1 #ifndef _TCUSTRINGTEMPLATE_HPP
2 #define _TCUSTRINGTEMPLATE_HPP
3 /*-------------------------------------------------------------------------
4 * drawElements Quality Program Tester Core
5 * ----------------------------------------
6 *
7 * Copyright 2014 The Android Open Source Project
8 * Copyright (c) 2020 The Khronos Group Inc.
9 * Copyright (c) 2020 Advanced Micro Devices, Inc.
10 *
11 * Licensed under the Apache License, Version 2.0 (the "License");
12 * you may not use this file except in compliance with the License.
13 * You may obtain a copy of the License at
14 *
15 * http://www.apache.org/licenses/LICENSE-2.0
16 *
17 * Unless required by applicable law or agreed to in writing, software
18 * distributed under the License is distributed on an "AS IS" BASIS,
19 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20 * See the License for the specific language governing permissions and
21 * limitations under the License.
22 *
23 *//*!
24 * \file
25 * \brief String template class.
26 *//*--------------------------------------------------------------------*/
27
28 #include <deStringUtil.hpp>
29
30 #include <map>
31 #include <string>
32
33 namespace tcu
34 {
35
36 class StringTemplate
37 {
38 public:
39 StringTemplate (void);
40 StringTemplate (const std::string& str);
41 ~StringTemplate (void);
42
43 void setString (const std::string& str);
44
45 std::string specialize (const std::map<std::string, std::string>& params) const;
46
47 template <typename... args_t>
48 std::string format (args_t&&... args) const;
49
50 private:
51 StringTemplate (const StringTemplate&); // not allowed!
52 StringTemplate& operator= (const StringTemplate&); // not allowed!
53
54 std::string m_template;
55 } DE_WARN_UNUSED_TYPE;
56
57 /*--------------------------------------------------------------------*//*!
58 * Utility to unpack consecutive arguments into a parameter map
59 *//*--------------------------------------------------------------------*/
60 namespace detail
61 {
62 static constexpr const char* TOKENS[] = {
63 "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10",
64 "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21",
65 "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32",
66 "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43",
67 "44", "45", "46", "47", "48", "49", "50", "51", "52", "53", "54",
68 "55", "56", "57", "58", "59", "60", "61", "62", "63"};
69
70 template <size_t ARG_NUM, typename unpacked_t>
unpackArgs(unpacked_t &)71 inline void unpackArgs(unpacked_t&) {}
72
73 template <size_t ARG_NUM, typename unpacked_t, typename arg_t, typename... args_t>
unpackArgs(unpacked_t & unpacked,arg_t && cur,args_t &&...args)74 inline void unpackArgs(unpacked_t& unpacked, arg_t&& cur, args_t&&... args)
75 {
76 static_assert(ARG_NUM < DE_LENGTH_OF_ARRAY(TOKENS),
77 "ARG_NUM must be less than DE_LENGTH_OF_ARRAY(TOKENS)");
78 unpacked[TOKENS[ARG_NUM]] = de::toString(cur);
79 unpackArgs<ARG_NUM + 1>(unpacked, ::std::forward<args_t>(args)...);
80 }
81 } // detail
82
83 /*--------------------------------------------------------------------*//*!
84 * \brief Implementation of specialize() using a variable argument list
85 *//*--------------------------------------------------------------------*/
86 template <typename... args_t>
format(args_t &&...args) const87 std::string StringTemplate::format(args_t&&... args) const
88 {
89 std::map<std::string, std::string> unpacked = {};
90 detail::unpackArgs<0>(unpacked, ::std::forward<args_t>(args)...);
91 return specialize(unpacked);
92 }
93
94 } // tcu
95
96 #endif // _TCUSTRINGTEMPLATE_HPP
97