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Code Issues Releases Wiki Activity

ircd::json: Default selection to all keys.

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This commit is contained in:
Jason Volk 2018-05-20 01:37:23 -07:00
parent cb7d19f7a0
commit fb1c7236ac
1 changed files with 19 additions and 16 deletions
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35
include/ircd/json/tuple/keys.h
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@ -26,7 +26,7 @@ template<class tuple> struct keys;
/// array so you cannot rely on this for a key's index into the tuple.
template<class tuple>
struct ircd::json::keys
:std::array<ircd::string_view, tuple::size()>
:std::array<string_view, tuple::size()>
{
struct selection;
struct include;
@ -36,8 +36,7 @@ struct ircd::json::keys
operator vector_view<const string_view>() const;
explicit keys(const selection &);
keys();
constexpr keys(const selection & = {});
};
/// Selection of keys in a tuple represented by a bitset. Users generally
@ -48,14 +47,20 @@ struct ircd::json::keys<tuple>::selection
:std::bitset<tuple::size()>
{
template<class closure>
bool until(closure &&function) const;
constexpr bool until(closure &&function) const;
template<class closure>
void for_each(closure &&function) const;
constexpr void for_each(closure &&function) const;
template<class it_a,
class it_b>
it_a transform(it_a it, const it_b end) const;
constexpr it_a transform(it_a it, const it_b end) const;
constexpr selection(const uint64_t &val = -1)
:std::bitset<tuple::size()>{val}
{}
static_assert(tuple::size() <= sizeof(uint64_t) * 8);
};
/// Construct this class with a list of keys you want to select for a given
@ -66,7 +71,9 @@ struct ircd::json::keys<tuple>::include
:selection
{
include(const vector_view<const string_view> &list)
:selection{0}
{
assert(this->none());
for(const auto &key : list)
this->set(indexof<tuple>(key), true);
}
@ -84,8 +91,9 @@ struct ircd::json::keys<tuple>::exclude
:selection
{
exclude(const vector_view<const string_view> &list)
:selection{}
{
this->set();
assert(this->all());
for(const auto &key : list)
this->set(indexof<tuple>(key), false);
}
@ -102,7 +110,7 @@ struct ircd::json::keys<tuple>::exclude
template<class tuple>
template<class it_a,
class it_b>
it_a
constexpr it_a
ircd::json::keys<tuple>::selection::transform(it_a it,
const it_b end)
const
@ -122,7 +130,7 @@ const
template<class tuple>
template<class closure>
void
constexpr void
ircd::json::keys<tuple>::selection::for_each(closure &&function)
const
{
@ -135,7 +143,7 @@ const
template<class tuple>
template<class closure>
bool
constexpr bool
ircd::json::keys<tuple>::selection::until(closure &&function)
const
{
@ -152,12 +160,7 @@ const
//
template<class tuple>
ircd::json::keys<tuple>::keys()
{
_key_transform<tuple>(this->begin(), this->end());
}
template<class tuple>
constexpr
ircd::json::keys<tuple>::keys(const selection &selection)
{
selection.transform(this->begin(), this->end());