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fix: add overload for find_or with toml::value

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ToruNiina 2019-08-07 14:55:30 +09:00
parent fb91936a1d
commit 0f491c7f3a
1 changed files with 56 additions and 0 deletions
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56
toml/get.hpp
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@ -575,6 +575,28 @@ find(basic_value<C, M, V>&& v, const ::toml::key& ky, Ts&& ... keys)
// ============================================================================
// get_or(value, fallback)
template<typename C,
template<typename ...> class M, template<typename ...> class V>
basic_value<C, M, V> const&
get_or(const basic_value<C, M, V>& v, const basic_value<C, M, V>&)
{
return v;
}
template<typename C,
template<typename ...> class M, template<typename ...> class V>
basic_value<C, M, V>&
get_or(basic_value<C, M, V>& v, basic_value<C, M, V>&)
{
return v;
}
template<typename C,
template<typename ...> class M, template<typename ...> class V>
basic_value<C, M, V>
get_or(basic_value<C, M, V>&& v, basic_value<C, M, V>&&)
{
return v;
}
// ----------------------------------------------------------------------------
// specialization for the exact toml types (return type becomes lvalue ref)
@ -726,6 +748,40 @@ get_or(const basic_value<C, M, V>& v, T&& opt)
// ===========================================================================
// find_or(value, key, fallback)
template<typename C,
template<typename ...> class M, template<typename ...> class V>
basic_value<C, M, V> const&
find_or(const basic_value<C, M, V>& v, const key& ky,
const basic_value<C, M, V>& opt)
{
if(!v.is_table()) {return opt;}
const auto& tab = v.as_table();
if(tab.count(ky) == 0) {return opt;}
return tab.at(ky);
}
template<typename C,
template<typename ...> class M, template<typename ...> class V>
basic_value<C, M, V>&
find_or(basic_value<C, M, V>& v, const toml::key& ky, basic_value<C, M, V>& opt)
{
if(!v.is_table()) {return opt;}
auto& tab = v.as_table();
if(tab.count(ky) == 0) {return opt;}
return tab[ky];
}
template<typename C,
template<typename ...> class M, template<typename ...> class V>
basic_value<C, M, V>
find_or(basic_value<C, M, V>&& v, const toml::key& ky, basic_value<C, M, V>&& opt)
{
if(!v.is_table()) {return opt;}
auto tab = std::move(v).as_table();
if(tab.count(ky) == 0) {return opt;}
return std::move(tab[ky]);
}
// ---------------------------------------------------------------------------
// exact types (return type can be a reference)
template<typename T, typename C,