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// 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.
#include "src/execution/embedder-state.h"
#include "src/api/api-inl.h"
#include "src/base/logging.h"
namespace v8 {
namespace internal {
EmbedderState::EmbedderState(v8::Isolate* isolate, Local<v8::Context> context,
EmbedderStateTag tag)
: isolate_(reinterpret_cast<i::Isolate*>(isolate)),
tag_(tag),
previous_embedder_state_(isolate_->current_embedder_state()) {
if (!context.IsEmpty()) {
native_context_address_ =
v8::Utils::OpenHandle(*context)->native_context().address();
}
DCHECK_NE(this, isolate_->current_embedder_state());
isolate_->set_current_embedder_state(this);
}
EmbedderState::~EmbedderState() {
DCHECK_EQ(this, isolate_->current_embedder_state());
isolate_->set_current_embedder_state(previous_embedder_state_);
}
void EmbedderState::OnMoveEvent(Address from, Address to) {
EmbedderState* state = this;
do {
if (state->native_context_address_ == from) {
native_context_address_ = to;
}
state = state->previous_embedder_state_;
} while (state != nullptr);
}
} // namespace internal
} // namespace v8
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