upgrade node and swig

2025-03-18 22:41:01 -05:00
parent 31cda1b61d
commit 4ef2c342b5
1411 changed files with 45964 additions and 105826 deletions
--- a/linx64/include/node/v8-persistent-handle.h
+++ b/linx64/include/node/v8-persistent-handle.h
@@ -0,0 +1,575 @@
+// Copyright 2021 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef INCLUDE_V8_PERSISTENT_HANDLE_H_
+#define INCLUDE_V8_PERSISTENT_HANDLE_H_
+
+#include "v8-internal.h"            // NOLINT(build/include_directory)
+#include "v8-local-handle.h"        // NOLINT(build/include_directory)
+#include "v8-weak-callback-info.h"  // NOLINT(build/include_directory)
+#include "v8config.h"               // NOLINT(build/include_directory)
+
+namespace v8 {
+
+class Isolate;
+template <class K, class V, class T>
+class PersistentValueMapBase;
+template <class V, class T>
+class PersistentValueVector;
+template <class T>
+class Global;
+template <class T>
+class PersistentBase;
+template <class K, class V, class T>
+class PersistentValueMap;
+class Value;
+
+namespace api_internal {
+V8_EXPORT internal::Address* Eternalize(v8::Isolate* isolate, Value* handle);
+V8_EXPORT internal::Address* CopyGlobalReference(internal::Address* from);
+V8_EXPORT void DisposeGlobal(internal::Address* global_handle);
+V8_EXPORT void MakeWeak(internal::Address** location_addr);
+V8_EXPORT void* ClearWeak(internal::Address* location);
+V8_EXPORT void AnnotateStrongRetainer(internal::Address* location,
+                                      const char* label);
+V8_EXPORT internal::Address* GlobalizeReference(internal::Isolate* isolate,
+                                                internal::Address value);
+V8_EXPORT void MoveGlobalReference(internal::Address** from,
+                                   internal::Address** to);
+}  // namespace api_internal
+
+/**
+ * Eternal handles are set-once handles that live for the lifetime of the
+ * isolate.
+ */
+template <class T>
+class Eternal : public api_internal::IndirectHandleBase {
+ public:
+  V8_INLINE Eternal() = default;
+
+  template <class S>
+  V8_INLINE Eternal(Isolate* isolate, Local<S> handle) {
+    Set(isolate, handle);
+  }
+
+  // Can only be safely called if already set.
+  V8_INLINE Local<T> Get(Isolate* isolate) const {
+    // The eternal handle will never go away, so as with the roots, we don't
+    // even need to open a handle.
+    return Local<T>::FromSlot(slot());
+  }
+
+  template <class S>
+  void Set(Isolate* isolate, Local<S> handle) {
+    static_assert(std::is_base_of<T, S>::value, "type check");
+    slot() =
+        api_internal::Eternalize(isolate, *handle.template UnsafeAs<Value>());
+  }
+};
+
+namespace api_internal {
+V8_EXPORT void MakeWeak(internal::Address* location, void* data,
+                        WeakCallbackInfo<void>::Callback weak_callback,
+                        WeakCallbackType type);
+}  // namespace api_internal
+
+/**
+ * An object reference that is independent of any handle scope.  Where
+ * a Local handle only lives as long as the HandleScope in which it was
+ * allocated, a PersistentBase handle remains valid until it is explicitly
+ * disposed using Reset().
+ *
+ * A persistent handle contains a reference to a storage cell within
+ * the V8 engine which holds an object value and which is updated by
+ * the garbage collector whenever the object is moved.  A new storage
+ * cell can be created using the constructor or PersistentBase::Reset and
+ * existing handles can be disposed using PersistentBase::Reset.
+ *
+ */
+template <class T>
+class PersistentBase : public api_internal::IndirectHandleBase {
+ public:
+  /**
+   * If non-empty, destroy the underlying storage cell
+   * IsEmpty() will return true after this call.
+   */
+  V8_INLINE void Reset();
+
+  /**
+   * If non-empty, destroy the underlying storage cell
+   * and create a new one with the contents of other if other is non empty
+   */
+  template <class S>
+  V8_INLINE void Reset(Isolate* isolate, const Local<S>& other);
+
+  /**
+   * If non-empty, destroy the underlying storage cell
+   * and create a new one with the contents of other if other is non empty
+   */
+  template <class S>
+  V8_INLINE void Reset(Isolate* isolate, const PersistentBase<S>& other);
+
+  V8_INLINE Local<T> Get(Isolate* isolate) const {
+    return Local<T>::New(isolate, *this);
+  }
+
+  template <class S>
+  V8_INLINE bool operator==(const PersistentBase<S>& that) const {
+    return internal::HandleHelper::EqualHandles(*this, that);
+  }
+
+  template <class S>
+  V8_INLINE bool operator==(const Local<S>& that) const {
+    return internal::HandleHelper::EqualHandles(*this, that);
+  }
+
+  template <class S>
+  V8_INLINE bool operator!=(const PersistentBase<S>& that) const {
+    return !operator==(that);
+  }
+
+  template <class S>
+  V8_INLINE bool operator!=(const Local<S>& that) const {
+    return !operator==(that);
+  }
+
+  /**
+   * Install a finalization callback on this object.
+   * NOTE: There is no guarantee as to *when* or even *if* the callback is
+   * invoked. The invocation is performed solely on a best effort basis.
+   * As always, GC-based finalization should *not* be relied upon for any
+   * critical form of resource management!
+   *
+   * The callback is supposed to reset the handle. No further V8 API may be
+   * called in this callback. In case additional work involving V8 needs to be
+   * done, a second callback can be scheduled using
+   * WeakCallbackInfo<void>::SetSecondPassCallback.
+   */
+  template <typename P>
+  V8_INLINE void SetWeak(P* parameter,
+                         typename WeakCallbackInfo<P>::Callback callback,
+                         WeakCallbackType type);
+
+  /**
+   * Turns this handle into a weak phantom handle without finalization callback.
+   * The handle will be reset automatically when the garbage collector detects
+   * that the object is no longer reachable.
+   */
+  V8_INLINE void SetWeak();
+
+  template <typename P>
+  V8_INLINE P* ClearWeak();
+
+  // TODO(dcarney): remove this.
+  V8_INLINE void ClearWeak() { ClearWeak<void>(); }
+
+  /**
+   * Annotates the strong handle with the given label, which is then used by the
+   * heap snapshot generator as a name of the edge from the root to the handle.
+   * The function does not take ownership of the label and assumes that the
+   * label is valid as long as the handle is valid.
+   */
+  V8_INLINE void AnnotateStrongRetainer(const char* label);
+
+  /** Returns true if the handle's reference is weak.  */
+  V8_INLINE bool IsWeak() const;
+
+  /**
+   * Assigns a wrapper class ID to the handle.
+   */
+  V8_INLINE void SetWrapperClassId(uint16_t class_id);
+
+  /**
+   * Returns the class ID previously assigned to this handle or 0 if no class ID
+   * was previously assigned.
+   */
+  V8_INLINE uint16_t WrapperClassId() const;
+
+  PersistentBase(const PersistentBase& other) = delete;
+  void operator=(const PersistentBase&) = delete;
+
+ private:
+  friend class Isolate;
+  friend class Utils;
+  template <class F>
+  friend class Local;
+  template <class F1, class F2>
+  friend class Persistent;
+  template <class F>
+  friend class Global;
+  template <class F>
+  friend class PersistentBase;
+  template <class F>
+  friend class ReturnValue;
+  template <class F1, class F2, class F3>
+  friend class PersistentValueMapBase;
+  template <class F1, class F2>
+  friend class PersistentValueVector;
+  friend class Object;
+  friend class internal::ValueHelper;
+
+  V8_INLINE PersistentBase() = default;
+
+  V8_INLINE explicit PersistentBase(internal::Address* location)
+      : IndirectHandleBase(location) {}
+
+  V8_INLINE static internal::Address* New(Isolate* isolate, T* that);
+};
+
+/**
+ * Default traits for Persistent. This class does not allow
+ * use of the copy constructor or assignment operator.
+ * At present kResetInDestructor is not set, but that will change in a future
+ * version.
+ */
+template <class T>
+class NonCopyablePersistentTraits {
+ public:
+  using NonCopyablePersistent = Persistent<T, NonCopyablePersistentTraits<T>>;
+  static const bool kResetInDestructor = false;
+  template <class S, class M>
+  V8_INLINE static void Copy(const Persistent<S, M>& source,
+                             NonCopyablePersistent* dest) {
+    static_assert(sizeof(S) < 0,
+                  "NonCopyablePersistentTraits::Copy is not instantiable");
+  }
+};
+
+/**
+ * Helper class traits to allow copying and assignment of Persistent.
+ * This will clone the contents of storage cell, but not any of the flags, etc.
+ */
+template <class T>
+struct CopyablePersistentTraits {
+  using CopyablePersistent = Persistent<T, CopyablePersistentTraits<T>>;
+  static const bool kResetInDestructor = true;
+  template <class S, class M>
+  static V8_INLINE void Copy(const Persistent<S, M>& source,
+                             CopyablePersistent* dest) {
+    // do nothing, just allow copy
+  }
+};
+
+/**
+ * A PersistentBase which allows copy and assignment.
+ *
+ * Copy, assignment and destructor behavior is controlled by the traits
+ * class M.
+ *
+ * CAVEAT: Persistent objects do not have proper destruction behavior by default
+ * and as such will leak the object without explicit clear. Consider using
+ * `v8::Global` instead which has proper destruction and move semantics.
+ */
+template <class T, class M>
+class Persistent : public PersistentBase<T> {
+ public:
+  /**
+   * A Persistent with no storage cell.
+   */
+  V8_INLINE Persistent() = default;
+
+  /**
+   * Construct a Persistent from a Local.
+   * When the Local is non-empty, a new storage cell is created
+   * pointing to the same object, and no flags are set.
+   */
+  template <class S>
+  V8_INLINE Persistent(Isolate* isolate, Local<S> that)
+      : PersistentBase<T>(
+            PersistentBase<T>::New(isolate, that.template value<S>())) {
+    static_assert(std::is_base_of<T, S>::value, "type check");
+  }
+
+  /**
+   * Construct a Persistent from a Persistent.
+   * When the Persistent is non-empty, a new storage cell is created
+   * pointing to the same object, and no flags are set.
+   */
+  template <class S, class M2>
+  V8_INLINE Persistent(Isolate* isolate, const Persistent<S, M2>& that)
+      : PersistentBase<T>(
+            PersistentBase<T>::New(isolate, that.template value<S>())) {
+    static_assert(std::is_base_of<T, S>::value, "type check");
+  }
+
+  /**
+   * The copy constructors and assignment operator create a Persistent
+   * exactly as the Persistent constructor, but the Copy function from the
+   * traits class is called, allowing the setting of flags based on the
+   * copied Persistent.
+   */
+  V8_INLINE Persistent(const Persistent& that) : PersistentBase<T>() {
+    Copy(that);
+  }
+  template <class S, class M2>
+  V8_INLINE Persistent(const Persistent<S, M2>& that) : PersistentBase<T>() {
+    Copy(that);
+  }
+  V8_INLINE Persistent& operator=(const Persistent& that) {
+    Copy(that);
+    return *this;
+  }
+  template <class S, class M2>
+  V8_INLINE Persistent& operator=(const Persistent<S, M2>& that) {
+    Copy(that);
+    return *this;
+  }
+
+  /**
+   * The destructor will dispose the Persistent based on the
+   * kResetInDestructor flags in the traits class.  Since not calling dispose
+   * can result in a memory leak, it is recommended to always set this flag.
+   */
+  V8_INLINE ~Persistent() {
+    if (M::kResetInDestructor) this->Reset();
+  }
+
+  // TODO(dcarney): this is pretty useless, fix or remove
+  template <class S, class M2>
+  V8_INLINE static Persistent<T, M>& Cast(const Persistent<S, M2>& that) {
+#ifdef V8_ENABLE_CHECKS
+    // If we're going to perform the type check then we have to check
+    // that the handle isn't empty before doing the checked cast.
+    if (!that.IsEmpty()) T::Cast(that.template value<S>());
+#endif
+    return reinterpret_cast<Persistent<T, M>&>(
+        const_cast<Persistent<S, M2>&>(that));
+  }
+
+  // TODO(dcarney): this is pretty useless, fix or remove
+  template <class S, class M2>
+  V8_INLINE Persistent<S, M2>& As() const {
+    return Persistent<S, M2>::Cast(*this);
+  }
+
+ private:
+  friend class Isolate;
+  friend class Utils;
+  template <class F>
+  friend class Local;
+  template <class F1, class F2>
+  friend class Persistent;
+  template <class F>
+  friend class ReturnValue;
+
+  template <class S, class M2>
+  V8_INLINE void Copy(const Persistent<S, M2>& that);
+};
+
+/**
+ * A PersistentBase which has move semantics.
+ *
+ * Note: Persistent class hierarchy is subject to future changes.
+ */
+template <class T>
+class Global : public PersistentBase<T> {
+ public:
+  /**
+   * A Global with no storage cell.
+   */
+  V8_INLINE Global() = default;
+
+  /**
+   * Construct a Global from a Local.
+   * When the Local is non-empty, a new storage cell is created
+   * pointing to the same object, and no flags are set.
+   */
+  template <class S>
+  V8_INLINE Global(Isolate* isolate, Local<S> that)
+      : PersistentBase<T>(
+            PersistentBase<T>::New(isolate, that.template value<S>())) {
+    static_assert(std::is_base_of<T, S>::value, "type check");
+  }
+
+  /**
+   * Construct a Global from a PersistentBase.
+   * When the Persistent is non-empty, a new storage cell is created
+   * pointing to the same object, and no flags are set.
+   */
+  template <class S>
+  V8_INLINE Global(Isolate* isolate, const PersistentBase<S>& that)
+      : PersistentBase<T>(
+            PersistentBase<T>::New(isolate, that.template value<S>())) {
+    static_assert(std::is_base_of<T, S>::value, "type check");
+  }
+
+  /**
+   * Move constructor.
+   */
+  V8_INLINE Global(Global&& other);
+
+  V8_INLINE ~Global() { this->Reset(); }
+
+  /**
+   * Move via assignment.
+   */
+  template <class S>
+  V8_INLINE Global& operator=(Global<S>&& rhs);
+
+  /**
+   * Pass allows returning uniques from functions, etc.
+   */
+  Global Pass() { return static_cast<Global&&>(*this); }
+
+  /*
+   * For compatibility with Chromium's base::Bind (base::Passed).
+   */
+  using MoveOnlyTypeForCPP03 = void;
+
+  Global(const Global&) = delete;
+  void operator=(const Global&) = delete;
+
+ private:
+  template <class F>
+  friend class ReturnValue;
+};
+
+// UniquePersistent is an alias for Global for historical reason.
+template <class T>
+using UniquePersistent = Global<T>;
+
+/**
+ * Interface for iterating through all the persistent handles in the heap.
+ */
+class V8_EXPORT PersistentHandleVisitor {
+ public:
+  virtual ~PersistentHandleVisitor() = default;
+  virtual void VisitPersistentHandle(Persistent<Value>* value,
+                                     uint16_t class_id) {}
+};
+
+template <class T>
+internal::Address* PersistentBase<T>::New(Isolate* isolate, T* that) {
+  if (internal::ValueHelper::IsEmpty(that)) return nullptr;
+  return api_internal::GlobalizeReference(
+      reinterpret_cast<internal::Isolate*>(isolate),
+      internal::ValueHelper::ValueAsAddress(that));
+}
+
+template <class T, class M>
+template <class S, class M2>
+void Persistent<T, M>::Copy(const Persistent<S, M2>& that) {
+  static_assert(std::is_base_of<T, S>::value, "type check");
+  this->Reset();
+  if (that.IsEmpty()) return;
+  this->slot() = api_internal::CopyGlobalReference(that.slot());
+  M::Copy(that, this);
+}
+
+template <class T>
+bool PersistentBase<T>::IsWeak() const {
+  using I = internal::Internals;
+  if (this->IsEmpty()) return false;
+  return I::GetNodeState(this->slot()) == I::kNodeStateIsWeakValue;
+}
+
+template <class T>
+void PersistentBase<T>::Reset() {
+  if (this->IsEmpty()) return;
+  api_internal::DisposeGlobal(this->slot());
+  this->Clear();
+}
+
+/**
+ * If non-empty, destroy the underlying storage cell
+ * and create a new one with the contents of other if other is non empty
+ */
+template <class T>
+template <class S>
+void PersistentBase<T>::Reset(Isolate* isolate, const Local<S>& other) {
+  static_assert(std::is_base_of<T, S>::value, "type check");
+  Reset();
+  if (other.IsEmpty()) return;
+  this->slot() = New(isolate, *other);
+}
+
+/**
+ * If non-empty, destroy the underlying storage cell
+ * and create a new one with the contents of other if other is non empty
+ */
+template <class T>
+template <class S>
+void PersistentBase<T>::Reset(Isolate* isolate,
+                              const PersistentBase<S>& other) {
+  static_assert(std::is_base_of<T, S>::value, "type check");
+  Reset();
+  if (other.IsEmpty()) return;
+  this->slot() = New(isolate, other.template value<S>());
+}
+
+template <class T>
+template <typename P>
+V8_INLINE void PersistentBase<T>::SetWeak(
+    P* parameter, typename WeakCallbackInfo<P>::Callback callback,
+    WeakCallbackType type) {
+  using Callback = WeakCallbackInfo<void>::Callback;
+#if (__GNUC__ >= 8) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-function-type"
+#endif
+  api_internal::MakeWeak(this->slot(), parameter,
+                         reinterpret_cast<Callback>(callback), type);
+#if (__GNUC__ >= 8) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif
+}
+
+template <class T>
+void PersistentBase<T>::SetWeak() {
+  api_internal::MakeWeak(&this->slot());
+}
+
+template <class T>
+template <typename P>
+P* PersistentBase<T>::ClearWeak() {
+  return reinterpret_cast<P*>(api_internal::ClearWeak(this->slot()));
+}
+
+template <class T>
+void PersistentBase<T>::AnnotateStrongRetainer(const char* label) {
+  api_internal::AnnotateStrongRetainer(this->slot(), label);
+}
+
+template <class T>
+void PersistentBase<T>::SetWrapperClassId(uint16_t class_id) {
+  using I = internal::Internals;
+  if (this->IsEmpty()) return;
+  uint8_t* addr = reinterpret_cast<uint8_t*>(slot()) + I::kNodeClassIdOffset;
+  *reinterpret_cast<uint16_t*>(addr) = class_id;
+}
+
+template <class T>
+uint16_t PersistentBase<T>::WrapperClassId() const {
+  using I = internal::Internals;
+  if (this->IsEmpty()) return 0;
+  uint8_t* addr = reinterpret_cast<uint8_t*>(slot()) + I::kNodeClassIdOffset;
+  return *reinterpret_cast<uint16_t*>(addr);
+}
+
+template <class T>
+Global<T>::Global(Global&& other) : PersistentBase<T>(other.slot()) {
+  if (!other.IsEmpty()) {
+    api_internal::MoveGlobalReference(&other.slot(), &this->slot());
+    other.Clear();
+  }
+}
+
+template <class T>
+template <class S>
+Global<T>& Global<T>::operator=(Global<S>&& rhs) {
+  static_assert(std::is_base_of<T, S>::value, "type check");
+  if (this != &rhs) {
+    this->Reset();
+    if (!rhs.IsEmpty()) {
+      this->slot() = rhs.slot();
+      api_internal::MoveGlobalReference(&rhs.slot(), &this->slot());
+      rhs.Clear();
+    }
+  }
+  return *this;
+}
+
+}  // namespace v8
+
+#endif  // INCLUDE_V8_PERSISTENT_HANDLE_H_