection : public JSObject {
+// The JSSet describes EcmaScript Harmony sets
+class JSSet: public JSObject {
  public:
-  // [table]: the backing hash table
+  // [set]: the backing hash set containing keys.
   DECL_ACCESSORS(table, Object)
 
-  static const int kTableOffset = JSObject::kHeaderSize;
-  static const int kSize = kTableOffset + kPointerSize;
-
- private:
-  DISALLOW_IMPLICIT_CONSTRUCTORS(JSCollection);
-};
-
-
-// The JSSet describes EcmaScript Harmony sets
-class JSSet : public JSCollection {
- public:
   DECLARE_CAST(JSSet)
 
   // Dispatched behavior.
   DECLARE_PRINTER(JSSet)
   DECLARE_VERIFIER(JSSet)
 
+  static const int kTableOffset = JSObject::kHeaderSize;
+  static const int kSize = kTableOffset + kPointerSize;
+
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSSet);
 };
 
 
 // The JSMap describes EcmaScript Harmony maps
-class JSMap : public JSCollection {
+class JSMap: public JSObject {
  public:
+  // [table]: the backing hash table mapping keys to values.
+  DECL_ACCESSORS(table, Object)
+
   DECLARE_CAST(JSMap)
 
   // Dispatched behavior.
   DECLARE_PRINTER(JSMap)
   DECLARE_VERIFIER(JSMap)
 
+  static const int kTableOffset = JSObject::kHeaderSize;
+  static const int kSize = kTableOffset + kPointerSize;
+
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSMap);
 };

test/cctest/test-heap-profiler.cc

@@ -502,10 +502,9 @@ TEST(HeapSnapshotWeakCollection) {
   v8::HandleScope scope(env->GetIsolate());
   v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
 
-  CompileRun(
-      "k = {}; v = {}; s = 'str';\n"
-      "ws = new WeakSet(); ws.add(k); ws.add(v); ws[s] = s;\n"
-      "wm = new WeakMap(); wm.set(k, v); wm[s] = s;\n");
+  CompileRun("k = {}; v = {};\n"
+             "ws = new WeakSet(); ws.add(k); ws.add(v);\n"
+             "wm = new WeakMap(); wm.set(k, v);\n");
   const v8::HeapSnapshot* snapshot =
       heap_profiler->TakeHeapSnapshot(v8_str("WeakCollections"));
   CHECK(ValidateSnapshot(snapshot));
@@ -516,9 +515,6 @@ TEST(HeapSnapshotWeakCollection) {
   const v8::HeapGraphNode* v =
       GetProperty(global, v8::HeapGraphEdge::kProperty, "v");
   CHECK_NE(NULL, v);
-  const v8::HeapGraphNode* s =
-      GetProperty(global, v8::HeapGraphEdge::kProperty, "s");
-  CHECK_NE(NULL, s);
 
   const v8::HeapGraphNode* ws =
       GetProperty(global, v8::HeapGraphEdge::kProperty, "ws");
@@ -539,10 +535,6 @@ TEST(HeapSnapshotWeakCollection) {
     }
   }
   CHECK_EQ(1, weak_entries);
-  const v8::HeapGraphNode* ws_s =
-      GetProperty(ws, v8::HeapGraphEdge::kProperty, "str");
-  CHECK_NE(NULL, ws_s);
-  CHECK_EQ(static_cast<int>(s->GetId()), static_cast<int>(ws_s->GetId()));
 
   const v8::HeapGraphNode* wm =
       GetProperty(global, v8::HeapGraphEdge::kProperty, "wm");
@@ -564,85 +556,6 @@ TEST(HeapSnapshotWeakCollection) {
     }
   }
   CHECK_EQ(2, weak_entries);
-  const v8::HeapGraphNode* wm_s =
-      GetProperty(wm, v8::HeapGraphEdge::kProperty, "str");
-  CHECK_NE(NULL, wm_s);
-  CHECK_EQ(static_cast<int>(s->GetId()), static_cast<int>(wm_s->GetId()));
-}
-
-
-TEST(HeapSnapshotCollection) {
-  i::FLAG_harmony_collections = true;
-
-  LocalContext env;
-  v8::HandleScope scope(env->GetIsolate());
-  v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
-
-  CompileRun(
-      "k = {}; v = {}; s = 'str';\n"
-      "set = new Set(); set.add(k); set.add(v); set[s] = s;\n"
-      "map = new Map(); map.set(k, v); map[s] = s;\n");
-  const v8::HeapSnapshot* snapshot =
-      heap_profiler->TakeHeapSnapshot(v8_str("Collections"));
-  CHECK(ValidateSnapshot(snapshot));
-  const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
-  const v8::HeapGraphNode* k =
-      GetProperty(global, v8::HeapGraphEdge::kProperty, "k");
-  CHECK_NE(NULL, k);
-  const v8::HeapGraphNode* v =
-      GetProperty(global, v8::HeapGraphEdge::kProperty, "v");
-  CHECK_NE(NULL, v);
-  const v8::HeapGraphNode* s =
-      GetProperty(global, v8::HeapGraphEdge::kProperty, "s");
-  CHECK_NE(NULL, s);
-
-  const v8::HeapGraphNode* set =
-      GetProperty(global, v8::HeapGraphEdge::kProperty, "set");
-  CHECK_NE(NULL, set);
-  CHECK_EQ(v8::HeapGraphNode::kObject, set->GetType());
-  CHECK_EQ(v8_str("Set"), set->GetName());
-
-  const v8::HeapGraphNode* set_table =
-      GetProperty(set, v8::HeapGraphEdge::kInternal, "table");
-  CHECK_EQ(v8::HeapGraphNode::kArray, set_table->GetType());
-  CHECK_GT(set_table->GetChildrenCount(), 0);
-  int entries = 0;
-  for (int i = 0, count = set_table->GetChildrenCount(); i < count; ++i) {
-    const v8::HeapGraphEdge* prop = set_table->GetChild(i);
-    const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
-    if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
-      ++entries;
-    }
-  }
-  CHECK_EQ(2, entries);
-  const v8::HeapGraphNode* set_s =
-      GetProperty(set, v8::HeapGraphEdge::kProperty, "str");
-  CHECK_NE(NULL, set_s);
-  CHECK_EQ(static_cast<int>(s->GetId()), static_cast<int>(set_s->GetId()));
-
-  const v8::HeapGraphNode* map =
-      GetProperty(global, v8::HeapGraphEdge::kProperty, "map");
-  CHECK_NE(NULL, map);
-  CHECK_EQ(v8::HeapGraphNode::kObject, map->GetType());
-  CHECK_EQ(v8_str("Map"), map->GetName());
-
-  const v8::HeapGraphNode* map_table =
-      GetProperty(map, v8::HeapGraphEdge::kInternal, "table");
-  CHECK_EQ(v8::HeapGraphNode::kArray, map_table->GetType());
-  CHECK_GT(map_table->GetChildrenCount(), 0);
-  entries = 0;
-  for (int i = 0, count = map_table->GetChildrenCount(); i < count; ++i) {
-    const v8::HeapGraphEdge* prop = map_table->GetChild(i);
-    const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
-    if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
-      ++entries;
-    }
-  }
-  CHECK_EQ(2, entries);
-  const v8::HeapGraphNode* map_s =
-      GetProperty(map, v8::HeapGraphEdge::kProperty, "str");
-  CHECK_NE(NULL, map_s);
-  CHECK_EQ(static_cast<int>(s->GetId()), static_cast<int>(map_s->GetId()));
 }