34 lines
883 B
C++
34 lines
883 B
C++
// Copyright (c) 2020 Slack Technologies, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef SHELL_COMMON_GIN_HELPER_PINNABLE_H_
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#define SHELL_COMMON_GIN_HELPER_PINNABLE_H_
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#include "v8/include/v8.h"
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namespace gin_helper {
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template <typename T>
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class Pinnable {
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protected:
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// Prevent the object from being garbage collected until Unpin() is called.
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void Pin(v8::Isolate* isolate) {
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v8::Locker locker(isolate);
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v8::HandleScope scope(isolate);
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v8::Local<v8::Value> wrapper;
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if (static_cast<T*>(this)->GetWrapper(isolate).ToLocal(&wrapper)) {
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pinned_.Reset(isolate, wrapper);
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}
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}
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// Allow the object to be garbage collected.
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void Unpin() { pinned_.Reset(); }
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private:
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v8::Global<v8::Value> pinned_;
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};
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} // namespace gin_helper
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#endif // SHELL_COMMON_GIN_HELPER_PINNABLE_H_
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