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Simplify handling of enum aliases (#1850)

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Andreas Süßenbach 2024-04-24 08:33:25 +02:00 committed by GitHub
parent 2fbc146fee
commit 7bd57c7290
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3 changed files with 27 additions and 66 deletions
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63
VulkanHppGenerator.cpp
View File

@ -1231,12 +1231,6 @@ void VulkanHppGenerator::checkEnumCorrectness() const
checkEnumCorrectness( ext.requireData );
}
// enum alias checks
for ( auto const & alias : m_enumAliases )
{
checkForError( m_enums.contains( alias.second.name ), alias.second.xmlLine, "enum <" + alias.first + "> uses unknown alias <" + alias.second.name + ">" );
}
// special check for VkFormat
if ( !m_formats.empty() )
{
@ -1305,7 +1299,7 @@ void VulkanHppGenerator::checkEnumCorrectness( std::vector<RequireData> const &
else
{
// every enum not listed in the m_enums, should be an alias of such a thing
checkForError( m_enumAliases.contains( type ), typeIt->second.xmlLine, "enum type <" + type + "> is not listed as an enum" );
checkForError( findByNameOrAlias( m_enums, type ) != m_enums.end(), typeIt->second.xmlLine, "enum type <" + type + "> is not listed as an enum" );
}
}
break;
@ -5429,9 +5423,9 @@ std::string VulkanHppGenerator::generateCppModuleEnumUsings() const
auto const enumName = stripPrefix( enumIt->first, "Vk" );
localUsings += replaceWithMap( usingTemplate, { { "enumName", enumName } } );
if ( auto const aliasIt = findAlias( enumIt->first, m_enumAliases ); aliasIt != m_enumAliases.end() )
for ( auto const & alias : enumIt->second.aliases )
{
localUsings += replaceWithMap( usingTemplate, { { "enumName", stripPrefix( aliasIt->first, "Vk" ) } } );
localUsings += replaceWithMap( usingTemplate, { { "enumName", stripPrefix( alias.first, "Vk" ) } } );
}
if ( auto const bitmaskIt =
@ -6561,7 +6555,6 @@ std::string VulkanHppGenerator::generateEnum( std::pair<std::string, EnumData> c
bitmask = generateBitmask( bitmaskIt, surroundingProtect );
}
auto aliasEnumIt = findAlias( enumData.first, m_enumAliases );
std::string enumValues, previousEnter, previousLeave;
std::map<std::string, std::string> valueToNameMap;
for ( auto const & value : enumData.second.values )
@ -6585,36 +6578,35 @@ std::string VulkanHppGenerator::generateEnum( std::pair<std::string, EnumData> c
}
enumValues += " " + valueName + " = " + value.name + ",\n";
for ( auto const & alias : value.aliases )
for ( auto const & valueAlias : value.aliases )
{
std::string enumName = enumData.first;
auto aliasIt = std::find_if( m_enumAliases.begin(), m_enumAliases.end(), [&enumData]( auto const & ad ) { return ad.second.name == enumData.first; } );
if ( aliasIt != m_enumAliases.end() )
if ( !enumData.second.aliases.empty() )
{
assert( std::find_if( std::next( aliasIt ), m_enumAliases.end(), [&enumData]( auto const & ad ) { return ad.second.name == enumData.first; } ) ==
m_enumAliases.end() );
assert( enumData.second.aliases.size() == 1 );
auto enumAliasIt = enumData.second.aliases.begin();
std::string enumTag = findTag( enumData.first );
std::string aliasTag = findTag( aliasIt->first );
std::string valueTag = findTag( alias.first );
if ( ( stripPostfix( enumData.first, enumTag ) == stripPostfix( aliasIt->first, aliasTag ) ) && ( aliasTag == valueTag ) )
std::string aliasTag = findTag( enumAliasIt->first );
std::string valueTag = findTag( valueAlias.first );
if ( ( stripPostfix( enumData.first, enumTag ) == stripPostfix( enumAliasIt->first, aliasTag ) ) && ( aliasTag == valueTag ) )
{
enumName = aliasIt->first;
enumName = enumAliasIt->first;
}
}
std::string aliasName = generateEnumValueName( enumName, alias.first, enumData.second.isBitmask );
auto [mapIt, inserted] = valueToNameMap.insert( { aliasName, alias.first } );
std::string aliasName = generateEnumValueName( enumName, valueAlias.first, enumData.second.isBitmask );
auto [mapIt, inserted] = valueToNameMap.insert( { aliasName, valueAlias.first } );
if ( inserted )
{
enumValues += " " + aliasName + " = " + alias.first + ",\n";
enumValues += " " + aliasName + " = " + valueAlias.first + ",\n";
}
else
{
// some aliases are so close to the original, that no new entry can be generated!
assert( mapIt->second != alias.first );
assert( mapIt->second != valueAlias.first );
checkForError( ( mapIt->second == value.name ) || value.aliases.contains( mapIt->second ),
alias.second,
"generated enum alias value name <" + aliasName + ">, generated from <" + alias.first +
valueAlias.second,
"generated enum alias value name <" + aliasName + ">, generated from <" + valueAlias.first +
"> is already generated from different enum value <" + mapIt->second + ">" );
}
}
@ -6634,9 +6626,9 @@ std::string VulkanHppGenerator::generateEnum( std::pair<std::string, EnumData> c
}
std::string enumUsing;
if ( aliasEnumIt != m_enumAliases.end() )
for ( auto const & alias : enumData.second.aliases )
{
enumUsing += " using " + stripPrefix( aliasEnumIt->first, "Vk" ) + " = " + stripPrefix( enumData.first, "Vk" ) + ";\n";
enumUsing += " using " + stripPrefix( alias.first, "Vk" ) + " = " + stripPrefix( enumData.first, "Vk" ) + ";\n";
}
const std::string enumTemplate = R"( enum class ${enumName}${baseType}
@ -12963,15 +12955,7 @@ void VulkanHppGenerator::readEnums( tinyxml2::XMLElement const * element )
checkForError( !type.empty(), line, "enum without type" );
// get the EnumData entry in enum map
auto enumIt = m_enums.find( name );
if ( enumIt == m_enums.end() )
{
auto aliasIt = m_enumAliases.find( name );
if ( aliasIt != m_enumAliases.end() )
{
enumIt = m_enums.find( aliasIt->second.name );
}
}
auto enumIt = findByNameOrAlias( m_enums, name );
checkForError( enumIt != m_enums.end(), line, "enum <" + name + "> is not listed as enum in the types section" );
checkForError( enumIt->second.values.empty(), line, "enum <" + name + "> already holds values" );
@ -13871,8 +13855,7 @@ void VulkanHppGenerator::readRequireEnum(
// enum aliases that don't extend something are listed as constants
auto typeIt = m_types.find( alias );
checkForError( typeIt != m_types.end(), line, "enum alias <" + name + "> is an alias of an unknown enum <" + alias + ">" );
checkForError(
typeIt->second.category == TypeCategory::Constant, line, "enum alias <" + name + "> is an alias of a non-constant type <" + alias + ">" );
checkForError( typeIt->second.category == TypeCategory::Constant, line, "enum alias <" + name + "> is an alias of a non-constant type <" + alias + ">" );
checkForError(
m_types.insert( { name, TypeData{ TypeCategory::Constant, { requiredBy }, line } } ).second, line, "required enum <" + name + "> already specified" );
@ -14837,7 +14820,9 @@ void VulkanHppGenerator::readTypeEnum( tinyxml2::XMLElement const * element, std
}
else
{
checkForError( m_enumAliases.insert( { name, { alias, line } } ).second, line, "enum <" + name + "> already specified as some alias" );
auto enumIt = m_enums.find( alias );
checkForError( enumIt != m_enums.end(), line, "enum <" + name + "> is an alias of an unknown enum <" + alias + ">" );
checkForError( enumIt->second.aliases.insert( { name, line } ).second, line, "enum <" + name + "> already specified as some alias" );
}
}

2
VulkanHppGenerator.hpp
View File

@ -160,6 +160,7 @@ private:
void addEnumValue(
int line, std::string const & valueName, std::string const & protect, std::string const & bitpos, std::string const & value, bool supported );
std::map<std::string, int> aliases = {};
std::string bitwidth = {};
bool isBitmask = false;
std::vector<EnumValueAlias> valueAliases = {}; // temporary storage for aliases, as they might be specified before the actual value is specified
@ -1037,7 +1038,6 @@ private:
std::map<std::string, ConstantData> m_constants;
std::map<std::string, DefineData> m_defines;
DefinesPartition m_definesPartition; // partition defined macros into mutually-exclusive sets of callees, callers, and values
std::map<std::string, AliasData> m_enumAliases;
std::map<std::string, EnumData> m_enums;
std::set<std::string> m_extendedStructs; // structs which are referenced by the structextends tag
std::vector<ExtensionData> m_extensions;

26
XMLHelper.hpp
View File

@ -422,7 +422,7 @@ inline std::string stripPrefix( std::string const & value, std::string const & p
inline std::string toCamelCase( std::string const & value, bool keepSeparatedNumbersSeparated )
{
assert( !value.empty() && ( isupper( value[0] ) || isdigit( value[0] ) ) );
assert( value.empty() || isupper( value[0] ) || isdigit( value[0] ) );
std::string result;
result.reserve( value.size() );
for ( size_t i = 0; i < value.size(); ++i )
@ -439,30 +439,6 @@ inline std::string toCamelCase( std::string const & value, bool keepSeparatedNum
result.push_back( ( ( 0 == i ) || ( value[i - 1] == '_' ) || isdigit( value[i - 1] ) ) ? value[i] : static_cast<char>( tolower( value[i] ) ) );
}
}
#if 0
bool keepUpper = true;
for ( auto c : value )
{
if ( c == '_' )
{
keepUpper = true;
}
else if ( isdigit( c ) )
{
keepUpper = true;
result.push_back( c );
}
else if ( keepUpper )
{
result.push_back( c );
keepUpper = false;
}
else
{
result.push_back( static_cast<char>( tolower( c ) ) );
}
}
#endif
return result;
}