ec06bb6ce5
This is a reland of d1b27019d3
Fixes include:
Adding missing file to bazel build
Forward-declaring classing before friend-classing them to fix win/gcc
Add missing v8-isolate.h include for vtune builds
Original change's description:
> [include] Split out v8.h
>
> This moves every single class/function out of include/v8.h into a
> separate header in include/, which v8.h then includes so that
> externally nothing appears to have changed.
>
> Every include of v8.h from inside v8 has been changed to a more
> fine-grained include.
>
> Previously inline functions defined at the bottom of v8.h would call
> private non-inline functions in the V8 class. Since that class is now
> in v8-initialization.h and is rarely included (as that would create
> dependency cycles), this is not possible and so those methods have been
> moved out of the V8 class into the namespace v8::api_internal.
>
> None of the previous files in include/ now #include v8.h, which means
> if embedders were relying on this transitive dependency then it will
> give compile failures.
>
> v8-inspector.h does depend on v8-scripts.h for the time being to ensure
> that Chrome continue to compile but that change will be reverted once
> those transitive #includes in chrome are changed to include it directly.
>
> Full design:
> https://docs.google.com/document/d/1rTD--I8hCAr-Rho1WTumZzFKaDpEp0IJ8ejZtk4nJdA/edit?usp=sharing
>
> Bug: v8:11965
> Change-Id: I53b84b29581632710edc80eb11f819c2097a2877
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3097448
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Dan Elphick <delphick@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76424}
Cq-Include-Trybots: luci.v8.try:v8_linux_vtunejit
Bug: v8:11965
Change-Id: I99f5d3a73bf8fe25b650adfaf9567dc4e44a09e6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3113629
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76460}
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
// Copyright 2021 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef INCLUDE_V8_WEAK_CALLBACK_INFO_H_
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#define INCLUDE_V8_WEAK_CALLBACK_INFO_H_
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#include "v8config.h" // NOLINT(build/include_directory)
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namespace v8 {
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class Isolate;
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namespace api_internal {
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V8_EXPORT void InternalFieldOutOfBounds(int index);
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} // namespace api_internal
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static const int kInternalFieldsInWeakCallback = 2;
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static const int kEmbedderFieldsInWeakCallback = 2;
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template <typename T>
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class WeakCallbackInfo {
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public:
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using Callback = void (*)(const WeakCallbackInfo<T>& data);
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WeakCallbackInfo(Isolate* isolate, T* parameter,
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void* embedder_fields[kEmbedderFieldsInWeakCallback],
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Callback* callback)
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: isolate_(isolate), parameter_(parameter), callback_(callback) {
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for (int i = 0; i < kEmbedderFieldsInWeakCallback; ++i) {
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embedder_fields_[i] = embedder_fields[i];
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}
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}
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V8_INLINE Isolate* GetIsolate() const { return isolate_; }
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V8_INLINE T* GetParameter() const { return parameter_; }
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V8_INLINE void* GetInternalField(int index) const;
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// When first called, the embedder MUST Reset() the Global which triggered the
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// callback. The Global itself is unusable for anything else. No v8 other api
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// calls may be called in the first callback. Should additional work be
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// required, the embedder must set a second pass callback, which will be
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// called after all the initial callbacks are processed.
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// Calling SetSecondPassCallback on the second pass will immediately crash.
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void SetSecondPassCallback(Callback callback) const { *callback_ = callback; }
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private:
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Isolate* isolate_;
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T* parameter_;
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Callback* callback_;
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void* embedder_fields_[kEmbedderFieldsInWeakCallback];
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};
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// kParameter will pass a void* parameter back to the callback, kInternalFields
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// will pass the first two internal fields back to the callback, kFinalizer
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// will pass a void* parameter back, but is invoked before the object is
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// actually collected, so it can be resurrected. In the last case, it is not
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// possible to request a second pass callback.
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enum class WeakCallbackType { kParameter, kInternalFields, kFinalizer };
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template <class T>
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void* WeakCallbackInfo<T>::GetInternalField(int index) const {
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#ifdef V8_ENABLE_CHECKS
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if (index < 0 || index >= kEmbedderFieldsInWeakCallback) {
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api_internal::InternalFieldOutOfBounds(index);
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}
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#endif
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return embedder_fields_[index];
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}
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} // namespace v8
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#endif // INCLUDE_V8_WEAK_CALLBACK_INFO_H_
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