chromium/third_party/spirv-tools/src/source/util/string_utils.h

// Copyright (c) 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef SOURCE_UTIL_STRING_UTILS_H_
#define SOURCE_UTIL_STRING_UTILS_H_

#include <assert.h>

#include <cstring>
#include <sstream>
#include <string>
#include <vector>

#include "source/util/string_utils.h"

namespace spvtools {
namespace utils {

// Converts arithmetic value |val| to its default string representation.
template <class T>
std::string ToString(T val) { … }

// Converts cardinal number to ordinal number string.
std::string CardinalToOrdinal(size_t cardinal);

// Splits the string |flag|, of the form '--pass_name[=pass_args]' into two
// strings "pass_name" and "pass_args".  If |flag| has no arguments, the second
// string will be empty.
std::pair<std::string, std::string> SplitFlagArgs(const std::string& flag);

// Encodes a string as a sequence of words, using the SPIR-V encoding, appending
// to an existing vector.
inline void AppendToVector(const std::string& input,
                           std::vector<uint32_t>* result) { … }

// Encodes a string as a sequence of words, using the SPIR-V encoding.
inline std::vector<uint32_t> MakeVector(const std::string& input) { … }

// Decode a string from a sequence of words between first and last, using the
// SPIR-V encoding. Assert that a terminating 0-byte was found (unless
// assert_found_terminating_null is passed as false).
template <class InputIt>
inline std::string MakeString(InputIt first, InputIt last,
                              bool assert_found_terminating_null = true) { … }

// Decode a string from a sequence of words in a vector, using the SPIR-V
// encoding.
template <class VectorType>
inline std::string MakeString(const VectorType& words,
                              bool assert_found_terminating_null = true) { … }

// Decode a string from array words, consuming up to count words, using the
// SPIR-V encoding.
inline std::string MakeString(const uint32_t* words, size_t num_words,
                              bool assert_found_terminating_null = true) { … }

// Check if str starts with prefix (only included since C++20)
inline bool starts_with(const std::string& str, const char* prefix) { … }

}  // namespace utils
}  // namespace spvtools

#endif  // SOURCE_UTIL_STRING_UTILS_H_