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macros.h2.0 KB · 57 lines
// Copyright 2020 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_MACROS_H_#define INCLUDE_CPPGC_MACROS_H_ #include <cstddef> #include "cppgc/internal/compiler-specific.h" namespace cppgc { #define CPPGC_DISALLOW_NEW()                                      \ public:                                                          \  using IsDisallowNewMarker CPPGC_UNUSED = int;                   \  void* operator new(size_t, void* location) { return location; } \  void* operator new(size_t) = delete;                            \  static_assert(true, "Force semicolon.") // Use CPPGC_STACK_ALLOCATED if the object is only stack allocated.// Add the CPPGC_STACK_ALLOCATED_IGNORE annotation on a case-by-case basis when// enforcement of CPPGC_STACK_ALLOCATED should be suppressed.#if defined(__clang__) #define CPPGC_STACK_ALLOCATED()                        \ public:                                               \  using IsStackAllocatedTypeMarker CPPGC_UNUSED = int; \                                                       \ private:                                              \  void* operator new(size_t) = delete;                 \  void* operator new(size_t, void*) = delete;          \  static_assert(true, "Force semicolon.") #define CPPGC_STACK_ALLOCATED_IGNORE(bug_or_reason) \  __attribute__((annotate("stack_allocated_ignore"))) #define CPPGC_PLUGIN_IGNORE(bug_or_reason)           \  __attribute__((annotate("blink_gc_plugin_ignore"), \                 annotate("stack_allocated_ignore"))) #else  // !defined(__clang__) #define CPPGC_STACK_ALLOCATED() static_assert(true, "Force semicolon.")#define CPPGC_STACK_ALLOCATED_IGNORE(bug_or_reason)#define CPPGC_PLUGIN_IGNORE(bug_or_reason) #endif  // !defined(__clang__) template <typename T>concept IsStackAllocatedType =    requires { typename T::IsStackAllocatedTypeMarker; }; }  // namespace cppgc #endif  // INCLUDE_CPPGC_MACROS_H_