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 PANDA_RUNTIME_INCLUDE_MEM_PANDA_STRING_H_
17 #define PANDA_RUNTIME_INCLUDE_MEM_PANDA_STRING_H_
18
19 #include <sstream>
20 #include <string>
21 #include <string_view>
22
23 #include "runtime/mem/allocator_adapter.h"
24
25 namespace panda {
26 namespace coretypes {
27 class String;
28 } // namespace coretypes
29
30 using PandaString = std::basic_string<char, std::char_traits<char>, mem::AllocatorAdapter<char>>;
31 using PandaStringStream = std::basic_stringstream<char, std::char_traits<char>, mem::AllocatorAdapter<char>>;
32 using PandaIStringStream = std::basic_istringstream<char, std::char_traits<char>, mem::AllocatorAdapter<char>>;
33 using PandaOStringStream = std::basic_ostringstream<char, std::char_traits<char>, mem::AllocatorAdapter<char>>;
34
35 int64_t PandaStringToLL(const PandaString &str);
36 uint64_t PandaStringToULL(const PandaString &str);
37 float PandaStringToF(const PandaString &str);
38 double PandaStringToD(const PandaString &str);
39 PandaString ConvertToString(const std::string &str);
40 PandaString ConvertToString(coretypes::String *s);
41
42 template <class T>
ToPandaString(T value)43 std::enable_if_t<std::is_arithmetic_v<T>, PandaString> ToPandaString(T value)
44 {
45 PandaStringStream str_stream;
46 str_stream << value;
47 return str_stream.str();
48 }
49
50 struct PandaStringHash {
51 using argument_type = panda::PandaString;
52 using result_type = std::size_t;
53
operatorPandaStringHash54 size_t operator()(const PandaString &str) const noexcept
55 {
56 return std::hash<std::string_view>()(std::string_view(str.data(), str.size()));
57 }
58 };
59
PandaStringToStd(const PandaString & pandastr)60 inline std::string PandaStringToStd(const PandaString &pandastr)
61 {
62 // NOLINTNEXTLINE(readability-redundant-string-cstr)
63 std::string str = pandastr.c_str();
64 return str;
65 }
66
67 } // namespace panda
68
69 namespace std {
70
71 template <>
72 struct hash<panda::PandaString> {
73 using argument_type = panda::PandaStringHash::argument_type;
74 using result_type = panda::PandaStringHash::result_type;
75
76 size_t operator()(const panda::PandaString &str) const noexcept
77 {
78 return panda::PandaStringHash()(str);
79 }
80 };
81
82 } // namespace std
83
84 #endif // PANDA_RUNTIME_INCLUDE_MEM_PANDA_STRING_H_
85