91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
//* Copyright 2021 The Dawn Authors
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//*
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//* Licensed under the Apache License, Version 2.0 (the "License");
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//* you may not use this file except in compliance with the License.
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//* You may obtain a copy of the License at
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//*
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//* http://www.apache.org/licenses/LICENSE-2.0
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//*
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//* Unless required by applicable law or agreed to in writing, software
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//* distributed under the License is distributed on an "AS IS" BASIS,
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//* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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//* See the License for the specific language governing permissions and
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//* limitations under the License.
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#ifndef WEBGPU_CPP_PRINT_H_
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#define WEBGPU_CPP_PRINT_H_
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#include "dawn/webgpu_cpp.h"
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#include <iomanip>
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#include <ios>
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#include <ostream>
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#include <type_traits>
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namespace wgpu {
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{% for type in by_category["enum"] %}
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template <typename CharT, typename Traits>
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std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& o, {{as_cppType(type.name)}} value) {
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switch (value) {
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{% for value in type.values %}
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case {{as_cppType(type.name)}}::{{as_cppEnum(value.name)}}:
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o << "{{as_cppType(type.name)}}::{{as_cppEnum(value.name)}}";
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break;
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{% endfor %}
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default:
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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);
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}
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return o;
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}
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{% endfor %}
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{% for type in by_category["bitmask"] %}
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template <typename CharT, typename Traits>
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std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& o, {{as_cppType(type.name)}} value) {
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o << "{{as_cppType(type.name)}}::";
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if (!static_cast<bool>(value)) {
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{% for value in type.values if value.value == 0 %}
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// 0 is often explicitly declared as None.
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o << "{{as_cppEnum(value.name)}}";
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{% else %}
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o << std::showbase << std::hex << std::setfill('0') << std::setw(4) << 0;
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{% endfor %}
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return o;
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}
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bool moreThanOneBit = !HasZeroOrOneBits(value);
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if (moreThanOneBit) {
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o << "(";
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}
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bool first = true;
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{% for value in type.values if value.value != 0 %}
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if (value & {{as_cppType(type.name)}}::{{as_cppEnum(value.name)}}) {
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if (!first) {
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o << "|";
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}
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first = false;
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o << "{{as_cppEnum(value.name)}}";
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value &= ~{{as_cppType(type.name)}}::{{as_cppEnum(value.name)}};
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}
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{% endfor %}
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if (static_cast<bool>(value)) {
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if (!first) {
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o << "|";
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}
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o << std::showbase << std::hex << std::setfill('0') << std::setw(4) << static_cast<typename std::underlying_type<{{as_cppType(type.name)}}>::type>(value);
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}
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if (moreThanOneBit) {
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o << ")";
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}
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return o;
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}
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{% endfor %}
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} // namespace wgpu
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#endif // WEBGPU_CPP_PRINT_H_
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