1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef ECMASCRIPT_MEM_MEM_COMMON_H 17 #define ECMASCRIPT_MEM_MEM_COMMON_H 18 19 #include <cstdint> 20 21 namespace panda::ecmascript { 22 template <class T> ToUintPtr(T * val)23inline uintptr_t ToUintPtr(T *val) 24 { 25 return reinterpret_cast<uintptr_t>(val); 26 } 27 ToUintPtr(std::nullptr_t)28inline uintptr_t ToUintPtr(std::nullptr_t) 29 { 30 return reinterpret_cast<uintptr_t>(nullptr); 31 } 32 ToVoidPtr(uintptr_t val)33inline void *ToVoidPtr(uintptr_t val) 34 { 35 return reinterpret_cast<void *>(val); 36 } 37 38 /* 39 uint64_t return type usage in memory literals for giving 40 compile-time error in case of integer overflow 41 */ 42 constexpr uint64_t SHIFT_KB = 10ULL; 43 constexpr uint64_t SHIFT_MB = 20ULL; 44 constexpr uint64_t SHIFT_GB = 30ULL; 45 46 constexpr uint64_t operator"" _KB(long double count) 47 { 48 return count * (1ULL << SHIFT_KB); 49 } 50 51 // NOLINTNEXTLINE(google-runtime-int) 52 constexpr uint64_t operator"" _KB(unsigned long long count) 53 { 54 return count * (1ULL << SHIFT_KB); 55 } 56 57 constexpr uint64_t operator"" _MB(long double count) 58 { 59 return count * (1ULL << SHIFT_MB); 60 } 61 62 // NOLINTNEXTLINE(google-runtime-int) 63 constexpr uint64_t operator"" _MB(unsigned long long count) 64 { 65 return count * (1ULL << SHIFT_MB); 66 } 67 68 constexpr uint64_t operator"" _GB(long double count) 69 { 70 return count * (1ULL << SHIFT_GB); 71 } 72 73 // NOLINTNEXTLINE(google-runtime-int) 74 constexpr uint64_t operator"" _GB(unsigned long long count) 75 { 76 return count * (1ULL << SHIFT_GB); 77 } 78 } // namespace panda::ecmascript 79 80 #endif // ECMASCRIPT_MEM_MEM_COMMON_H 81