nodejs
diff --git a/‎common.gypi
+1-1 b/‎common.gypi
+1-1
diff --git a/‎deps/v8/BUILD.bazel
-1 b/‎deps/v8/BUILD.bazel
-1
diff --git a/‎deps/v8/BUILD.gn
-1 b/‎deps/v8/BUILD.gn
-1
diff --git a/‎deps/v8/include/v8-embedder-heap.h
+10-21 b/‎deps/v8/include/v8-embedder-heap.h
+10-21
diff --git a/‎deps/v8/include/v8-initialization.h
+13-4 b/‎deps/v8/include/v8-initialization.h
+13-4
diff --git a/‎deps/v8/include/v8-internal.h
+2-2 b/‎deps/v8/include/v8-internal.h
+2-2
diff --git a/‎deps/v8/include/v8-local-handle.h
-4 b/‎deps/v8/include/v8-local-handle.h
-4
diff --git a/‎deps/v8/include/v8-object.h
+1-1 b/‎deps/v8/include/v8-object.h
+1-1
diff --git a/‎deps/v8/include/v8-profiler.h
+65-1 b/‎deps/v8/include/v8-profiler.h
+65-1
diff --git a/‎deps/v8/include/v8-template.h
+31-4 b/‎deps/v8/include/v8-template.h
+31-4
@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.12',
+    'v8_embedder_string': '-node.13',
 
     ##### V8 defaults for Node.js #####
 
 
@@ -740,7 +740,6 @@ filegroup(
         "src/builtins/function.tq",
         "src/builtins/growable-fixed-array.tq",
         "src/builtins/ic-callable.tq",
-        "src/builtins/ic-dynamic-check-maps.tq",
         "src/builtins/ic.tq",
         "src/builtins/internal-coverage.tq",
         "src/builtins/internal.tq",
 
@@ -1670,7 +1670,6 @@ torque_files = [
   "src/builtins/function.tq",
   "src/builtins/growable-fixed-array.tq",
   "src/builtins/ic-callable.tq",
-  "src/builtins/ic-dynamic-check-maps.tq",
   "src/builtins/ic.tq",
   "src/builtins/internal-coverage.tq",
   "src/builtins/internal.tq",
 
@@ -34,29 +34,22 @@ class V8_EXPORT EmbedderRootsHandler {
   virtual ~EmbedderRootsHandler() = default;
 
   /**
-   * Returns true if the TracedGlobal handle should be considered as root for
-   * the currently running non-tracing garbage collection and false otherwise.
-   * The default implementation will keep all TracedGlobal references as roots.
+   * Returns true if the |TracedReference| handle should be considered as root
+   * for the currently running non-tracing garbage collection and false
+   * otherwise. The default implementation will keep all |TracedReference|
+   * references as roots.
    *
    * If this returns false, then V8 may decide that the object referred to by
-   * such a handle is reclaimed. In that case:
-   * - No action is required if handles are used with destructors, i.e., by just
-   *   using |TracedGlobal|.
-   * - When run without destructors, i.e., by using |TracedReference|, V8 calls
-   *  |ResetRoot|.
+   * such a handle is reclaimed. In that case, V8 calls |ResetRoot()| for the
+   * |TracedReference|.
    *
-   * Note that the |handle| is different from the handle that the embedder holds
+   * Note that the `handle` is different from the handle that the embedder holds
    * for retaining the object. The embedder may use |WrapperClassId()| to
    * distinguish cases where it wants handles to be treated as roots from not
    * being treated as roots.
    */
   virtual bool IsRoot(const v8::TracedReference<v8::Value>& handle) = 0;
 
-  V8_DEPRECATED("See v8::TracedGlobal class comment.")
-  virtual bool IsRoot(const v8::TracedGlobal<v8::Value>& handle) {
-    return true;
-  }
-
   /**
    * Used in combination with |IsRoot|. Called by V8 when an
    * object that is backed by a handle is reclaimed by a non-tracing garbage
@@ -87,13 +80,11 @@ class V8_EXPORT EmbedderHeapTracer {
   };
 
   /**
-   * Interface for iterating through TracedGlobal handles.
+   * Interface for iterating through |TracedReference| handles.
    */
   class V8_EXPORT TracedGlobalHandleVisitor {
    public:
     virtual ~TracedGlobalHandleVisitor() = default;
-    V8_DEPRECATED("See v8::TracedGlobal class comment.")
-    virtual void VisitTracedGlobalHandle(const TracedGlobal<Value>& handle) {}
     virtual void VisitTracedReference(const TracedReference<Value>& handle) {}
   };
 
@@ -118,8 +109,8 @@ class V8_EXPORT EmbedderHeapTracer {
   virtual ~EmbedderHeapTracer() = default;
 
   /**
-   * Iterates all TracedGlobal handles created for the v8::Isolate the tracer is
-   * attached to.
+   * Iterates all |TracedReference| handles created for the |v8::Isolate| the
+   * tracer is attached to.
    */
   void IterateTracedGlobalHandles(TracedGlobalHandleVisitor* visitor);
 
@@ -194,8 +185,6 @@ class V8_EXPORT EmbedderHeapTracer {
    */
   virtual bool IsRootForNonTracingGC(
       const v8::TracedReference<v8::Value>& handle);
-  V8_DEPRECATED("See v8::TracedGlobal class comment.")
-  virtual bool IsRootForNonTracingGC(const v8::TracedGlobal<v8::Value>& handle);
 
   /**
    * See documentation on EmbedderRootsHandler.
 
@@ -8,10 +8,11 @@
 #include <stddef.h>
 #include <stdint.h>
 
-#include "v8-internal.h"  // NOLINT(build/include_directory)
-#include "v8-isolate.h"   // NOLINT(build/include_directory)
-#include "v8-platform.h"  // NOLINT(build/include_directory)
-#include "v8config.h"     // NOLINT(build/include_directory)
+#include "v8-callbacks.h"  // NOLINT(build/include_directory)
+#include "v8-internal.h"   // NOLINT(build/include_directory)
+#include "v8-isolate.h"    // NOLINT(build/include_directory)
+#include "v8-platform.h"   // NOLINT(build/include_directory)
+#include "v8config.h"      // NOLINT(build/include_directory)
 
 // We reserve the V8_* prefix for macros defined in V8 public API and
 // assume there are no name conflicts with the embedder's code.
@@ -275,6 +276,14 @@ class V8_EXPORT V8 {
       UnhandledExceptionCallback unhandled_exception_callback);
 #endif
 
+  /**
+   * Allows the host application to provide a callback that will be called when
+   * v8 has encountered a fatal failure to allocate memory and is about to
+   * terminate.
+   */
+
+  static void SetFatalMemoryErrorCallback(OOMErrorCallback oom_error_callback);
+
   /**
    * Get statistics about the shared memory usage.
    */
 
@@ -365,8 +365,8 @@ class Internals {
 
   static const uint32_t kNumIsolateDataSlots = 4;
   static const int kStackGuardSize = 7 * kApiSystemPointerSize;
-  static const int kBuiltinTier0EntryTableSize = 13 * kApiSystemPointerSize;
-  static const int kBuiltinTier0TableSize = 13 * kApiSystemPointerSize;
+  static const int kBuiltinTier0EntryTableSize = 10 * kApiSystemPointerSize;
+  static const int kBuiltinTier0TableSize = 10 * kApiSystemPointerSize;
 
   // IsolateData layout guarantees.
   static const int kIsolateCageBaseOffset = 0;
 
@@ -46,8 +46,6 @@ class String;
 template <class F>
 class Traced;
 template <class F>
-class TracedGlobal;
-template <class F>
 class TracedReference;
 class TracedReferenceBase;
 class Utils;
@@ -312,8 +310,6 @@ class Local {
   template <class F>
   friend class Traced;
   template <class F>
-  friend class TracedGlobal;
-  template <class F>
   friend class BasicTracedReference;
   template <class F>
   friend class TracedReference;
 
@@ -493,7 +493,7 @@ class V8_EXPORT Object : public Value {
     return object.val_->GetAlignedPointerFromInternalField(index);
   }
 
-  /** Same as above, but works for TracedGlobal. */
+  /** Same as above, but works for TracedReference. */
   V8_INLINE static void* GetAlignedPointerFromInternalField(
       const BasicTracedReference<Object>& object, int index) {
     return object->GetAlignedPointerFromInternalField(index);
 
@@ -28,6 +28,7 @@ enum StateTag : int;
 
 using NativeObject = void*;
 using SnapshotObjectId = uint32_t;
+using ProfilerId = uint32_t;
 
 struct CpuProfileDeoptFrame {
   int script_id;
@@ -273,15 +274,33 @@ enum class CpuProfilingStatus {
   kErrorTooManyProfilers
 };
 
+/**
+ * Result from StartProfiling returning the Profiling Status, and
+ * id of the started profiler, or 0 if profiler is not started
+ */
+struct CpuProfilingResult {
+  const ProfilerId id;
+  const CpuProfilingStatus status;
+};
+
 /**
  * Delegate for when max samples reached and samples are discarded.
  */
 class V8_EXPORT DiscardedSamplesDelegate {
  public:
-  DiscardedSamplesDelegate() {}
+  DiscardedSamplesDelegate() = default;
 
   virtual ~DiscardedSamplesDelegate() = default;
   virtual void Notify() = 0;
+
+  ProfilerId GetId() const { return profiler_id_; }
+
+ private:
+  friend internal::CpuProfile;
+
+  void SetId(ProfilerId id) { profiler_id_ = id; }
+
+  ProfilerId profiler_id_;
 };
 
 /**
@@ -371,6 +390,45 @@ class V8_EXPORT CpuProfiler {
    */
   void SetUsePreciseSampling(bool);
 
+  /**
+   * Starts collecting a CPU profile. Several profiles may be collected at once.
+   * Generates an anonymous profiler, without a String identifier.
+   */
+  CpuProfilingResult Start(
+      CpuProfilingOptions options,
+      std::unique_ptr<DiscardedSamplesDelegate> delegate = nullptr);
+
+  /**
+   * Starts collecting a CPU profile. Title may be an empty string. Several
+   * profiles may be collected at once. Attempts to start collecting several
+   * profiles with the same title are silently ignored.
+   */
+  CpuProfilingResult Start(
+      Local<String> title, CpuProfilingOptions options,
+      std::unique_ptr<DiscardedSamplesDelegate> delegate = nullptr);
+
+  /**
+   * Starts profiling with the same semantics as above, except with expanded
+   * parameters.
+   *
+   * |record_samples| parameter controls whether individual samples should
+   * be recorded in addition to the aggregated tree.
+   *
+   * |max_samples| controls the maximum number of samples that should be
+   * recorded by the profiler. Samples obtained after this limit will be
+   * discarded.
+   */
+  CpuProfilingResult Start(
+      Local<String> title, CpuProfilingMode mode, bool record_samples = false,
+      unsigned max_samples = CpuProfilingOptions::kNoSampleLimit);
+
+  /**
+   * The same as StartProfiling above, but the CpuProfilingMode defaults to
+   * kLeafNodeLineNumbers mode, which was the previous default behavior of the
+   * profiler.
+   */
+  CpuProfilingResult Start(Local<String> title, bool record_samples = false);
+
   /**
    * Starts collecting a CPU profile. Title may be an empty string. Several
    * profiles may be collected at once. Attempts to start collecting several
@@ -394,6 +452,7 @@ class V8_EXPORT CpuProfiler {
   CpuProfilingStatus StartProfiling(
       Local<String> title, CpuProfilingMode mode, bool record_samples = false,
       unsigned max_samples = CpuProfilingOptions::kNoSampleLimit);
+
   /**
    * The same as StartProfiling above, but the CpuProfilingMode defaults to
    * kLeafNodeLineNumbers mode, which was the previous default behavior of the
@@ -402,6 +461,11 @@ class V8_EXPORT CpuProfiler {
   CpuProfilingStatus StartProfiling(Local<String> title,
                                     bool record_samples = false);
 
+  /**
+   * Stops collecting CPU profile with a given id and returns it.
+   */
+  CpuProfile* Stop(ProfilerId id);
+
   /**
    * Stops collecting CPU profile with a given title and returns it.
    * If the title given is empty, finishes the last profile started.
 
@@ -89,19 +89,33 @@ class V8_EXPORT Template : public Data {
    *   defined by FunctionTemplate::HasInstance()), an implicit TypeError is
    *   thrown and no callback is invoked.
    */
+  V8_DEPRECATED("Do signature check in accessor")
+  void SetNativeDataProperty(
+      Local<String> name, AccessorGetterCallback getter,
+      AccessorSetterCallback setter, Local<Value> data,
+      PropertyAttribute attribute, Local<AccessorSignature> signature,
+      AccessControl settings = DEFAULT,
+      SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
+      SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
+  V8_DEPRECATED("Do signature check in accessor")
+  void SetNativeDataProperty(
+      Local<Name> name, AccessorNameGetterCallback getter,
+      AccessorNameSetterCallback setter, Local<Value> data,
+      PropertyAttribute attribute, Local<AccessorSignature> signature,
+      AccessControl settings = DEFAULT,
+      SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
+      SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
   void SetNativeDataProperty(
       Local<String> name, AccessorGetterCallback getter,
       AccessorSetterCallback setter = nullptr,
       Local<Value> data = Local<Value>(), PropertyAttribute attribute = None,
-      Local<AccessorSignature> signature = Local<AccessorSignature>(),
       AccessControl settings = DEFAULT,
       SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
       SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
   void SetNativeDataProperty(
       Local<Name> name, AccessorNameGetterCallback getter,
       AccessorNameSetterCallback setter = nullptr,
       Local<Value> data = Local<Value>(), PropertyAttribute attribute = None,
-      Local<AccessorSignature> signature = Local<AccessorSignature>(),
       AccessControl settings = DEFAULT,
       SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
       SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
@@ -813,20 +827,33 @@ class V8_EXPORT ObjectTemplate : public Template {
    *   defined by FunctionTemplate::HasInstance()), an implicit TypeError is
    *   thrown and no callback is invoked.
    */
+  V8_DEPRECATED("Do signature check in accessor")
+  void SetAccessor(
+      Local<String> name, AccessorGetterCallback getter,
+      AccessorSetterCallback setter, Local<Value> data, AccessControl settings,
+      PropertyAttribute attribute, Local<AccessorSignature> signature,
+      SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
+      SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
+  V8_DEPRECATED("Do signature check in accessor")
+  void SetAccessor(
+      Local<Name> name, AccessorNameGetterCallback getter,
+      AccessorNameSetterCallback setter, Local<Value> data,
+      AccessControl settings, PropertyAttribute attribute,
+      Local<AccessorSignature> signature,
+      SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
+      SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
   void SetAccessor(
       Local<String> name, AccessorGetterCallback getter,
       AccessorSetterCallback setter = nullptr,
       Local<Value> data = Local<Value>(), AccessControl settings = DEFAULT,
       PropertyAttribute attribute = None,
-      Local<AccessorSignature> signature = Local<AccessorSignature>(),
       SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
       SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
   void SetAccessor(
       Local<Name> name, AccessorNameGetterCallback getter,
       AccessorNameSetterCallback setter = nullptr,
       Local<Value> data = Local<Value>(), AccessControl settings = DEFAULT,
       PropertyAttribute attribute = None,
-      Local<AccessorSignature> signature = Local<AccessorSignature>(),
       SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
       SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
Original file line number	Diff line number	Diff line change
`@@ -493,7 +493,7 @@ class V8_EXPORT Object : public Value {`
`493`	`493`	`return object.val_->GetAlignedPointerFromInternalField(index);`
`494`	`494`	`}`
`495`	`495`
`496`		`- /** Same as above, but works for TracedGlobal. */`
	`496`	`+ /** Same as above, but works for TracedReference. */`
`497`	`497`	`V8_INLINE static void* GetAlignedPointerFromInternalField(`
`498`	`498`	`const BasicTracedReference<Object>& object, int index) {`
`499`	`499`	`return object->GetAlignedPointerFromInternalField(index);`