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Edit File: conditional-stack-allocated.h
// Copyright 2025 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. #ifndef INCLUDE_CPPGC_INTERNAL_CONDITIONAL_STACK_ALLOCATED_H_ #define INCLUDE_CPPGC_INTERNAL_CONDITIONAL_STACK_ALLOCATED_H_ #include <type_traits> #include "cppgc/macros.h" // NOLINT(build/include_directory) #include "cppgc/type-traits.h" // NOLINT(build/include_directory) namespace cppgc { namespace internal { // Base class that is marked as stack allocated if T is either marked as stack // allocated or a traceable type. template <typename T> class ConditionalStackAllocatedBase; template <typename T> concept RequiresStackAllocated = !std::is_void_v<T> && (cppgc::IsStackAllocatedType<T> || cppgc::internal::IsTraceableV<T> || cppgc::IsGarbageCollectedOrMixinTypeV<T>); template <typename T> requires(RequiresStackAllocated<T>) class ConditionalStackAllocatedBase<T> { public: CPPGC_STACK_ALLOCATED(); }; template <typename T> requires(!RequiresStackAllocated<T>) class ConditionalStackAllocatedBase<T> {}; } // namespace internal } // namespace cppgc #endif // INCLUDE_CPPGC_INTERNAL_CONDITIONAL_STACK_ALLOCATED_H_