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#ifndef function_group_hh_INCLUDED
#define function_group_hh_INCLUDED
#include "exception.hh"
#include "idvaluemap.hh"
#include "string.hh"
namespace Kakoune
{
template<typename... Args>
class FunctionGroup
{
public:
using Function = std::function<void (Args...)>;
using FunctionAndId = std::pair<String, std::function<void (Args...)>>;
void operator()(Args&&... args)
{
for (auto& func : m_functions)
func.second(std::forward<Args>(args)...);
}
void append(FunctionAndId&& function)
{
if (m_functions.contains(function.first))
throw runtime_error("duplicate id: " + function.first);
m_functions.append(std::forward<FunctionAndId>(function));
}
void remove(const String& id)
{
m_functions.remove(id);
}
FunctionGroup& get_group(const String& id)
{
auto it = m_functions.find(id);
if (it == m_functions.end())
throw runtime_error("no such id: " + id);
FunctionGroup* group = it->second.template target<FunctionGroup>();
if (not group)
throw runtime_error("not a group: " + id);
return *group;
}
CandidateList complete_id(const String& prefix, ByteCount cursor_pos) const
{
return m_functions.complete_id(prefix, cursor_pos);
}
CandidateList complete_group_id(const String& prefix, ByteCount cursor_pos) const
{
return m_functions.complete_id_if(
prefix, cursor_pos, [](const FunctionAndId& func) {
return func.second.template target<FunctionGroup>() != nullptr;
});
}
private:
idvaluemap<String, Function> m_functions;
};
}
#endif // function_group_hh_INCLUDED
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