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More const, scope reductions, move fixes

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This commit is contained in:
Jacek Galowicz 2023-11-06 15:47:25 +01:00
parent f404e9b3b3
commit a4b7df7bfa
1 changed files with 27 additions and 33 deletions
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60
src/libutil/config.cc
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@ -36,27 +36,25 @@ bool Config::set(const std::string & name, const std::string & value)
void Config::addSetting(AbstractSetting * setting)
{
_settings.emplace(setting->name, Config::SettingData{false, setting});
for (auto & alias : setting->aliases)
for (const auto & alias : setting->aliases)
_settings.emplace(alias, Config::SettingData{true, setting});
bool set = false;
auto i = unknownSettings.find(setting->name);
if (i != unknownSettings.end()) {
setting->set(i->second);
if (auto i = unknownSettings.find(setting->name); i != unknownSettings.end()) {
setting->set(std::move(i->second));
setting->overridden = true;
unknownSettings.erase(i);
set = true;
}
for (auto & alias : setting->aliases) {
auto i = unknownSettings.find(alias);
if (i != unknownSettings.end()) {
if (auto i = unknownSettings.find(alias); i != unknownSettings.end()) {
if (set)
warn("setting '%s' is set, but it's an alias of '%s' which is also set",
alias, setting->name);
else {
setting->set(i->second);
setting->set(std::move(i->second));
setting->overridden = true;
unknownSettings.erase(i);
set = true;
@ -71,7 +69,7 @@ AbstractConfig::AbstractConfig(StringMap initials)
void AbstractConfig::warnUnknownSettings()
{
for (auto & s : unknownSettings)
for (const auto & s : unknownSettings)
warn("unknown setting '%s'", s.first);
}
@ -85,7 +83,7 @@ void AbstractConfig::reapplyUnknownSettings()
void Config::getSettings(std::map<std::string, SettingInfo> & res, bool overriddenOnly)
{
for (auto & opt : _settings)
for (const auto & opt : _settings)
if (!opt.second.isAlias && (!overriddenOnly || opt.second.setting->overridden))
res.emplace(opt.first, SettingInfo{opt.second.setting->to_string(), opt.second.setting->description});
}
@ -101,8 +99,7 @@ void AbstractConfig::applyConfig(const std::string & contents, const std::string
line += contents[pos++];
pos++;
auto hash = line.find('#');
if (hash != std::string::npos)
if (auto hash = line.find('#'); hash != line.npos)
line = std::string(line, 0, hash);
auto tokens = tokenizeString<std::vector<std::string>>(line);
@ -135,24 +132,24 @@ void AbstractConfig::applyConfig(const std::string & contents, const std::string
if (tokens[1] != "=")
throw UsageError("illegal configuration line '%1%' in '%2%'", line, path);
std::string name = tokens[0];
std::string name = std::move(tokens[0]);
auto i = tokens.begin();
advance(i, 2);
parsedContents.push_back({
name,
std::move(name),
concatStringsSep(" ", Strings(i, tokens.end())),
});
};
// First apply experimental-feature related settings
for (auto & [name, value] : parsedContents)
for (const auto & [name, value] : parsedContents)
if (name == "experimental-features" || name == "extra-experimental-features")
set(name, value);
// Then apply other settings
for (auto & [name, value] : parsedContents)
for (const auto & [name, value] : parsedContents)
if (name != "experimental-features" && name != "extra-experimental-features")
set(name, value);
}
@ -174,7 +171,7 @@ void Config::resetOverridden()
nlohmann::json Config::toJSON()
{
auto res = nlohmann::json::object();
for (auto & s : _settings)
for (const auto & s : _settings)
if (!s.second.isAlias)
res.emplace(s.first, s.second.setting->toJSON());
return res;
@ -182,8 +179,8 @@ nlohmann::json Config::toJSON()
std::string Config::toKeyValue()
{
auto res = std::string();
for (auto & s : _settings)
std::string res;
for (const auto & s : _settings)
if (s.second.isAlias)
res += fmt("%s = %s\n", s.first, s.second.setting->to_string());
return res;
@ -205,7 +202,7 @@ AbstractSetting::AbstractSetting(
: name(name)
, description(stripIndentation(description))
, aliases(aliases)
, experimentalFeature(experimentalFeature)
, experimentalFeature(std::move(experimentalFeature))
{
}
@ -284,14 +281,14 @@ template<> void BaseSetting<bool>::convertToArg(Args & args, const std::string &
.longName = name,
.description = fmt("Enable the `%s` setting.", name),
.category = category,
.handler = {[this]() { override(true); }},
.handler = {[this] { override(true); }},
.experimentalFeature = experimentalFeature,
});
args.addFlag({
.longName = "no-" + name,
.description = fmt("Disable the `%s` setting.", name),
.category = category,
.handler = {[this]() { override(false); }},
.handler = {[this] { override(false); }},
.experimentalFeature = experimentalFeature,
});
}
@ -333,8 +330,7 @@ template<> std::set<ExperimentalFeature> BaseSetting<std::set<ExperimentalFeatur
{
std::set<ExperimentalFeature> res;
for (auto & s : tokenizeString<StringSet>(str)) {
auto thisXpFeature = parseExperimentalFeature(s);
if (thisXpFeature)
if (auto thisXpFeature = parseExperimentalFeature(s); thisXpFeature)
res.insert(thisXpFeature.value());
else
warn("unknown experimental feature '%s'", s);
@ -351,7 +347,7 @@ template<> void BaseSetting<std::set<ExperimentalFeature>>::appendOrSet(std::set
template<> std::string BaseSetting<std::set<ExperimentalFeature>>::to_string() const
{
StringSet stringifiedXpFeatures;
for (auto & feature : value)
for (const auto & feature : value)
stringifiedXpFeatures.insert(std::string(showExperimentalFeature(feature)));
return concatStringsSep(" ", stringifiedXpFeatures);
}
@ -359,9 +355,8 @@ template<> std::string BaseSetting<std::set<ExperimentalFeature>>::to_string() c
template<> StringMap BaseSetting<StringMap>::parse(const std::string & str) const
{
StringMap res;
for (auto & s : tokenizeString<Strings>(str)) {
auto eq = s.find_first_of('=');
if (std::string::npos != eq)
for (const auto & s : tokenizeString<Strings>(str)) {
if (auto eq = s.find_first_of('='); s.npos != eq)
res.emplace(std::string(s, 0, eq), std::string(s, eq + 1));
// else ignored
}
@ -376,10 +371,9 @@ template<> void BaseSetting<StringMap>::appendOrSet(StringMap newValue, bool app
template<> std::string BaseSetting<StringMap>::to_string() const
{
Strings kvstrs;
std::transform(value.begin(), value.end(), back_inserter(kvstrs),
[&](auto kvpair){ return kvpair.first + "=" + kvpair.second; });
return concatStringsSep(" ", kvstrs);
return std::transform_reduce(value.cbegin(), value.cend(), std::string{},
[](const auto & l, const auto &r) { return l + " " + r; },
[](const auto & kvpair){ return kvpair.first + "=" + kvpair.second; });
}
template class BaseSetting<int>;
@ -468,7 +462,7 @@ void GlobalConfig::resetOverridden()
nlohmann::json GlobalConfig::toJSON()
{
auto res = nlohmann::json::object();
for (auto & config : *configRegistrations)
for (const auto & config : *configRegistrations)
res.update(config->toJSON());
return res;
}
@ -478,7 +472,7 @@ std::string GlobalConfig::toKeyValue()
std::string res;
std::map<std::string, Config::SettingInfo> settings;
globalConfig.getSettings(settings);
for (auto & s : settings)
for (const auto & s : settings)
res += fmt("%s = %s\n", s.first, s.second.value);
return res;
}