kindred/create
1
1
Fork 0
Code Issues 53 Pull Requests Actions Packages Projects 9 Releases 2 Wiki Activity

Merge pull request #19907 from benj5378/getAttribute

Browse Source 
Base: make getAttribute template
This commit is contained in:
Chris Hennes
2025-05-12 10:39:55 -05:00
committed by GitHub
parent 68987874b3 2b6e73c29d
commit 952485dcbb
64 changed files with 834 additions and 677 deletions
Download Patch File Download Diff File Expand all files Collapse all files

88
src/Base/Reader.cpp
View File

@@ -118,39 +118,81 @@ unsigned int Base::XMLReader::getAttributeCount() const
return static_cast<unsigned int>(AttrMap.size());
}
long Base::XMLReader::getAttributeAsInteger(const char* AttrName, const char* defaultValue) const
namespace
{
return stol(getAttribute(AttrName, defaultValue));
}
unsigned long Base::XMLReader::getAttributeAsUnsigned(const char* AttrName,
const char* defaultValue) const
template<typename T>
T readerCast(const char* value)
{
return stoul(getAttribute(AttrName, defaultValue), nullptr);
if constexpr (std::is_same_v<T, const char*>) {
return value;
}
if constexpr (std::is_same_v<T, long>) {
return stol(value);
}
if constexpr (std::is_same_v<T, int>) {
return stoi(value);
}
if constexpr (std::is_same_v<T, unsigned long>) {
return stoul(value, nullptr);
}
if constexpr (std::is_same_v<T, double>) {
return stod(value, nullptr);
}
if constexpr (std::is_same_v<T, bool>) {
return std::string_view(value) != "0";
}
}
} // anonymous namespace
double Base::XMLReader::getAttributeAsFloat(const char* AttrName, const char* defaultValue) const
{
return stod(getAttribute(AttrName, defaultValue), nullptr);
}
const char* Base::XMLReader::getAttribute(const char* AttrName, // NOLINT
const char* defaultValue) const // NOLINT
template<typename T>
requires Base::XMLReader::instantiated<T>
T Base::XMLReader::getAttribute(const char* AttrName, T defaultValue) const
{
auto pos = AttrMap.find(AttrName);
if (pos != AttrMap.end()) {
return pos->second.c_str();
}
if (defaultValue) {
if (pos == AttrMap.end()) {
return defaultValue;
}
// wrong name, use hasAttribute if not sure!
std::ostringstream msg;
msg << "XML Attribute: \"" << AttrName << "\" not found";
throw Base::XMLAttributeError(msg.str());
const char* rawValue = pos->second.c_str();
return readerCast<T>(rawValue);
}
template<typename T>
requires Base::XMLReader::instantiated<T>
T Base::XMLReader::getAttribute(const char* AttrName) const
{
auto pos = AttrMap.find(AttrName);
if (pos == AttrMap.end()) {
// wrong name, use hasAttribute if not sure!
std::string msg = std::string("XML Attribute: \"") + AttrName + "\" not found";
throw Base::XMLAttributeError(msg);
}
const char* rawValue = pos->second.c_str();
return readerCast<T>(rawValue);
}
// Explicit template instantiation
template BaseExport bool Base::XMLReader::getAttribute<bool>(const char* AttrName,
bool defaultValue) const;
template BaseExport bool Base::XMLReader::getAttribute<bool>(const char* AttrName) const;
template BaseExport const char*
Base::XMLReader::getAttribute<const char*>(const char* AttrName, const char* defaultValue) const;
template BaseExport const char*
Base::XMLReader::getAttribute<const char*>(const char* AttrName) const;
template BaseExport double Base::XMLReader::getAttribute<double>(const char* AttrName,
double defaultValue) const;
template BaseExport double Base::XMLReader::getAttribute<double>(const char* AttrName) const;
template BaseExport int Base::XMLReader::getAttribute<int>(const char* AttrName,
int defaultValue) const;
template BaseExport int Base::XMLReader::getAttribute<int>(const char* AttrName) const;
template BaseExport long Base::XMLReader::getAttribute<long>(const char* AttrName,
long defaultValue) const;
template BaseExport long Base::XMLReader::getAttribute<long>(const char* AttrName) const;
template BaseExport unsigned long
Base::XMLReader::getAttribute<unsigned long>(const char* AttrName,
unsigned long defaultValue) const;
template BaseExport unsigned long
Base::XMLReader::getAttribute<unsigned long>(const char* AttrName) const;
bool Base::XMLReader::hasAttribute(const char* AttrName) const
{
return AttrMap.find(AttrName) != AttrMap.end();