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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/memory/raw_ptr.h"
#include "base/memory/raw_ptr_cast.h"
struct RawPtrWrapper {
raw_ptr<int> ptr;
};
struct RawPtrWrapperWrapper {
RawPtrWrapper* ptr;
};
class RawPtrWrapperWrapperWrapper {
public:
explicit RawPtrWrapperWrapperWrapper(RawPtrWrapperWrapper& ptr) : ptr_(ptr) {}
RawPtrWrapperWrapper& ptr_;
};
struct RawPtrWrapperSub : RawPtrWrapper {};
struct RawPtrWrapperVirtualSub : virtual RawPtrWrapper {};
void MyFunc(void* p) {}
// 'unsafe_raw_ptr_*_cast' should not emit errors.
void CastFromCastingUnsafeExclusion() {
// "Casting unsafe" type variables;
raw_ptr<int> p0;
RawPtrWrapper p1;
RawPtrWrapperWrapper p2;
RawPtrWrapperWrapperWrapper p3(p2);
RawPtrWrapper p4[10];
RawPtrWrapperSub p5;
RawPtrWrapperVirtualSub p6;
(void)base::unsafe_raw_ptr_static_cast<void*>(&p0);
(void)base::unsafe_raw_ptr_static_cast<void*>(&p1);
(void)base::unsafe_raw_ptr_static_cast<void*>(&p2);
(void)base::unsafe_raw_ptr_static_cast<void*>(&p3);
(void)base::unsafe_raw_ptr_static_cast<void*>(&p4);
(void)base::unsafe_raw_ptr_static_cast<void*>(&p5);
(void)base::unsafe_raw_ptr_static_cast<void*>(&p6);
(void)base::unsafe_raw_ptr_reinterpret_cast<void*>(&p0);
(void)base::unsafe_raw_ptr_reinterpret_cast<void*>(&p1);
(void)base::unsafe_raw_ptr_reinterpret_cast<void*>(&p2);
(void)base::unsafe_raw_ptr_reinterpret_cast<void*>(&p3);
(void)base::unsafe_raw_ptr_reinterpret_cast<void*>(&p4);
(void)base::unsafe_raw_ptr_reinterpret_cast<void*>(&p5);
(void)base::unsafe_raw_ptr_reinterpret_cast<void*>(&p6);
(void)base::unsafe_raw_ptr_bit_cast<void*>(&p0);
(void)base::unsafe_raw_ptr_bit_cast<void*>(&p1);
(void)base::unsafe_raw_ptr_bit_cast<void*>(&p2);
(void)base::unsafe_raw_ptr_bit_cast<void*>(&p3);
(void)base::unsafe_raw_ptr_bit_cast<void*>(&p4);
(void)base::unsafe_raw_ptr_bit_cast<void*>(&p5);
(void)base::unsafe_raw_ptr_bit_cast<void*>(&p6);
}
// 'unsafe_raw_ptr_*_cast' should not emit errors.
void CastToCastingUnsafeExclusion() {
void* p = nullptr;
// CK_BitCast via |base::unsafe_raw_ptr_static_cast| should emit an error.
(void)base::unsafe_raw_ptr_static_cast<raw_ptr<int>*>(p);
(void)base::unsafe_raw_ptr_static_cast<RawPtrWrapper*>(p);
(void)base::unsafe_raw_ptr_static_cast<RawPtrWrapperWrapper*>(p);
(void)base::unsafe_raw_ptr_static_cast<RawPtrWrapperWrapperWrapper*>(p);
(void)base::unsafe_raw_ptr_static_cast<RawPtrWrapperSub*>(p);
(void)base::unsafe_raw_ptr_static_cast<RawPtrWrapperVirtualSub*>(p);
// CK_BitCast via |base::unsafe_raw_ptr_reinterpret_cast| should emit an
// error.
(void)base::unsafe_raw_ptr_reinterpret_cast<raw_ptr<int>*>(p);
(void)base::unsafe_raw_ptr_reinterpret_cast<RawPtrWrapper*>(p);
(void)base::unsafe_raw_ptr_reinterpret_cast<RawPtrWrapperWrapper*>(p);
(void)base::unsafe_raw_ptr_reinterpret_cast<RawPtrWrapperWrapperWrapper*>(p);
(void)base::unsafe_raw_ptr_reinterpret_cast<RawPtrWrapperSub*>(p);
(void)base::unsafe_raw_ptr_reinterpret_cast<RawPtrWrapperVirtualSub*>(p);
// CK_BitCast via |bit_cast| should emit an error.
(void)base::unsafe_raw_ptr_bit_cast<raw_ptr<int>*>(p);
(void)base::unsafe_raw_ptr_bit_cast<RawPtrWrapper*>(p);
(void)base::unsafe_raw_ptr_bit_cast<RawPtrWrapperWrapper*>(p);
(void)base::unsafe_raw_ptr_bit_cast<RawPtrWrapperWrapperWrapper*>(p);
(void)base::unsafe_raw_ptr_bit_cast<RawPtrWrapperSub*>(p);
(void)base::unsafe_raw_ptr_bit_cast<RawPtrWrapperVirtualSub*>(p);
}
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