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Remove range_default_formatter

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This commit is contained in:
Victor Zverovich 2024-05-04 07:15:15 -07:00
parent 19afc9c3bb
commit ceb406d06c
1 changed files with 50 additions and 59 deletions
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109
include/fmt/ranges.h
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@ -19,6 +19,8 @@
FMT_BEGIN_NAMESPACE
enum class range_format { disabled, map, set, sequence, string, debug_string };
namespace detail {
template <typename T> class is_map {
@ -248,6 +250,18 @@ FMT_CONSTEXPR auto maybe_set_debug_format(Formatter& f, bool set)
template <typename Formatter>
FMT_CONSTEXPR void maybe_set_debug_format(Formatter&, ...) {}
template <typename T>
struct range_format_kind_
: std::integral_constant<range_format,
std::is_same<uncvref_type<T>, T>::value
? range_format::disabled
: is_map<T>::value ? range_format::map
: is_set<T>::value ? range_format::set
: range_format::sequence> {};
template <range_format K>
using range_format_constant = std::integral_constant<range_format, K>;
// These are not generic lambdas for compatibility with C++11.
template <typename ParseContext> struct parse_empty_specs {
template <typename Formatter> FMT_CONSTEXPR void operator()(Formatter& f) {
@ -487,62 +501,6 @@ struct range_formatter<
}
};
enum class range_format { disabled, map, set, sequence, string, debug_string };
namespace detail {
template <typename T>
struct range_format_kind_
: std::integral_constant<range_format,
std::is_same<uncvref_type<T>, T>::value
? range_format::disabled
: is_map<T>::value ? range_format::map
: is_set<T>::value ? range_format::set
: range_format::sequence> {};
template <range_format K, typename R, typename Char, typename Enable = void>
struct range_default_formatter;
template <range_format K>
using range_format_constant = std::integral_constant<range_format, K>;
template <range_format K, typename R, typename Char>
struct range_default_formatter<
K, R, Char,
enable_if_t<(K == range_format::sequence || K == range_format::map ||
K == range_format::set)>> {
using range_type = detail::maybe_const_range<R>;
range_formatter<detail::uncvref_type<range_type>, Char> underlying_;
FMT_CONSTEXPR range_default_formatter() { init(range_format_constant<K>()); }
FMT_CONSTEXPR void init(range_format_constant<range_format::set>) {
underlying_.set_brackets(detail::string_literal<Char, '{'>{},
detail::string_literal<Char, '}'>{});
}
FMT_CONSTEXPR void init(range_format_constant<range_format::map>) {
underlying_.set_brackets(detail::string_literal<Char, '{'>{},
detail::string_literal<Char, '}'>{});
underlying_.underlying().set_brackets({}, {});
underlying_.underlying().set_separator(
detail::string_literal<Char, ':', ' '>{});
}
FMT_CONSTEXPR void init(range_format_constant<range_format::sequence>) {}
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return underlying_.parse(ctx);
}
template <typename FormatContext>
auto format(range_type& range, FormatContext& ctx) const
-> decltype(ctx.out()) {
return underlying_.format(range, ctx);
}
};
} // namespace detail
template <typename T, typename Char, typename Enable = void>
struct range_format_kind
: conditional_t<
@ -559,9 +517,42 @@ struct formatter<
,
detail::is_formattable_delayed<R, Char>
#endif
>::value>>
: detail::range_default_formatter<range_format_kind<R, Char>::value, R,
Char> {
>::value>> {
private:
using range_type = detail::maybe_const_range<R>;
range_formatter<detail::uncvref_type<range_type>, Char> range_formatter_;
FMT_CONSTEXPR void init(detail::range_format_constant<range_format::set>) {
range_formatter_.set_brackets(detail::string_literal<Char, '{'>{},
detail::string_literal<Char, '}'>{});
}
FMT_CONSTEXPR void init(detail::range_format_constant<range_format::map>) {
range_formatter_.set_brackets(detail::string_literal<Char, '{'>{},
detail::string_literal<Char, '}'>{});
range_formatter_.underlying().set_brackets({}, {});
range_formatter_.underlying().set_separator(
detail::string_literal<Char, ':', ' '>{});
}
FMT_CONSTEXPR void init(
detail::range_format_constant<range_format::sequence>) {}
public:
FMT_CONSTEXPR formatter() {
init(detail::range_format_constant<range_format_kind<R, Char>::value>());
}
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return range_formatter_.parse(ctx);
}
template <typename FormatContext>
auto format(range_type& range, FormatContext& ctx) const
-> decltype(ctx.out()) {
return range_formatter_.format(range, ctx);
}
};
template <typename It, typename Sentinel, typename Char = char>