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Introduce VULKAN_HPP_NO_STRUCT_CONSTRUCTORS so support designated initializers.

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You have to define VULKAN_HPP_NO_STRUCT_CONSTRUCTORS to remove all the struct constructors from vulkan.hpp, so that you can use designated initializers on them.
Of course, makes only sense with C++20.
This commit is contained in:
asuessenbach
2020-06-24 11:28:43 +02:00
parent bb8c322c94
commit db58507063
7 changed files with 5643 additions and 4432 deletions
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103
VulkanHppGenerator.cpp
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@@ -3464,10 +3464,20 @@ void VulkanHppGenerator::appendStruct( std::string &
}
}
void VulkanHppGenerator::appendStructAssignmentOperator( std::string & str,
std::pair<std::string, StructureData> const & structData,
std::string const & prefix ) const
void VulkanHppGenerator::appendStructAssignmentOperators( std::string & str,
std::pair<std::string, StructureData> const & structData,
std::string const & prefix ) const
{
static const std::string assignmentFromVulkanType = R"(
${prefix}${structName} & operator=( Vk${structName} const & rhs ) VULKAN_HPP_NOEXCEPT
${prefix}{
${prefix} *this = *reinterpret_cast<VULKAN_HPP_NAMESPACE::${structName} const *>( &rhs );
${prefix} return *this;
${prefix}}
)";
str += replaceWithMap( assignmentFromVulkanType,
{ { "prefix", prefix }, { "structName", stripPrefix( structData.first, "Vk" ) } } );
// we need an assignment operator if there is constant sType in this struct
std::string copyTemplate;
if ( ( nonConstSTypeStructs.find( structData.first ) == nonConstSTypeStructs.end() ) &&
@@ -3548,14 +3558,22 @@ std::string
: "";
}
void VulkanHppGenerator::appendStructConstructor( std::string & str,
std::pair<std::string, StructureData> const & structData,
std::string const & prefix ) const
void VulkanHppGenerator::appendStructConstructors( std::string & str,
std::pair<std::string, StructureData> const & structData,
std::string const & prefix ) const
{
// the constructor with all the elements as arguments, with defaults
std::string constexprString = constructConstexprString( structData );
std::string ctorOpening = prefix + constexprString + stripPrefix( structData.first, "Vk" );
std::string indentation( ctorOpening.size() + 2, ' ' );
// and the simple copy constructor from the corresponding vulkan structure
static const std::string constructors = R"(
${prefix}${constexpr}${structName}(${arguments}) VULKAN_HPP_NOEXCEPT
${prefix}${initializers}
${prefix}{}
${prefix}${structName}( Vk${structName} const & rhs ) VULKAN_HPP_NOEXCEPT
${prefix}{
${prefix} *this = rhs;
${prefix}}
)";
std::string arguments, initializers;
bool listedArgument = false;
@@ -3563,29 +3581,32 @@ void VulkanHppGenerator::appendStructConstructor( std::string &
for ( auto const & member : structData.second.members )
{
// gather the arguments
listedArgument = appendStructConstructorArgument( arguments, listedArgument, indentation, member );
listedArgument = appendStructConstructorArgument( arguments, listedArgument, member );
// gather the initializers; skip members 'pNext' and 'sType', they are directly set by initializers
if ( ( member.name != "pNext" ) && ( member.name != "sType" ) )
{
initializers += prefix + " " + ( firstArgument ? ":" : "," ) + " " + member.name + "( " + member.name + "_ )\n";
initializers += ( firstArgument ? ":" : "," ) + std::string( " " ) + member.name + "( " + member.name + "_ )";
firstArgument = false;
}
}
str += ctorOpening + ( arguments.empty() ? "()" : std::string( "( " + arguments + " )" ) ) +
" VULKAN_HPP_NOEXCEPT\n" + initializers + prefix + "{}\n";
str += replaceWithMap( constructors,
{ { "arguments", arguments },
{ "constexpr", constructConstexprString( structData ) },
{ "initializers", initializers },
{ "prefix", prefix },
{ "structName", stripPrefix( structData.first, "Vk" ) } } );
}
bool VulkanHppGenerator::appendStructConstructorArgument( std::string & str,
bool listedArgument,
std::string const & indentation,
MemberData const & memberData ) const
bool VulkanHppGenerator::appendStructConstructorArgument( std::string & str,
bool listedArgument,
MemberData const & memberData ) const
{
// skip members 'pNext' and 'sType', as they are never explicitly set
if ( ( memberData.name != "pNext" ) && ( memberData.name != "sType" ) )
{
str += ( listedArgument ? ( ",\n" + indentation ) : "" );
str += ( listedArgument ? ( "," ) : "" );
if ( memberData.arraySizes.empty() )
{
str += memberData.type.compose() + " ";
@@ -3611,24 +3632,6 @@ bool VulkanHppGenerator::appendStructConstructorArgument( std::string & st
return listedArgument;
}
void VulkanHppGenerator::appendStructCopyConstructors( std::string & str, std::string const & name ) const
{
static const std::string templateString = R"(
${name}( Vk${name} const & rhs ) VULKAN_HPP_NOEXCEPT
{
*this = rhs;
}
${name}& operator=( Vk${name} const & rhs ) VULKAN_HPP_NOEXCEPT
{
*this = *reinterpret_cast<VULKAN_HPP_NAMESPACE::${name} const *>(&rhs);
return *this;
}
)";
str += replaceWithMap( templateString, { { "name", name } } );
}
std::string VulkanHppGenerator::appendStructMembers( std::string & str,
std::pair<std::string, StructureData> const & structData,
std::string const & prefix ) const
@@ -3791,8 +3794,7 @@ void VulkanHppGenerator::appendStructSubConstructor( std::string &
bool listedArgument = true;
for ( size_t i = subStruct->second.members.size(); i < structData.second.members.size(); i++ )
{
listedArgument =
appendStructConstructorArgument( subArguments, listedArgument, indentation, structData.second.members[i] );
listedArgument = appendStructConstructorArgument( subArguments, listedArgument, structData.second.members[i] );
assert( structData.second.members[i].arraySizes.empty() );
subCopies +=
@@ -3816,10 +3818,11 @@ void VulkanHppGenerator::appendStructure( std::string &
str += "\n" + enter;
std::string constructorAndSetters;
appendStructConstructor( constructorAndSetters, structure, " " );
constructorAndSetters += "#if !defined( VULKAN_HPP_NO_STRUCT_CONSTRUCTORS )";
appendStructConstructors( constructorAndSetters, structure, " " );
appendStructSubConstructor( constructorAndSetters, structure, " " );
appendStructAssignmentOperator( constructorAndSetters, structure, " " );
appendStructCopyConstructors( constructorAndSetters, stripPrefix( structure.first, "Vk" ) );
constructorAndSetters += "#endif // !defined( VULKAN_HPP_NO_STRUCT_CONSTRUCTORS )\n";
appendStructAssignmentOperators( constructorAndSetters, structure, " " );
if ( !structure.second.returnedOnly )
{
// only structs that are not returnedOnly get setters!
@@ -7904,16 +7907,16 @@ int main( int argc, char ** argv )
# define VULKAN_HPP_CPLUSPLUS __cplusplus
#endif
#if VULKAN_HPP_CPLUSPLUS < 201103L
static_assert( false, "vulkan.hpp needs at least c++ standard version 11" );
#elif VULKAN_HPP_CPLUSPLUS < 201402L
# define VULKAN_HPP_CPP_VERSION 11
#elif VULKAN_HPP_CPLUSPLUS < 201703L
# define VULKAN_HPP_CPP_VERSION 14
#elif VULKAN_HPP_CPLUSPLUS < 202002L
# define VULKAN_HPP_CPP_VERSION 17
#else
#if 201703L < VULKAN_HPP_CPLUSPLUS
# define VULKAN_HPP_CPP_VERSION 20
#elif 201402L < VULKAN_HPP_CPLUSPLUS
# define VULKAN_HPP_CPP_VERSION 17
#elif 201103L < VULKAN_HPP_CPLUSPLUS
# define VULKAN_HPP_CPP_VERSION 14
#elif 199711L < VULKAN_HPP_CPLUSPLUS
# define VULKAN_HPP_CPP_VERSION 11
#else
# error "vulkan.hpp needs at least c++ standard version 11"
#endif
#include <algorithm>