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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
#include <catch2/internal/catch_enum_values_registry.hpp>
#include <catch2/internal/catch_string_manip.hpp>
#include <cassert>
namespace Catch {
IMutableEnumValuesRegistry::~IMutableEnumValuesRegistry() = default;
namespace Detail {
namespace {
// Extracts the actual name part of an enum instance
// In other words, it returns the Blue part of Bikeshed::Colour::Blue
StringRef extractInstanceName(StringRef enumInstance) {
// Find last occurrence of ":"
size_t name_start = enumInstance.size();
while (name_start > 0 && enumInstance[name_start - 1] != ':') {
--name_start;
}
return enumInstance.substr(name_start, enumInstance.size() - name_start);
}
}
std::vector<StringRef> parseEnums( StringRef enums ) {
auto enumValues = splitStringRef( enums, ',' );
std::vector<StringRef> parsed;
parsed.reserve( enumValues.size() );
for( auto const& enumValue : enumValues ) {
parsed.push_back(trim(extractInstanceName(enumValue)));
}
return parsed;
}
EnumInfo::~EnumInfo() = default;
StringRef EnumInfo::lookup( int value ) const {
for( auto const& valueToName : m_values ) {
if( valueToName.first == value )
return valueToName.second;
}
return "{** unexpected enum value **}"_sr;
}
Catch::Detail::unique_ptr<EnumInfo> makeEnumInfo( StringRef enumName, StringRef allValueNames, std::vector<int> const& values ) {
auto enumInfo = Catch::Detail::make_unique<EnumInfo>();
enumInfo->m_name = enumName;
enumInfo->m_values.reserve( values.size() );
const auto valueNames = Catch::Detail::parseEnums( allValueNames );
assert( valueNames.size() == values.size() );
std::size_t i = 0;
for( auto value : values )
enumInfo->m_values.emplace_back(value, valueNames[i++]);
return enumInfo;
}
EnumInfo const& EnumValuesRegistry::registerEnum( StringRef enumName, StringRef allValueNames, std::vector<int> const& values ) {
m_enumInfos.push_back(makeEnumInfo(enumName, allValueNames, values));
return *m_enumInfos.back();
}
} // Detail
} // Catch
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