libpEpDatatypes/src/stringlist.cc

#include "types.hh"

#include <pEp/status_to_string.hh> // from libpEpAdapter
#include <pEp/stringlist.h>

#include <string>

namespace pEp
{
    template<>
    void Wrapper<::stringlist_t*>::_free(::stringlist_t* sl)
    {
        ::free_stringlist(sl);
    }
    
    template<>
    const char* stringlist_t::* const ListWrapper<stringlist_t*, const char*>::Value
        = const_cast<const char* stringlist_t::*>(&stringlist_t::value);

    template<>
    int StringList::size() const
    {
        return stringlist_length(value);
    }

    // faster than .size()==0 because it's not necessary to iterate throgh the whole list
    template<>
    bool StringList::empty() const
    {
        return !(value && value->value);
    }
    
    template<>
    void StringList::erase( const StringList::iterator& it)
    {
        if(it.value && it.value->value)
        {
            value = stringlist_delete(value, it.value->value);
        }
    }
    
    template<>
    void StringList::clear()
    {
        free_stringlist(value);
        value = nullptr;
    }
    
    template<>
    void StringList::push_back(const char*&& s)
    {
        auto last = stringlist_add(value, s);
        if(value==nullptr)
            value = last;
    }
    
    
    template<>
    ListWrapper<::stringlist_t*, const char*>::ListWrapper(const std::initializer_list<const char*>& il)
    : StringList{}
    {
        ::stringlist_t* last  = nullptr;
        for(const char* s : il)
        {
            last = stringlist_add(last, s);
            if(last==nullptr)
            {
                throw std::runtime_error("Cannot create StringPairList from {}: Out Of Memory.");
            }
            if(value==nullptr)
                value = last; // save the head of linked list.
        }
    }

////////////////

    template class ListWrapper<::stringlist_t*, const char*>;

} // end of namespace pEp