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Add support for HashMap options types

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This commit is contained in:
Maxime Coste 2017-03-06 19:57:18 +00:00
parent 420373475e
commit e9f93f1b2f
1 changed files with 41 additions and 0 deletions
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41
src/option_types.hh
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@ -7,6 +7,7 @@
#include "coord.hh"
#include "array_view.hh"
#include "id_map.hh"
#include "hash_map.hh"
#include "flags.hh"
#include "enum.hh"
@ -144,6 +145,46 @@ struct option_type_name<IdMap<T, D>>
static String name() { return format("str-to-{}-map", option_type_name<T>::name()); }
};
template<typename Key, typename Value, MemoryDomain domain>
String option_to_string(const HashMap<Key, Value, domain>& opt)
{
String res;
for (auto it = begin(opt); it != end(opt); ++it)
{
if (it != begin(opt))
res += list_separator;
String elem = escape(option_to_string(it->key), '=', '\\') + "=" +
escape(option_to_string(it->value), '=', '\\');
res += escape(elem, list_separator, '\\');
}
return res;
}
template<typename Key, typename Value, MemoryDomain domain>
void option_from_string(StringView str, HashMap<Key, Value, domain>& opt)
{
opt.clear();
for (auto& elem : split(str, list_separator, '\\'))
{
Vector<String> pair_str = split(elem, '=', '\\');
if (pair_str.size() != 2)
throw runtime_error("map option expects key=value");
Key key;
Value value;
option_from_string(pair_str[0], key);
option_from_string(pair_str[1], value);
opt.insert({ std::move(key), std::move(value) });
}
}
template<typename K, typename V, MemoryDomain D>
struct option_type_name<HashMap<K, V, D>>
{
static String name() { return format("{}-to-{}-map",
option_type_name<K>::name(),
option_type_name<V>::name()); }
};
constexpr char tuple_separator = '|';
template<size_t I, typename... Types>