39 lines
1019 B
C
39 lines
1019 B
C
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// Copyright 2020 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 V8_TEST_COMMON_FLAG_UTILS_H
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#define V8_TEST_COMMON_FLAG_UTILS_H
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namespace v8 {
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namespace internal {
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template <typename T>
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class FlagScope {
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public:
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FlagScope(T* flag, T new_value) : flag_(flag), previous_value_(*flag) {
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*flag = new_value;
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}
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~FlagScope() { *flag_ = previous_value_; }
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private:
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T* flag_;
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T previous_value_;
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};
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#define FLAG_SCOPE(flag) \
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FlagScope<bool> __scope_##flag##__LINE__(&FLAG_##flag, true)
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} // namespace internal
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} // namespace v8
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#define FLAG_SCOPE_EXTERNAL(flag) \
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v8::internal::FlagScope<bool> __scope_##flag##__LINE__( \
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&v8::internal::FLAG_##flag, true)
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#define UNFLAG_SCOPE_EXTERNAL(flag) \
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v8::internal::FlagScope<bool> __scope_##flag##__LINE__( \
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&v8::internal::FLAG_##flag, false)
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#endif // V8_TEST_COMMON_FLAG_UTILS_H
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