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/**
** \file parse/metavar-map.hxx
** \brief Implementation of parse::MetavarMap.
*/
#pragma once
#include <sstream>
#include <string>
#include <misc/contract.hh>
#include <misc/indent.hh>
#include <parse/metavar-map.hh>
namespace parse
{
template <typename Data>
MetavarMap<Data>::MetavarMap(const std::string& name)
: name_(name)
, map_()
{}
template <typename Data> MetavarMap<Data>::~MetavarMap()
{
// At this point, every metavariable should have been taken from the map.
assertion(map_.empty()) << *this << "not empty, aborting.\n";
}
template <typename Data>
std::string MetavarMap<Data>::show(unsigned key) const
{
return '_' + name_ + '(' + std::to_string(key) + ')';
}
template <typename Data>
std::ostream& MetavarMap<Data>::dump(std::ostream& ostr) const
{
ostr << "MetavarMap<" << name_ << "> = [";
if (map_.empty())
return ostr << " ]" << misc::iendl;
ostr << misc::incindent;
for (const auto& [k, v] : map_)
ostr << misc::iendl << show(k) << " -> " << v;
return ostr << misc::decendl << "]" << misc::iendl;
}
template <typename Data>
std::string MetavarMap<Data>::append_(unsigned& count, Data* data)
{
map_[count] = data;
return show(count++);
}
template <typename Data> Data* MetavarMap<Data>::take_(unsigned key)
{
return map_.take(key);
}
template <typename Data>
std::ostream& operator<<(std::ostream& ostr, const MetavarMap<Data>& m)
{
return m.dump(ostr);
}
} // namespace parse
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