//* Copyright 2021 The Dawn Authors //* //* 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. {% set API = metadata.api.upper() %} {% set api = API.lower() %} #ifndef {{API}}_CPP_PRINT_H_ #define {{API}}_CPP_PRINT_H_ #include "dawn/{{api}}_cpp.h" #include <iomanip> #include <ios> #include <ostream> #include <type_traits> namespace {{metadata.namespace}} { {% for type in by_category["enum"] %} template <typename CharT, typename Traits> std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& o, {{as_cppType(type.name)}} value) { switch (value) { {% for value in type.values %} case {{as_cppType(type.name)}}::{{as_cppEnum(value.name)}}: o << "{{as_cppType(type.name)}}::{{as_cppEnum(value.name)}}"; break; {% endfor %} default: o << "{{as_cppType(type.name)}}::" << std::showbase << std::hex << std::setfill('0') << std::setw(4) << static_cast<typename std::underlying_type<{{as_cppType(type.name)}}>::type>(value); } return o; } {% endfor %} {% for type in by_category["bitmask"] %} template <typename CharT, typename Traits> std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& o, {{as_cppType(type.name)}} value) { o << "{{as_cppType(type.name)}}::"; if (!static_cast<bool>(value)) { {% for value in type.values if value.value == 0 %} // 0 is often explicitly declared as None. o << "{{as_cppEnum(value.name)}}"; {% else %} o << std::showbase << std::hex << std::setfill('0') << std::setw(4) << 0; {% endfor %} return o; } bool moreThanOneBit = !HasZeroOrOneBits(value); if (moreThanOneBit) { o << "("; } bool first = true; {% for value in type.values if value.value != 0 %} if (value & {{as_cppType(type.name)}}::{{as_cppEnum(value.name)}}) { if (!first) { o << "|"; } first = false; o << "{{as_cppEnum(value.name)}}"; value &= ~{{as_cppType(type.name)}}::{{as_cppEnum(value.name)}}; } {% endfor %} if (static_cast<bool>(value)) { if (!first) { o << "|"; } o << std::showbase << std::hex << std::setfill('0') << std::setw(4) << static_cast<typename std::underlying_type<{{as_cppType(type.name)}}>::type>(value); } if (moreThanOneBit) { o << ")"; } return o; } {% endfor %} } // namespace {{metadata.namespace}} #endif // {{API}}_CPP_PRINT_H_