mirror of
https://github.com/fmtlib/fmt.git
synced 2024-09-18 20:10:04 +00:00
Implemented fmt::prepare()
Implementation of fmt::prepare() function and features around it.
This commit is contained in:
stryku
Victor Zverovich
parent
da55e96f53
commit
9a777b9e1c
@ -140,7 +140,7 @@ endfunction()
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# Define the fmt library, its includes and the needed defines.
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add_headers(FMT_HEADERS chrono.h color.h core.h format.h format-inl.h locale.h
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ostream.h printf.h time.h ranges.h)
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ostream.h prepare.h printf.h time.h ranges.h)
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set(FMT_SOURCES src/format.cc)
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if (HAVE_OPEN)
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add_headers(FMT_HEADERS posix.h)
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@ -372,15 +372,15 @@ template <typename Rep, typename Period, typename Char>
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struct formatter<std::chrono::duration<Rep, Period>, Char> {
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private:
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align_spec spec;
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internal::arg_ref<Char> width_ref;
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typedef internal::arg_ref<Char> arg_ref_type;
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arg_ref_type width_ref;
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mutable basic_string_view<Char> format_str;
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typedef std::chrono::duration<Rep, Period> duration;
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struct spec_handler {
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formatter &f;
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basic_parse_context<Char> &context;
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typedef internal::arg_ref<Char> arg_ref_type;
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basic_string_view<Char> format_str;
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template <typename Id>
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FMT_CONSTEXPR arg_ref_type make_arg_ref(Id arg_id) {
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@ -388,6 +388,12 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
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return arg_ref_type(arg_id);
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}
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FMT_CONSTEXPR arg_ref_type make_arg_ref(basic_string_view<Char> arg_id) {
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context.check_arg_id(arg_id);
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const auto str_val = internal::string_view_metadata(format_str, arg_id);
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return arg_ref_type(str_val);
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}
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FMT_CONSTEXPR arg_ref_type make_arg_ref(internal::auto_id) {
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return arg_ref_type(context.next_arg_id());
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}
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@ -410,7 +416,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
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-> decltype(ctx.begin()) {
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auto begin = ctx.begin(), end = ctx.end();
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if (begin == end) return begin;
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spec_handler handler{*this, ctx};
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spec_handler handler{*this, ctx, format_str};
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begin = internal::parse_align(begin, end, handler);
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if (begin == end) return begin;
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begin = internal::parse_width(begin, end, handler);
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@ -221,14 +221,13 @@ enum class emphasis : uint8_t {
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// We use rgb as name because some editors will show it as color direct in the
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// editor.
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struct rgb {
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FMT_CONSTEXPR_DECL rgb() : r(0), g(0), b(0) {}
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FMT_CONSTEXPR_DECL rgb(uint8_t r_, uint8_t g_, uint8_t b_)
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: r(r_), g(g_), b(b_) {}
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FMT_CONSTEXPR_DECL rgb(uint32_t hex)
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: r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b((hex) & 0xFF) {}
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FMT_CONSTEXPR_DECL rgb(color hex)
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: r((uint32_t(hex) >> 16) & 0xFF), g((uint32_t(hex) >> 8) & 0xFF),
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b(uint32_t(hex) & 0xFF) {}
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FMT_CONSTEXPR rgb() : r(0), g(0), b(0) {}
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FMT_CONSTEXPR rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {}
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FMT_CONSTEXPR rgb(uint32_t hex)
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: r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b(hex & 0xFF) {}
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FMT_CONSTEXPR rgb(color hex)
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: r((uint32_t(hex) >> 16) & 0xFF), g((uint32_t(hex) >> 8) & 0xFF),
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b(uint32_t(hex) & 0xFF) {}
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uint8_t r;
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uint8_t g;
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uint8_t b;
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@ -454,9 +454,11 @@ template <typename Char>
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inline basic_string_view<Char>
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to_string_view(basic_string_view<Char> s) { return s; }
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template <typename Char>
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template <typename Char, typename Traits, typename Allocator>
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inline basic_string_view<Char>
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to_string_view(const std::basic_string<Char> &s) { return s; }
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to_string_view(const std::basic_string<Char, Traits, Allocator> &s) {
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return {s.data(), s.size()};
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}
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template <typename Char>
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inline basic_string_view<Char> to_string_view(const Char *s) { return s; }
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@ -913,7 +915,8 @@ class basic_parse_context : private ErrorHandler {
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next_arg_id_ = -1;
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return true;
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}
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void check_arg_id(basic_string_view<Char>) {}
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FMT_CONSTEXPR void check_arg_id(basic_string_view<Char>) {}
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FMT_CONSTEXPR void on_error(const char *message) {
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ErrorHandler::on_error(message);
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@ -81,6 +81,15 @@
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# define FMT_SECURE_SCL 0
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#endif
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// Check whether we can use unrestricted unions and use struct if not.
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#ifndef FMT_UNRESTRICTED_UNION
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# if FMT_MSC_VER >= 1900 || FMT_GCC_VERSION >= 406 || FMT_CLANG_VERSION >= 303
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# define FMT_UNRESTRICTED_UNION union
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# else
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# define FMT_UNRESTRICTED_UNION struct
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# endif
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#endif
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#if FMT_SECURE_SCL
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# include <iterator>
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#endif
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@ -1104,6 +1113,7 @@ struct core_format_specs {
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FMT_CONSTEXPR core_format_specs() : precision(-1), flags(0), type(0) {}
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FMT_CONSTEXPR bool has(unsigned f) const { return (flags & f) != 0; }
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FMT_CONSTEXPR bool has_precision() const { return precision != -1; }
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};
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// Format specifiers.
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@ -1585,70 +1595,83 @@ class specs_setter {
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basic_format_specs<Char> &specs_;
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};
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// A format specifier handler that checks if specifiers are consistent with the
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// argument type.
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template <typename Handler>
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class specs_checker : public Handler {
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template <typename ErrorHandler>
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class numeric_specs_checker {
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public:
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FMT_CONSTEXPR specs_checker(const Handler& handler, internal::type arg_type)
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: Handler(handler), arg_type_(arg_type) {}
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FMT_CONSTEXPR numeric_specs_checker(ErrorHandler &eh, internal::type arg_type)
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: error_handler_(eh), arg_type_(arg_type) {}
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FMT_CONSTEXPR specs_checker(const specs_checker &other)
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: Handler(other), arg_type_(other.arg_type_) {}
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FMT_CONSTEXPR void on_align(alignment align) {
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if (align == ALIGN_NUMERIC)
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require_numeric_argument();
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Handler::on_align(align);
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}
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FMT_CONSTEXPR void on_plus() {
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check_sign();
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Handler::on_plus();
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}
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FMT_CONSTEXPR void on_minus() {
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check_sign();
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Handler::on_minus();
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}
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FMT_CONSTEXPR void on_space() {
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check_sign();
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Handler::on_space();
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}
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FMT_CONSTEXPR void on_hash() {
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require_numeric_argument();
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Handler::on_hash();
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}
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FMT_CONSTEXPR void on_zero() {
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require_numeric_argument();
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Handler::on_zero();
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}
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FMT_CONSTEXPR void end_precision() {
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if (is_integral(arg_type_) || arg_type_ == pointer_type)
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this->on_error("precision not allowed for this argument type");
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}
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private:
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FMT_CONSTEXPR void require_numeric_argument() {
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if (!is_arithmetic(arg_type_))
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this->on_error("format specifier requires numeric argument");
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error_handler_.on_error("format specifier requires numeric argument");
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}
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FMT_CONSTEXPR void check_sign() {
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require_numeric_argument();
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if (is_integral(arg_type_) && arg_type_ != int_type &&
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arg_type_ != long_long_type && arg_type_ != internal::char_type) {
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this->on_error("format specifier requires signed argument");
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error_handler_.on_error("format specifier requires signed argument");
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}
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}
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FMT_CONSTEXPR void check_precision() {
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if (is_integral(arg_type_) || arg_type_ == internal::pointer_type)
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error_handler_.on_error("precision not allowed for this argument type");
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}
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private:
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ErrorHandler &error_handler_;
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internal::type arg_type_;
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};
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// A format specifier handler that checks if specifiers are consistent with the
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// argument type.
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template <typename Handler>
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class specs_checker : public Handler {
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public:
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FMT_CONSTEXPR specs_checker(const Handler &handler, internal::type arg_type)
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: Handler(handler), checker_(*this, arg_type) {}
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FMT_CONSTEXPR specs_checker(const specs_checker &other)
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: Handler(other), checker_(*this, other.arg_type_) {}
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FMT_CONSTEXPR void on_align(alignment align) {
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if (align == ALIGN_NUMERIC)
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checker_.require_numeric_argument();
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Handler::on_align(align);
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}
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FMT_CONSTEXPR void on_plus() {
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checker_.check_sign();
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Handler::on_plus();
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}
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FMT_CONSTEXPR void on_minus() {
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checker_.check_sign();
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Handler::on_minus();
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}
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FMT_CONSTEXPR void on_space() {
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checker_.check_sign();
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Handler::on_space();
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}
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FMT_CONSTEXPR void on_hash() {
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checker_.require_numeric_argument();
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Handler::on_hash();
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}
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FMT_CONSTEXPR void on_zero() {
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checker_.require_numeric_argument();
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Handler::on_zero();
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}
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FMT_CONSTEXPR void end_precision() { checker_.check_precision(); }
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private:
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numeric_specs_checker<Handler> checker_;
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};
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template <template <typename> class Handler, typename T,
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typename Context, typename ErrorHandler>
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FMT_CONSTEXPR void set_dynamic_spec(
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@ -1702,28 +1725,52 @@ class specs_handler: public specs_setter<typename Context::char_type> {
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Context &context_;
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};
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struct string_view_metadata {
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FMT_CONSTEXPR string_view_metadata() : offset_(0u), size_(0u) {}
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template <typename Char>
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FMT_CONSTEXPR string_view_metadata(basic_string_view<Char> primary_string,
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basic_string_view<Char> view)
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: offset_(view.data() - primary_string.data()), size_(view.size()) {}
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FMT_CONSTEXPR string_view_metadata(std::size_t offset, std::size_t size)
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: offset_(offset), size_(size) {}
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template <typename S>
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FMT_CONSTEXPR typename std::enable_if<internal::is_string<S>::value,
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basic_string_view<FMT_CHAR(S)>>::type
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to_view(S &&str) const {
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const auto view = to_string_view(str);
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return basic_string_view<FMT_CHAR(S)>(view.data() + offset_, size_);
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}
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std::size_t offset_;
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std::size_t size_;
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};
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// An argument reference.
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template <typename Char>
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struct arg_ref {
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enum Kind { NONE, INDEX, NAME };
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typedef Char char_type;
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FMT_CONSTEXPR arg_ref() : kind(NONE), index(0) {}
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FMT_CONSTEXPR explicit arg_ref(unsigned index) : kind(INDEX), index(index) {}
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explicit arg_ref(basic_string_view<Char> nm) : kind(NAME) {
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name = {nm.data(), nm.size()};
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}
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FMT_CONSTEXPR arg_ref() : kind(NONE), val() {}
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FMT_CONSTEXPR explicit arg_ref(unsigned index) : kind(INDEX), val(index) {}
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FMT_CONSTEXPR explicit arg_ref(string_view_metadata name)
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: kind(NAME), val(name) {}
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FMT_CONSTEXPR arg_ref &operator=(unsigned idx) {
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kind = INDEX;
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index = idx;
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val.index = idx;
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return *this;
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}
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Kind kind;
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union {
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FMT_UNRESTRICTED_UNION value {
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FMT_CONSTEXPR value() : index(0u) {}
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FMT_CONSTEXPR value(unsigned id) : index(id) {}
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FMT_CONSTEXPR value(string_view_metadata n) : name(n) {}
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unsigned index;
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string_value<Char> name; // This is not string_view because of gcc 4.4.
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};
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string_view_metadata name;
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} val;
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};
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// Format specifiers with width and precision resolved at formatting rather
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@ -1768,8 +1815,7 @@ class dynamic_specs_handler :
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private:
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typedef arg_ref<char_type> arg_ref_type;
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template <typename Id>
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FMT_CONSTEXPR arg_ref_type make_arg_ref(Id arg_id) {
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FMT_CONSTEXPR arg_ref_type make_arg_ref(unsigned arg_id) {
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context_.check_arg_id(arg_id);
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return arg_ref_type(arg_id);
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}
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@ -1778,6 +1824,14 @@ class dynamic_specs_handler :
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return arg_ref_type(context_.next_arg_id());
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}
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FMT_CONSTEXPR arg_ref_type make_arg_ref(basic_string_view<char_type> arg_id) {
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context_.check_arg_id(arg_id);
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basic_string_view<char_type> format_str(
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context_.begin(), context_.end() - context_.begin());
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const auto id_metadata = string_view_metadata(format_str, arg_id);
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return arg_ref_type(id_metadata);
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}
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dynamic_format_specs<char_type> &specs_;
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ParseContext &context_;
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};
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@ -2138,14 +2192,14 @@ void handle_dynamic_spec(
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case arg_ref<char_type>::NONE:
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break;
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case arg_ref<char_type>::INDEX:
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internal::set_dynamic_spec<Handler>(
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value, ctx.get_arg(ref.index), ctx.error_handler());
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break;
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case arg_ref<char_type>::NAME:
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internal::set_dynamic_spec<Handler>(
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value, ctx.get_arg({ref.name.value, ref.name.size}),
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ctx.error_handler());
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internal::set_dynamic_spec<Handler>(value, ctx.get_arg(ref.val.index),
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ctx.error_handler());
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break;
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case arg_ref<char_type>::NAME: {
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const auto arg_id = ref.val.name.to_view(ctx.parse_context().begin());
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internal::set_dynamic_spec<Handler>(value, ctx.get_arg(arg_id),
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ctx.error_handler());
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} break;
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}
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}
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} // namespace internal
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@ -3511,12 +3565,11 @@ operator"" _a(const wchar_t *s, std::size_t) { return {s}; }
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FMT_END_NAMESPACE
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#define FMT_STRING(s) [] { \
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typedef typename std::remove_cv<std::remove_pointer< \
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typename std::decay<decltype(s)>::type>::type>::type ct; \
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struct str : fmt::compile_string { \
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typedef ct char_type; \
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FMT_CONSTEXPR operator fmt::basic_string_view<ct>() const { \
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return {s, sizeof(s) / sizeof(ct) - 1}; \
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typedef typename std::remove_cv<std::remove_pointer< \
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typename std::decay<decltype(s)>::type>::type>::type char_type; \
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FMT_CONSTEXPR operator fmt::basic_string_view<char_type>() const { \
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return {s, sizeof(s) / sizeof(char_type) - 1}; \
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} \
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}; \
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return str{}; \
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783
include/fmt/prepare.h
Normal file
783
include/fmt/prepare.h
Normal file
@ -0,0 +1,783 @@
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// Formatting library for C++ - format string compilation
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//
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// Copyright (c) 2012 - present, Victor Zverovich and fmt contributors
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// All rights reserved.
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//
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// For the license information refer to format.h.
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#ifndef FMT_PREPARE_H_
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#define FMT_PREPARE_H_
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#ifndef FMT_HAS_CONSTRUCTIBLE_TRAITS
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# define FMT_HAS_CONSTRUCTIBLE_TRAITS \
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(FMT_GCC_VERSION >= 407 || FMT_CLANG_VERSION || FMT_MSC_VER)
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#endif
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#include "format.h"
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#include <vector>
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FMT_BEGIN_NAMESPACE
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template <typename Char> struct format_part {
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public:
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struct named_argument_id {
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FMT_CONSTEXPR named_argument_id(internal::string_view_metadata id)
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: id(id) {}
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internal::string_view_metadata id;
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};
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struct argument_id {
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FMT_CONSTEXPR argument_id() : argument_id(0u) {}
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FMT_CONSTEXPR argument_id(unsigned id)
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: which(which_arg_id::index), val(id) {}
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FMT_CONSTEXPR argument_id(internal::string_view_metadata id)
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: which(which_arg_id::named_index), val(id) {}
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enum class which_arg_id { index, named_index };
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which_arg_id which;
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FMT_UNRESTRICTED_UNION value {
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FMT_CONSTEXPR value() : index(0u) {}
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FMT_CONSTEXPR value(unsigned id) : index(id) {}
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FMT_CONSTEXPR value(internal::string_view_metadata id)
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: named_index(id) {}
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unsigned index;
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internal::string_view_metadata named_index;
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}
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val;
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};
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struct specification {
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FMT_CONSTEXPR specification() : arg_id(0u) {}
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FMT_CONSTEXPR specification(unsigned id) : arg_id(id) {}
|
||||
|
||||
FMT_CONSTEXPR specification(internal::string_view_metadata id)
|
||||
: arg_id(id) {}
|
||||
|
||||
argument_id arg_id;
|
||||
internal::dynamic_format_specs<Char> parsed_specs;
|
||||
};
|
||||
|
||||
FMT_CONSTEXPR format_part()
|
||||
: which(which_value::argument_id), end_of_argument_id(0u), val(0u) {}
|
||||
|
||||
FMT_CONSTEXPR format_part(internal::string_view_metadata text)
|
||||
: which(which_value::text), end_of_argument_id(0u), val(text) {}
|
||||
|
||||
FMT_CONSTEXPR format_part(unsigned id)
|
||||
: which(which_value::argument_id), end_of_argument_id(0u), val(id) {}
|
||||
|
||||
FMT_CONSTEXPR format_part(named_argument_id arg_id)
|
||||
: which(which_value::named_argument_id), end_of_argument_id(0u),
|
||||
val(arg_id) {}
|
||||
|
||||
FMT_CONSTEXPR format_part(specification spec)
|
||||
: which(which_value::specification), end_of_argument_id(0u), val(spec) {}
|
||||
|
||||
enum class which_value {
|
||||
argument_id,
|
||||
named_argument_id,
|
||||
text,
|
||||
specification
|
||||
};
|
||||
|
||||
which_value which;
|
||||
std::size_t end_of_argument_id;
|
||||
FMT_UNRESTRICTED_UNION value {
|
||||
FMT_CONSTEXPR value() : arg_id(0u) {}
|
||||
FMT_CONSTEXPR value(unsigned id) : arg_id(id) {}
|
||||
FMT_CONSTEXPR value(named_argument_id named_id)
|
||||
: named_arg_id(named_id.id) {}
|
||||
FMT_CONSTEXPR value(internal::string_view_metadata t) : text(t) {}
|
||||
FMT_CONSTEXPR value(specification s) : spec(s) {}
|
||||
unsigned arg_id;
|
||||
internal::string_view_metadata named_arg_id;
|
||||
internal::string_view_metadata text;
|
||||
specification spec;
|
||||
} val;
|
||||
};
|
||||
|
||||
namespace internal {
|
||||
template <typename Char, typename PartsContainer>
|
||||
class format_preparation_handler : public internal::error_handler {
|
||||
private:
|
||||
typedef format_part<Char> part;
|
||||
|
||||
public:
|
||||
typedef internal::null_terminating_iterator<Char> iterator;
|
||||
|
||||
FMT_CONSTEXPR format_preparation_handler(basic_string_view<Char> format,
|
||||
PartsContainer &parts)
|
||||
: parts_(parts), format_(format), parse_context_(format) {}
|
||||
|
||||
FMT_CONSTEXPR void on_text(const Char *begin, const Char *end) {
|
||||
if (begin == end) {
|
||||
return;
|
||||
}
|
||||
const auto offset = begin - format_.data();
|
||||
const auto size = end - begin;
|
||||
parts_.add(part(string_view_metadata(offset, size)));
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR void on_arg_id() {
|
||||
parts_.add(part(parse_context_.next_arg_id()));
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR void on_arg_id(unsigned id) {
|
||||
parse_context_.check_arg_id(id);
|
||||
parts_.add(part(id));
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR void on_arg_id(basic_string_view<Char> id) {
|
||||
const auto view = string_view_metadata(format_, id);
|
||||
const auto arg_id = typename part::named_argument_id(view);
|
||||
parts_.add(part(arg_id));
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR void on_replacement_field(const Char *ptr) {
|
||||
auto last_part = parts_.last();
|
||||
last_part.end_of_argument_id = ptr - format_.begin();
|
||||
parts_.substitute_last(last_part);
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR const Char *on_format_specs(const Char *begin,
|
||||
const Char *end) {
|
||||
const auto specs_offset = to_unsigned(begin - format_.begin());
|
||||
|
||||
typedef basic_parse_context<Char> parse_context;
|
||||
internal::dynamic_format_specs<Char> parsed_specs;
|
||||
dynamic_specs_handler<parse_context> handler(
|
||||
parsed_specs, parse_context_);
|
||||
begin = parse_format_specs(begin, end, handler);
|
||||
|
||||
if (*begin != '}') {
|
||||
on_error("missing '}' in format string");
|
||||
}
|
||||
|
||||
const auto last_part = parts_.last();
|
||||
|
||||
auto specs = last_part.which == part::which_value::argument_id
|
||||
? typename part::specification(last_part.val.arg_id)
|
||||
: typename part::specification(last_part.val.named_arg_id);
|
||||
|
||||
specs.parsed_specs = parsed_specs;
|
||||
|
||||
auto new_part = part(specs);
|
||||
new_part.end_of_argument_id = specs_offset;
|
||||
|
||||
parts_.substitute_last(new_part);
|
||||
|
||||
return begin;
|
||||
}
|
||||
|
||||
private:
|
||||
PartsContainer &parts_;
|
||||
basic_string_view<Char> format_;
|
||||
basic_parse_context<Char> parse_context_;
|
||||
};
|
||||
|
||||
template <typename Format, typename PreparedPartsProvider, typename... Args>
|
||||
class prepared_format {
|
||||
public:
|
||||
typedef FMT_CHAR(Format) char_type;
|
||||
typedef format_part<char_type> format_part_t;
|
||||
typedef internal::checked_args<Format, Args...> checked_args;
|
||||
|
||||
prepared_format(Format f)
|
||||
: format_(std::move(f)), parts_provider_(to_string_view(format_)) {}
|
||||
|
||||
prepared_format() = delete;
|
||||
|
||||
std::size_t formatted_size(const Args &... args) const {
|
||||
const auto it = this->format_to(counting_iterator<char_type>(), args...);
|
||||
return it.count();
|
||||
}
|
||||
|
||||
template <typename OutputIt>
|
||||
inline typename std::enable_if<internal::is_output_iterator<OutputIt>::value,
|
||||
format_to_n_result<OutputIt>>::type
|
||||
format_to_n(OutputIt out, unsigned n, const Args &... args) const {
|
||||
format_arg_store<typename format_to_n_context<OutputIt, char_type>::type,
|
||||
Args...>
|
||||
as(args...);
|
||||
|
||||
typedef truncating_iterator<OutputIt> trunc_it;
|
||||
typedef output_range<trunc_it, char_type> range;
|
||||
range r(trunc_it(out, n));
|
||||
auto it = this->vformat_to(
|
||||
r, typename format_to_n_args<OutputIt, char_type>::type(as));
|
||||
return {it.base(), it.count()};
|
||||
}
|
||||
|
||||
std::basic_string<char_type> format(const Args &... args) const {
|
||||
basic_memory_buffer<char_type> buffer;
|
||||
typedef back_insert_range<internal::basic_buffer<char_type>> range;
|
||||
this->vformat_to(range(buffer), *checked_args(format_, args...));
|
||||
return to_string(buffer);
|
||||
}
|
||||
|
||||
template <typename Container>
|
||||
inline typename std::enable_if<is_contiguous<Container>::value,
|
||||
std::back_insert_iterator<Container>>::type
|
||||
format_to(std::back_insert_iterator<Container> out,
|
||||
const Args &... args) const {
|
||||
internal::container_buffer<Container> buffer(internal::get_container(out));
|
||||
typedef back_insert_range<internal::basic_buffer<char_type>> range;
|
||||
this->vformat_to(range(buffer), *checked_args(format_, args...));
|
||||
return out;
|
||||
}
|
||||
|
||||
template <typename OutputIt>
|
||||
inline OutputIt format_to(OutputIt out, const Args &... args) const {
|
||||
typedef typename format_context_t<OutputIt, char_type>::type context;
|
||||
typedef output_range<OutputIt, char_type> range;
|
||||
format_arg_store<context, Args...> as(args...);
|
||||
return this->vformat_to(range(out), basic_format_args<context>(as));
|
||||
}
|
||||
|
||||
template <std::size_t SIZE = inline_buffer_size>
|
||||
inline typename buffer_context<char_type>::type::iterator
|
||||
format_to(basic_memory_buffer<char_type, SIZE> &buf,
|
||||
const Args &... args) const {
|
||||
typedef back_insert_range<internal::basic_buffer<char_type>> range;
|
||||
return this->vformat_to(range(buf), *checked_args(format_, args...));
|
||||
}
|
||||
|
||||
private:
|
||||
template <typename Range, typename Context>
|
||||
typename Context::iterator vformat_to(Range out,
|
||||
basic_format_args<Context> args) const {
|
||||
const auto format_view = internal::to_string_view(format_);
|
||||
Context ctx(out.begin(), format_view, args);
|
||||
|
||||
const auto &parts = parts_provider_.parts();
|
||||
for (auto part_it = parts.begin(); part_it != parts.end(); ++part_it) {
|
||||
const auto &part = *part_it;
|
||||
const auto &value = part.val;
|
||||
|
||||
switch (part.which) {
|
||||
case format_part_t::which_value::text: {
|
||||
const auto text = value.text.to_view(format_view);
|
||||
auto out = ctx.out();
|
||||
auto &&it = internal::reserve(out, text.size());
|
||||
it = std::copy_n(text.begin(), text.size(), it);
|
||||
ctx.advance_to(out);
|
||||
} break;
|
||||
|
||||
case format_part_t::which_value::argument_id: {
|
||||
advance_parse_context_to_specification(ctx, part);
|
||||
format_arg<Range>(ctx, value.arg_id);
|
||||
} break;
|
||||
|
||||
case format_part_t::which_value::named_argument_id: {
|
||||
advance_parse_context_to_specification(ctx, part);
|
||||
const auto named_arg_id = value.named_arg_id.to_view(format_view);
|
||||
format_arg<Range>(ctx, named_arg_id);
|
||||
} break;
|
||||
case format_part_t::which_value::specification: {
|
||||
const auto &arg_id_value = value.spec.arg_id.val;
|
||||
const auto arg =
|
||||
value.spec.arg_id.which ==
|
||||
format_part_t::argument_id::which_arg_id::index
|
||||
? ctx.get_arg(arg_id_value.index)
|
||||
: ctx.get_arg(arg_id_value.named_index.to_view(format_));
|
||||
|
||||
auto specs = value.spec.parsed_specs;
|
||||
|
||||
handle_dynamic_spec<internal::width_checker>(specs.width_,
|
||||
specs.width_ref, ctx);
|
||||
handle_dynamic_spec<internal::precision_checker>(
|
||||
specs.precision, specs.precision_ref, ctx);
|
||||
|
||||
check_prepared_specs(specs, arg.type());
|
||||
advance_parse_context_to_specification(ctx, part);
|
||||
ctx.advance_to(
|
||||
visit_format_arg(arg_formatter<Range>(ctx, &specs), arg));
|
||||
} break;
|
||||
}
|
||||
}
|
||||
|
||||
return ctx.out();
|
||||
}
|
||||
|
||||
template <typename Context>
|
||||
void advance_parse_context_to_specification(Context &ctx,
|
||||
const format_part_t &part) const {
|
||||
const auto view = to_string_view(format_);
|
||||
const auto specification_begin = view.data() + part.end_of_argument_id;
|
||||
ctx.parse_context().advance_to(specification_begin);
|
||||
}
|
||||
|
||||
template <typename Range, typename Context, typename Id>
|
||||
void format_arg(Context &ctx, Id arg_id) const {
|
||||
ctx.parse_context().check_arg_id(arg_id);
|
||||
const auto stopped_at =
|
||||
visit_format_arg(arg_formatter<Range>(ctx), ctx.get_arg(arg_id));
|
||||
ctx.advance_to(stopped_at);
|
||||
}
|
||||
|
||||
template <typename Char>
|
||||
void check_prepared_specs(
|
||||
const basic_format_specs<Char> &specs, internal::type arg_type) const {
|
||||
internal::error_handler h;
|
||||
numeric_specs_checker<internal::error_handler> checker(h, arg_type);
|
||||
if (specs.align_ == ALIGN_NUMERIC) {
|
||||
checker.require_numeric_argument();
|
||||
}
|
||||
|
||||
if (specs.has(PLUS_FLAG | MINUS_FLAG | SIGN_FLAG)) {
|
||||
checker.check_sign();
|
||||
}
|
||||
|
||||
if (specs.has(HASH_FLAG)) {
|
||||
checker.require_numeric_argument();
|
||||
}
|
||||
|
||||
if (specs.has_precision()) {
|
||||
checker.check_precision();
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
Format format_;
|
||||
PreparedPartsProvider parts_provider_;
|
||||
};
|
||||
|
||||
template <typename Format> class compiletime_prepared_parts_type_provider {
|
||||
private:
|
||||
typedef FMT_CHAR(Format) char_type;
|
||||
|
||||
class count_handler {
|
||||
private:
|
||||
typedef internal::null_terminating_iterator<char_type> iterator;
|
||||
|
||||
public:
|
||||
FMT_CONSTEXPR count_handler() : counter_(0u) {}
|
||||
|
||||
FMT_CONSTEXPR void on_text(const char_type *begin, const char_type *end) {
|
||||
if (begin != end) {
|
||||
++counter_;
|
||||
}
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR void on_arg_id() { ++counter_; }
|
||||
FMT_CONSTEXPR void on_arg_id(unsigned) { ++counter_; }
|
||||
FMT_CONSTEXPR void on_arg_id(basic_string_view<char_type>) { ++counter_; }
|
||||
|
||||
FMT_CONSTEXPR void on_replacement_field(const char_type *) {}
|
||||
|
||||
FMT_CONSTEXPR const char_type *on_format_specs(const char_type *begin,
|
||||
const char_type *end) {
|
||||
return find_matching_brace(begin, end);
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR void on_error(const char *) {}
|
||||
|
||||
FMT_CONSTEXPR unsigned result() const { return counter_; }
|
||||
|
||||
private:
|
||||
FMT_CONSTEXPR const char_type *find_matching_brace(const char_type *begin,
|
||||
const char_type *end) {
|
||||
FMT_CONSTEXPR_DECL const basic_string_view<char_type> text = Format{};
|
||||
unsigned braces_counter{0u};
|
||||
for (; begin != end; ++begin) {
|
||||
if (*begin == '{') {
|
||||
++braces_counter;
|
||||
} else if (*begin == '}') {
|
||||
if (braces_counter == 0u) {
|
||||
break;
|
||||
}
|
||||
--braces_counter;
|
||||
}
|
||||
}
|
||||
|
||||
return begin;
|
||||
}
|
||||
|
||||
private:
|
||||
unsigned counter_;
|
||||
};
|
||||
|
||||
static FMT_CONSTEXPR unsigned count_parts() {
|
||||
FMT_CONSTEXPR_DECL const auto text = to_string_view(Format{});
|
||||
count_handler handler;
|
||||
internal::parse_format_string</*IS_CONSTEXPR=*/true>(text, handler);
|
||||
return handler.result();
|
||||
}
|
||||
|
||||
// Workaround for old compilers. Compiletime parts preparation will not be
|
||||
// performed with them anyway.
|
||||
#if FMT_USE_CONSTEXPR
|
||||
static FMT_CONSTEXPR_DECL const unsigned number_of_format_parts =
|
||||
compiletime_prepared_parts_type_provider::count_parts();
|
||||
#else
|
||||
static const unsigned number_of_format_parts = 0u;
|
||||
#endif
|
||||
|
||||
public:
|
||||
template <unsigned N> struct format_parts_array {
|
||||
typedef format_part<char_type> value_type;
|
||||
|
||||
FMT_CONSTEXPR format_parts_array() : arr{} {}
|
||||
|
||||
FMT_CONSTEXPR value_type &operator[](unsigned ind) { return arr[ind]; }
|
||||
|
||||
FMT_CONSTEXPR const value_type *begin() const { return arr; }
|
||||
|
||||
FMT_CONSTEXPR const value_type *end() const { return begin() + N; }
|
||||
|
||||
private:
|
||||
value_type arr[N];
|
||||
};
|
||||
|
||||
struct empty {
|
||||
// Parts preparator will search for it
|
||||
typedef format_part<char_type> value_type;
|
||||
};
|
||||
|
||||
typedef typename std::conditional<static_cast<bool>(number_of_format_parts),
|
||||
format_parts_array<number_of_format_parts>,
|
||||
empty>::type type;
|
||||
};
|
||||
|
||||
template <typename Parts> class compiletime_prepared_parts_collector {
|
||||
private:
|
||||
typedef typename Parts::value_type format_part;
|
||||
|
||||
public:
|
||||
FMT_CONSTEXPR explicit compiletime_prepared_parts_collector(Parts &parts)
|
||||
: parts_{parts}, counter_{0u} {}
|
||||
|
||||
FMT_CONSTEXPR void add(format_part part) { parts_[counter_++] = part; }
|
||||
|
||||
FMT_CONSTEXPR void substitute_last(format_part part) {
|
||||
parts_[counter_ - 1] = part;
|
||||
}
|
||||
|
||||
FMT_CONSTEXPR format_part last() { return parts_[counter_ - 1]; }
|
||||
|
||||
private:
|
||||
Parts &parts_;
|
||||
unsigned counter_;
|
||||
};
|
||||
|
||||
template <typename PartsContainer, typename Char>
|
||||
FMT_CONSTEXPR PartsContainer prepare_parts(basic_string_view<Char> format) {
|
||||
PartsContainer parts;
|
||||
internal::parse_format_string</*IS_CONSTEXPR=*/false>(
|
||||
format, format_preparation_handler<Char, PartsContainer>(format, parts));
|
||||
return parts;
|
||||
}
|
||||
|
||||
template <typename PartsContainer, typename Char>
|
||||
FMT_CONSTEXPR PartsContainer
|
||||
prepare_compiletime_parts(basic_string_view<Char> format) {
|
||||
typedef compiletime_prepared_parts_collector<PartsContainer> collector;
|
||||
|
||||
PartsContainer parts;
|
||||
collector c(parts);
|
||||
internal::parse_format_string</*IS_CONSTEXPR=*/true>(
|
||||
format, format_preparation_handler<Char, collector>(format, c));
|
||||
return parts;
|
||||
}
|
||||
|
||||
template <typename PartsContainer> class runtime_parts_provider {
|
||||
public:
|
||||
runtime_parts_provider() = delete;
|
||||
template <typename Char>
|
||||
runtime_parts_provider(basic_string_view<Char> format)
|
||||
: parts_(prepare_parts<PartsContainer>(format)) {}
|
||||
|
||||
const PartsContainer &parts() const { return parts_; }
|
||||
|
||||
private:
|
||||
PartsContainer parts_;
|
||||
};
|
||||
|
||||
template <typename Format, typename PartsContainer>
|
||||
struct compiletime_parts_provider {
|
||||
compiletime_parts_provider() = delete;
|
||||
template <typename Char>
|
||||
FMT_CONSTEXPR compiletime_parts_provider(basic_string_view<Char>) {}
|
||||
|
||||
const PartsContainer &parts() const {
|
||||
static FMT_CONSTEXPR_DECL const PartsContainer prepared_parts =
|
||||
prepare_compiletime_parts<PartsContainer>(
|
||||
internal::to_string_view(Format{}));
|
||||
|
||||
return prepared_parts;
|
||||
}
|
||||
};
|
||||
|
||||
template <typename PartsContainer>
|
||||
struct parts_container_concept_check : std::true_type {
|
||||
#if FMT_HAS_CONSTRUCTIBLE_TRAITS
|
||||
static_assert(std::is_copy_constructible<PartsContainer>::value,
|
||||
"PartsContainer is not copy constructible");
|
||||
static_assert(std::is_move_constructible<PartsContainer>::value,
|
||||
"PartsContainer is not move constructible");
|
||||
#endif
|
||||
|
||||
template <typename T, typename = void>
|
||||
struct has_format_part_type : std::false_type {};
|
||||
template <typename T>
|
||||
struct has_format_part_type<
|
||||
T, typename void_<typename T::format_part_type>::type> : std::true_type {
|
||||
};
|
||||
|
||||
static_assert(has_format_part_type<PartsContainer>::value,
|
||||
"PartsContainer doesn't provide format_part_type typedef");
|
||||
|
||||
struct check_second {};
|
||||
struct check_first : check_second {};
|
||||
|
||||
template <typename T> static std::false_type has_add_check(check_second);
|
||||
template <typename T>
|
||||
static decltype(declval<T>().add(declval<typename T::format_part_type>()),
|
||||
std::true_type()) has_add_check(check_first);
|
||||
typedef decltype(has_add_check<PartsContainer>(check_first())) has_add;
|
||||
static_assert(has_add::value, "PartsContainer doesn't provide add() method");
|
||||
|
||||
template <typename T> static std::false_type has_last_check(check_second);
|
||||
template <typename T>
|
||||
static decltype(declval<T>().last(),
|
||||
std::true_type()) has_last_check(check_first);
|
||||
typedef decltype(has_last_check<PartsContainer>(check_first())) has_last;
|
||||
static_assert(has_last::value,
|
||||
"PartsContainer doesn't provide last() method");
|
||||
|
||||
template <typename T>
|
||||
static std::false_type has_substitute_last_check(check_second);
|
||||
template <typename T>
|
||||
static decltype(
|
||||
declval<T>().substitute_last(declval<typename T::format_part_type>()),
|
||||
std::true_type()) has_substitute_last_check(check_first);
|
||||
typedef decltype(has_substitute_last_check<PartsContainer>(
|
||||
check_first())) has_substitute_last;
|
||||
static_assert(has_substitute_last::value,
|
||||
"PartsContainer doesn't provide substitute_last() method");
|
||||
|
||||
template <typename T> static std::false_type has_begin_check(check_second);
|
||||
template <typename T>
|
||||
static decltype(declval<T>().begin(),
|
||||
std::true_type()) has_begin_check(check_first);
|
||||
typedef decltype(has_begin_check<PartsContainer>(check_first())) has_begin;
|
||||
static_assert(has_begin::value,
|
||||
"PartsContainer doesn't provide begin() method");
|
||||
|
||||
template <typename T> static std::false_type has_end_check(check_second);
|
||||
template <typename T>
|
||||
static decltype(declval<T>().end(),
|
||||
std::true_type()) has_end_check(check_first);
|
||||
typedef decltype(has_end_check<PartsContainer>(check_first())) has_end;
|
||||
static_assert(has_end::value, "PartsContainer doesn't provide end() method");
|
||||
};
|
||||
|
||||
template <bool IS_CONSTEXPR, typename Format, typename /*PartsContainer*/>
|
||||
struct parts_provider_type {
|
||||
typedef compiletime_parts_provider<
|
||||
Format, typename compiletime_prepared_parts_type_provider<Format>::type>
|
||||
type;
|
||||
};
|
||||
|
||||
template <typename Format, typename PartsContainer>
|
||||
struct parts_provider_type</*IS_CONSTEXPR=*/false, Format, PartsContainer> {
|
||||
static_assert(parts_container_concept_check<PartsContainer>::value,
|
||||
"Parts container doesn't meet the concept");
|
||||
typedef runtime_parts_provider<PartsContainer> type;
|
||||
};
|
||||
|
||||
template <typename Format, typename PreparedPartsContainer, typename... Args>
|
||||
struct basic_prepared_format {
|
||||
typedef internal::prepared_format<Format,
|
||||
typename internal::parts_provider_type<
|
||||
is_compile_string<Format>::value,
|
||||
Format, PreparedPartsContainer>::type,
|
||||
Args...>
|
||||
type;
|
||||
};
|
||||
|
||||
template <typename Char>
|
||||
std::basic_string<Char> to_runtime_format(basic_string_view<Char> format) {
|
||||
return std::basic_string<Char>(format.begin(), format.size());
|
||||
}
|
||||
|
||||
template <typename Char>
|
||||
std::basic_string<Char> to_runtime_format(const Char *format) {
|
||||
return std::basic_string<Char>(format);
|
||||
}
|
||||
|
||||
template <typename Char, typename Container = std::vector<format_part<Char>>>
|
||||
class parts_container {
|
||||
public:
|
||||
typedef format_part<Char> format_part_type;
|
||||
|
||||
void add(format_part_type part) { parts_.push_back(std::move(part)); }
|
||||
|
||||
void substitute_last(format_part_type part) {
|
||||
parts_.back() = std::move(part);
|
||||
}
|
||||
|
||||
format_part_type last() { return parts_.back(); }
|
||||
|
||||
auto begin() -> decltype(internal::declval<Container>().begin()) {
|
||||
return parts_.begin();
|
||||
}
|
||||
|
||||
auto begin() const -> decltype(internal::declval<const Container>().begin()) {
|
||||
return parts_.begin();
|
||||
}
|
||||
|
||||
auto end() -> decltype(internal::declval<Container>().end()) {
|
||||
return parts_.end();
|
||||
}
|
||||
|
||||
auto end() const -> decltype(internal::declval<const Container>().end()) {
|
||||
return parts_.end();
|
||||
}
|
||||
|
||||
private:
|
||||
Container parts_;
|
||||
};
|
||||
|
||||
// Delegate preparing to preparator, to take advantage of a partial
|
||||
// specialization.
|
||||
template <typename Format, typename... Args> struct preparator {
|
||||
typedef parts_container<FMT_CHAR(Format)> container;
|
||||
typedef typename basic_prepared_format<Format, container, Args...>::type
|
||||
prepared_format_type;
|
||||
|
||||
static auto prepare(Format format) -> prepared_format_type {
|
||||
return prepared_format_type(std::move(format));
|
||||
}
|
||||
};
|
||||
|
||||
template <typename PassedFormat, typename PreparedFormatFormat,
|
||||
typename PartsContainer, typename... Args>
|
||||
struct preparator<PassedFormat, prepared_format<PreparedFormatFormat,
|
||||
PartsContainer, Args...>> {
|
||||
typedef prepared_format<PreparedFormatFormat, PartsContainer, Args...>
|
||||
prepared_format_type;
|
||||
|
||||
static auto prepare(PassedFormat format) -> prepared_format_type {
|
||||
return prepared_format_type(std::move(format));
|
||||
}
|
||||
};
|
||||
|
||||
struct compiletime_format_tag {};
|
||||
struct runtime_format_tag {};
|
||||
|
||||
template <typename Format> struct format_tag {
|
||||
typedef typename std::conditional<is_compile_string<Format>::value,
|
||||
compiletime_format_tag,
|
||||
runtime_format_tag>::type type;
|
||||
};
|
||||
|
||||
#if FMT_USE_CONSTEXPR
|
||||
template <typename Format, typename... Args>
|
||||
auto do_prepare(runtime_format_tag, Format format) {
|
||||
return preparator<Format, Args...>::prepare(std::move(format));
|
||||
}
|
||||
|
||||
template <typename Format, typename... Args>
|
||||
FMT_CONSTEXPR auto do_prepare(compiletime_format_tag, const Format &format) {
|
||||
return typename basic_prepared_format<Format, void, Args...>::type(format);
|
||||
}
|
||||
#else
|
||||
template <typename Format, typename... Args>
|
||||
auto do_prepare(const Format &format)
|
||||
-> decltype(preparator<Format, Args...>::prepare(format)) {
|
||||
return preparator<Format, Args...>::prepare(format);
|
||||
}
|
||||
#endif
|
||||
} // namespace internal
|
||||
|
||||
template <typename Char, typename Container = std::vector<format_part<Char>>>
|
||||
struct parts_container {
|
||||
typedef internal::parts_container<Char, Container> type;
|
||||
};
|
||||
|
||||
template <typename Format, typename PartsContainer, typename... Args>
|
||||
struct basic_prepared_format {
|
||||
typedef typename internal::basic_prepared_format<Format, PartsContainer,
|
||||
Args...>::type type;
|
||||
};
|
||||
|
||||
template <typename... Args> struct prepared_format {
|
||||
typedef typename basic_prepared_format<
|
||||
std::string, typename parts_container<char>::type, Args...>::type type;
|
||||
};
|
||||
|
||||
template <typename... Args> struct wprepared_format {
|
||||
typedef
|
||||
typename basic_prepared_format<std::wstring,
|
||||
typename parts_container<wchar_t>::type,
|
||||
Args...>::type type;
|
||||
};
|
||||
|
||||
#if FMT_USE_ALIAS_TEMPLATES
|
||||
|
||||
template <typename Char, typename Container = std::vector<format_part<Char>>>
|
||||
using parts_container_t = typename parts_container<Char, Container>::type;
|
||||
|
||||
template <typename Format, typename PreparedPartsContainer, typename... Args>
|
||||
using basic_prepared_format_t =
|
||||
typename basic_prepared_format<Format, PreparedPartsContainer,
|
||||
Args...>::type;
|
||||
|
||||
template <typename... Args>
|
||||
using prepared_format_t =
|
||||
basic_prepared_format_t<std::string, parts_container<char>, Args...>;
|
||||
|
||||
template <typename... Args>
|
||||
using wprepared_format_t =
|
||||
basic_prepared_format_t<std::wstring, parts_container<wchar_t>, Args...>;
|
||||
|
||||
#endif
|
||||
|
||||
#if FMT_USE_CONSTEXPR
|
||||
|
||||
template <typename... Args, typename Format>
|
||||
FMT_CONSTEXPR auto prepare(Format format) {
|
||||
return internal::do_prepare<Format, Args...>(
|
||||
typename internal::format_tag<Format>::type{}, std::move(format));
|
||||
}
|
||||
#else
|
||||
|
||||
template <typename... Args, typename Format>
|
||||
auto prepare(Format format) ->
|
||||
typename internal::preparator<Format, Args...>::prepared_format_type {
|
||||
return internal::preparator<Format, Args...>::prepare(std::move(format));
|
||||
}
|
||||
#endif
|
||||
|
||||
template <typename... Args, typename Char>
|
||||
auto prepare(const Char *format) ->
|
||||
typename internal::preparator<std::basic_string<Char>,
|
||||
Args...>::prepared_format_type {
|
||||
return prepare<Args...>(internal::to_runtime_format(format));
|
||||
}
|
||||
|
||||
template <typename... Args, typename Char, unsigned N>
|
||||
auto prepare(const Char(format)[N]) ->
|
||||
typename internal::preparator<std::basic_string<Char>,
|
||||
Args...>::prepared_format_type {
|
||||
const auto view = basic_string_view<Char>(format, N);
|
||||
return prepare<Args...>(internal::to_runtime_format(view));
|
||||
}
|
||||
|
||||
template <typename... Args, typename Char>
|
||||
auto prepare(basic_string_view<Char> format) ->
|
||||
typename internal::preparator<std::basic_string<Char>,
|
||||
Args...>::prepared_format_type {
|
||||
return prepare<Args...>(internal::to_runtime_format(format));
|
||||
}
|
||||
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
#endif // FMT_PREPARE_H_
|
||||
@ -94,6 +94,7 @@ if (NOT (MSVC AND BUILD_SHARED_LIBS))
|
||||
endif ()
|
||||
add_fmt_test(locale-test)
|
||||
add_fmt_test(ostream-test)
|
||||
add_fmt_test(prepare-test)
|
||||
add_fmt_test(printf-test)
|
||||
add_fmt_test(time-test)
|
||||
add_fmt_test(custom-formatter-test)
|
||||
|
||||
@ -2172,9 +2172,9 @@ TEST(FormatTest, ConstexprParseFormatSpecs) {
|
||||
static_assert(parse_test_specs("#").res == handler::HASH, "");
|
||||
static_assert(parse_test_specs("0").res == handler::ZERO, "");
|
||||
static_assert(parse_test_specs("42").width == 42, "");
|
||||
static_assert(parse_test_specs("{42}").width_ref.index == 42, "");
|
||||
static_assert(parse_test_specs("{42}").width_ref.val.index == 42, "");
|
||||
static_assert(parse_test_specs(".42").precision == 42, "");
|
||||
static_assert(parse_test_specs(".{42}").precision_ref.index == 42, "");
|
||||
static_assert(parse_test_specs(".{42}").precision_ref.val.index == 42, "");
|
||||
static_assert(parse_test_specs("d").type == 'd', "");
|
||||
static_assert(parse_test_specs("{<").res == handler::ERROR, "");
|
||||
}
|
||||
@ -2200,6 +2200,8 @@ struct test_context {
|
||||
|
||||
FMT_CONSTEXPR test_context &parse_context() { return *this; }
|
||||
FMT_CONSTEXPR test_context error_handler() { return *this; }
|
||||
FMT_CONSTEXPR const char *begin() { return FMT_NULL; }
|
||||
FMT_CONSTEXPR const char *end() { return FMT_NULL; }
|
||||
};
|
||||
|
||||
template <size_t N>
|
||||
@ -2247,11 +2249,11 @@ TEST(FormatTest, ConstexprDynamicSpecsHandler) {
|
||||
static_assert(parse_dynamic_specs("#").has(fmt::HASH_FLAG), "");
|
||||
static_assert(parse_dynamic_specs("0").align() == fmt::ALIGN_NUMERIC, "");
|
||||
static_assert(parse_dynamic_specs("42").width() == 42, "");
|
||||
static_assert(parse_dynamic_specs("{}").width_ref.index == 33, "");
|
||||
static_assert(parse_dynamic_specs("{42}").width_ref.index == 42, "");
|
||||
static_assert(parse_dynamic_specs("{}").width_ref.val.index == 33, "");
|
||||
static_assert(parse_dynamic_specs("{42}").width_ref.val.index == 42, "");
|
||||
static_assert(parse_dynamic_specs(".42").precision == 42, "");
|
||||
static_assert(parse_dynamic_specs(".{}").precision_ref.index == 33, "");
|
||||
static_assert(parse_dynamic_specs(".{42}").precision_ref.index == 42, "");
|
||||
static_assert(parse_dynamic_specs(".{}").precision_ref.val.index == 33, "");
|
||||
static_assert(parse_dynamic_specs(".{42}").precision_ref.val.index == 42, "");
|
||||
static_assert(parse_dynamic_specs("d").type == 'd', "");
|
||||
}
|
||||
|
||||
@ -2273,9 +2275,9 @@ TEST(FormatTest, ConstexprSpecsChecker) {
|
||||
static_assert(check_specs("#").res == handler::HASH, "");
|
||||
static_assert(check_specs("0").res == handler::ZERO, "");
|
||||
static_assert(check_specs("42").width == 42, "");
|
||||
static_assert(check_specs("{42}").width_ref.index == 42, "");
|
||||
static_assert(check_specs("{42}").width_ref.val.index == 42, "");
|
||||
static_assert(check_specs(".42").precision == 42, "");
|
||||
static_assert(check_specs(".{42}").precision_ref.index == 42, "");
|
||||
static_assert(check_specs(".{42}").precision_ref.val.index == 42, "");
|
||||
static_assert(check_specs("d").type == 'd', "");
|
||||
static_assert(check_specs("{<").res == handler::ERROR, "");
|
||||
}
|
||||
|
||||
@ -154,7 +154,7 @@ TEST(OStreamTest, WriteToOStreamMaxSize) {
|
||||
EXPECT_CALL(streambuf, xsputn(data, static_cast<std::streamsize>(n)))
|
||||
.WillOnce(testing::Return(max_streamsize));
|
||||
data += n;
|
||||
size -= n;
|
||||
size -= static_cast<std::size_t>(n);
|
||||
} while (size != 0);
|
||||
fmt::internal::write(os, buffer);
|
||||
}
|
||||
|
||||
643
test/prepare-test.cc
Normal file
643
test/prepare-test.cc
Normal file
@ -0,0 +1,643 @@
|
||||
// Formatting library for C++ - formatting library tests
|
||||
//
|
||||
// Copyright (c) 2012 - present, Victor Zverovich
|
||||
// All rights reserved.
|
||||
//
|
||||
// For the license information refer to prepare.h.
|
||||
|
||||
#include <cctype>
|
||||
#include <cfloat>
|
||||
#include <climits>
|
||||
#include <cmath>
|
||||
#include <cstring>
|
||||
#include <deque>
|
||||
#include <list>
|
||||
#include <memory>
|
||||
#include <stdint.h>
|
||||
#include <string>
|
||||
|
||||
// Check if fmt/prepare.h compiles with windows.h included before it.
|
||||
#ifdef _WIN32
|
||||
#include <windows.h>
|
||||
#endif
|
||||
|
||||
#include "fmt/prepare.h"
|
||||
#include "gmock.h"
|
||||
#include "gtest-extra.h"
|
||||
#include "mock-allocator.h"
|
||||
#include "util.h"
|
||||
|
||||
#undef ERROR
|
||||
#undef min
|
||||
#undef max
|
||||
|
||||
using testing::Return;
|
||||
using testing::StrictMock;
|
||||
|
||||
class mock_parts_collector {
|
||||
public:
|
||||
MOCK_METHOD1(add, void(fmt::format_part<char>));
|
||||
MOCK_METHOD1(substitute_last, void(fmt::format_part<char>));
|
||||
MOCK_METHOD0(last, fmt::format_part<char>());
|
||||
};
|
||||
|
||||
FMT_BEGIN_NAMESPACE
|
||||
bool operator==(const internal::string_view_metadata &lhs,
|
||||
const internal::string_view_metadata &rhs) {
|
||||
return std::tie(lhs.offset_, lhs.size_) == std::tie(rhs.offset_, rhs.size_);
|
||||
}
|
||||
bool operator!=(const internal::string_view_metadata &lhs,
|
||||
const internal::string_view_metadata &rhs) {
|
||||
return !(lhs == rhs);
|
||||
}
|
||||
|
||||
bool operator==(const format_part<char>::specification &lhs,
|
||||
const format_part<char>::specification &rhs) {
|
||||
if (lhs.arg_id.which != rhs.arg_id.which) {
|
||||
return false;
|
||||
}
|
||||
|
||||
typedef format_part<char>::argument_id::which_arg_id which_arg_id;
|
||||
switch (lhs.arg_id.which) {
|
||||
case which_arg_id::index: {
|
||||
if (lhs.arg_id.val.index != rhs.arg_id.val.index) {
|
||||
return false;
|
||||
}
|
||||
} break;
|
||||
case which_arg_id::named_index: {
|
||||
if (lhs.arg_id.val.named_index != rhs.arg_id.val.named_index) {
|
||||
return false;
|
||||
}
|
||||
} break;
|
||||
}
|
||||
|
||||
return std::tie(lhs.parsed_specs.width_, lhs.parsed_specs.fill_,
|
||||
lhs.parsed_specs.align_, lhs.parsed_specs.precision,
|
||||
lhs.parsed_specs.flags, lhs.parsed_specs.type) ==
|
||||
std::tie(rhs.parsed_specs.width_, rhs.parsed_specs.fill_,
|
||||
rhs.parsed_specs.align_, rhs.parsed_specs.precision,
|
||||
rhs.parsed_specs.flags, rhs.parsed_specs.type);
|
||||
}
|
||||
|
||||
bool operator!=(const format_part<char>::specification &lhs,
|
||||
const format_part<char>::specification &rhs) {
|
||||
return !(lhs == rhs);
|
||||
}
|
||||
|
||||
bool operator==(const format_part<char> &lhs,
|
||||
const fmt::format_part<char> &rhs) {
|
||||
typedef format_part<char>::which_value which_value;
|
||||
|
||||
if (lhs.which != rhs.which ||
|
||||
lhs.end_of_argument_id != rhs.end_of_argument_id) {
|
||||
return false;
|
||||
}
|
||||
|
||||
switch (lhs.which) {
|
||||
case which_value::argument_id: {
|
||||
return lhs.val.arg_id == rhs.val.arg_id;
|
||||
}
|
||||
|
||||
case which_value::named_argument_id: {
|
||||
return lhs.val.named_arg_id == rhs.val.named_arg_id;
|
||||
}
|
||||
|
||||
case which_value::text: {
|
||||
return lhs.val.text == rhs.val.text;
|
||||
}
|
||||
|
||||
case which_value::specification: {
|
||||
return lhs.val.spec == rhs.val.spec;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool operator!=(const fmt::format_part<char> &lhs,
|
||||
const fmt::format_part<char> &rhs) {
|
||||
return !(lhs == rhs);
|
||||
}
|
||||
FMT_END_NAMESPACE
|
||||
|
||||
TEST(PrepareTest, FormatPart_ComparisonOperators) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef fmt::internal::dynamic_format_specs<char> prepared_specs;
|
||||
|
||||
{
|
||||
const auto part = format_part(0u);
|
||||
const auto other = format_part(0u);
|
||||
EXPECT_EQ(part, other);
|
||||
}
|
||||
{
|
||||
const auto lhs = format_part(0u);
|
||||
const auto rhs = format_part(1u);
|
||||
EXPECT_NE(lhs, rhs);
|
||||
}
|
||||
{
|
||||
const auto lhs = format_part(fmt::internal::string_view_metadata(0, 42));
|
||||
const auto rhs = format_part(fmt::internal::string_view_metadata(0, 42));
|
||||
EXPECT_EQ(lhs, rhs);
|
||||
}
|
||||
{
|
||||
const auto lhs = format_part(fmt::internal::string_view_metadata(0, 42));
|
||||
const auto rhs = format_part(fmt::internal::string_view_metadata(0, 4422));
|
||||
EXPECT_NE(lhs, rhs);
|
||||
}
|
||||
{
|
||||
auto lhs = format_part(0u);
|
||||
auto rhs = format_part(fmt::internal::string_view_metadata(0, 42));
|
||||
EXPECT_NE(lhs, rhs);
|
||||
rhs = format_part(fmt::internal::string_view_metadata(0, 0));
|
||||
EXPECT_NE(lhs, rhs);
|
||||
}
|
||||
{
|
||||
auto lhs = format_part(0u);
|
||||
lhs.end_of_argument_id = 42;
|
||||
auto rhs = format_part(0u);
|
||||
rhs.end_of_argument_id = 42;
|
||||
EXPECT_EQ(lhs, rhs);
|
||||
rhs.end_of_argument_id = 13;
|
||||
EXPECT_NE(lhs, rhs);
|
||||
}
|
||||
{
|
||||
const auto specs_argument_id = 0u;
|
||||
const auto specs_named_argument_id =
|
||||
fmt::internal::string_view_metadata(0, 42);
|
||||
auto specs = format_part::specification(0u);
|
||||
auto lhs = format_part(specs);
|
||||
auto rhs = format_part(specs);
|
||||
EXPECT_EQ(lhs, rhs);
|
||||
|
||||
const auto specs_text = fmt::string_view("<10");
|
||||
specs.parsed_specs = prepared_specs();
|
||||
lhs = format_part(specs);
|
||||
rhs = format_part(specs);
|
||||
EXPECT_EQ(lhs, rhs);
|
||||
|
||||
specs = format_part::specification(specs_named_argument_id);
|
||||
lhs = format_part(specs);
|
||||
rhs = format_part(specs);
|
||||
EXPECT_EQ(lhs, rhs);
|
||||
|
||||
specs.parsed_specs = prepared_specs();
|
||||
lhs = format_part(specs);
|
||||
rhs = format_part(specs);
|
||||
EXPECT_EQ(lhs, rhs);
|
||||
|
||||
auto lhs_spec = format_part::specification(specs_argument_id);
|
||||
auto rhs_spec = format_part::specification(specs_named_argument_id);
|
||||
lhs = format_part(lhs_spec);
|
||||
rhs = format_part(rhs_spec);
|
||||
EXPECT_NE(lhs, rhs);
|
||||
|
||||
const auto lhs_specs_text = fmt::string_view("<10");
|
||||
const auto rhs_specs_text = fmt::string_view("<42");
|
||||
lhs_spec = format_part::specification(specs_argument_id);
|
||||
rhs_spec = format_part::specification(specs_argument_id);
|
||||
lhs_spec.parsed_specs.precision = 1;
|
||||
rhs_spec.parsed_specs.precision = 2;
|
||||
lhs = format_part(lhs_spec);
|
||||
rhs = format_part(rhs_spec);
|
||||
EXPECT_NE(lhs, rhs);
|
||||
}
|
||||
{
|
||||
const auto specs_text = fmt::string_view{"<10"};
|
||||
const auto specs_argument_id = 0u;
|
||||
const auto specs_named_argument_id =
|
||||
fmt::internal::string_view_metadata(0, 42);
|
||||
auto specs = format_part::specification(specs_argument_id);
|
||||
auto lhs = format_part(specs);
|
||||
auto rhs = format_part(0u);
|
||||
auto rhs2 = format_part(fmt::internal::string_view_metadata(0, 42));
|
||||
EXPECT_NE(lhs, rhs);
|
||||
EXPECT_NE(lhs, rhs2);
|
||||
|
||||
specs.parsed_specs = prepared_specs();
|
||||
lhs = format_part{specs};
|
||||
EXPECT_NE(lhs, rhs);
|
||||
EXPECT_NE(lhs, rhs2);
|
||||
|
||||
specs = format_part::specification(specs_named_argument_id);
|
||||
EXPECT_NE(lhs, rhs);
|
||||
EXPECT_NE(lhs, rhs2);
|
||||
|
||||
specs.parsed_specs = prepared_specs();
|
||||
lhs = format_part(specs);
|
||||
EXPECT_NE(lhs, rhs);
|
||||
EXPECT_NE(lhs, rhs2);
|
||||
}
|
||||
}
|
||||
|
||||
TEST(PrepareTest, FormatPreparationHandler_OnText_AddsPartWithText) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef StrictMock<mock_parts_collector> parts_mock;
|
||||
|
||||
parts_mock parts;
|
||||
const auto format = fmt::internal::to_string_view("text");
|
||||
fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
|
||||
parts);
|
||||
|
||||
const auto expected_text = fmt::internal::string_view_metadata(
|
||||
0u, static_cast<unsigned>(format.size()));
|
||||
EXPECT_CALL(parts, add(format_part(expected_text)));
|
||||
|
||||
handler.on_text(format.begin(), format.end());
|
||||
}
|
||||
|
||||
TEST(PrepareTest, FormatPreparationHandler_OnArgId_AddsPartWithIncrementedId) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef StrictMock<mock_parts_collector> parts_mock;
|
||||
|
||||
parts_mock parts;
|
||||
const auto format = fmt::internal::to_string_view("");
|
||||
fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
|
||||
parts);
|
||||
|
||||
const auto expected_first_arg_id = 0u;
|
||||
const auto expected_second_arg_id = 1u;
|
||||
EXPECT_CALL(parts, add(format_part(expected_first_arg_id)));
|
||||
EXPECT_CALL(parts, add(format_part(expected_second_arg_id)));
|
||||
|
||||
handler.on_arg_id();
|
||||
handler.on_arg_id();
|
||||
}
|
||||
|
||||
TEST(PrepareTest, FormatPreparationHandler_OnArgId_AddsPartWithPassedId) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef StrictMock<mock_parts_collector> parts_mock;
|
||||
|
||||
parts_mock parts;
|
||||
const auto format = fmt::internal::to_string_view("");
|
||||
fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
|
||||
parts);
|
||||
|
||||
const auto expected_first_arg_id = 2u;
|
||||
const auto expected_second_arg_id = 0u;
|
||||
const auto expected_third_arg_id = 1u;
|
||||
EXPECT_CALL(parts, add(format_part(expected_first_arg_id)));
|
||||
EXPECT_CALL(parts, add(format_part(expected_second_arg_id)));
|
||||
EXPECT_CALL(parts, add(format_part(expected_third_arg_id)));
|
||||
|
||||
handler.on_arg_id(expected_first_arg_id);
|
||||
handler.on_arg_id(expected_second_arg_id);
|
||||
handler.on_arg_id(expected_third_arg_id);
|
||||
}
|
||||
|
||||
TEST(PrepareTest, FormatPreparationHandler_OnArgId_AddsPartWithPassedNamedId) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef format_part::named_argument_id named_argument_id;
|
||||
typedef StrictMock<mock_parts_collector> parts_mock;
|
||||
|
||||
parts_mock parts;
|
||||
const auto format = fmt::internal::to_string_view("0123456789");
|
||||
fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
|
||||
parts);
|
||||
|
||||
const auto expected_first_arg_id = fmt::string_view(format.data(), 1);
|
||||
const auto expected_first_arg_view_metadata =
|
||||
fmt::internal::string_view_metadata(0, 1);
|
||||
const auto expected_second_arg_id = fmt::string_view(format.data() + 3, 2);
|
||||
const auto expected_second_arg_view_metadata =
|
||||
fmt::internal::string_view_metadata(3, 2);
|
||||
const auto expected_third_arg_id = fmt::string_view(format.data() + 6, 3);
|
||||
const auto expected_third_arg_view_metadata =
|
||||
fmt::internal::string_view_metadata(6, 3);
|
||||
EXPECT_CALL(parts, add(format_part(
|
||||
named_argument_id(expected_first_arg_view_metadata))));
|
||||
EXPECT_CALL(
|
||||
parts,
|
||||
add(format_part(named_argument_id(expected_second_arg_view_metadata))));
|
||||
EXPECT_CALL(parts, add(format_part(
|
||||
named_argument_id(expected_third_arg_view_metadata))));
|
||||
|
||||
handler.on_arg_id(expected_first_arg_id);
|
||||
handler.on_arg_id(expected_second_arg_id);
|
||||
handler.on_arg_id(expected_third_arg_id);
|
||||
}
|
||||
|
||||
TEST(PrepareTest,
|
||||
FormatPreparationHandler_OnReplacementField_SetsEndOfArgumentId) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef StrictMock<mock_parts_collector> parts_mock;
|
||||
|
||||
const auto format = fmt::internal::to_string_view("{:<}");
|
||||
parts_mock parts;
|
||||
|
||||
const auto last_part = format_part(0u);
|
||||
EXPECT_CALL(parts, last()).WillOnce(Return(last_part));
|
||||
|
||||
auto expected_substitution_part = last_part;
|
||||
expected_substitution_part.end_of_argument_id = 1;
|
||||
EXPECT_CALL(parts, substitute_last(expected_substitution_part));
|
||||
|
||||
fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
|
||||
parts);
|
||||
|
||||
handler.on_replacement_field(format.data() + 1);
|
||||
}
|
||||
|
||||
TEST(
|
||||
PrepareTest,
|
||||
FormatPreparationHandlerLastPartArgIndex_OnFormatSpecs_UpdatesLastAddedPart) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef StrictMock<mock_parts_collector> parts_mock;
|
||||
|
||||
parts_mock parts;
|
||||
const auto specification_test_text = fmt::internal::to_string_view("{:<10}");
|
||||
const auto specification_offset = 2u;
|
||||
const auto specification_begin_it =
|
||||
specification_test_text.begin() + specification_offset;
|
||||
fmt::internal::format_preparation_handler<char, parts_mock> handler(
|
||||
specification_test_text, parts);
|
||||
|
||||
const auto last_part = format_part(0u);
|
||||
format_part::specification expected_specification(0u);
|
||||
fmt::internal::dynamic_format_specs<char> specs{};
|
||||
specs.align_ = fmt::alignment::ALIGN_LEFT;
|
||||
specs.width_ = 10;
|
||||
expected_specification.parsed_specs = specs;
|
||||
|
||||
auto expected_substitution_part = format_part(expected_specification);
|
||||
expected_substitution_part.end_of_argument_id = specification_offset;
|
||||
|
||||
EXPECT_CALL(parts, last()).WillOnce(Return(last_part));
|
||||
EXPECT_CALL(parts, substitute_last(expected_substitution_part));
|
||||
|
||||
handler.on_format_specs(specification_begin_it,
|
||||
specification_test_text.end());
|
||||
}
|
||||
|
||||
TEST(
|
||||
PrepareTest,
|
||||
FormatPreparationHandlerLastPartNamedArgIndex_OnFormatSpecs_UpdatesLastAddedPart) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef StrictMock<mock_parts_collector> parts_mock;
|
||||
|
||||
parts_mock parts;
|
||||
const auto specification_test_text = fmt::internal::to_string_view("{:<10}");
|
||||
const auto specification_offset = 2u;
|
||||
const auto specification_begin_it =
|
||||
specification_test_text.begin() + specification_offset;
|
||||
fmt::internal::format_preparation_handler<char, parts_mock> handler(
|
||||
specification_test_text, parts);
|
||||
|
||||
const auto arg_id = fmt::internal::string_view_metadata(0, 42);
|
||||
const auto last_part = format_part(format_part::named_argument_id(arg_id));
|
||||
format_part::specification expected_specification(arg_id);
|
||||
fmt::internal::dynamic_format_specs<char> specs{};
|
||||
specs.align_ = fmt::alignment::ALIGN_LEFT;
|
||||
specs.width_ = 10;
|
||||
expected_specification.parsed_specs = specs;
|
||||
|
||||
auto expected_substitution_part = format_part(expected_specification);
|
||||
expected_substitution_part.end_of_argument_id = specification_offset;
|
||||
|
||||
EXPECT_CALL(parts, last()).WillOnce(Return(last_part));
|
||||
EXPECT_CALL(parts, substitute_last(expected_substitution_part));
|
||||
|
||||
handler.on_format_specs(specification_begin_it,
|
||||
specification_test_text.end());
|
||||
}
|
||||
|
||||
// compiletime_prepared_parts_type_provider is useful only with relaxed
|
||||
// constexpr.
|
||||
#if FMT_USE_CONSTEXPR
|
||||
template <unsigned EXPECTED_PARTS_COUNT, typename Format>
|
||||
void check_prepared_parts_type(Format format) {
|
||||
typedef fmt::internal::compiletime_prepared_parts_type_provider<decltype(
|
||||
format)>
|
||||
provider;
|
||||
typedef typename provider::template format_parts_array<EXPECTED_PARTS_COUNT>
|
||||
expected_parts_type;
|
||||
static_assert(
|
||||
std::is_same<typename provider::type, expected_parts_type>::value,
|
||||
"CompileTimePreparedPartsTypeProvider test failed");
|
||||
}
|
||||
|
||||
TEST(PrepareTest, CompileTimePreparedPartsTypeProvider) {
|
||||
check_prepared_parts_type<1u>(FMT_STRING("text"));
|
||||
check_prepared_parts_type<1u>(FMT_STRING("{}"));
|
||||
check_prepared_parts_type<2u>(FMT_STRING("text{}"));
|
||||
check_prepared_parts_type<2u>(FMT_STRING("{}text"));
|
||||
check_prepared_parts_type<3u>(FMT_STRING("text{}text"));
|
||||
check_prepared_parts_type<3u>(FMT_STRING("{:{}.{}} {:{}}"));
|
||||
|
||||
check_prepared_parts_type<3u>(FMT_STRING("{{{}}}")); // '{', 'argument', '}'
|
||||
check_prepared_parts_type<2u>(FMT_STRING("text{{")); // 'text', '{'
|
||||
check_prepared_parts_type<3u>(FMT_STRING("text{{ ")); // 'text', '{', ' '
|
||||
check_prepared_parts_type<2u>(FMT_STRING("}}text")); // '}', text
|
||||
check_prepared_parts_type<2u>(FMT_STRING("text}}text")); // 'text}', 'text'
|
||||
check_prepared_parts_type<4u>(
|
||||
FMT_STRING("text{{}}text")); // 'text', '{', '}', 'text'
|
||||
}
|
||||
#endif
|
||||
|
||||
// Use the struct instead of a function to workaround GCC 4.4's 'sorry,
|
||||
// unimplemented: mangling template_id_expr' issue.
|
||||
template <typename... Args> struct copied_prepared_format_creator {
|
||||
static decltype(fmt::prepare<Args...>(fmt::internal::declval<std::string>()))
|
||||
make(std::string format_str) {
|
||||
auto prepared_format = fmt::prepare<Args...>(std::move(format_str));
|
||||
auto copied_prepared_format = prepared_format;
|
||||
prepared_format = fmt::prepare<Args...>("");
|
||||
|
||||
return copied_prepared_format;
|
||||
}
|
||||
};
|
||||
|
||||
TEST(PrepareTest, CopyPreparedFormat_InternalStringViewsAreNotInvalidated) {
|
||||
auto prepared = copied_prepared_format_creator<int, std::string>::make(
|
||||
"before {} middle {} after");
|
||||
EXPECT_EQ("before 42 middle text after", prepared.format(42, "text"));
|
||||
|
||||
prepared = copied_prepared_format_creator<int, std::string>::make(
|
||||
"before {0} middle {1} after");
|
||||
EXPECT_EQ("before 42 middle text after", prepared.format(42, "text"));
|
||||
|
||||
{
|
||||
typedef decltype(fmt::arg("first", 42)) argument0;
|
||||
typedef decltype(fmt::arg("second", "text")) argument1;
|
||||
auto named_prepared =
|
||||
copied_prepared_format_creator<argument0, argument1>::make(
|
||||
"before {first} middle {second} after");
|
||||
EXPECT_EQ("before 42 middle text after",
|
||||
named_prepared.format(fmt::arg("first", 42),
|
||||
fmt::arg("second", "text")));
|
||||
}
|
||||
{
|
||||
typedef decltype(fmt::arg("value", "12345")) argument0;
|
||||
typedef decltype(fmt::arg("width", 10)) argument1;
|
||||
auto named_prepared =
|
||||
copied_prepared_format_creator<argument0, argument1>::make(
|
||||
">>>{value:>{width}}<<<");
|
||||
EXPECT_EQ(">>> 12345<<<",
|
||||
named_prepared.format(fmt::arg("value", "12345"),
|
||||
fmt::arg("width", 10)));
|
||||
}
|
||||
}
|
||||
|
||||
TEST(PepareTest, ReusedPreparedFormatType) {
|
||||
typedef fmt::prepared_format<std::string, int>::type prepared_format;
|
||||
|
||||
prepared_format prepared = fmt::prepare<prepared_format>("The {} is {}.");
|
||||
EXPECT_EQ("The answer is 42.", prepared.format("answer", 42));
|
||||
prepared = fmt::prepare<prepared_format>("40 {} 2 = {}");
|
||||
EXPECT_EQ("40 + 2 = 42", prepared.format("+", 42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, UserProvidedPartsContainerUnderlyingContainer) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef fmt::parts_container<char, std::list<format_part>>::type
|
||||
parts_container;
|
||||
typedef fmt::basic_prepared_format<std::string, parts_container, std::string,
|
||||
int>::type prepared_format;
|
||||
|
||||
prepared_format prepared = fmt::prepare<prepared_format>("The {} is {}.");
|
||||
EXPECT_EQ("The answer is 42.", prepared.format("answer", 42));
|
||||
prepared = fmt::prepare<prepared_format>("40 {} 2 = {}");
|
||||
EXPECT_EQ("40 + 2 = 42", prepared.format("+", 42));
|
||||
}
|
||||
|
||||
class custom_parts_container {
|
||||
public:
|
||||
typedef fmt::format_part<char> format_part_type;
|
||||
|
||||
private:
|
||||
typedef std::deque<format_part_type> parts;
|
||||
|
||||
public:
|
||||
void add(format_part_type part) { parts_.push_back(std::move(part)); }
|
||||
|
||||
void substitute_last(format_part_type part) {
|
||||
parts_.back() = std::move(part);
|
||||
}
|
||||
|
||||
format_part_type last() { return parts_.back(); }
|
||||
|
||||
auto begin() -> decltype(fmt::internal::declval<parts>().begin()) {
|
||||
return parts_.begin();
|
||||
}
|
||||
|
||||
auto begin() const
|
||||
-> decltype(fmt::internal::declval<const parts>().begin()) {
|
||||
return parts_.begin();
|
||||
}
|
||||
|
||||
auto end() -> decltype(fmt::internal::declval<parts>().begin()) {
|
||||
return parts_.end();
|
||||
}
|
||||
|
||||
auto end() const -> decltype(fmt::internal::declval<const parts>().begin()) {
|
||||
return parts_.end();
|
||||
}
|
||||
|
||||
private:
|
||||
parts parts_;
|
||||
};
|
||||
|
||||
TEST(PrepareTest, UserProvidedPartsContainer) {
|
||||
typedef fmt::basic_prepared_format<std::string, custom_parts_container,
|
||||
std::string, int>::type prepared_format;
|
||||
|
||||
prepared_format prepared = fmt::prepare<prepared_format>("The {} is {}.");
|
||||
EXPECT_EQ("The answer is 42.", prepared.format("answer", 42));
|
||||
prepared = fmt::prepare<prepared_format>("40 {} 2 = {}");
|
||||
EXPECT_EQ("40 + 2 = 42", prepared.format("+", 42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassConstCharPointerFormat) {
|
||||
const char *c_format = "test {}";
|
||||
const auto prepared = fmt::prepare<int>(c_format);
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const wchar_t *wc_format = L"test {}";
|
||||
const auto wprepared = fmt::prepare<int>(wc_format);
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassCharArrayFormat) {
|
||||
char c_format[] = "test {}";
|
||||
const auto prepared = fmt::prepare<int>(c_format);
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
wchar_t wc_format[] = L"test {}";
|
||||
const auto wprepared = fmt::prepare<int>(wc_format);
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassConstCharArrayFormat) {
|
||||
const char c_format[] = "test {}";
|
||||
const auto prepared = fmt::prepare<int>(c_format);
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const wchar_t wc_format[] = L"test {}";
|
||||
const auto wprepared = fmt::prepare<int>(wc_format);
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassStringLiteralFormat) {
|
||||
const auto prepared = fmt::prepare<int>("test {}");
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const auto wprepared = fmt::prepare<int>(L"test {}");
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassStringViewFormat) {
|
||||
const auto prepared =
|
||||
fmt::prepare<int>(fmt::basic_string_view<char>("test {}"));
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const auto wprepared =
|
||||
fmt::prepare<int>(fmt::basic_string_view<wchar_t>(L"test {}"));
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassBasicStringFormat) {
|
||||
const auto prepared = fmt::prepare<int>(std::string("test {}"));
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const auto wprepared = fmt::prepare<int>(std::wstring(L"test {}"));
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
#if FMT_USE_CONSTEXPR
|
||||
TEST(PrepareTest, PassCompileString) {
|
||||
const auto prepared = fmt::prepare<int>(FMT_STRING("test {}"));
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const auto wprepared = fmt::prepare<int>(FMT_STRING(L"test {}"));
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
#endif
|
||||
|
||||
template <typename T> struct user_allocator {
|
||||
typedef T value_type;
|
||||
typedef value_type *pointer;
|
||||
typedef const value_type *const_pointer;
|
||||
typedef value_type &reference;
|
||||
typedef const value_type &const_reference;
|
||||
typedef std::size_t size_type;
|
||||
typedef std::ptrdiff_t difference_type;
|
||||
|
||||
template <typename U> struct rebind { typedef user_allocator<U> other; };
|
||||
|
||||
user_allocator() = default;
|
||||
~user_allocator() = default;
|
||||
template <typename U> user_allocator(const user_allocator<U> &) {}
|
||||
|
||||
pointer allocate(size_type cnt,
|
||||
typename std::allocator<void>::const_pointer = 0) {
|
||||
return new value_type[cnt];
|
||||
}
|
||||
|
||||
void deallocate(pointer p, size_type cnt) { delete[] p; }
|
||||
|
||||
void construct(pointer p, const value_type &val) { new (p) value_type(val); }
|
||||
|
||||
void destroy(pointer p) { (*p).~value_type(); }
|
||||
|
||||
bool operator==(const user_allocator &other) const { return true; }
|
||||
bool operator!=(const user_allocator &other) const { return false; }
|
||||
};
|
||||
|
||||
TEST(PrepareTest, PassUserTypeFormat) {
|
||||
typedef std::basic_string<char, std::char_traits<char>, user_allocator<char>>
|
||||
user_format;
|
||||
const auto prepared = fmt::prepare<int>(user_format("test {}"));
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user