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fd4f80ce54
PR-URL: https://github.com/nodejs/node/pull/42657 Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
52 lines
1.5 KiB
C++
52 lines
1.5 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_EMBEDDER_STATE_SCOPE_H_
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#define INCLUDE_V8_EMBEDDER_STATE_SCOPE_H_
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#include <memory>
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#include "v8-context.h" // NOLINT(build/include_directory)
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#include "v8-internal.h" // NOLINT(build/include_directory)
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#include "v8-local-handle.h" // NOLINT(build/include_directory)
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namespace v8 {
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namespace internal {
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class EmbedderState;
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} // namespace internal
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// A StateTag represents a possible state of the embedder.
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enum class EmbedderStateTag : uint8_t {
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// reserved
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EMPTY = 0,
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OTHER = 1,
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// embedder can define any state after
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};
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// A stack-allocated class that manages an embedder state on the isolate.
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// After an EmbedderState scope has been created, a new embedder state will be
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// pushed on the isolate stack.
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class V8_EXPORT EmbedderStateScope {
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public:
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EmbedderStateScope(Isolate* isolate, Local<v8::Context> context,
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EmbedderStateTag tag);
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~EmbedderStateScope();
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private:
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// Declaring operator new and delete as deleted is not spec compliant.
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// Therefore declare them private instead to disable dynamic alloc
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void* operator new(size_t size);
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void* operator new[](size_t size);
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void operator delete(void*, size_t);
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void operator delete[](void*, size_t);
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std::unique_ptr<internal::EmbedderState> embedder_state_;
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};
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} // namespace v8
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#endif // INCLUDE_V8_EMBEDDER_STATE_SCOPE_H_
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