dawn-cmake/generator/templates/dawn_native/api_structs.cpp

75 lines
3.3 KiB
C++

//* Copyright 2018 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 native_namespace = Name(metadata.native_namespace).snake_case() %}
{% set impl_dir = metadata.impl_dir + "/" if metadata.impl_dir else "" %}
{% set native_dir = impl_dir + native_namespace %}
{% set namespace = metadata.namespace %}
#include "{{native_dir}}/{{namespace}}_structs_autogen.h"
#include <tuple>
#ifdef __GNUC__
// error: 'offsetof' within non-standard-layout type '{{namespace}}::XXX' is conditionally-supported
#pragma GCC diagnostic ignored "-Winvalid-offsetof"
#endif
namespace {{native_namespace}} {
{% set c_prefix = metadata.c_prefix %}
static_assert(sizeof(ChainedStruct) == sizeof({{c_prefix}}ChainedStruct),
"sizeof mismatch for ChainedStruct");
static_assert(alignof(ChainedStruct) == alignof({{c_prefix}}ChainedStruct),
"alignof mismatch for ChainedStruct");
static_assert(offsetof(ChainedStruct, nextInChain) == offsetof({{c_prefix}}ChainedStruct, next),
"offsetof mismatch for ChainedStruct::nextInChain");
static_assert(offsetof(ChainedStruct, sType) == offsetof({{c_prefix}}ChainedStruct, sType),
"offsetof mismatch for ChainedStruct::sType");
{% for type in by_category["structure"] %}
{% set CppType = as_cppType(type.name) %}
{% set CType = as_cType(type.name) %}
static_assert(sizeof({{CppType}}) == sizeof({{CType}}), "sizeof mismatch for {{CppType}}");
static_assert(alignof({{CppType}}) == alignof({{CType}}), "alignof mismatch for {{CppType}}");
{% if type.extensible %}
static_assert(offsetof({{CppType}}, nextInChain) == offsetof({{CType}}, nextInChain),
"offsetof mismatch for {{CppType}}::nextInChain");
{% endif %}
{% for member in type.members %}
{% set memberName = member.name.camelCase() %}
static_assert(offsetof({{CppType}}, {{memberName}}) == offsetof({{CType}}, {{memberName}}),
"offsetof mismatch for {{CppType}}::{{memberName}}");
{% endfor %}
bool {{CppType}}::operator==(const {{as_cppType(type.name)}}& rhs) const {
return {% if type.extensible or type.chained -%}
(nextInChain == rhs.nextInChain) &&
{%- endif %} std::tie(
{% for member in type.members %}
{{member.name.camelCase()-}}
{{ "," if not loop.last else "" }}
{% endfor %}
) == std::tie(
{% for member in type.members %}
rhs.{{member.name.camelCase()-}}
{{ "," if not loop.last else "" }}
{% endfor %}
);
}
{% endfor %}
} // namespace {{native_namespace}}