deps: V8: cherry-pick 0fd478bcdabd

Original commit message:

    [heap-profiler]: expose QueryObjects() to v8::HeapProfiler

    This allows embedders to use this API for testing memory leaks more
    reliably. See #50572 for an
    example about how the API can be used.

    Change-Id: Ic3d1268e2b331c37e8ec92997b764b9b5486f8c2
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5006373
    Reviewed-by: Camillo Bruni <[email protected]>
    Reviewed-by: Simon Zünd <[email protected]>
    Commit-Queue: Joyee Cheung <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#91123}

Refs: v8/v8@0fd478b
PR-URL: #50572
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Stephen Belanger <[email protected]>

Author: joyeecheung

deps/v8/include/v8-profiler.h

@@ -912,12 +912,22 @@ class V8_EXPORT EmbedderGraph {
   virtual ~EmbedderGraph() = default;
 };
 
+class QueryObjectPredicate {
+ public:
+  virtual ~QueryObjectPredicate() = default;
+  virtual bool Filter(v8::Local<v8::Object> object) = 0;
+};
+
 /**
  * Interface for controlling heap profiling. Instance of the
  * profiler can be retrieved using v8::Isolate::GetHeapProfiler.
  */
 class V8_EXPORT HeapProfiler {
  public:
+  void QueryObjects(v8::Local<v8::Context> context,
+                    QueryObjectPredicate* predicate,
+                    std::vector<v8::Global<v8::Object>>* objects);
+
   enum SamplingFlags {
     kSamplingNoFlags = 0,
     kSamplingForceGC = 1 << 0,

deps/v8/src/api/api.cc

@@ -11011,6 +11011,16 @@ int HeapProfiler::GetSnapshotCount() {
   return reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshotsCount();
 }
 
+void HeapProfiler::QueryObjects(Local<Context> v8_context,
+                                QueryObjectPredicate* predicate,
+                                std::vector<Global<Object>>* objects) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_context->GetIsolate());
+  i::HeapProfiler* profiler = reinterpret_cast<i::HeapProfiler*>(this);
+  DCHECK_EQ(isolate, profiler->isolate());
+  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
+  profiler->QueryObjects(Utils::OpenHandle(*v8_context), predicate, objects);
+}
+
 const HeapSnapshot* HeapProfiler::GetHeapSnapshot(int index) {
   return reinterpret_cast<const HeapSnapshot*>(
       reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshot(index));

deps/v8/src/debug/debug-interface.cc

@@ -1203,15 +1203,6 @@ v8::MaybeLocal<v8::Value> EvaluateGlobalForTesting(
   RETURN_ESCAPED(result);
 }
 
-void QueryObjects(v8::Local<v8::Context> v8_context,
-                  QueryObjectPredicate* predicate,
-                  std::vector<v8::Global<v8::Object>>* objects) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_context->GetIsolate());
-  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
-  isolate->heap_profiler()->QueryObjects(Utils::OpenHandle(*v8_context),
-                                         predicate, objects);
-}
-
 void GlobalLexicalScopeNames(v8::Local<v8::Context> v8_context,
                              std::vector<v8::Global<v8::String>>* names) {
   i::Handle<i::Context> context = Utils::OpenHandle(*v8_context);

deps/v8/src/debug/debug-interface.h

@@ -523,16 +523,6 @@ class V8_EXPORT_PRIVATE StackTraceIterator {
                                              bool throw_on_side_effect) = 0;
 };
 
-class QueryObjectPredicate {
- public:
-  virtual ~QueryObjectPredicate() = default;
-  virtual bool Filter(v8::Local<v8::Object> object) = 0;
-};
-
-void QueryObjects(v8::Local<v8::Context> context,
-                  QueryObjectPredicate* predicate,
-                  std::vector<v8::Global<v8::Object>>* objects);
-
 void GlobalLexicalScopeNames(v8::Local<v8::Context> context,
                              std::vector<v8::Global<v8::String>>* names);
 

deps/v8/src/inspector/v8-debugger.cc

@@ -8,6 +8,7 @@
 #include "include/v8-context.h"
 #include "include/v8-function.h"
 #include "include/v8-microtask-queue.h"
+#include "include/v8-profiler.h"
 #include "include/v8-util.h"
 #include "src/inspector/inspected-context.h"
 #include "src/inspector/protocol/Protocol.h"
@@ -37,7 +38,7 @@ void cleanupExpiredWeakPointers(Map& map) {
   }
 }
 
-class MatchPrototypePredicate : public v8::debug::QueryObjectPredicate {
+class MatchPrototypePredicate : public v8::QueryObjectPredicate {
  public:
   MatchPrototypePredicate(V8InspectorImpl* inspector,
                           v8::Local<v8::Context> context,
@@ -1004,7 +1005,7 @@ v8::Local<v8::Array> V8Debugger::queryObjects(v8::Local<v8::Context> context,
   v8::Isolate* isolate = context->GetIsolate();
   std::vector<v8::Global<v8::Object>> v8_objects;
   MatchPrototypePredicate predicate(m_inspector, context, prototype);
-  v8::debug::QueryObjects(context, &predicate, &v8_objects);
+  isolate->GetHeapProfiler()->QueryObjects(context, &predicate, &v8_objects);
 
   v8::MicrotasksScope microtasksScope(context,
                                       v8::MicrotasksScope::kDoNotRunMicrotasks);

deps/v8/src/profiler/heap-profiler.cc

@@ -245,7 +245,7 @@ Heap* HeapProfiler::heap() const { return ids_->heap(); }
 Isolate* HeapProfiler::isolate() const { return heap()->isolate(); }
 
 void HeapProfiler::QueryObjects(Handle<Context> context,
-                                debug::QueryObjectPredicate* predicate,
+                                v8::QueryObjectPredicate* predicate,
                                 std::vector<v8::Global<v8::Object>>* objects) {
   {
     HandleScope handle_scope(isolate());

deps/v8/src/profiler/heap-profiler.h

@@ -88,8 +88,7 @@ class HeapProfiler : public HeapObjectAllocationTracker {
 
   Isolate* isolate() const;
 
-  void QueryObjects(Handle<Context> context,
-                    debug::QueryObjectPredicate* predicate,
+  void QueryObjects(Handle<Context> context, QueryObjectPredicate* predicate,
                     std::vector<v8::Global<v8::Object>>* objects);
 
  private:

deps/v8/test/cctest/test-heap-profiler.cc

@@ -30,6 +30,7 @@
 #include <ctype.h>
 
 #include <memory>
+#include <vector>
 
 #include "include/v8-function.h"
 #include "include/v8-json.h"
@@ -4060,6 +4061,67 @@ TEST(SamplingHeapProfilerSampleDuringDeopt) {
   heap_profiler->StopSamplingHeapProfiler();
 }
 
+namespace {
+class TestQueryObjectPredicate : public v8::QueryObjectPredicate {
+ public:
+  TestQueryObjectPredicate(v8::Local<v8::Context> context,
+                           v8::Local<v8::Symbol> symbol)
+      : context_(context), symbol_(symbol) {}
+
+  bool Filter(v8::Local<v8::Object> object) override {
+    return object->HasOwnProperty(context_, symbol_).FromMaybe(false);
+  }
+
+ private:
+  v8::Local<v8::Context> context_;
+  v8::Local<v8::Symbol> symbol_;
+};
+
+class IncludeAllQueryObjectPredicate : public v8::QueryObjectPredicate {
+ public:
+  IncludeAllQueryObjectPredicate() {}
+  bool Filter(v8::Local<v8::Object> object) override { return true; }
+};
+}  // anonymous namespace
+
+TEST(QueryObjects) {
+  LocalContext env;
+  v8::Isolate* isolate = env->GetIsolate();
+  v8::HandleScope scope(isolate);
+  v8::Local<v8::Context> context = env.local();
+
+  v8::Local<v8::Symbol> sym =
+      v8::Symbol::New(isolate, v8_str("query_object_test"));
+  context->Global()->Set(context, v8_str("test_symbol"), sym).Check();
+  v8::Local<v8::Value> arr = CompileRun(R"(
+      const arr = [];
+      for (let i = 0; i < 10; ++i) {
+        arr.push({[test_symbol]: true});
+      }
+      arr;
+    )");
+  context->Global()->Set(context, v8_str("arr"), arr).Check();
+  v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
+
+  {
+    TestQueryObjectPredicate predicate(context, sym);
+    std::vector<v8::Global<v8::Object>> out;
+    heap_profiler->QueryObjects(context, &predicate, &out);
+
+    CHECK_EQ(out.size(), 10);
+    for (size_t i = 0; i < out.size(); ++i) {
+      CHECK(out[i].Get(isolate)->HasOwnProperty(context, sym).FromMaybe(false));
+    }
+  }
+
+  {
+    IncludeAllQueryObjectPredicate predicate;
+    std::vector<v8::Global<v8::Object>> out;
+    heap_profiler->QueryObjects(context, &predicate, &out);
+    CHECK_GE(out.size(), 10);
+  }
+}
+
 TEST(WeakReference) {
   v8::Isolate* isolate = CcTest::isolate();
   i::Isolate* i_isolate = CcTest::i_isolate();